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Tiwari V, Gupta P, Malladi N, Salgar S, Banerjee SK. Doxorubicin induces phosphorylation of lamin A/C and loss of nuclear membrane integrity: A novel mechanism of cardiotoxicity. Free Radic Biol Med 2024; 218:94-104. [PMID: 38582228 DOI: 10.1016/j.freeradbiomed.2024.04.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/08/2024]
Abstract
Lamin A/C, essential inner nuclear membrane proteins, have been linked to progeria, a disease of accelerated aging, and many other diseases, which include cardiac disorder. Lamin A/C mutation and its phosphorylation are associated with altering nuclear shape and size. The role of lamin A/C in regulating normal cardiac function was reported earlier. In the present study, we hypothesized that Doxorubicin (Dox) may alter total lamin A/C expression and phosphorylation, thereby taking part in cardiac injury. An in vitro cellular injury model was generated with Dox (0.1-10.0 μM) treatment on cardiomyoblast cells (H9c2) to prove our hypothesis. Increased size and irregular (ameboid) nucleus shape were observed in H9c2 cells after Dox treatment. Similarly, we have observed a significant increase in cell death on increasing the Dox concentration. The expression of lamin A/C and its phosphorylation at serine 22 significantly decreased and increased, respectively in H9c2 cells and rat hearts after Dox exposure. Phosphorylation led to depolymerization of the lamin A/C in the inner nuclear membrane and was evidenced by their presence throughout the nucleoplasm as observed by immunocytochemistry techniques. Thinning and perforation on the walls of the nuclear membrane were observed in Dox-treated H9c2 cells. LMNA-overexpression in H9c2 protected the cells from Dox-induced cell death, reversing all changes described above. Further, improvement of lamin A/C levels was observed in Dox-treated H9c2 cells when treated with Purvalanol A, a CDK1 inhibitor and N-acetylcysteine, an antioxidant. The study provides new insight regarding Dox-induced cardiac injury with the involvement of lamin A/C and alteration of inner nuclear membrane structure.
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Affiliation(s)
- Vikas Tiwari
- National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
| | - Paras Gupta
- National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
| | - Navya Malladi
- National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
| | - Sanjay Salgar
- National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
| | - Sanjay K Banerjee
- National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Assam, India.
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Wang Y, Zhao M, Li J, Liu Y. Loganin exerts neuroprotective effect by inhibiting neuronal pyroptosis in rat with cerebral haemorrhage. Clin Exp Pharmacol Physiol 2024; 51:e13858. [PMID: 38636940 DOI: 10.1111/1440-1681.13858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/25/2024] [Accepted: 03/18/2024] [Indexed: 04/20/2024]
Abstract
Intracerebral haemorrhage (ICH) presents significant challenges in clinical management because of the high morbidity and mortality, necessitating novel therapeutic approaches. This study aimed to assess the neuroprotective effects of loganin in a rat ICH model. Sprague-Dawley rats were used, subjected to a collagenase-induced ICH model, followed by loganin treatment at doses of 2.5, 5 and 10 mg/kg. Neurological functions were evaluated using the modified neurological severity score (mNSS) and a rotarod test. Results indicated a significant improvement in neurological functions in loganin-treated groups, evident from the mNSS and rotarod tests, suggesting dose-dependent neuroprotection. Loganin also effectively reduced the blood-brain barrier (BBB) permeability and cerebral oedema. Additionally, it mitigated cellular pyroptosis, as shown by terminal deoxynucleotidyl transferase dUTP nick-end labelling staining and western blot analysis, which indicated reduced levels of pyroptosis markers in treated rats. Furthermore, loganin's regulatory effects on the adenosine A2A receptor and myosin light chain kinase pathways were observed, potentially underpinning its protective mechanism against ICH. The study concludes that loganin exhibits significant neuroprotective properties in a rat ICH model, highlighting its potential as a novel therapeutic strategy. Despite promising results, the study needs further research to determine loganin's therapeutic potential in human ICH patients. This research paves the way for further exploration into loganin's clinical applications, potentially revolutionizing treatment strategies for patients suffering from intracerebral haemorrhage.
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Affiliation(s)
- Yu Wang
- Center of Encephalopathy, Changchun University of Traditional Chinese Medicine Affiliated Third Clinical Hospital, Changchun, China
| | - Min Zhao
- Center of Encephalopathy, The Third Clinical Hospital Affiliated to Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Jing Li
- Center of Encephalopathy, Changchun University of Traditional Chinese Medicine Affiliated Third Clinical Hospital, Changchun, China
| | - Yue Liu
- Center of Encephalopathy, Changchun University of Traditional Chinese Medicine Affiliated Third Clinical Hospital, Changchun, China
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Lee M, Kim EJ, Yum MS. Early developmental changes in a rat model of malformations of cortical development: Abnormal neuronal migration and altered response to NMDA-induced excitotoxic injury. Exp Neurol 2024; 376:114759. [PMID: 38519010 DOI: 10.1016/j.expneurol.2024.114759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/28/2024] [Accepted: 03/18/2024] [Indexed: 03/24/2024]
Abstract
Malformations of cortical development (MCDs) are caused by abnormal neuronal migration processes during the fetal period and are a major cause of intractable epilepsy in infancy. However, the timing of hyperexcitability or epileptogenesis in MCDs remains unclear. To identify the early developmental changes in the brain of the MCD rat model, which exhibits increased seizure susceptibility during infancy (P12-15), we analyzed the pathological changes in the brains of MCD model rats during the neonatal period and tested NMDA-induced seizure susceptibility. Pregnant rats were injected with two doses of methylazoxymethanol acetate (MAM, 15 mg/kg, i.p.) to induce MCD, while controls were administered normal saline. The cortical development of the offspring was measured by performing magnetic resonance imaging (MRI) on postnatal days (P) 1, 5, and 8. At P8, some rats were sacrificed for immunofluorescence, Golgi staining, and Western analysis. In another set of rats, the number and latency to onset of spasms were monitored for 90 min after the NMDA (5 mg/kg i.p.) injection at P8. In MCD rats, in vivo MR imaging showed smaller brain volume and thinner cortex from day 1 after birth (p < 0.001). Golgi staining and immunofluorescence revealed abnormal neuronal migration, with a reduced number of neuronal cell populations and less dendritic arborization at P8. Furthermore, MCD rats exhibited a significant reduction in the expression of NMDA receptors and AMPAR4, along with an increase in AMPAR3 expression (p < 0.05). Although there was no difference in the latency to seizure onset between MCD rats and controls, the MCD rats survived significantly longer than the controls. These results provide insights into the early developmental changes in the cortex of a MCD rat model and suggest that delayed and abnormal neuronal development in the immature brain is associated with a blunted response to NMDA-induced excitotoxic injury. These developmental changes may be involved in the sudden onset of epilepsy in patients with MCD or prenatal brain injury.
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Affiliation(s)
- Minyoung Lee
- Department of Pediatrics, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea.
| | - Eun-Jin Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea; Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Mi-Sun Yum
- Department of Pediatrics, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea; Department of Pediatrics, Asan Medical Center Children's Hospital, Seoul 05505, Republic of Korea.
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Chen Q, Zhou Y, Yu M, Zhu S, Sun J, Du W, Chen Z, Tao J, Feng X, Zhang Q, Zhao Y. Transcription factor EB-mediated autophagy affects cell migration and inhibits apoptosis to promote endometriosis. Apoptosis 2024; 29:757-767. [PMID: 38358580 DOI: 10.1007/s10495-024-01939-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
Autophagy has emerged as an important process of cell metabolism. With continuous in-depth research on autophagy, TFEB has been a key transcription factor regulating autophagy levels in recent years. Studies have established that TFEB regulates autophagy and apoptosis in various diseases. However, the relationship between TFEB and the pathogenesis of endometriosis remains unclear. This study aimed to investigate the effect of TFEB on the mechanism of endometriosis progression. The results showed that TFEB and autophagy-related protein LC3 are highly expressed in ectopic endometrium of patients with endometriosis, overexpression of TFEB in cultured human endometrial stromal cells (HESCs) by lentivirus not only promoted autophagy but also inhibited apoptosis. In addition, the migration and invasion ability of HESCs were enhanced by TFEB overexpression. Furthermore, inhibiting autophagy with specific inhibitors can attenuate migration and invasion of HESCs induced by TFEB. The rat models of endometriosis show that TFEB knockdown can suppress lesion growth in vivo. Our results suggest that autophagy may be involved in the progression mechanism of endometriosis, and the mechanism of autophagy disorder in endometriosis is probably related to TFEB. TFEB may be a key molecule in promoting endometriosis.
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Affiliation(s)
- Qiuyu Chen
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yi Zhou
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Mengqi Yu
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Sennan Zhu
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Jindan Sun
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Wenzhuo Du
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Ziqi Chen
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Jiayu Tao
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Xiao Feng
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China
| | - Qiong Zhang
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China.
| | - Yu Zhao
- Department of Obstetrics and Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 306 Hualongqiao Road, Wenzhou, Zhejiang, 325000, China.
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Hoshino R, Ohashi N, Uta D, Ohashi M, Deguchi H, Baba H. Actions of remimazolam on inhibitory transmission of rat spinal dorsal horn neurons. J Pharmacol Sci 2024; 155:63-73. [PMID: 38677787 DOI: 10.1016/j.jphs.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/29/2024] Open
Abstract
Remimazolam is an ultra-short benzodiazepine that acts on the benzodiazepine site of γ-aminobutyric acid (GABA) receptors in the brain and induces sedation. Although GABA receptors are found localized in the spinal dorsal horn, no previous studies have reported the analgesic effects or investigated the cellular mechanisms of remimazolam on the spinal dorsal horn. Behavioral measures, immunohistochemistry, and in vitro whole-cell patch-clamp recordings of dorsal horn neurons were used to assess synaptic transmission. Intrathecal injection of remimazolam induced behavioral analgesia in inflammatory pain-induced mechanical allodynia (six rats/dose; p < 0.05). Immunohistochemical staining revealed that remimazolam suppressed spinal phosphorylated extracellular signal-regulated kinase activation (five rats/group, p < 0.05). In vitro whole-cell patch-clamp analysis demonstrated that remimazolam increased the frequency of GABAergic miniature inhibitory post-synaptic currents, prolonged the decay time (six rats; p < 0.05), and enhanced GABA currents induced by exogenous GABA (seven rats; p < 0.01). However, remimazolam did not affect miniature excitatory post-synaptic currents or amplitude of monosynaptic excitatory post-synaptic currents evoked by Aδ- and C-fiber stimulation (seven rats; p > 0.05). This study suggests that remimazolam induces analgesia by enhancing GABAergic inhibitory transmission in the spinal dorsal horn, suggesting its potential utility as a spinal analgesic for inflammatory pain.
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Affiliation(s)
- Rintaro Hoshino
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata, 951-8510, Japan
| | - Nobuko Ohashi
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata, 951-8510, Japan.
| | - Daisuke Uta
- Department of Applied Pharmacology, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama City, Toyama, 930-0194, Japan
| | - Masayuki Ohashi
- Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata, 951-8510, Japan
| | - Hiroyuki Deguchi
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata, 951-8510, Japan
| | - Hiroshi Baba
- Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata, 951-8510, Japan
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Song YT, Li SS, Chao CY, Shuang-Guo, Chen GZ, Wang SX, Zhang MX, Yin YL, Li P. Floralozone regulates MiR-7a-5p expression through AMPKα2 activation to improve cognitive dysfunction in vascular dementia. Exp Neurol 2024; 376:114748. [PMID: 38458310 DOI: 10.1016/j.expneurol.2024.114748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/07/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND The pathogenesis of vascular dementia (VD) is complex, and currently, no effective treatments have been recommended. Floralozone is a colorless liquid first discovered in Lagotis Gaertn. Recently, its medicinal value has been increasingly recognized. Our previous study has demonstrated that Floralozone can improve cognitive dysfunction in rats with VD by regulating the transient receptor potential melastatin 2 (TRPM2) and N-methyl-D-aspartate receptor (NMDAR) signaling pathways. However, the mechanism by which Floralozone regulates TRPM2 and NMDAR to improve VD remains unclear. AMP-activated protein kinase (AMPK) is an energy regulator in vivo; however, its role of AMPK activation in stroke remains controversial. MiR-7a-5p has been identified to be closely related to neuronal function. PURPOSE To explore whether Floralozone can regulate the miR-7a-5p level in vivo through AMPKα2 activation, affect the TRPM2 and NR2B expression levels, and improve VD symptoms. METHODS The VD model was established by a modified bilateral occlusion of the common carotid arteries (2-VO) of Sprague-Dawley (SD) rats and AMPKα2 KO transgenic (AMPKα2-/-) mice. Primary hippocampal neurons were modeled using oxygen and glucose deprivation (OGD). Morris water maze (MWM) test, hematoxylin-eosin staining (HE staining), and TUNEL staining were used to investigate the effects of Floralozone on behavior and hippocampal morphology in rats. Minichromosome maintenance complex component 2(MCM2) positive cells were used to investigate the effect of Floralozone on neurogenesis. Immunofluorescence staining, qRT-PCR, and western blot analysis were used to investigate the effect of Floralozone on the expression levels of AMPKα2, miR-7a-5p, TRPM2, and NR2B. RESULTS The SD rat experiment revealed that Floralozone improved spatial learning and memory, improved the morphology and structure of hippocampal neurons, reduced apoptosis of hippocampal neurons and promoted neurogenesis in VD rats. Floralozone could increase the miR-7a-5p expression level, activate AMPKα2 and NR2B expressions, and inhibit TRPM2 expression in hippocampal neurons of VD rats. The AMPKα2 KO transgenic (AMPKα2-/-) mice experiment demonstrated that Floralozone could regulate miR-7a-5p, TRPM2, and NR2B expression levels through AMPKα2 activation. The cell experiment revealed that the TRPM2 and NR2B expression levels were regulated by miR-7a-5p, whereas the AMPKα2 expression level was not. CONCLUSION Floralozone could regulate miR-7a-5p expression level by activating the protein expression of AMPKα2, control the protein expression of TRPM2 and NR2B, improve the morphology and structure of hippocampus neurons, reduce the apoptosis of hippocampus neurons, promote neurogenesis and improve the cognitive dysfunction.
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Affiliation(s)
- Yu-Ting Song
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China; JinShan Hospital of Fudan University, Shanghai 201508, China
| | - Shan-Shan Li
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Chun-Yan Chao
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China; Huang Huai University, Zhumadian 463000, China
| | - Shuang-Guo
- Hubei Key Laboratory of Diabetes and Angiopathy, Hubei University of Science and Technology, Xianning 437100, China
| | - Gui-Zi Chen
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shuang-Xi Wang
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Ming-Xiang Zhang
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China
| | - Ya-Ling Yin
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China.
| | - Peng Li
- Henan international joint laboratory of cardiovascular remodeling and drug intervention, Sino-UK Joint Laboratory of Brain Function and Injury and Department of Physiology and Neurobiology, School of Basic Medical Sciences, College of Pharmacy, Xinxiang Medical University, Xinxiang 453003, China.
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Wang T, Zhou G, Zhang W, Qian B, Dai L, Zhang J, Zhang L, Shi F, Jiang C, Wang J, Wang J, Wang Y, Lu Y. The influence of high-speed train's transient pressure change on the fetal growth of SD rats. Int J Environ Health Res 2024; 34:2407-2417. [PMID: 37667878 DOI: 10.1080/09603123.2023.2253173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/24/2023] [Indexed: 09/06/2023]
Abstract
This research aims to explore the influence of transient pressure fluctuation inside high-speed trains passing throught tunnels on the fetal growth of Sprague - Dawley (SD) rats. A pressure variation simulation system was designed and exposure experiments were performed on SD rats. Forty-eight SD rats are divided into two control groups and two experimental groups, and are then exposed to transient pressure alternation (-1200 Pa ~1200 Pa) from gestation day 0 to gestation day 5 (GD 0-5). Fetal growth and development indicators on GD12 and GD18 between experimental and control groups were compared. Statistical results showed that, compared to the control group, the key indicators in the experimental group, including placental weight, placental diameter, fetal weight, and crown-to-rump length have decreased by 4.77%, 3.38%, 6.20%, and 3.75% respectively on GD18. The findings imply that the pressure fluctuation environment of high-speed trains has potential effects on the fetal growth of SD rats.
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Affiliation(s)
- Tiantian Wang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha, Hunan, China
| | - Guo Zhou
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha, Hunan, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Bosen Qian
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Lei Dai
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Jiejie Zhang
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Zhang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Fangcheng Shi
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha, Hunan, China
| | - Chen Jiang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Jiabin Wang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Junyan Wang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Yu Wang
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
| | - Yibin Lu
- Key Laboratory of Traffic Safety on Track, Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha, China
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Lei W, Chen MH, Huang ZF, Chen XY, Wang JX, Zheng J, Zhu YZ, Lan XZ, He Y. Salidroside protects pulmonary artery endothelial cells against hypoxia-induced apoptosis via the AhR/NF-κB and Nrf2/HO-1 pathways. Phytomedicine 2024; 128:155376. [PMID: 38503152 DOI: 10.1016/j.phymed.2024.155376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/18/2023] [Accepted: 01/17/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND The apoptosis of pulmonary artery endothelial cells (PAECs) is an important factor contributing to the development of pulmonary hypertension (PH), a serious cardio-pulmonary vascular disorder. Salidroside (SAL) is a bioactive compound derived from an herb Rhodiola, but the potential protective effects of SAL on PAECs and the underlying mechanisms remain elusive. PURPOSE The objective of this study was to determine the role of SAL in the hypoxia-induced apoptosis of PAECs and to dissect the underlying mechanisms. STUDY DESIGN Male Sprague-Dawley (SD) rats were subjected to hypoxia (10% O2) for 4 weeks to establish a model of PH. Rats were intraperitoneally injected daily with SAL (2, 8, and 32 mg/kg/d) or vehicle. To define the molecular mechanisms of SAL in PAECs, an in vitro model of hypoxic cell injury was also generated by exposed PAECs to 1% O2 for 48 h. METHODS Various techniques including hematoxylin and eosin (HE) staining, immunofluorescence, flow cytometry, CCK-8, Western blot, qPCR, molecular docking, and surface plasmon resonance (SPR) were used to determine the role of SAL in rats and in PAECs in vitro. RESULTS Hypoxia stimulation increases AhR nuclear translocation and activates the NF-κB signaling pathway, as evidenced by upregulated expression of CYP1A1, CYP1B1, IL-1β, and IL-6, resulting in oxidative stress and inflammatory response and ultimately apoptosis of PAECs. SAL inhibited the activation of AhR and NF-κB, while promoted the nuclear translocation of Nrf2 and increased the expression of its downstream antioxidant proteins HO-1 and NQO1 in PAECs, ameliorating the hypoxia-induced oxidative stress in PAECs. Furthermore, SAL lowered right ventricular systolic pressure, and decreased pulmonary vascular remodeling and right ventricular hypertrophy in hypoxia-exposed rats. CONCLUSIONS SAL may attenuate the apoptosis of PAECs by suppressing NF-κB and activating Nrf2/HO-1 pathways, thereby delaying the progressive pathology of PH.
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Affiliation(s)
- Wei Lei
- TAAHC-GDMU Biomedical and Health Joint R&D Center, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agriculture and Animal Husbandry Resources, The Center for Xizang Chinese (Tibetan) Medicine Resource, Joint Laboratory for Tibetan Materia Medica Resource Scientific Protection and Utilization, Tibetan Medical Research Center of Tibet, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, PR China; Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, GDMU-TAAHC Biomedical and Health Joint R&D Center, Department of Precision Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Mei-Hong Chen
- Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, GDMU-TAAHC Biomedical and Health Joint R&D Center, Department of Precision Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China; Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Zu-Feng Huang
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Xiao-Ying Chen
- Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Jin-Xia Wang
- TAAHC-GDMU Biomedical and Health Joint R&D Center, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agriculture and Animal Husbandry Resources, The Center for Xizang Chinese (Tibetan) Medicine Resource, Joint Laboratory for Tibetan Materia Medica Resource Scientific Protection and Utilization, Tibetan Medical Research Center of Tibet, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, PR China; Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Jing Zheng
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Yi-Zhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, PR China
| | - Xiao-Zhong Lan
- TAAHC-GDMU Biomedical and Health Joint R&D Center, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agriculture and Animal Husbandry Resources, The Center for Xizang Chinese (Tibetan) Medicine Resource, Joint Laboratory for Tibetan Materia Medica Resource Scientific Protection and Utilization, Tibetan Medical Research Center of Tibet, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, PR China.
| | - Yuan He
- TAAHC-GDMU Biomedical and Health Joint R&D Center, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Tibet Characteristic Agriculture and Animal Husbandry Resources, The Center for Xizang Chinese (Tibetan) Medicine Resource, Joint Laboratory for Tibetan Materia Medica Resource Scientific Protection and Utilization, Tibetan Medical Research Center of Tibet, Tibet Agriculture and Animal Husbandry University, Nyingchi, Tibet, PR China; Guangdong Provincial Engineering Technology Research Center for Molecular Diagnosis and Innovative Drugs Translation of Cardiopulmonary Vascular Diseases, University Joint Laboratory of Guangdong Province and Macao Region on Molecular Targets and Intervention of Cardiovascular Diseases, GDMU-TAAHC Biomedical and Health Joint R&D Center, Department of Precision Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China; Laboratory of Cardiovascular Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China.
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Abdulla MH, AlMarabeh S, Bolger T, Lucking EF, O'Halloran KD, Johns EJ. Effects of intrarenal pelvic infusion of tumour necrosis factor-α and interleukin 1-β on reno-renal reflexes in anaesthetised rats. J Hypertens 2024; 42:1027-1038. [PMID: 38690904 DOI: 10.1097/hjh.0000000000003689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
OBJECTIVE Reno-renal reflexes are disturbed in cardiovascular and hypertensive conditions when elevated levels of pro-inflammatory mediators/cytokines are present within the kidney. We hypothesised that exogenously administered inflammatory cytokines tumour necrosis factor alpha (TNF-α) and interleukin (IL)-1β modulate the renal sympatho-excitatory response to chemical stimulation of renal pelvic sensory nerves. METHODS In anaesthetised rats, intrarenal pelvic infusions of vehicle [0.9% sodium chloride (NaCl)], TNF-α (500 and 1000 ng/kg) and IL-1β (1000 ng/kg) were maintained for 30 min before chemical activation of renal pelvic sensory receptors was performed using randomized intrarenal pelvic infusions of hypertonic NaCl, potassium chloride (KCl), bradykinin, adenosine and capsaicin. RESULTS The increase in renal sympathetic nerve activity (RSNA) in response to intrarenal pelvic hypertonic NaCl was enhanced during intrapelvic TNF-α (1000 ng/kg) and IL-1β infusions by almost 800% above vehicle with minimal changes in mean arterial pressure (MAP) and heart rate (HR). Similarly, the RSNA response to intrarenal pelvic adenosine in the presence of TNF-α (500 ng/kg), but not IL-1β, was almost 200% above vehicle but neither MAP nor HR were changed. There was a blunted sympatho-excitatory response to intrapelvic bradykinin in the presence of TNF-α (1000 ng/kg), but not IL-1β, by almost 80% below vehicle, again without effect on either MAP or HR. CONCLUSION The renal sympatho-excitatory response to renal pelvic chemoreceptor stimulation is modulated by exogenous TNF-α and IL-1β. This suggests that inflammatory mediators within the kidney can play a significant role in modulating the renal afferent nerve-mediated sympatho-excitatory response.
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Affiliation(s)
- Mohammed H Abdulla
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Sara AlMarabeh
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | - Tom Bolger
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Eric F Lucking
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
| | - Edward J Johns
- Department of Physiology, School of Medicine, College of Medicine and Health, University College Cork, Cork, Ireland
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60
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Tang X, Qin H, Zhang X, Yang H, Yang J, Chen P, Jin Y, Yang L. Design, optimization, and evaluation for a long-time-released transdermal microneedle delivery system containing estradiol. Drug Deliv Transl Res 2024; 14:1551-1566. [PMID: 38062287 DOI: 10.1007/s13346-023-01471-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2023] [Indexed: 04/28/2024]
Abstract
Transdermal drug delivery systems (TDDS) have drawbacks such as poor absorption, low blood concentration, and delayed effects. Dissolving microneedle has sharp tips and short length, which overcome patients' pain and improve transdermal efficiency but has low mechanical strength and drug loading capacity. This study thereby proposes a microemulsion-encapsulated and long-time-released transdermal microneedle (MN) delivery system with estradiol (Es) as the model drug. The microemulsion (ME) was optimized by utilizing the pseudo-ternary phase diagram and D-optimal mixture design. The estradiol microemulsion-encapsulated microneedle (Es-ME-MN) was optimized by Box-Behnken design and prepared by freeze-thaw method. The Es-ME-MN obtained was characterized and evaluated through a large variety of studies. Es-ME-MN had sufficient mechanical strength to pierce skin and was safe enough, the length of which was 600 μm, and the Es content was 177.12 ± 0.72 μg/patch without drug-excipient chemical interaction. In vitro permeation study showed that Es-ME-MN has a higher transdermal efficiency and lower retention capacity than commercial estradiol patch and conventional MN. Es plasma concentration began to increase at 3 h and remained at 12.98-23.52 ng/mL until 72 h by pharmacokinetic experiments in the Es-ME-MN group. Es-ME-MN rapidly achieves effective blood concentrations through needle puncture and microemulsion delivery and maintains blood concentrations through the baseplate long-time release. Microemulsion-encapsulated, organic solvent-free, and long-time-released transdermal microneedle will make progress and provide a new idea for transdermal delivery of lipophilic drugs.
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Affiliation(s)
- XiaoFei Tang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Huaiying Qin
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - XiaoYun Zhang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China.
| | - Haiyun Yang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Jianhua Yang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Ping Chen
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Yinli Jin
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
| | - Lu Yang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, China
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Xu HW, Fang XY, Chen H, Zhang SB, Yi YY, Ge XY, Liu XW, Wang SJ. Vitamin D delays intervertebral disc degeneration and improves bone quality in ovariectomized rats. J Orthop Res 2024; 42:1314-1325. [PMID: 38225869 DOI: 10.1002/jor.25778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/01/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024]
Abstract
Known to be involved in bone-cartilage metabolism, Vitamin D (VD) may play a role in human's disc pathophysiology. Given that postmenopausal women are prone to suffer VD deficiency and intervertebral disc degeneration (IDD), this study is intended to investigate whether VD can delay IDD in ovariectomized rats by improving bone microstructure and antioxidant stress. Female Sprague-Dawley rats were randomly allocated into four groups: sham, oophorectomy (OVX)+VD deficiency (VDD), OVX, and OVX+VD supplementation (VDS). In vivo, after a 6-month intervention, imaging and pathology slice examinations showed that IDD induced by OVX was significantly alleviated in VDS and deteriorated by VDD. The expressions of aggrecan and Collagen II in intervertebral disc were reduced by OVX and VDD, and elevated by VDS. Compared with the OVX+VDD and OVX group vertebrae, OVX+VDS group vertebrae showed significantly improved endplate porosity and lumbar bone mineral density with increased percent bone volume and trabecular thickness. Furthermore, 1α,25(OH)2D3 restored the redox balance (total antioxidant capacity, ratio of oxidized glutathione/glutathione) in the disc. The cocultivation of 1α,25(OH)2D3 and nucleus pulposus cells (NPCs) was conducted to observe its potential ability to resist excessive oxidative stress damage induced by H2O2. In vitro experiments revealed that 1α,25(OH)2D3 reduced the senescence, apoptosis, and extracellular matrix degradation induced by H2O2 in NPCs. In conclusion, VDS exhibits protective effects in OVX-induced IDD, partly by regulating the redox balance and preserving the microstructure of endplate. This finding provides a new idea for the prevention and treatment of IDD.
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Affiliation(s)
- Hao-Wei Xu
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xin-Yue Fang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Hao Chen
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shu-Bao Zhang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yu-Yang Yi
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao-Yong Ge
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiao-Wei Liu
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Shan-Jin Wang
- Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Spinal Diseases, Jinggangshan University, Jiangxi, China
- Department of orthopedic, Shanghai East Hospital, Ji'An Hospital, Jiangxi, China
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Chen Z, Gao W, Feng X, Zhou G, Zhang M, Zeng L, Hu X, Liu Z, Song H. A comparative study on the preparation and evaluation of solubilizing systems for silymarin. Drug Deliv Transl Res 2024; 14:1616-1634. [PMID: 37964172 DOI: 10.1007/s13346-023-01476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
Silymarin (SM) exhibits clinical efficacy in treating liver injuries, cirrhosis, and chronic hepatitis. However, its limited water solubility and low bioavailability hinder its therapeutic potential. The primary objective of this study was to compare the in vitro and in vivo characteristics of the four distinct SM solubilization systems, namely SM solid dispersion (SM-SD), SM phospholipid complex (SM-PC), SM sulfobutyl ether-β-cyclodextrin inclusion complex (SM-SBE-β-CDIC) and SM self-microemulsifying drug delivery system (SM-SMEDDS) to provide further insights into their potential for enhancing the solubility and bioavailability of SM. The formation of SM-SD, SM-PC, and SM-SBE-β-CDIC was thoroughly characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and powder X-ray diffractometry (PXRD) techniques to analyze the changes in their microscopic structure, molecular structure, and crystalline state. The particle size and polydispersity index (PDI) of SM-SMEDDS were 71.6 ± 1.57 nm, and 0.13 ± 0.03, respectively. The self-emulsifying time of SM-SMEDDS was 3.0 ± 0.3 min. SM-SMEDDS exhibited an improved in vitro dissolution rate and demonstrated the highest relative bioavailability compared to pure SM, SM-SD, SM-PC, SM-SBE-β-CDIC, and Legalon®. Consequently, SMEDDS shows promise as a drug delivery system for orally administered SM, offering enhanced solubility and bioavailability.
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Affiliation(s)
- Zhenzhen Chen
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Wenhao Gao
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Xianquan Feng
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Guizhi Zhou
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
- School of Pharmacy, Fujian University of Chinese Traditional Medicine, Fuzhou, 350108, China
| | - Minxin Zhang
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Lingjun Zeng
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Xiaomu Hu
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Zhihong Liu
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China.
| | - Hongtao Song
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China.
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Tirunavalli SK, Andugulapati SB. Geneticin ameliorates pulmonary fibrosis by attenuating the TGF-β/Smad via modulating AMPK/SIRT1 signaling. Life Sci 2024; 346:122626. [PMID: 38614295 DOI: 10.1016/j.lfs.2024.122626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
AIM Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive condition with unknown aetiology that causes the lung parenchyma to scar incessantly, lowering the quality of life and hastening death. In this investigation, we studied the anti-fibrotic activity of Geneticin (a derivative of gentamycin) using in vitro and in vivo models. MAIN METHODS The TGF-β-mediated differentiation model was adopted to investigate (fibrotic marker's levels/expression) the anti-fibrotic activity of geneticin (GNC) in in-vitro scenarios (LL29 and DHLF cells). In vivo, the bleomycin (BLM)-induced pulmonary fibrosis model was employed by administering BLM intratracheally. Post 14 days of BLM administration, animals were treated with geneticin (6.25, 12.5, and 25 mg·kg-1) for another 14 days, and their therapeutic effect was investigated using a spectrum of techniques. KEY FINDINGS RTqPCR and western-blot results revealed that geneticin treatment significantly attenuated the TGF-β/BLM mediated fibrotic cascade of markers in both in-vitro and in-vivo models respectively. Further, the BLM-induced pulmonary fibrosis model revealed, that geneticin dose-dependently reduced the BLM-induced inflammatory cell infiltrations, and thickness of the alveoli walls, improved the structural distortion of the lung, and aided in improving the survival rate of the rats. Picrosirus and Masson's trichrome staining indicated that geneticin therapy reduced collagen deposition and, as a result, lung functional characteristics were improved as assessed by flexivent. Mechanistic studies have shown that geneticin reduced fibrosis by attenuating the TGF-β/Smad through modulating the AMPK/SIRT1 signaling. SIGNIFICANCE These findings suggest that geneticin may be a promising therapeutic agent for the treatment of pulmonary fibrosis in clinical settings.
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Affiliation(s)
- Satya Krishna Tirunavalli
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India
| | - Sai Balaji Andugulapati
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India.
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Marcantonio CC, Perles GH, Lopes MES, Soares LFF, da Costa PI, Cerri PS, Cirelli JA. Influence of anti-sclerostin monoclonal antibody in the repair of post-extraction sockets of ovariectomized rats. Arch Oral Biol 2024; 162:105962. [PMID: 38569446 DOI: 10.1016/j.archoralbio.2024.105962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/05/2024] [Accepted: 03/21/2024] [Indexed: 04/05/2024]
Abstract
OBJECTIVE This study assessed the impact of an anti-sclerostin monoclonal antibody (Scl-Ab)-based osteoporosis drug on the post-extraction alveolar repair of ovariectomized rats. DESIGN Fifteen female rats were randomly distributed into three groups: CTR (healthy animals), OST (osteoporosis induced by ovariectomy), and OST+Scl-Ab (osteoporosis induction followed by Scl-Ab treatment). Ovariectomy or sham surgery was performed 30 days before baseline, and Scl-Ab or a vehicle was administered accordingly in the groups. After seven days, all rats underwent the first lower molar extraction and were euthanized 15 days later. Computed microtomography, histological analysis, and collagen content measurement were performed on post-extraction sockets and intact mandibular and maxillary bone areas. RESULTS Microtomographic analyses of the sockets and mandibles did not reveal significant differences between groups on bone morphometric parameters (p > 0.05), while maxillary bone analyses resulted in better maintenance of bone architecture in OST+Scl-Ab, compared to OST (p < 0.05). Descriptive histological analysis and polarization microscopy indicated better post-extraction socket repair characteristics and collagen content in OST+Scl-Ab compared to OST (p < 0.05). CONCLUSIONS Scl-Ab-based medication did not accelerate alveolar bone formation but exhibited better post-extraction repair characteristics, and collagen content compared to ovariectomized animals only.
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Affiliation(s)
- Camila Chierici Marcantonio
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil
| | - Gabriel Henrique Perles
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil
| | - Maria Eduarda Scordamaia Lopes
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil
| | - Lélio Fernando Ferreira Soares
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil
| | - Paulo Inácio da Costa
- Department of Clinical Analysis, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, Brazil
| | - Paulo Sergio Cerri
- Department of Morphology, Laboratory of Histology and Embryology, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil
| | - Joni Augusto Cirelli
- Department of Diagnosis and Surgery, School of Dentistry at Araraquara, São Paulo State University-UNESP, Araraquara, SP, Brazil.
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Chan HH, Mathews ND, Khanna H, Mandava N, Hogue O, Machado AG, Baker KB. The role of dorsolateral striatum in the effects of deep cerebellar stimulation-mediated motor recovery following ischemic stroke in rodents. Exp Neurol 2024; 376:114751. [PMID: 38484864 DOI: 10.1016/j.expneurol.2024.114751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/18/2024] [Accepted: 03/10/2024] [Indexed: 03/18/2024]
Abstract
Despite great advances in acute care and rehabilitation, stroke remains the leading cause of motor impairment in the industrialized world. We have developed a deep brain stimulation (DBS)-based approach for post-stroke rehabilitation that has shown reproducible effects in rodent models and has been recently translated to humans. Mechanisms underlying the rehabilitative effects of this novel therapy have been largely focused on the ipsilesional cortex, including cortical reorganization, synaptogenesis, neurogenesis and greater expression of markers of long-term potentiation. The role of subcortical structures on its therapeutic benefits, particularly the striatum, remain unclear. In this study, we compared the motor rehabilitative effects of deep cerebellar stimulation in two rodent models of cerebral ischemia: a) cortical ischemia; and b) combined striatal and cortical ischemia. All animals underwent the same procedures, including implantation of the electrodes and tethered connections for stimulation. Both experimental groups received four weeks of continuous lateral cerebellar nucleus (LCN) DBS and each was paired with a no stimulation, sham, group. Fine motor function was indexed using the pasta matrix task. Brain tissue was harvested for histology and immunohistochemical analyses. In the cortical-only ischemia, the average pasta matrix performance of both sham and stimulated groups reduced from 19 to 24 pieces to 7-8 pieces following the stroke induction. At the end of the four-week treatment, the performance of stimulated group was significantly greater than that of sham group (14 pieces vs 7 pieces, p < 0.0001). Similarly, in the combined cortical and striatal ischemia, the performance of both sham and stimulated groups reduced from 29 to 30 pieces to 7-11 pieces following the stroke induction. However, at the end of the four-week treatment, the performance of stimulated group was not significantly greater than that of sham group (15 pieces vs 11 pieces, p = 0.452). In the post-mortem analysis, the number of cells expressing CaMKIIα at the perilesional cortical and striatum of the LCN DBS treated animals receiving cortical-only stroke elevated but not those receiving cortical+striatal stroke. The current findings suggested that the observed, LCN DBS-enhanced motor recovery and perilesional plasticity may involve striatal mechanisms.
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Affiliation(s)
- Hugh H Chan
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Nicole D Mathews
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Hemen Khanna
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Nymisha Mandava
- Department of Quantitative Health Sciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Olivia Hogue
- Department of Quantitative Health Sciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Andre G Machado
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA; Neurological Institute, Cleveland Clinic, USA
| | - Kenneth B Baker
- Department of Neurosciences, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA; Neurological Institute, Cleveland Clinic, USA.
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Yang Z, Zhao Y, Wang Y, Liu X, Jiang Y, Jiang Y, Liu T, Hu Y, Chang H. Echinacoside ameliorates post-stroke depression by activating BDNF signaling through modulation of Nrf2 acetylation. Phytomedicine 2024; 128:155433. [PMID: 38547621 DOI: 10.1016/j.phymed.2024.155433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 01/26/2024] [Accepted: 02/06/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Post-stroke depression (PSD) affects approximately one-third of stroke survivors, leading to adverse outcomes in rehabilitation, reduced quality of life, and increased mortality rates. Despite these implications, the underlying causes of PSD remain unclear, posing challenges for prevention and treatment. Echinacoside (ECH), a natural compound with known neuroprotective and antidepressant properties, holds significant therapeutic potential for PSD. However, the precise mechanism of its action remains unknown. PURPOSE To unravel the specific mechanism through which ECH alleviates PSD by exploring the intricate interplay between ECH and Nrf2, as well as its impact on the BDNF/TrkB signaling axis. STUDY DESIGN AND METHODS A rat PSD model was established though middle cerebral artery occlusion coupled with chronic unpredictable mild stress, followed by ECH treatment. The rats' depressive state was evaluated using the sucrose preference test and force swimming test. Brain damage was assessed through TTC staining, Nissl staining, and TUNEL assay. The multifaceted mechanism of ECH in PSD was investigated using immunofluorescence, immunohistochemistry, RT-qPCR, dual-luciferase assay, and western blotting. Additionally, the interaction between ECH and Nrf2 was explored through molecular docking and microscale thermophoresis. RESULTS Our findings unveiled a novel facet of ECH action, demonstrating its unique ability to upregulate Nrf2 through acetylation within the hippocampus of PSD-affected rats (p < 0.05). Moreover, ECH showcased its distinctive potential by enhancing BDNF transcriptional activity, activating the BDNF/TrkB signaling axis, and orchestrating a comprehensive response against oxidative stress and apoptosis, thereby alleviating PSD symptoms in rats (p < 0.05). CONCLUSIONS This study not only provides insights into the pivotal role of Nrf2 in mediating the BDNF/TrkB axis activation by ECH but also highlights the novelty of ECH's mechanism in addressing PSD. The elucidation of these unique aspects positions ECH as a groundbreaking candidate for further exploration and development in the realm of PSD intervention.
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Affiliation(s)
- Zhou Yang
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China
| | - Yalin Zhao
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 138, Xianlin Road, Qixia District, Nanjing City, Jiangsu 210023, China
| | - Yanling Wang
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China; Guangzhou University of Chinese Medicine, No.12 Airport Road, Baiyun District, Guangzhou City, Guangdong Province, 510405, China
| | - Xiaoli Liu
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China
| | - Yongxia Jiang
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China
| | - Yongqu Jiang
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China
| | - Tingyu Liu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 138, Xianlin Road, Qixia District, Nanjing City, Jiangsu 210023, China
| | - Yue Hu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 138, Xianlin Road, Qixia District, Nanjing City, Jiangsu 210023, China; Shen Chun-ti Nation-Famous Experts Studio for Traditional Chinese Medicine Inheritance, Changzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou, Jiangsu 213003, China; Department of Neurology, Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210001, PR China.
| | - Hui Chang
- Lianyungang Hospital of Traditional Chinese Medicine, No. 160, Chaoyang Middle Road, Haizhou District, Lianyungang City, Jiangsu Province, 222004, China.
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Yang B, Xu Y, Yu J, Wang Q, Fan Q, Zhao X, Qiao Y, Zhang Z, Zhou Q, Yin D, He M, He H. Salidroside pretreatment alleviates ferroptosis induced by myocardial ischemia/reperfusion through mitochondrial superoxide-dependent AMPKα2 activation. Phytomedicine 2024; 128:155365. [PMID: 38552436 DOI: 10.1016/j.phymed.2024.155365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/28/2023] [Accepted: 01/14/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Ferroptosis, a form of regulated cell death (RCD) that relies on excessive reactive oxygen species (ROS) generation, Fe2+accumulation, abnormal lipid metabolism and is involved in various organ ischemia/reperfusion (I/R) injury, expecially in myocardium. Mitochondria are the powerhouses of eukaryotic cells and essential in regulating multiple RCD. However, the links between mitochondria and ferroptosis are still poorly understood. Salidroside (Sal), a natural phenylpropanoid glycoside isolated from Rhodiola rosea, has mult-bioactivities. However, the effects and mechanism in alleviating ferroptosis caused by myocardial I/R injury remains unclear. PURPOSE This study aimed to investigate whether pretreated with Sal could protect the myocardium against I/R damage and the underlying mechanisms. In particular, the relationship between Sal pretreatment, AMPKα2 activity, mitochondria and ROS generation was explored. STUDY DESIGN AND METHODS Firstly, A/R or I/R injury models were employed in H9c2 cells and Sprague-Dawley rats. And then the anti-ferroptotic effects and mechanism of Sal pretreatment was detected using multi-relevant indexes in H9c2 cells. Further, how does Sal pretreatment in AMPKα2 phosphorylation was explored. Finally, these results were validated by I/R injury in rats. RESULTS Similar to Ferrostatin-1 (a ferroptosis inhibitor) and MitoTEMPO, a mitochondrial free radical scavenger, Sal pretreatment effectively alleviated Fe2+ accumulation, redox disequilibrium and maintained mitochondrial energy production and function in I/R-induced myocardial injury, as demonstrated using multifunctional, enzymatic, and morphological indices. However, these effects were abolished by downregulation of AMPKα2 using an adenovirus, both in vivo and in vitro. Moreover, the results also provided a non-canonical mechanism that, under mild mitochondrial ROS generation, Sal pretreatment upregulated and phosphorylated AMPKα2, which enhanced mitochondrial complex I activity to activate innate adaptive responses and increase cellular tolerance to A/R injury. CONCLUSION Overall, our work highlighted mitochondria are of great impotance in myocardial I/R-induced ferroptosis and demonstrated that Sal pretreatment activated AMPKα2 against I/R injury, indicating that Sal could become a candidate phytochemical for the treatment of myocardial I/R injury.
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Affiliation(s)
- Bin Yang
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Ying Xu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Jingzhi Yu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Qihao Wang
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Qigui Fan
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Xiaoyu Zhao
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Yang Qiao
- Jiangxi Academy of Clinical Medical Sciences, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zeyu Zhang
- Jiangxi Academy of Clinical Medical Sciences, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Qing Zhou
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Dong Yin
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Ming He
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China.
| | - Huan He
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China.
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Chen Y, Zhang J, Li F. Inhibitory role of remifentanil in hepatic ischemia-reperfusion injury through activation of Fmol/Parkin signaling pathway: A study based on network pharmacology analysis and high-throughput sequencing. Phytomedicine 2024; 128:155300. [PMID: 38518639 DOI: 10.1016/j.phymed.2023.155300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 11/13/2023] [Accepted: 12/17/2023] [Indexed: 03/24/2024]
Abstract
BACKGROUND This study was conducted to elucidate the critical molecular pathways underlying the protective effects of remifentanil against hepatic ischemia-reperfusion injury in rats. Our approach integrated network pharmacology analysis with high-throughput sequencing to achieve a comprehensive understanding of the mechanisms involved. STUDY DESIGN/METHODS The study utilized GSE24430 gene expression data from GEO to investigate remifentanil's impact on Hepatic Ischemia-Reperfusion Injury in rats. Weighted Correlation Network Analysis (WGCNA) was employed to pinpoint crucial genes and identify modules of co-expressed genes. Differential analysis with the "Limma" package revealed genes differentially expressed in IRI vs. control groups. PubChem and PharmMapper provided target genes affected by remifentanil. Protein-protein interaction networks were constructed via GeneCards and STRING. Functional analysis pinpointed core genes involved in remifentanil's IRI alleviation. IRI rat models were established, and hepatic injury indicators, liver structure via H&E staining, autophagosome counts via electron microscopy, and gene/protein expression via RT-qPCR and Western blot were assessed. High-throughput sequencing analyzed molecular pathways affected by varying remifentanil doses in IRI rats. RESULTS In the study, we discovered four primary co-expression modules associated with hepatic IRI, and the grey module exhibited the highest correlation with hepatic IRI.A total of sixty-eight genes that were differentially expressed were found to have a connection with hepatic IRI.Network pharmacology analysis found that remifentanil may alleviate hepatic IRI through Fmol.found that the Fmol/Parkin signaling pathway may alleviate hepatic IRI via Additionally, the database autophagy. The established hepatic IRI rat models further confirmed the above findings. CONCLUSION Our study established that remifentanil triggers the Fmol/Parkin signaling cascade, amplifying the expression levels of Fmol and Parkin. This process culminates in the activation of autophagy within hepatic cells, ultimately alleviating hepatic ischemia-reperfusion injury (IRI).
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Affiliation(s)
- Yisi Chen
- Department of Anesthesiology, Huai'an First People's Hospital, Huai'an 223300, China.
| | - Jun Zhang
- Department of Anesthesiology, Huai'an First People's Hospital, Huai'an 223300, China
| | - Fayin Li
- Department of Anesthesiology, Huai'an First People's Hospital, Huai'an 223300, China
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Abdo Qaid EY, Abdullah Z, Zakaria R, Long I. Minocycline protects against lipopolysaccharide-induced glial cells activation and oxidative stress damage in the medial prefrontal cortex (mPFC) of the rat. Int J Neurosci 2024; 134:56-65. [PMID: 35638219 DOI: 10.1080/00207454.2022.2084092] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/17/2022] [Indexed: 12/22/2022]
Abstract
PURPOSE/AIM Neuroinflammation and oxidative stress have been encountered in neurodegenerative diseases such as Alzheimer's disease (AD). However, the neuroprotective effects of minocycline against lipopolysaccharide (LPS)-induced glial cells activation and oxidative stress damage in the medial prefrontal cortex (mPFC) of rats are still elusive. The purpose of this study is to investigate the effects of minocycline and memantine, an N-methyl-D-aspartate (NMDA) receptor antagonist, on the microglia and astrocytes expression, as well as oxidative stress levels in the mPFC of LPS injected rats. MATERIALS AND METHODS Fifty adult Male Sprague Dawley rats were divided into five groups: control, LPS (5 mg/kg), LPS treated with minocycline (25 mg/kg), LPS treated with minocycline (50 mg/kg) and LPS treated with memantine (10 mg/kg). The immunohistochemistry and western blotting were used to analyse the expressions and densities of microglia marker (Iba-1) and astrocyte marker, (GFAP) while enzyme-linked immunosorbent assay (ELISA) was used to measure the protein carbonyl (PCO), malondialdehyde (MDA), catalase (CAT), and superoxide dismutase (SOD) levels. RESULTS In comparison to the control group, the expression and density of Iba-1 and GFAP were significantly enhanced in the LPS group (p < 0.05). LPS group also exhibited significantly higher levels of PCO and MDA (p < 0.05) and significantly lower levels of CAT and SOD (p < 0.05) when compared to the control group. Both minocycline and memantine-treated LPS rats were able to protect against these effects. CONCLUSION Minocycline, like memantine treatment, reduces oxidative stress in the mPFC of LPS rats via inhibition of glial cells activation.
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Affiliation(s)
- Entesar Yaseen Abdo Qaid
- School of Health Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Malaysia
- Faculty of Medicine and Health Sciences, Department of Histology, Taiz University, Taiz, Yemen
| | - Zuraidah Abdullah
- School of Health Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Malaysia
| | - Rahimah Zakaria
- Department of Physiology, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Malaysia
| | - Idris Long
- School of Health Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Malaysia
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Shen W, Li C, Liu Q, Cai J, Wang Z, Pang Y, Ning G, Yao X, Kong X, Feng S. Celastrol inhibits oligodendrocyte and neuron ferroptosis to promote spinal cord injury recovery. Phytomedicine 2024; 128:155380. [PMID: 38507854 DOI: 10.1016/j.phymed.2024.155380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/01/2024] [Accepted: 01/17/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Spinal cord injury (SCI) is a traumatic injury to the central nervous system and can cause lipid peroxidation in the spinal cord. Ferroptosis, an iron-dependent programmed cell death, plays a key role in the pathophysiology progression of SCI. Celastrol, a widely used antioxidant drug, has potential therapeutic value for nervous system. PURPOSE To investigate whether celastrol can be a reliable candidate for ferroptosis inhibitor and the molecular mechanism of celastrol in repairing SCI by inhibiting ferroptosis. METHODS First, a rat SCI model was constructed, and the recovery of motor function was observed after treatment with celastrol. The regulatory effect of celastrol on ferroptosis pathway Nrf2-xCT-GPX4 was detected by Western blot and immunofluorescence. Finally, the ferroptosis model of neurons and oligodendrocytes was constructed in vitro to further verify the mechanism of inhibiting ferroptosis by celastrol. RESULTS Our results demonstrated that celastrol promoted the recovery of spinal cord tissue and motor function in SCI rats. Further in vitro and in vivo studies showed that celastrol significantly inhibited ferroptosis in neurons and oligodendrocytes and reduced the accumulation of ROS. Finally, we found that celastrol could inhibit ferroptosis by up-regulating the Nrf2-xCT-GPX4 axis to repair SCI. CONCLUSION Celastrol effectively inhibits ferroptosis after SCI by upregulating the Nrf2-xCT-GPX4 axis, reducing the production of lipid ROS, protecting the survival of neurons and oligodendrocytes, and improving the functional recovery.
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Affiliation(s)
- Wenyuan Shen
- Spine Surgery Department of the Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Street, Jinan, Shandong 250033, PR China; Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China
| | - Chuanhao Li
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Quan Liu
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Jun Cai
- Tianjin Medicine and Health Research Center, Tianjin Institute of Medical & Pharmaceutical Sciences, Tianjin, 300020, PR China
| | - Zhishuo Wang
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Yilin Pang
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Guangzhi Ning
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China
| | - Xue Yao
- Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
| | - Xiaohong Kong
- Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
| | - Shiqing Feng
- Spine Surgery Department of the Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Street, Jinan, Shandong 250033, PR China; Department of Orthopedics, International Science and Technology Cooperation Base of Spinal Cord Injury, Tianjin Key Laboratory of Spine and Spinal Cord Injury, Tianjin Medical University General Hospital, 154 Anshan Road, Heping District, Tianjin 300052, PR China; Orthopedic Research Center of Shandong University & Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250063, PR China.
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Zhang S, Chen Q, Jin M, Ren J, Sun X, Zhang Z, Luo Y, Sun X. Notoginsenoside R1 alleviates cerebral ischemia/reperfusion injury by inhibiting the TLR4/MyD88/NF-κB signaling pathway through microbiota-gut-brain axis. Phytomedicine 2024; 128:155530. [PMID: 38493723 DOI: 10.1016/j.phymed.2024.155530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/10/2024] [Accepted: 03/10/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Ischemic stroke (IS) ranks as the second common cause of death worldwide. However, a narrow thrombolysis timeframe and ischemia-reperfusion (I/R) injury limits patient recovery. Moreover, anticoagulation and antithrombotic drugs do not meet the clinical requirements. Studies have demonstrated close communication between the brain and gut microbiota in IS. Notoginsenoside R1 (NG-R1), a significant component of the total saponins from Panax notoginseng, has been demonstrated to be effective against cerebral I/R injury. Total saponins have been used to treat IS in Chinese pharmacopoeia. Furthermore, previous research has indicated that the absorption of NG-R1 was controlled by gut microbiota. STUDY DESIGN This study aimed to access the impact of NG-R1 treatment on neuroinflammation and investigate the microbiota-related mechanisms. RESULTS NG-R1 significantly reduced neuronal death and neuroinflammation in middle cerebral artery occlusion/reperfusion (MCAO/R) models. 16S rRNA sequencing revealed that NG-R1 treatment displayed the reversal of microbiota related with MCAO/R models. Additionally, NG-R1 administration attenuated intestinal inflammation, gut barrier destruction, and systemic inflammation. Furthermore, microbiota transplantation from NG-R1 exhibited a similar effect in the MCAO/R models. CONCLUSION In summary, NG-R1 treatment resulted in the restoration of the structure of the blood-brain barrier (BBB) and reduction in neuroinflammation via suppressing the stimulation of astrocytes and microglia in the cerebral ischemic area. Mechanistic research demonstrated that NG-R1 treatment suppressed the toll-like receptor 4/myeloid differentiation primary response 88/nuclear factor kappa B (TLR4/MyD88/NF-κB) signaling pathway in both the ischemic brain and colon. NG-R1 treatment enhanced microbiota dysbiosis by inhibiting the TLR4 signaling pathway to protect MCAO/R models. These findings elucidate the mechanisms by which NG-R1 improve stroke outcomes and provide some basis for Panax notoginseng saponins in clinical treatment.
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Affiliation(s)
- Shuxia Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Qiuyan Chen
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Meiqi Jin
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Jiahui Ren
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Xiao Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Zhixiu Zhang
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China
| | - Yun Luo
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China.
| | - Xiaobo Sun
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Institute of Medicinal Plant Development, Peking Union Medical College, and Chinese Academy of Medical Sciences, China; Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; Key Laboratory of Efficacy Evaluation of Chinese Medicine against Glycolipid Metabolic Disorders, State Administration of Traditional Chinese Medicine, Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, China.
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Xu L, Mi Y, Meng Q, Liu Y, Wang F, Zhang G, Liu Y, Chen G, Hou Y. Anti-inflammatory effects of quinolinyl analog of resveratrol targeting TLR4 in MCAO/R ischemic stroke rat model. Phytomedicine 2024; 128:155344. [PMID: 38493721 DOI: 10.1016/j.phymed.2024.155344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/25/2023] [Accepted: 01/07/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Among adults, stroke is the main causes of mortality and permanent disability. Neuroinflammation is one of the main causes of stoke-mediated neuronal death. Our previous study revealed that (E)-5-(2-(Quinolin-4-yl) vinyl) benzene-1, 3-diol (RV01), a quinolinyl analog of resveratrol, inhibits microglia-induced neuroinflammation and safeguards neurons from inflammatory harm. The preventive role of RV01 in ischemic stroke and its underlying cellular mechanisms and molecular targets remain poorly understood. PURPOSE To investigate whether RV01 alleviates ischemia-reperfusion (I/R) injury by inhibiting microglia-mediated neuroinflammation and determine the potential molecular mechanisms and targets by which RV01 inhibits the I/R-mediated microglia activation. METHODS Rat middle cerebral artery occlusion and reperfusion (MCAO/R) and BV-2 or primary microglial cells oxygen-glucose deprivation and reperfusion (OGD/R) models were established. The neurological behavior scores, 2, 3, 5-triphenyl tetrazolium chloride staining and immunofluorescence were used to detect the neuroprotective effect of RV01 in the MCAO/R rats. In addition, the mRNA expression levels of IL-6, TNF-α, and IL-1β were detected to reveal the antineuroinflammatory effect of RV01. Moreover, a western blot assay was performed to explore the protein expression changes in NF-κB-mediated neuroinflammation. Finally, we identified TLR4 as an RV01 target through molecular docking, drug sensitivity target stability analysis, cellular thermal shift analysis, and surface plasmon resonance techniques. RESULTS RV01 reduced the infarct volume and neurological deficits, increased the rotarod duration, and decreased the number of rightward deflections in the MCAO/R rats. RV01 inhibited the NF-κB signaling pathway in vitro and in vivo, as demonstrated by the reduction in the transcription factor p65-mediated expression of several inflammatory factors including IL-6, TNF-α, and IL-1β. Further studies showed that its protective effect was associated with targeting the TLR4 protein. Notably, the anti-inflammatory effect of RV01 was markedly reinforced by the TLR4 knockdown, but inhibited by the overexpression of TLR4. Results revealed that the conditioned medium derived from the RV01-treated BV-2 cells significantly decreased the OGD/R-mediated neuronal damage. CONCLUSION Our results are the first to reveal the protective effects of RV01 on cerebral ischemia, depending on its inhibitory effect on the NF-κB pathway by targeting TLR4. RV01 could be a potential protective agent in ischemic stroke treatment.
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Affiliation(s)
- Libin Xu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China
| | - Yan Mi
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China
| | - Qingqi Meng
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China
| | - Yeshu Liu
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China
| | - Feng Wang
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China
| | - Guijie Zhang
- College of Pharmacy, Guilin Medical University, Guilin, China
| | - Yueyang Liu
- Department of Pharmacology, Shenyang Key Laboratory of Vascular Biology, Science and Research Center, Shenyang Medical College, Shenyang, China.
| | - Guoliang Chen
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, China.
| | - Yue Hou
- Key Laboratory of Bioresource Research and Development of Liaoning Province, College of Life and Health Sciences, National Frontiers Science Center for Industrial Intelligence and Systems Optimization, Key Laboratory of Data Analytics and Optimization for Smart Industry, Ministry of Education, Northeastern University, Shenyang, China.
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Wu H, Yang M, Yan C, Liu M, Wang H, Zhang W. Tenascin C activates the toll‑like receptor 4/NF‑κB signaling pathway to promote the development of polycystic ovary syndrome. Mol Med Rep 2024; 29:106. [PMID: 38666538 DOI: 10.3892/mmr.2024.13230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/25/2024] [Indexed: 05/01/2024] Open
Abstract
Polycystic ovary syndrome (PCOS) is a globally prevalent gynecological disorder among women of childbearing age. The present study aimed to investigate the role of tenascin C (TNC) in PCOS and its potential mechanisms. Fasting blood glucose and serum insulin, the homeostasis model assessment of insulin resistance and the serum hormone levels were determined in PCOS rats. In addition, H&E staining was used for assessing pathology. In addition, the effects of TNC on oxidative stress and inflammation response in PCOS rat and cell models was assessed. Furthermore, the roles of TNC on KGN cell proliferation and apoptosis were determined employing EdU assay and flow cytometry. TLR4/NF‑κB pathway‑related proteins were measured using western blotting, immunofluorescence and immunohistochemistry. It was found that the mRNA and protein expression was upregulated in PCOS rats and in KGN cells induced by dihydrotestosterone (DHT). Knockdown of TNC relieved the pathological characteristics and the endocrine abnormalities of PCOS rats. Knockdown of TNC inhibited ovarian cell apoptosis, oxidative stress and inflammation in PCOS rats. Knockdown of TNC reversed the DHT‑induced reduction in cell proliferation and increase in apoptosis in KGN cells. Furthermore, knockdown of TNC alleviated oxidative stress and inflammatory responses induced by DHT in KGN cells. Additionally, knockdown of TNC inhibited the toll‑like receptor 4 (TLR4)/NF‑κB signaling pathway in PCOS rats and DHT‑treated KGN cells. In conclusion, knockdown of TNC could ameliorate PCOS in both rats and a cell model by inhibiting cell apoptosis, oxidative stress and inflammation via the suppression of the TLR4/NF‑κB signaling pathway.
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Affiliation(s)
- Han Wu
- Center for Reproductive Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| | - Mo Yang
- Department of Gynecology and Obstetrics, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| | - Cuiping Yan
- Department of Women's Health Care, Taian Daiyue District Maternal and Child Health Care, Taian, Shandong 271021, P.R. China
| | - Mengchen Liu
- Center for Reproductive Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| | - Haoran Wang
- Center for Reproductive Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
| | - Wenjuan Zhang
- Center for Reproductive Medicine, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong 271000, P.R. China
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Kuwar R, Zhang N, McQuiston A, Wen X, Sun D. Generation of induced pluripotent stem cells from rat fibroblasts and optimization of its differentiation into mature functional neurons. J Neurosci Methods 2024; 406:110114. [PMID: 38522633 PMCID: PMC11060920 DOI: 10.1016/j.jneumeth.2024.110114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/11/2024] [Accepted: 03/20/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Induced pluripotent stem cells (iPSCs) derived neural stem cells (NSCs) provide a potential for autologous neural transplantation therapy following neurological insults. Thus far, in preclinical studies the donor iPSCs-NSCs are mostly of human or mouse origin with concerns centering around graft rejection when applied to rat brain injury models. For better survival and integration of transplanted cells in the injured brain in rat models, use of rat-iPSC-NSCs and in combination with biomaterials is of advantageous. Herein, we report a detailed method in generating rat iPSCs with improved reprogramming efficiency and differentiation into neurons. NEW METHOD Rat fibroblasts were reprogrammed into iPSCs with polybrene and EF1α-STEMCCA-LoxP lentivirus vector. Pluripotency characterization, differentiation into neuronal linage cells were assessed with RT-qPCR, Western blotting, immunostaining and patch-clamp methods. Cells were cultured in a custom-designed integrin array system as well as in a hydrogel-based 3D condition. RESULTS We describe a thorough method for the generation of rat-iPSC-NSCs, and identify integrin αvβ8 as a substrate for the optimal growth of rat-iPSC-NSCs. Furthermore, with hydrogel as the supporting biomaterial in the 3-D culture, when combined with integrin αvβ8 binding peptide, it forms a conducive environment for optimal growth and differentiation of iPSC-NSCs into mature neurons. COMPARISON WITH EXISTING METHODS Published studies about rat-iPSC-NSCs are rare. This study provides a detailed protocol for the generation of rat iPSC-NSCs and optimal growth conditions for neuronal differentiation. Our method is useable for studies to assess the utility of rat iPSC-NSCs for neural transplantation in rat brain injury models.
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Affiliation(s)
- Ram Kuwar
- Department of Anatomy and Neurobiology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Ning Zhang
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Adam McQuiston
- Department of Anatomy and Neurobiology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xuejun Wen
- Department of Chemical and Life Science Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Dong Sun
- Department of Anatomy and Neurobiology, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298, USA.
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Huang Q, Liu JW, Dong HB, Wei ZJ, Liu JZ, Ren YT, Jiang X, Jiang B. Mesenteric adipose tissue B lymphocytes promote intestinal injury in severe acute pancreatitis by mediating enteric pyroptosis. Hepatobiliary Pancreat Dis Int 2024; 23:300-309. [PMID: 38057185 DOI: 10.1016/j.hbpd.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 11/17/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Visceral adipose tissue (VAT) has been linked to the severe acute pancreatitis (SAP) prognosis, although the underlying mechanism remains unclear. It has been reported that pyroptosis worsens SAP. The present study aimed to verify whether mesenteric adipose tissue (MAT, a component of VAT) can cause secondary intestinal injury through the pyroptotic pathway. METHODS Thirty-six male Sprague Dawley (SD) rats were divided into six different groups. Twelve rats were randomly divided into the SAP and control groups. We monitored the changes of MAT and B lymphocytes infiltration in MAT of SAP rats. Twelve SAP rats were injected with MAT B lymphocytes or phosphate buffer solution (PBS). The remaining twelve SAP rats were first injected with MAT B lymphocytes, and then with MCC950 (NLRP3 inhibitor) or PBS. We collected blood and tissue samples from pancreas, gut and MAT for analysis. RESULTS Compared to the control rats, the SAP group showed inflammation in MAT, including higher expression of tumor necrosis factor (TNF-α) and interleukin-6 (IL-6), lower expression of IL-10, and histological changes. Flow cytometry analysis revealed B lymphocytes infiltration in MAT but not T lymphocytes and macrophages. The SAP rats also exhibited intestinal injury, characterized by lower expression of zonula occludens-1 (ZO-1) and occludin, higher levels of lipopolysaccharide and diamine oxidase, and pathological changes. The expression of NLRP3 and n-GSDMD, which are responsible for pyroptosis, was increased in the intestine of SAP rats. The injection of MAT B lymphocytes into SAP rats exacerbated the inflammation in MAT. The upregulation of pyroptosis reduced tight junction in the intestine, which contributed to the SAP progression, including higher inflammatory indicators and worse histological changes. The administration of MCC950 to SAP + MAT B rats downregulated pyroptosis, which subsequently improved the intestinal barrier and ameliorated inflammatory response of SAP. CONCLUSIONS In SAP, MAT B lymphocytes aggravated local inflammation, and promoted the injury to the intestine through the enteric pyroptotic pathway.
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Affiliation(s)
- Qing Huang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Jia-Wen Liu
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Hai-Bin Dong
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Zheng-Jie Wei
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Jin-Zhe Liu
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yu-Tang Ren
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Xuan Jiang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China.
| | - Bo Jiang
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
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Wei Y, Kang J, Ma Z, Liao T, Wu P, Wang P, Huang Z. Protective effects of emodin on subchondral bone and articular cartilage in osteoporotic osteoarthritis rats: A preclinical study. Exp Gerontol 2024; 190:112413. [PMID: 38570055 DOI: 10.1016/j.exger.2024.112413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/17/2024] [Accepted: 03/30/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Osteoporotic osteoarthritis (OP-OA) is a severe pathological form of OA, urgently requiring precise management strategies and more efficient interventions. Emodin (Emo), an effective ingredient found in the traditional Chinese medicine rhubarb, has been dEmonstrated to promote osteogenesis and inhibit extracellular matrix degradation. In this study, we aimed to investigate the interventional effects of Emo on the subchondral bone and cartilage of the knee joints in OP-OA model rats. METHODS Thirty-two SD rats were randomly and equally divided into sham, OP-OA, Emo low-dose, and Emo high-dose groups. Micro-CT scanning was conducted to examine the bone microstructure of the rat knee joints. H&E and Safranin O and Fast Green staining (SO&FG) were performed for the pathomorphological evaluation of the rat cartilage tissues. ELISA was used to estimate the rat serum expression levels of inflammatory factors, including interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). Additionally, the CCK-8 assay was utilized for determining the viability of Emo-treated BMSCs. Western blot and real-time PCR analyses were also employed to measure the bone formation indexes and cartilage synthesis and decomposition indexes. Lastly, the osteogenic and chondrogenic differentiation efficiency of the BMSCs was investigated via Alizarin Red and Alcian Blue staining. RESULTS Emo intervention alleviated the bone microstructural disruption of the subchondral bone and articular cartilage in the OP-OA rats and up-regulated the expression of bone and cartilage anabolic metabolism indicators, decreased the expression of cartilage catabolism indicators, and diminished the expression of inflammatory factors in the rat serum (P<0.05). Furthermore, Emo reversed the decline in the osteogenic and chondrogenic differentiation ability of the BMSCs (P<0.05). CONCLUSION Emo intervention mitigates bone loss and cartilage damage in OP-OA rats and promotes the osteogenic and chondrogenic differentiation of BMSCs.
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Affiliation(s)
- Yibao Wei
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China; Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, China
| | - Junfeng Kang
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China; Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, China; Department of Orthopedics, Affiliated Hospital of Shanxi University of Chinese Medicine, China
| | - Zhenyuan Ma
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China; Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, China
| | - Taiyang Liao
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China; Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, China
| | - Peng Wu
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China
| | - Peimin Wang
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China.
| | - Zhengquan Huang
- Department of Orthopedics, Affiliated Hospital of Nanjing University of Chinese Medicine, China; Jiangsu Province Hospital of Chinese Medicine, China.
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Zhu AQ, Luo N, Zhou XT, Yuan M, Zhang CM, Pan TL, Li KP. Transcriptomic insights into the lipotoxicity of high-fat high-fructose diet in rat and mouse. J Nutr Biochem 2024; 128:109626. [PMID: 38527560 DOI: 10.1016/j.jnutbio.2024.109626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 02/23/2024] [Accepted: 03/21/2024] [Indexed: 03/27/2024]
Abstract
Along with the increasing prevalence of obesity worldwide, the deleterious effects of high-calorie diet are gradually recognized through more and more epidemiological studies. However, the concealed and chronic causality whitewashes its unhealthy character. Given an ingenious mechanism orchestrates the metabolic adaptation to high-fat high-fructose (HFF) diet and connive its lipotoxicity, in this study, an experimental rat/mouse model of obesity was induced and a comparative transcriptomic analysis was performed to probe the mystery. Our results demonstrated that HFF diet consumption altered the transcriptomic pattern as well as different high-calorie diet fed rat/mouse manifested distinct hepatic transcriptome. Validation with RT-qPCR and Western blotting confirmed that SREBP1-FASN involved in de novo lipogenesis partly mediated metabolic self-adaption. Moreover, hepatic ACSL1-CPT1A-CPT2 pathway involved in fatty acids β-oxidation, played a key role in the metabolic adaption to HFF. Collectively, our findings enrich the knowledge of the chronic adaptation mechanisms and also shed light on future investigations. Meanwhile, our results also suggest that efforts to restore the fatty acids metabolic fate could be a promising avenue to fight against obesity and associated steatosis and insulin resistance challenged by HFF diet.
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Affiliation(s)
- An-Qi Zhu
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Ning Luo
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiao-Ting Zhou
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Min Yuan
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chu-Mei Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Tian-Ling Pan
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China
| | - Kun-Ping Li
- Institute of Chinese Medicinal Sciences, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, China.; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangzhou, China.
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Alosaimi M, Abd-Elhakim YM, Mohamed AAR, Metwally MMM, Khamis T, Alansari WS, Eskandrani AA, Essawi WM, Awad MM, El-Shaer RAA, Ibrahim S, Nassan MA, Metwally AS. Green Synthesized Zinc Oxide Nanoparticles Attenuate Acrylamide-Induced Cardiac Injury via Controlling Endoplasmic Reticulum Stress-Associated Apoptosis Through ATF3/CHOP/BCL2 Signaling in Rats. Biol Trace Elem Res 2024; 202:2657-2671. [PMID: 37752374 DOI: 10.1007/s12011-023-03855-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023]
Abstract
Due to their distinctive properties, several eco-friendly metal oxide nanoparticles were assessed for their possible cardioprotective properties. Acrylamide (ACD), a pervasive chemical in food and the environment, has been linked to cardiac toxicity. Therefore, this study examined the probable protective effect of green synthesized zinc oxide nanoparticles (GS-ZNPs) against ACD-oral exposure-induced cardiac damage in rats. For 60 days, 40 male Sprague-Dawley rats were separated into four sets that orally administered distilled water, 10-mg GS-ZNP/kg b.w., 20-mg ACD/kg b.w., or GS-ZNP + ACD. Then, cardiac damage indicators comprising CPK, CK-MB, cTn, and LDH were assessed. Besides, cardiac tissues' architecture, oxidative stress indicators, and Zn content were evaluated. The mRNA expression of the ERS-related genes, including ATF3, ATF4, ATF6, XBP-1, CHOP, JNKs, and BiP, were determined. Moreover, ERS-dependent anti-apoptotic (BCL-2) and apoptotic (Caspase-3 and BAX) genes mRNA expression were analyzed. The results showed that GS-ZNP significantly alleviated the increased ACD-induced serum cardiac damage indicators, MDA tissue content, and histopathological changes. Furthermore, the ACD-induced reduction of antioxidants and Zn heart contents were significantly reestablished by GS-ZNP. Furthermore, the ACD-induced upregulation of the ERS-encoding genes and apoptotic genes was reversed by GS-ZNP. Besides, the ACD-induced BCL-2 downregulation was counteracted by GS-ZNP. Overall, GS-ZNP could be a biologically potent compound to alleviate ACD's cardiotoxic effects, possibly by controlling the ERS and apoptosis-related genes and antioxidant activity.
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Affiliation(s)
- Manal Alosaimi
- Department of Basic Health Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Yasmina M Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt.
| | - Amany Abdel-Rahman Mohamed
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt.
| | - Mohamed M M Metwally
- Department of Pathology and Clinical pathology, Faculty of Veterinary Medicine, King Salman International University, Ras sudr, Egypt
- Pathology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Tarek Khamis
- Pharmacology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
- Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt
| | - Wafa S Alansari
- Biochemistry Department, Faculty of Science, University of Jeddah, 21577, Jeddah, Saudi Arabia
| | - Areej A Eskandrani
- Chemistry Department, College of Science, Taibah University, Medina, 30002, Saudi Arabia
| | - Walaa M Essawi
- Department of Theriogenology, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
| | - Marwa M Awad
- Physiology Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Rehab A A El-Shaer
- Physiology Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Sarah Ibrahim
- Human Anatomy and Embryology Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Mohamed A Nassan
- Department of Clinical Laboratory Sciences, Turabah University College, Taif University, PO Box 11099, Taif, 21944, Saudi Arabia
| | - Aya Sh Metwally
- Department of Pharmacology, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt
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Wang L, Lu Y, Liu J, Wang S, Fei Z, Zhang K, Zhang D, Jin X. Gegen Qinlian tablets delay Alzheimer's disease progression via inhibiting glial neuroinflammation and remodeling gut microbiota homeostasis. Phytomedicine 2024; 128:155394. [PMID: 38569294 DOI: 10.1016/j.phymed.2024.155394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/11/2024] [Accepted: 01/24/2024] [Indexed: 04/05/2024]
Abstract
BACKGROUND Current therapeutic agents for AD have limited efficacy and often induce undesirable side effects. Gegen Qinlian tablets (GGQLT) are a well-known clearingheat formula used in clinical treatment of inflammatory diseases. Based on traditional Chinese medicine (TCM) theory, the strategy of clearing-heat is then compatible with the treatment of AD. However, it remains unknown whether GGQLT can exert neuroprotective effects and alleviate neuroinflammation in AD. PURPOSE This study aimed to evaluate the anti-AD effects of GGQLT and to decipher its intricate mechanism using integrative analyses of network pharmacology, transcriptomic RNA sequencing, and gut microbiota. METHODS The ingredients of GGQLT were analyzed using HPLC-ESI-Q/TOF-MS. The AD model was established by bilateral injection of Aβ1-42 into the intracerebroventricular space of rats. The Morris water maze was used to evaluate the cognitive function of the AD rats. The long-term toxicity of GGQLT in rats was assessed by monitoring their body weights and pathological alterations in the liver and kidney. Reactive astrocytes and microglia were assessed by immunohistochemistry by labeling GFAP and Iba-1. The levels of inflammatory cytokines in the hippocampus were evaluated using ELISA kits, RT-PCR, and Western blot, respectively. The potential anti-AD mechanism was predicted by analyses of RNA-sequencing and network pharmacology. Western blot and immunohistochemistry were utilized to detect the phosphorylation levels of IκBα, NF-κB p65, p38, ERK and JNK. The richness and composition of gut bacterial and fungal microflora were investigated via 16S rRNA and ITS sequencing. RESULTS Typical ingredients of GGQLT were identified using HPLC-ESI-Q/TOF-MS. GGQLT significantly improved the cognitive function of AD rats by suppressing the activation of microglia and astrocytes, improving glial morphology, and reducing the neuroinflammatory reactions in the hippocampus. RNA-sequencing, network and experimental pharmacological studies demonstrated that GGQLT inhibited the activation of NF-κB/MAPK signaling pathways in the hippocampus. GGQLT could also restore abnormal gut bacterial and fungal homeostasis and no longer-term toxicity of GGQLT was observed. CONCLUSIONS Our findings, for the first time, demonstrate GGQLT exhibit anti-AD effects and is worthy of further exploration and development.
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Affiliation(s)
- Lin Wang
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Ye Lu
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Jiamei Liu
- Department of Pathology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Siyi Wang
- The 1st Clinical Department, China Medical University, Shenyang 110122, China
| | - Zepeng Fei
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Kaiwen Zhang
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China
| | - Dongfang Zhang
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China.
| | - Xin Jin
- School of Pharmacy, China Medical University, No.77 of Puhe Road, Shenyang North New Area, Shenyang 110122, China.
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Yang X, Wu X. The impact of sestrin2 on reactive oxygen species in diabetic retinopathy. Cell Biochem Funct 2024; 42:e4024. [PMID: 38666564 DOI: 10.1002/cbf.4024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/29/2024] [Accepted: 04/15/2024] [Indexed: 05/01/2024]
Abstract
Diabetic retinopathy (DR) is a significant complication of diabetes that often leads to blindness, impacting Müller cells, the primary retinal macroglia involved in DR pathogenesis. Reactive oxygen species (ROS) play a crucial role in the development of DR. The objective of this study was to investigate the involvement of sestrin2 in DR using a high-glucose (HG)-induced Müller cell model and assessing cell proliferation with 5-ethynyl-2-deoxyuridine (EdU) labeling. Following this, sestrin2 was upregulated in Müller cells to investigate its effects on ROS, tube formation, and inflammation both in vitro and in vivo, as well as its interaction with the nuclear factor erythroid2-related factor 2 (Nrf2) signaling pathway. The findings demonstrated a gradual increase in the number of EdU-positive cells over time, with a subsequent decrease after 72 h of exposure to high glucose levels. Additionally, the expression of sestrin2 exhibited a progressive increase over time, followed by a decrease at 72 h. The rh-sestrin2 treatment suppressed the injury of Müller cells, decreased ROS level, and inhibited the tube formation. Rh-sestrin2 treatment enhanced the expression of sestrin2, Nrf2, heme oxygenase-1 (HO-1), and glutamine synthetase (GS); however, the ML385 treatment reversed the protective effect of rh-sestrin2. Finally, we evaluated the effect of sestrin2 in a DR rat model. Sestrin2 overexpression treatment improved the pathological injury of retina and attenuated the oxidative damage and inflammatory reaction. Our results highlighted the inhibitory effect of sestrin2 in the damage of retina, thus presenting a novel therapeutic sight for DR.
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Affiliation(s)
- Xueli Yang
- Department of Ophthalmology, YanTaiShan Hospital, Yantai, China
| | - Xiaoli Wu
- Department of Ophthalmology, Shandong Rongjun General Hospital, Jinan, China
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Yang J, Zhou Z, Ding X, He R, Li A, Wei Y, Wang M, Peng Z, Jiang Z, Zhao D, Li X, Leng X, Dong H. Gubi Zhitong formula alleviates osteoarthritis in vitro and in vivo via regulating BNIP3L-mediated mitophagy. Phytomedicine 2024; 128:155279. [PMID: 38581801 DOI: 10.1016/j.phymed.2023.155279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/29/2023] [Accepted: 12/10/2023] [Indexed: 04/08/2024]
Abstract
BACKGROUND Osteoarthritis (OA) is characterized by degeneration of articular cartilage, leading to joint pain and dysfunction. Gubi Zhitong formula (GBZTF), a traditional Chinese medicine formula, has been used in the clinical treatment of OA for decades, demonstrating definite efficacy. However, its mechanism of action remains unclear, hindering its further application. METHODS The ingredients of GBZTF were analyzed and performed with liquid chromatography-mass spectrometry (LC-MS). 6 weeks old SD rats were underwent running exercise (25 m/min, 80 min, 0°) to construct OA model with cartilage wear and tear. It was estimated by Micro-CT, Gait Analysis, Histological Stain. RNA-seq technology was performed with OA Rats' cartilage, and primary chondrocytes induced by IL-1β (mimics OA chondrocytes) were utilized to evaluated and investigated the mechanism of how GBZTF protected OA cartilage from being damaged with some functional experiments. RESULTS A total of 1006 compounds were identified under positive and negative ion modes by LC-MS. Then, we assessed the function of GBZTF through in vitro and vivo. It was found GBZTF could significantly up-regulate OA rats' limb coordination and weight-bearing capacity, and reduce the surface and sub-chondral bone erosions of OA joints, and protect cartilage from being destroyed by inflammatory factors (iNOS, IL-6, IL-1β, TNF- α, MMP13, ADAMTS5), and promote OA chondrocytes proliferation and increase the S phage of cell cycle. In terms of mechanism, RNA-seq analysis of cartilage tissues revealed 1,778 and 3,824 differentially expressed genes (DEGs) in model vs control group and GBZTF vs model group, respectively. The mitophagy pathway was most significantly enriched in these DEGs. Further results of subunits of OA chondrocytes confirmed that GBZTF could alleviate OA-associated inflammation and cartilage damage through modulation BCL2 interacting protein 3-like (BNIP3L)-mediated mitophagy. CONCLUSION The therapeutic effectiveness of GBZTF on OA were first time verified in vivo and vitro through functional experiments and RNA-seq, which provides convincing evidence to support the molecular mechanisms of GBZTF as a promising therapeutic decoction for OA.
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Affiliation(s)
- Jie Yang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Zhenwei Zhou
- Northeast Asia Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Xiaolei Ding
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Rong He
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Ailin Li
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Yuchi Wei
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Mingyue Wang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Zeyu Peng
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Zhanliang Jiang
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Daqing Zhao
- Northeast Asia Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Xiangyan Li
- Northeast Asia Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China
| | - Xiangyang Leng
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China; Northeast Asia Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China.
| | - Haisi Dong
- Northeast Asia Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, Jilin Province, China.
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Bao Y, Zhu L, Wang Y, Liu J, Liu Z, Li Z, Zhou A, Wu H. Gualou-Xiebai herb pair and its active ingredients act against atherosclerosis by suppressing VSMC-derived foam cell formation via regulating P2RY12-mediated lipophagy. Phytomedicine 2024; 128:155341. [PMID: 38518636 DOI: 10.1016/j.phymed.2024.155341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/28/2023] [Accepted: 01/06/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Atherosclerosis (AS) is a chronic disease characterized by lipid accumulation in the aortic wall and the formation of foam cells overloaded with large lipids inclusions. Currently, Western medicine is primarily used to improve lipid metabolism disorders and reduce inflammatory reactions to delay AS progression, but these medicines come with serious side effects and drug resistance. Gualou-Xiebai (GLXB) is a renowned herb pair that has been proven effective against AS. However, the potential molecular mechanism through which GLXB exerts the anti-atherosclerotic effects of increasing lipophagy in vascular smooth muscle cells (VSMCs) remains unknown. PURPOSE This study aims to explore the role of lipophagy and the therapeutic mechanism of GLXB in AS. METHODS UPLC-Q-TOF-MS for the determination of the main components of GLXB-containing serum. An AS mouse model was established by feeding a high-fat diet (HFD) to ApoE-/- mice for 12 weeks. Ultrasonography monitoring was used to confirm the successful establishment of the AS model. Plaque areas and lipid deposition were evaluated using HE staining and aorta imagingafter GLXB treatment. Immunofluorescence staining and Western blotting were utilized to observe the P2RY12 and lipophagy levels in AS mice. VSMCs were stimulated with oxidized low-density lipoprotein (ox-LDL) to induce foam cell formation. The degree of lipophagy and the related molecular mechanisms were assessed after treating the VSMCs with GLXB-containing serum or si-P2RY12 transfection. The active components of GLXB-containing serum that act on P2RY12 were screened and verified by molecular docking and dual-luciferase reporter assays. RESULTS Seventeen components of GLXB were identified in rat serum by UPLC-Q-TOF-MS. GLXB significantly reduced lipid deposition in HFD-fed ApoE-/- mice and ox-LDL-induced VSMCs. GLXB strikingly increased lipophagy levels by downregulating P2RY12, p62, and plin2, upregulating LC3Ⅱ protein expression, and increasing the number of autophagosomes. Notably, the lipophagy inhibitor CQ and the P2RY12 receptor agonist ADPβ abolished the GLXB-induced increase in lipophagy. Last, we confirmed that albiflorin, apigenin, luteolin, kaempferol, 7,8-dihydroxyflavone, and hesperetin from GLXB significantly inhibited P2RY12. CONCLUSION GLXB activates lipophagy and inhibits lipid accumulation-associated VSMC-derived foam cell formation through suppressing P2RY12 activation, resulting in anti-atherosclerotic effects. The GLXB components albiflorin, apigenin, luteolin, kaempferol, 7,8-dihydroxyflavone, and hesperetin are the potential active effectors against P2RY12.
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MESH Headings
- Animals
- Atherosclerosis/drug therapy
- Foam Cells/drug effects
- Foam Cells/metabolism
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Male
- Mice
- Drugs, Chinese Herbal/pharmacology
- Receptors, Purinergic P2Y12/metabolism
- Diet, High-Fat
- Mice, Inbred C57BL
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Rats
- Disease Models, Animal
- Autophagy/drug effects
- Rats, Sprague-Dawley
- Lipid Metabolism/drug effects
- Aorta/drug effects
- Lipoproteins, LDL/metabolism
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Affiliation(s)
- Youli Bao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Li Zhu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yuting Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jiahui Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zijian Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zhenglong Li
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China
| | - An Zhou
- The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei 230012, China.
| | - Hongfei Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; The Experimental Research Center, Anhui University of Chinese Medicine, Hefei 230038, China.
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Shi Y, Du Q, Li Z, Xue L, Jia Q, Zheng T, Liu J, Ren R, Sun Z. Multiomics profiling of the therapeutic effect of Dan-deng-tong-nao capsule on cerebral ischemia-reperfusion injury. Phytomedicine 2024; 128:155335. [PMID: 38518648 DOI: 10.1016/j.phymed.2023.155335] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 12/20/2023] [Accepted: 12/30/2023] [Indexed: 03/24/2024]
Abstract
BACKGROUND Stroke is a complex physiological process associated with intestinal flora dysbiosis and metabolic disorders. Dan-deng-tong-nao capsule (DDTN) is a traditional Chinese medicine used clinically to treat cerebral ischemia-reperfusion injury (CIRI) for many years. However, little is known about the effects of DDTN in the treatment of CIRI from the perspective of gut microbiota and metabolites. PURPOSE This study aimed to investigate the regulatory roles of DDTN in endogenous metabolism and gut microbiota in CIRI rats, thus providing a basis for clinical rational drug use and discovering natural products with potential physiological activities in DDTN for the treatment of CIRI. METHODS The chemical composition of DDTN in vitro and in vivo was investigated using ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLCHRMS), followed by target prediction using reverse molecular docking. Secondly, a biological evaluation of DDTN ameliorating neural damage in CIRI was performed at the whole animal level. Then, an integrated omics approach based on UHPLCHRMS and 16S rRNA sequencing was proposed to reveal the anti-CIRI effect and possible mechanism of DDTN. Finally, exploring the intrinsic link between changes in metabolite profiles, changes in the intestinal flora, and targets of components to reveal DDTN for the treatment of CIRI. RESULTS A total of 112 chemical components of DDTN were identified in vitro and 10 absorbed constituents in vivo. The efficacy of DDTN in the treatment of CIRI was confirmed by alleviating cerebral infarction and neurological deficits. After the DDTN intervention, 21 and 26 metabolites were significantly altered in plasma and fecal, respectively. Based on the fecal microbiome, a total of 36 genera were enriched among the different groups. Finally, the results of the network integration analysis showed that the 10 potential active ingredients of DDTN could mediate the differential expression of 24 metabolites and 6 gut microbes by targeting 25 target proteins. CONCLUSION This study was the first to outline the landscapes of metabolites as well as gut microbiota regulated by DDTN in CIRI rats using multi-omics data, and comprehensively revealed the systematic relationships among ingredients, targets, metabolites, and gut microbiota, thus providing new perspectives on the mechanism of DDTN in the treatment of CIRI.
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Affiliation(s)
- Yingying Shi
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Qiuzheng Du
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Zhuolun Li
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Lianping Xue
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Qingquan Jia
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Tianyuan Zheng
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Jiyun Liu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian Province, 361102, PR China
| | - Ruobing Ren
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China
| | - Zhi Sun
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, PR China; Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, Henan Province, 450052, PR China.
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Esfahani SK, Dehghani S, Hosseinzadeh H, Abnous K, Taghdisi SM, Ramezani M, Alibolandi M. An exosomal approach for oral delivery of resveratrol: Implications for inflammatory bowel disease treatment in rat model. Life Sci 2024; 346:122638. [PMID: 38614294 DOI: 10.1016/j.lfs.2024.122638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/24/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
AIMS Resveratrol (RSV) is a polyphenolic substance found in numerous natural products. Despite the wide range of therapeutic activities, including antioxidant and anti-inflammatory effects, the poor pharmacokinetic characteristics decrease the RSV bioavailability following oral administration. Milk-derived exosomes (MEXOs), as a class of natural nanocarriers, are promising candidates for oral drug delivery approaches. MAIN METHODS The current study developed RSV-loaded MEXOs to enhance the RSV oral bioavailability, introducing a suitable exosomal formulation for suppressing colon inflammation in acetic acid-induced rat models. KEY FINDINGS The results showed a remarkable encapsulation efficiency of 83.33 %. The in vitro release profile demonstrated a good retaining capability in acidic conditions (pH 1.2) and a considerable release in a simulated duodenal environment (pH 6.8). According to the permeability study, encapsulation of RSV improved its transportation across the Caco-2 monolayer. Moreover, the in vivo and histological analysis results proved that the RSV-MEXOs formulation successfully alleviates the inflammation in colitis rat models and effectively relieves the colitis. SIGNIFICANCE Our findings suggest that MEXOs should be of great attention as promising oral drug delivery vehicles for further clinical evaluations.
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Affiliation(s)
- Shaghayegh Kazemi Esfahani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sadegh Dehghani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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85
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Liu H, Li C, Zhang X, Chen H, Zhang Q, Zeng Y, Zheng S, Zou J, Zhao Y, Zheng X, Huang G, Zeng Q. BMSC-Exosomes attenuate ALP dysfunction by restoring lysosomal function via the mTOR/TFEB Axis to reduce cerebral ischemia-reperfusion injury. Exp Neurol 2024; 376:114726. [PMID: 38403042 DOI: 10.1016/j.expneurol.2024.114726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 01/02/2024] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND The complex pathophysiological changes following cerebral ischemia-reperfusion injury (CIRI) include the accumulation of defective proteins and damaged organelles, which cause massive neuron demise. To preserve cellular homeostasis, the autophagy-lysosomal pathway (ALP) is crucial for neurons to dispose of these substances. Many studies have shown that bone mesenchymal stem cell exosomes (BMSC-Exos) can reduce CIRI. However, the specific mechanisms have not been well elucidated, a fact that limits its widespread clinical use. This study aimed to clarify whether BMSC-Exos could attenuate ALP dysfunction by restoring lysosomal function after CIRI via inhibiting mTOR and then activating TFEB nucleus translocation. METHODS In this study, Flow cytometry, Nanoparticle tracking analysis (NTA), Transmission electron microscope (TEM), and Western blot were used to identify the BMSCs and BMSC-Exos used in this experiment as conforming to the requirements. In vivo experiments, SD rats were modeled with temporary middle cerebral artery occlusion (tMCAO), and BMSC-Exos was injected into the tail vein 2 h after modeling. Triphenyl tetrazolium chloride (TTC) staining, modified neurological severity scores (mNSS), corner turn test, and rotating rod test were used to detect neurological deficits in rats after BMSC-Exos intervention. Western blot and Immunofluorescence were used to detect ALP, transcription factor EB(TFEB) nucleus translocation, and mammalian target of rapamycin (mTOR) change at different time points after modeling and after BMSC-Exos intervention. In vitro experiments, pheochromocytoma cells (PC12) cells were subjected to oxygen-glucose deprivation and reperfusion (OGD/R) modeling to mimic CIRI, and were respectively intervened with BMSC-Exos, BMSC-Exos + MHY 1485 (the mTOR agonist), Rapamycin (the mTOR inhibitor). CCK8, Western blot, and Immunofluorescence were used to detect PC12 cell survival, TFEB nucleus translocation, and cathepsin B(CTSB) Immunofluorescence intensity. RESULTS We found that ALP dysfunction occurred 72 h after tMCAO, and BMSC-Exos can attenuate ALP dysfunction by restoring lysosomal function. Next, we examined TFEB nucleus translocation and the expression of mTOR, a key regulator of translocation. We found that BMSC-Exos could inhibit mTOR and activate TFEB nucleus translocation. Additional in vitro tests revealed that BMSC-Exos could increase PC12 cell survival after OGD/R, activating TFEB nucleus translocation and enhancing the fluorescence intensity of CTSB, which in turn could be reversed by the mTOR agonist, MHY1485. This effect was similar to another mTOR inhibitor, Rapamycin. CONCLUSION BMSC-Exos could attenuate ALP dysfunction by restoring lysosomal function after CIRI by inhibiting mTOR and then promoting TFEB nucleus translocation.
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Affiliation(s)
- Haining Liu
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Chen Li
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China; Department of Rehabilitation Medicine, Hunan Provincial People's Hospital, Hunan Normal University, Changsha 410016, China
| | - Xiaofeng Zhang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Hui Chen
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Qi Zhang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Yuting Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Shuqi Zheng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Jihua Zou
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China; The Hong Kong Polytechnic University, Faculty of Health and Social Sciences, Hong Kong
| | - Yijin Zhao
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China
| | - Xiaoyan Zheng
- School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China.
| | - Guozhi Huang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China.
| | - Qing Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China; School of Rehabilitation Sciences, Southern Medical University, Guangdong 510515, China.
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86
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Malloy DC, Côté MP. Multi-session transcutaneous spinal cord stimulation prevents chloride homeostasis imbalance and the development of hyperreflexia after spinal cord injury in rat. Exp Neurol 2024; 376:114754. [PMID: 38493983 DOI: 10.1016/j.expneurol.2024.114754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Spasticity is a complex and multidimensional disorder that impacts nearly 75% of individuals with spinal cord injury (SCI) and currently lacks adequate treatment options. This sensorimotor condition is burdensome as hyperexcitability of reflex pathways result in exacerbated reflex responses, co-contractions of antagonistic muscles, and involuntary movements. Transcutaneous spinal cord stimulation (tSCS) has become a popular tool in the human SCI research field. The likeliness for this intervention to be successful as a noninvasive anti-spastic therapy after SCI is suggested by a mild and transitory improvement in spastic symptoms following a single stimulation session, but it remains to be determined if repeated tSCS over the course of weeks can produce more profound effects. Despite its popularity, the neuroplasticity induced by tSCS also remains widely unexplored, particularly due to the lack of suitable animal models to investigate this intervention. Thus, the basis of this work was to use tSCS over multiple sessions (multi-session tSCS) in a rat model to target spasticity after SCI and identify the long-term physiological improvements and anatomical neuroplasticity occurring in the spinal cord. Here, we show that multi-session tSCS in rats with an incomplete (severe T9 contusion) SCI (1) decreases hyperreflexia, (2) increases the low frequency-dependent modulation of the H-reflex, (3) prevents potassium-chloride cotransporter isoform 2 (KCC2) membrane downregulation in lumbar motoneurons, and (4) generally augments motor output, i.e., EMG amplitude in response to single pulses of tSCS, particularly in extensor muscles. Together, this work displays that multi-session tSCS can target and diminish spasticity after SCI as an alternative to pharmacological interventions and begins to highlight the underlying neuroplasticity contributing to its success in improving functional recovery.
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Affiliation(s)
- Dillon C Malloy
- Marion Murray Spinal Cord Research Center, Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States of America.
| | - Marie-Pascale Côté
- Marion Murray Spinal Cord Research Center, Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States of America.
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Liang Y, Wang F, Song Y, Tang C, Wu R, Feng Q, Han M, Li Y, Chen W, Zhang J, Jiang M, Wang Z. LC-MS based metabonomics study on protective mechanism of ESWW in cerebral ischemia via CYTC/Apaf-1/NDRG4 pathway. Phytomedicine 2024; 128:155543. [PMID: 38657364 DOI: 10.1016/j.phymed.2024.155543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 03/07/2024] [Accepted: 03/16/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Ershiwuwei Zhenzhu pills was originally recorded in the Tibetan medical book Si Bu Yi Dian in the 8th century AD and is now included in the Pharmacopoeia of the People's Republic of China (2020). The pills can calm the nerves and open the mind as well as treat cerebral ischemia reperfusion injury, stroke, hemiplegia. However, its quality standards have not yet been established, and the therapeutic effect on cerebral ischemia by regulating the mitochondrial apoptosis pathway has not been elucidated. STUDY DESIGN AND METHODS LC-MS was used to establish quality standards for Ershiwuwei Zhenzhu pills. Metabonomics, molecular docking, neuroethology, cerebral infarction ratio, pathological detection of diencephalon, cortex, and hippocampus, and molecular biology techniques were used to reveal the mechanism of the pills in regulating the mitochondrial apoptosis pathway to treat cerebral ischemia. RESULTS The contents of 20 chemical components in Ershiwuwei Zhenzhu pills from 12 batches and 8 manufacturers was determined for the first time. Eleven differential metabolites and three metabolic pathways, namely, fructose and mannose metabolism, glycerophospholipid metabolism, and purine metabolism, were identified by metabonomics. The pills improved the neuroethology abnormalities of MCAO rats and the pathological damage in the diencephalon and decreased the ratio of cerebral infarction. It also significantly reduced the mRNA expression of AIF, Apaf-1, cleared caspase8, CytC, and P53 mRNA in the brain tissue and the protein expression of Apaf-1 and CYTC and increased the protein expression of NDRG4. CONCLUSION In vitro quantitative analysis of the in vitro chemical components of Ershiwuwei Zhenzhu pills has laid the foundation for improving its quality control. The potential mechanism of the pills in treating cerebral ischemia may be related to the Apaf-1/CYTC/NDRG4 apoptosis pathway. This work provides guidance for clinical drug use for patients.
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Affiliation(s)
- Yan Liang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fangjie Wang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yinglian Song
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ce Tang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China; College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Ruixia Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiaoqiao Feng
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mengtian Han
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wanyue Chen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingwen Zhang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China; College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China
| | - Miao Jiang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China; State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Zhang Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China; College of Ethnomedicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 611137, China.
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Zhao M, Xie Y, Xu X, Zhang Z, Shen C, Chen X, Zhu B, Yang L, Zhou B. Reproductive and transgenerational toxicity of bisphenol S exposure in pregnant rats: Insights into hormonal imbalance and steroid biosynthesis pathway disruption. Sci Total Environ 2024; 927:172379. [PMID: 38614345 DOI: 10.1016/j.scitotenv.2024.172379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/23/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
Bisphenol S (BPS) is an alternative chemical to bisphenol A commonly used in food packaging materials. It raises concerns due to potential adverse effects on human health. However, limited evidence exists regarding reproductive toxicity from BPS exposure, and the mechanism of associated transgenerational toxicity remains unclear. In this study, pregnant SD rats were exposed to two different doses of BPS (0.05 or 20 mg/kg) from GD6 to PND21. The objective was to investigate reproductive and transmissible toxicity induced by BPS, explore endocrine effects, and uncover potential underlying mechanisms in rats. Perinatal exposure to BPS in the F0 generation significantly decreased the rate of body weight, ovarian organ coefficient, and growth and development of the F1 generation. Notably, these changes included abnormal increases in body weight and length, estrous cycle disruption, and embryonic dysplasia in F1. 4D-DIA proteomic and PRM analyses revealed that exposure to 20 mg/kg group significantly altered the expression of proteins, such as Lhcgr and Akr1c3, within the steroid biosynthetic pathway. This led to elevated levels of FSH and LH in the blood. The hypothalamic-pituitary-ovarian (HPO) axis, responsible for promoting fertility through the cyclic secretion of gonadotropins and steroid hormones, was affected. RT-qPCR and Western blot results demonstrated that the expression of GnRH in the hypothalamus was decreased, the GnRHR in the pituitary gland was decreased, and the expression of FSHβ and LHβ in the pituitary gland was increased. Overall, BPS exposure disrupts the HPO axis, hormone levels, and steroid biosynthesis in the ovaries, affecting offspring development and fertility. This study provides new insights into the potential effects of BPS exposure on the reproductive function of the body and its relevant mechanisms of action.
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Affiliation(s)
- Min Zhao
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Wuhan 430061, China
| | - Ying Xie
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Wuhan 430061, China
| | - Xiuqin Xu
- Wuhan Biobank Co., Ltd., Wuhan 430070, China
| | - Zequan Zhang
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Wuhan 430061, China
| | - Can Shen
- School of Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Xianglin Chen
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Wuhan 430061, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Biran Zhu
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, China; Hubei Shizhen Laboratory, Wuhan 430061, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Lihua Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Bingsheng Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Cai Q, Li Q, Zhong S, Chen M, Zhong L, Li S, Li H, Chen Y, Wu J. Ultrasound-targeted microbubble destruction rapidly improves left ventricular function in rats with ischemic cardiac dysfunction. Int J Cardiol 2024; 404:131943. [PMID: 38458386 DOI: 10.1016/j.ijcard.2024.131943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/19/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Previous studies have demonstrated the efficacy of ultrasound-targeted microbubble destruction (UTMD) in the treatment of ischemic heart failure (HF). The purpose of this study was to explore the mechanism by which UTMD improves ischemic HF. METHODS An ischemic heart failure model was established using Sprague-Dawley rats. Rats were randomly divided into 7 groups: sham group, HF group, HF + MB group, HF + ultrasound (US) group, HF + UTMD group, HF + UTMD+LY294002 group, and HF + LY294002 group. Serum BNP level and echocardiographic parameters were measured to evaluate cardiac function. PI3K/Akt/eNOS signaling pathway protein levels were detected by immunohistochemistry (IHC) and western blotting. The concentrations of nitrous oxide (NO) and ATP were detected by ELISA, and hematoxylin and eosin (HE) staining was used to evaluate myocardial tissue. RESULTS UTMD rapidly improved ejection fraction (EF) (HF: 37.16 ± 1.21% vs. HF + UTMD: 46.31 ± 3.00%, P < 0.01) and fractional shortening (FS) (HF: 18.53 ± 0.58% vs. HF + UTMD: 24.05 ± 1.84%, P < 0.01) in rats with ischemic HF. UTMD activated the PI3K/AKT/eNOS signaling pathway (HF vs. HF + UTMD, P < 0.01) and promoted the release of NO and ATP (HF vs. HF + UTMD, both, P < 0.05). Inhibition of the PI3K/AKT/eNOS signaling pathway by LY294002 worsened EF (HF: 37.16 ± 1.21% vs. HF + LY294002: 32.73 ± 3.05%, P < 0.05), and the release of NO and ATP by UTMD (HF + UTMD vs. HF + UTMD+LY294002, P < 0.05). CONCLUSIONS UTMD can rapidly improve cardiac function in ischemic HF by activating the PI3K/Akt/eNOS signaling pathway and promoting the release of NO and ATP.
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Affiliation(s)
- Qianyun Cai
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qin Li
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shenrong Zhong
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Miaona Chen
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Longhe Zhong
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shasha Li
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Haoqi Li
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuanqi Chen
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Juefei Wu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Southern Medical University, Guangzhou, China.
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90
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Zhang Q, Dai J, Lin Y, Li M. Isobavachalcone alleviates ischemic stroke by suppressing HDAC1 expression and improving M2 polarization. Brain Res Bull 2024; 211:110944. [PMID: 38604377 DOI: 10.1016/j.brainresbull.2024.110944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Ischemic stroke is a serious cerebrovascular condition. Isobavachalcone (ISO) has been documented to exhibit an anti-inflammatory effect across a variety of diseases; however, its protective impact on ischemic stroke remains unexplored. In this study, we evaluated the influence of ISO in both transient middle cerebral artery occlusion/reperfusion (tMCAO/R) rat models and oxygen-glucose deprivation/reperfusion (OGD/R) cell models. We observed that pretreatment with 50 mg/kg ISO diminished the volume of brain infarction, reduced brain edema, and ameliorated neurological deficits in rats. A reduction in Nissl bodies was noted in the tMCAO/R group, which was reversed following treatment with 50 mg/kg ISO. TUNEL/NeuN double staining revealed a decrease in TUNEL-positive cells in tMCAO/R rats treated with ISO. Furthermore, ISO treatment suppressed the expression of cleaved caspase-3 and BAX, while elevating the expression of BCL-2 in tMCAO/R rats. The levels of CD86 and iNOS were elevated in tMCAO/R rats; conversely, ISO treatment enhanced the expression of CD206 and Arg-1. Additionally, the expression of TNF-α, IL-6, and IL-1β was elevated in tMCAO/R rats, whereas ISO treatment counteracted this effect. ISO treatment also increased the expression of TGF-β and IL-10 in the ischemic penumbra of tMCAO/R rats. It was found that ISO treatment hindered microglial M1 polarization and favored M2 polarization. Histone Deacetylase 1 (HDAC1) is the downstream target protein of ISO, with ISO treatment resulting in decreased HDAC1 expression in both tMCAO/R rats and OGD/R-induced cells. Overexpression of HDAC1 was shown to promote microglial M1 polarization and inhibit M2 polarization in OGD/R+ISO cells. Overall, ISO treatment mitigated brain damage following ischemic stroke by promoting M2 polarization and attenuated ischemic injury by repressing HDAC1 expression.
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Affiliation(s)
- Qiannan Zhang
- Department of Neurology, The Second Hospital of Dalian Medical University, Dalian, People's Republic of China
| | - Junting Dai
- Department of Pharmacy, The Second Hospital of Dalian Medical University, Dalian, People's Republic of China
| | - Yongzhong Lin
- Department of Neurology, The Second Hospital of Dalian Medical University, Dalian, People's Republic of China.
| | - Miao Li
- Department of Pharmacy, The Second Hospital of Dalian Medical University, Dalian, People's Republic of China.
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91
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Zhao X, Su H, Chen H, Tang X, Li W, Huang A, Fang G, Chen Q, Luo Y, Pang Y. Integrated serum pharmacochemistry and network pharmacology to explore the mechanism of Yi-Shan-Hong formula in alleviating chronic liver injury. Phytomedicine 2024; 128:155439. [PMID: 38537438 DOI: 10.1016/j.phymed.2024.155439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/27/2024] [Accepted: 02/08/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Chronic liver injury (CLI) is a complex condition that requires effective therapeutic interventions. The Yi-Shan-Hong (YSH) formula is an empirically derived remedy that has shown effectiveness and safety in the management of chronic liver damage. However, the bioactive components and multifaceted mechanisms of YSH remain inadequately understood. PURPOSE To examine the bioactive compounds and functional processes that contribute to the therapeutic benefits of YSH against CLI. METHODS Serum pharmacochemistry and network pharmacology were employed to identify active compounds and possible targets of YSH in CLI. In addition, YSH was also given in three doses to d-(+)-galactosamine hydrochloride (D-GalN) -induced CLI rats to test its therapeutic efficacy. RESULTS The analysis of serum samples successfully detected 25 compounds from YSH. Searches on the databases resulted in 277 genes as being correlated with chemicals in YSH, and 397 genes associated with CLI. In vivo experiments revealed that YSH displayed a notable therapeutic impact on liver injury caused by d-GalN. This was evidenced by enhanced liver function and histopathological improvements, reduced oxidative stress response, proinflammatory factors, and fibrosis levels. Importantly, no discernible adverse effects were observed. Furthermore, the administration of YSH treatment reversed the activation of AKT phosphorylation caused by d-GalN, aligning with the findings of the network pharmacology study. CONCLUSION These findings provide preclinical evidence of YSH's therapeutic value in CLI and highlight its hepatoprotective action via the PI3K/AKT signaling pathway.
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Affiliation(s)
- Xinyi Zhao
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Hua Su
- Institute of Chinese Materia Medica, Guangxi Institute of Chinese Medicine & Pharmaceutical Science, Nanning 530022, China
| | - Haiyan Chen
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xiusong Tang
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Wenling Li
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - An Huang
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Gang Fang
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Qing Chen
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China.
| | - Yudong Luo
- Guangxi University of Chinese Medicine Bainianle Pharmaceutical Co. Ltd., Nanning 530023, China.
| | - Yuzhou Pang
- College of Zhuang Medicine, Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, Nanning 530200, China.
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92
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Kern KA, DiBrog AM, Kaur K, Przybysz JT, Mietlicki-Baase EG. Chronic pramlintide decreases feeding via a reduction in meal size in male rats. Peptides 2024; 176:171197. [PMID: 38493922 DOI: 10.1016/j.peptides.2024.171197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/29/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Amylin, a pancreatic hormone, is well-established to suppress feeding by enhancing satiation. Pramlintide, an amylin analog that is FDA-approved for the treatment of diabetes, has also been shown to produce hypophagia. However, the behavioral mechanisms underlying the ability of pramlintide to suppress feeding are unresolved. We hypothesized that systemic pramlintide administration in rats would reduce energy intake, specifically by reducing meal size. Male rats were given b.i.d. administration of intraperitoneal pramlintide or vehicle for 1 week, and chow intake, meal patterns, and body weight were monitored throughout the test period. Consistent with our hypothesis, pramlintide decreased chow intake mainly via suppression of meal size, with corresponding reductions in meal duration on several days. Fewer effects on meal number or feeding rate were detected. Pramlintide also reduced weight gain over the 1-week study. These results highlight that the behavioral mechanisms by which pramlintide produces hypophagia are similar to those driven by amylin itself, and provide important insight into the ability of this pharmacotherapy to promote negative energy balance over a period of chronic administration.
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Affiliation(s)
- Katherine A Kern
- Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Adrianne M DiBrog
- Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Kiran Kaur
- Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Johnathan T Przybysz
- Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Elizabeth G Mietlicki-Baase
- Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, State University of New York, Buffalo, NY 14214, USA; Center for Ingestive Behavior Research, University at Buffalo, State University of New York, Buffalo, NY 14260, USA.
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93
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Yue C, Li R, Li C, Yang T, Huang X, Lei R, Yan Y, Liu Y, Li Q, Yan Q, Zuo D, Liu S, Yang M. Ultrasound‑targeted microbubble destruction technology delivering β‑klotho to the heart enhances FGF21 sensitivity and attenuates heart remodeling post‑myocardial infarction. Int J Mol Med 2024; 53:54. [PMID: 38666537 DOI: 10.3892/ijmm.2024.5378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 04/11/2024] [Indexed: 05/01/2024] Open
Abstract
Fibroblast growth factor (FGF)21 is a peptide hormone that improves mitochondrial function and energy metabolism, and the deficiency of its co‑receptor β‑klotho (KLB) causes decreased FGF21 sensitivity. The present study examined whether the cardiac delivery of plasmids containing the KLB gene via ultrasound‑targeted microbubble destruction (UTMD) enhances the efficacy of FGF21 against heart failure post‑acute myocardial infarction (AMI). For this purpose, the levels of FGF21 in patients and rats with heart dysfunction post‑infarction were determined using ELISA. Sprague‑Dawley rats received the 3X UTMD‑mediated delivery of KLB@cationic microbubbles (KLB@CMBs) 1 week following the induction of AMI. Echocardiography, histopathology and biochemical analysis were performed at 4 weeks following the induction of AMI. The results revealed that patients with heart failure post‑infarction had higher serum FGF21 levels than the healthy controls. However, the downstream signal, KLB, but not α‑klotho, was reduced in the heart tissues of rats with AMI. As was expected, treatment with FGF21 did not substantially attenuate heart remodeling post‑infarction. It was found that decreased receptors KLB in the heart may result in the insensitivity to FGF21 treatment. In vivo, the UTMD technology‑mediated delivery of KLB@CMBs to the heart significantly enhanced the effects of FGF21 administration on cardiac remodeling and mitochondrial dysfunction in the rats following infarction. The delivery of KLB to the heart by UTMD and the administration of FGF21 attenuated mitochondrial impairment and oxidative stress by activating nuclear factor erythroid 2‑related factor 2 signals. On the whole, the present study demonstrates that the cardiac delivery of KLB significantly optimizes the cardioprotective effects of FGF21 therapy on adverse heart remodeling. UTMD appears a promising interdisciplinary approach with which to improve heart failure post‑myocardial infarction.
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Affiliation(s)
- Chaofu Yue
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Rong Li
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Chunyan Li
- Department of Endocrinology and Metabolism, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Taoxian Yang
- Nursing Department, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Xian Huang
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Rong Lei
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Yongjun Yan
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Yuan Liu
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Qiaolin Li
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Qinyong Yan
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Dingrong Zuo
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Shisheng Liu
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
| | - Mei Yang
- Department of Intensive Care Unit, Qujing First People's Hospital, Qujing, Yunnan 655099, P.R. China
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94
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Rana S, Thakre PP, Fuller DD. Ampakines increase diaphragm activation following mid-cervical contusion injury in rats. Exp Neurol 2024; 376:114769. [PMID: 38582278 DOI: 10.1016/j.expneurol.2024.114769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024]
Abstract
Ampakines are positive allosteric modulators of AMPA receptors. We hypothesized that low-dose ampakine treatment increases diaphragm electromyogram (EMG) activity after mid-cervical contusion injury in rats. Adult male and female Sprague Dawley rats were implanted with in-dwelling bilateral diaphragm EMG electrodes. Rats received a 150 kDyn C4 unilateral contusion (C4Ct). At 4- and 14-days following C4Ct, rats were given an intravenous bolus of ampakine CX717 (5 mg/kg, n = 10) or vehicle (2-hydroxypropyl-beta-cyclodextrin; HPCD; n = 10). Diaphragm EMG was recorded while breathing was assessed using whole-body plethysmography. At 4-days, ampakine administration caused an immediate and sustained increase in bilateral peak inspiratory diaphragm EMG bursting and ventilation. The vehicle had no impact on EMG bursting. CX717 treated rats were able to increase EMG activity during a respiratory challenge to a greater extent vs. vehicle treated. Rats showed a considerable degree of spontaneous recovery of EMG bursting by 14 days, and the impact of CX717 delivery was blunted as compared to 4-days. Direct recordings from the phrenic nerve at 21-24 days following C4Ct confirmed that ampakines stimulated bilateral phrenic neural output in injured rats. We conclude that low-dose intravenous treatment with a low-impact ampakine can enhance diaphragm activation shortly following mid-cervical contusion injury, when deficits in diaphragm activation are prominent.
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Affiliation(s)
- Sabhya Rana
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, United States of America; McKnight Brain Institute, University of Florida, Gainesville, FL 32610, United States of America; Breathing Research and Therapeutics Center, Gainesville, FL 32610, United States of America
| | - Prajwal P Thakre
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, United States of America; McKnight Brain Institute, University of Florida, Gainesville, FL 32610, United States of America; Breathing Research and Therapeutics Center, Gainesville, FL 32610, United States of America
| | - David D Fuller
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, United States of America; McKnight Brain Institute, University of Florida, Gainesville, FL 32610, United States of America; Breathing Research and Therapeutics Center, Gainesville, FL 32610, United States of America.
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95
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Yang S, Huang G, Liang X, Sun Y, Xian L. Curcumol reduces lower limb arteriosclerosis in rats by inhibiting human arterial smooth muscle cell activity. Clin Exp Pharmacol Physiol 2024; 51:e13867. [PMID: 38684457 DOI: 10.1111/1440-1681.13867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/20/2024] [Accepted: 04/07/2024] [Indexed: 05/02/2024]
Abstract
Cardiovascular diseases, particularly those involving arterial stenosis and smooth muscle cell proliferation, pose significant health risks. This study aimed to investigate the therapeutic potential of curcumol in inhibiting platelet-derived growth factor-BB (PDGF-BB)-induced human aortic smooth muscle cell (HASMC) proliferation, migration and autophagy. Using cell viability assays, 5-ethynyl-2'-deoxyuridine (EdU) incorporation assays and Western Blot analyses, we observed that curcumol effectively attenuated PDGF-BB-induced HASMC proliferation and migration in a concentration-dependent manner. Furthermore, curcumol mitigated PDGF-BB-induced autophagy, as evidenced by the downregulation of LC3-II/LC3-I ratio and upregulation of P62. In vivo experiments using an arteriosclerosis obliterans model demonstrated that curcumol treatment significantly ameliorated arterial morphology and reduced stenosis. Additionally, curcumol inhibited the activity of the KLF5/COX2 axis, a key pathway in vascular diseases. These findings suggest that curcumol has the potential to serve as a multi-target therapeutic agent for vascular diseases.
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MESH Headings
- Animals
- Sesquiterpenes/pharmacology
- Sesquiterpenes/therapeutic use
- Humans
- Rats
- Arteriosclerosis/drug therapy
- Arteriosclerosis/pathology
- Arteriosclerosis/metabolism
- Cell Proliferation/drug effects
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/cytology
- Male
- Cell Movement/drug effects
- Lower Extremity/blood supply
- Autophagy/drug effects
- Rats, Sprague-Dawley
- Becaplermin/pharmacology
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Affiliation(s)
- Shengzhuang Yang
- Department of Cardiovascular Thoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Gaosheng Huang
- Department of Cardiovascular Thoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiangsen Liang
- Department of Cardiovascular Thoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yu Sun
- Department of Cardiovascular Thoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lei Xian
- Department of Cardiovascular Thoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
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96
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Jha A, Kumar M, Goswami P, Manjit M, Bharti K, Koch B, Mishra B. Hyaluronic acid-oleylamine and chitosan-oleic acid conjugate-based hybrid nanoparticle delivery via. dissolving microneedles for enhanced treatment efficacy in localized breast cancer. Biomater Adv 2024; 160:213865. [PMID: 38643693 DOI: 10.1016/j.bioadv.2024.213865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 04/23/2024]
Abstract
Microneedle technology offers a minimally invasive treatment strategy to deliver chemotherapeutics to localized tumors. Amalgamating the surface functionalized nanoparticles with microneedle technology can potentially deliver drugs directly to tumors and subsequently target cancer cells via, overexpressed receptors on the cell surface, thereby enhancing the treatment efficacy while reducing side effects. Here, we report cetuximab anchored hyaluronic acid-oleylamine and chitosan-oleic acid-based hybrid nanoparticle (HA-OA/CS-OA NPT)-loaded dissolving microneedles (MN) for targeted delivery of cabazitaxel (CBT) in localized breast cancer tumor. The HA-OA/CS-OA NPT was characterized for their size, surface charge, morphology, physicochemical characteristics, drug release behavior, and in vitro anti-cancer efficacy. The HA-OA/CS-OA NPT were of ~125 nm size, showed enhanced cytotoxicity and cellular uptake, and elicited a superior apoptotic response against MDA-MB-231 cells. Subsequently, the morphology and physicochemical characteristics of HA-OA/CS-OA NPT-loaded MN were also evaluated. The fabricated microneedles were of ~550 μm height and showed loading of nanoparticles equivalent to ~250 μg of CBT. The ex vivo skin permeation study revealed fast dissolution of microneedles upon hydration, while the drug permeation across the skin exhibited ~4-fold improvement in comparison to free drug-loaded MN. In vivo studies performed on DMBA-induced breast cancer in female SD rats showed a marked reduction in tumor volume after administration of drug and nanoparticle-loaded microneedles in comparison to intravenous administration of free drug. However, the HA-OA/CS-OA NPT-MN showed the highest tumor reduction and survival rate, with the lowest body weight reduction in comparison to other treatment groups, indicating its superior efficacy and low systemic toxicity. Overall, the dissolving microneedle-mediated delivery of targeted nanoparticles loaded with chemotherapeutics offers a superior alternative to conventional intravenous chemotherapy.
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Affiliation(s)
- Abhishek Jha
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
| | - Manish Kumar
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
| | - Pooja Goswami
- Genotoxicology and Cancer Biology Laboratory, Department of Zoology Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
| | - Manjit Manjit
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
| | - Kanchan Bharti
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
| | - Biplob Koch
- Genotoxicology and Cancer Biology Laboratory, Department of Zoology Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
| | - Brahmeshwar Mishra
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
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Chen YX, Yang H, Wang DS, Chen TT, Qi XL, Tao L, Chen Y, Shen XC. Gastrodin alleviates mitochondrial dysfunction by regulating SIRT3-mediated TFAM acetylation in vascular dementia. Phytomedicine 2024; 128:155369. [PMID: 38547618 DOI: 10.1016/j.phymed.2024.155369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 12/03/2023] [Accepted: 01/15/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Mitochondrial dysfunction is key to the pathogenesis of vascular dementia (VaD). Sirtuin-3 (SIRT3), an essential member of the sirtuins family, has been proven to be a critical sirtuin in regulating mitochondrial function. The phenolic glucoside gastrodin (GAS), a bioactive ingredient from Gastrodiae Rhizome (known in Chinese as Tian ma) demonstrates significant neuroprotective properties against central nervous system disorders; however, the precise mechanisms through which GAS modulates VaD remain elusive. PURPOSE This study aims to investigate whether GAS confers a protective role against VaD, and to figure out the underlying molecular mechanisms. METHODS A bilateral common carotid artery occlusion (BCCAO)-mediated chronic cerebral hypoperfusion (CCH) VaD rat model and a hypoxia model using HT22 cells were employed to investigate pharmacological properties of GAS in mitigating mitochondrial dysfunction. A SIRT3 agonist resveratrol (RES), a SIRT3 inhibitor 3-TYP and SIRT3-knockdown in vitro were used to explore the mechanism of GAS in association with SIRT3. The ability of SIRT3 to bind and deacetylate mitochondrial transcription factor A (TFAM) was detected by immunoprecipitation assay, and TFAM acetylation sites were further validated using mass spectrometry. RESULTS GAS increased SIRT3 expression and ameliorated mitochondrial structure, mitochondrial respiration, mitochondrial dynamics along with upregulated TFAM, mitigating oxidative stress and senescence. Comparable results were noted with the SIRT3 agonist RES, indicating an impactful neuroprotection played by SIRT3. Specifically, the attenuation of SIRT3 expression through knockdown techniques or exposure to the SIRT3 inhibitor 3-TYP in HT22 cells markedly abrogated GAS-mediated mitochondrial rescuing function. Furthermore, our findings elucidate a novel facet: SIRT3 interacted with and deacetylated TFAM at the K5, K7, and K8 sites. Decreased SIRT3 is accompanied by hyper-acetylated TFAM. CONCLUSION The present results were the first to demonstrate that the SIRT3/TFAM pathway is a protective target for reversing mitochondrial dysfunction in VaD. The findings suggest that GAS-mediated modulation of the SIRT3/TFAM pathway, a novel mechanism, could ameliorate CCH-induced VaD, offering a potentially beneficial therapeutic strategy for VaD.
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Affiliation(s)
- Yong-Xin Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Hong Yang
- The Maternal and Child Health Care Hospital of Guizhou Medical University, Guiyang 550003, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Da-Song Wang
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Ting-Ting Chen
- The Maternal and Child Health Care Hospital of Guizhou Medical University, Guiyang 550003, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Xiao-Lan Qi
- The Key Laboratory of Medical Molecular Biology, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Ling Tao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China
| | - Yan Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China.
| | - Xiang-Chun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guiyang, Guizhou 561113, China.
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Zhang MF, Wang JH, Sun S, Xu YT, Wan D, Feng S, Tian Z, Zhu HF. Catalpol attenuates ischemic stroke by promoting neurogenesis and angiogenesis via the SDF-1α/CXCR4 pathway. Phytomedicine 2024; 128:155362. [PMID: 38522312 DOI: 10.1016/j.phymed.2024.155362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 12/16/2023] [Accepted: 01/14/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Stroke is a leading cause of disability and death worldwide. Currently, there is a lack of clinically effective treatments for the brain damage following ischemic stroke. Catalpol is a bioactive compound derived from the traditional Chinese medicine Rehmannia glutinosa and shown to be protective in various neurological diseases. However, the potential roles of catalpol against ischemic stroke are still not completely clear. PURPOSE This study aimed to further elucidate the protective effects of catalpol against ischemic stroke. METHODS A rat permanent middle cerebral artery occlusion (pMCAO) and oxygen-glucose deprivation (OGD) model was established to assess the effect of catalpol in vivo and in vitro, respectively. Behavioral tests were used to examine the effects of catalpol on neurological function of ischemic rats. Immunostaining was performed to evaluate the proliferation, migration and differentiation of neural stem cells (NSCs) as well as the angiogenesis in each group. The protein level of related molecules was detected by western-blot. The effects of catalpol on cultured NSCs as well as brain microvascular endothelial cells (BMECs) subjected to OGD in vitro were also examined by similar methods. RESULTS Catalpol attenuated the neurological deficits and improved neurological function of ischemic rats. It stimulated the proliferation of NSCs in the subventricular zone (SVZ), promoted their migration to the ischemic cortex and differentiation into neurons or glial cells. At the same time, catalpol increased the cerebral vessels density and the number of proliferating cerebrovascular endothelial cells in the infracted cortex of ischemic rats. The level of SDF-1α and CXCR4 in the ischemic cortex was found to be enhanced by catalpol treatment. Catalpol was also shown to promote the proliferation and migration of cultured NSCs as well as the proliferation of BMECs subjected to OGD insult in vitro. Interestingly, the impact of catalpol on cultured cells was inhibited by CXCR4 inhibitor AMD3100. Moreover, the culture medium of BMECs containing catalpol promoted the proliferation of NSCs, which was also suppressed by AMD3100. CONCLUSION Our data demonstrate that catalpol exerts neuroprotective effects by promoting neurogenesis and angiogenesis via the SDF-1α/CXCR4 pathway, suggesting the therapeutic potential of catalpol in treating cerebral ischemia.
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Affiliation(s)
- Mei-Feng Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Jing-Hui Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Si Sun
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yi-Tong Xu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Dong Wan
- Department of Emergency and Critical Care Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shan Feng
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Zhen Tian
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
| | - Hui-Feng Zhu
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
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99
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Nasta TZ, Tabandeh MR, Amini K, Abbasi A, Dayer D, Jalili C. The influence of indole propionic acid on molecular markers of steroidogenesis, ER stress, and apoptosis in rat granulosa cells exposed to high glucose conditions. J Steroid Biochem Mol Biol 2024; 240:106509. [PMID: 38508473 DOI: 10.1016/j.jsbmb.2024.106509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/13/2024] [Accepted: 03/17/2024] [Indexed: 03/22/2024]
Abstract
Hyperglycemia is known as one of the main causes of infertility in human societies. Indole propionic acid (IPA) is produced by intestinal microbiota and has antioxidant and anti-inflammatory properties. This study aims to investigate the effects of IPA on molecular indices of steroidogenesis, ER stress, and apoptosis induced by high glucose (HG) in granulosa cells. Primary GCs, isolated from ovarian follicles of Rats were cultured in 5 mM (control) and 30 mM (HG) of glucose and in the presence of 10 and 20 µM of IPA for 24 h. The cell viability was assessed by MTT. The gene expression of P450SCC, 3βHSD, CYP19A, BAX, BCL2, and STAR was evaluated by Real-Time PCR. Protein expression of ATF6, PERK, GRP78, and CHOP determined by western blot. Progesterone, estradiol, IL-1β, and TNF-α were measured by ELISA. HG decreased the viability, and expression of P450SCC, 3βHSD, CYP19A, BCL2, STAR, and increased BAX. 10 and 20 µM of IPA increased cell viability, expression of P450SCC, 3βHSD, CYP19A, BCL2 and STAR and decreased BAX compared to the HG group. The expression of ATF6, PERK, GRP78, and CHOP proteins increased by HG and IPA decreased the expression of these proteins compared to the HG group. Also, HG decreased progesterone and estradiol levels and increased IL-1β and TNF-α. IPA significantly increased progesterone and estradiol and decreased IL-1β and TNF-α compared to the HG group. IPA can improve the side effects of HG in GCs of rats, as responsible cells for fertility, by improving steroidogenesis, regulation of ER-stress pathway, suppression of inflammation, and apoptosis.
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Affiliation(s)
- Touraj Zamir Nasta
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Reza Tabandeh
- Department of Basic Sciences, Division of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Komail Amini
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Ardeshir Abbasi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Dian Dayer
- Cellular and Molecular Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Cyrus Jalili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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100
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Walker NB, Tucker BR, Thomas LN, Tapp AE, Neel AI, Chen R, Jones SR, Drenan RM. β2* nAChR sensitivity modulates acquisition of cocaine self-administration in male rats. Neuropharmacology 2024; 250:109927. [PMID: 38508306 PMCID: PMC10994757 DOI: 10.1016/j.neuropharm.2024.109927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/07/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
Signaling through nicotinic acetylcholine receptors (nAChRs) plays a role in cocaine reward and reinforcement, suggesting that the cholinergic system could be manipulated with therapeutics to modulate aspects of cocaine use disorder (CUD). We examined the interaction between nAChRs and cocaine reinforcement by expressing a hypersensitive β2 nAChR subunit (β2Leu9'Ser) in the ventral tegmental area of male Sprague Dawley rats. Compared to control rats, β2Leu9'Ser rats acquired (fixed ratio) intravenous cocaine self-administration faster and with greater likelihood. By contrast, β2Leu9'Ser rats were approximately equivalent to controls in their intake of cocaine on a progressive ratio schedule of reinforcement, suggesting differential effects of cholinergic signaling depending on experimental parameters. Like progressive ratio cocaine SA, β2Leu9'Ser rats and controls did not differ significantly in food SA assays, including acquisition on a fixed ratio schedule or in progressive ratio sessions. These results highlight the specific role of high-affinity, heteropentameric β2* (β2-containing) nAChRs in acquisition of cocaine SA, suggesting that mesolimbic acetylcholine signaling is active during this process.
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Affiliation(s)
- Noah B Walker
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Brenton R Tucker
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Leanne N Thomas
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Andrew E Tapp
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Anna I Neel
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Rong Chen
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Sara R Jones
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Ryan M Drenan
- Department of Physiology & Pharmacology, Wake Forest University School of Medicine, Winston-Salem, NC, USA.
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