1
|
Li W, Cao J, Zhang Y, Ling G, Tan N, Wei Y, Zhang Y, Wang X, Qian W, Jiang J, Zhang J, Wang W, Wang Y. Aucubin alleviates doxorubicin-induced cardiotoxicity through crosstalk between NRF2 and HIPK2 mediating autophagy and apoptosis. Phytomedicine 2024; 127:155473. [PMID: 38422972 DOI: 10.1016/j.phymed.2024.155473] [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: 10/24/2023] [Revised: 02/01/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Doxorubicin (DOX) is widely used for the treatment of a variety of cancers. However, its clinical application is limited by dose-dependent cardiotoxicity. Recent findings demonstrated that autophagy inhibition and apoptosis of cardiomyocytes induced by oxidative stress dominate the pathophysiology of DOX-induced cardiotoxicity (DIC), however, there are no potential molecules targeting on these. PURPOSE This study aimed to explore whether aucubin (AU) acting on inimitable crosstalk between NRF2 and HIPK2 mediated the autophagy, oxidative stress, and apoptosis in DIC, and provide a new and alternative strategy for the treatment of DIC. METHODS AND RESULTS We first demonstrated the protection of AU on cardiac structure and function in DIC mice manifested by increased EF and FS values, decreased serum CK-MB and LDH contents and well-aligned cardiac tissue in HE staining. Furthermore, AU alleviated DOX-induced myocardial oxidative stress, mitochondrial damage, apoptosis, and autophagy flux dysregulation in mice, as measured by decreased ROS, 8-OHdG, and TUNEL-positive cells in myocardial tissue, increased SOD and decreased MDA in serum, aligned mitochondria with reduced vacuoles, and increased autophagosomes. In vitro, AU alleviated DOX-induced oxidative stress, autophagy inhibition, and apoptosis by promoting NRF2 and HIPK2 expression. We also identified crosstalk between NRF2 and HIPK2 in DIC as documented by overexpression of NRF2 or HIPK2 reversed cellular oxidative stress, autophagy blocking, and apoptosis aggravated by HIPK2 or NRF2 siRNA, respectively. Simultaneously, AU promoted the expression and nuclear localization of NRF2 protein, which was reversed by HIPK2 siRNA, and AU raised the expression of HIPK2 protein as well, which was reversed by NRF2 siRNA. Crucially, AU did not affect the antitumor activity of DOX against MCF-7 and HepG2 cells, which made up for the shortcomings of previous anti-DIC drugs. CONCLUSION These collective results innovatively documented that AU regulated the unique crosstalk between NRF2 and HIPK2 to coordinate oxidative stress, autophagy, and apoptosis against DIC without compromising the anti-tumor effect of DOX in vitro.
Collapse
Affiliation(s)
- Weili Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jing Cao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yawen Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Guanjing Ling
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Nannan Tan
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yan Wei
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yuqin Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiaoping Wang
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China
| | - Weina Qian
- Affiliated Hospital of Shaanxi University of Chinese Medicine, Shaanxi University of Chinese Medicine, Xianyang 712000, China
| | - Jinchi Jiang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jingmei Zhang
- School of Life Sciences, Tsinghua University, Beijing 100029, China
| | - Wei Wang
- Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Beijing Key Laboratory of TCM Syndrome and Formula, Beijing University of Chinese Medicine, Beijing 100029, China; Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100029, China.
| | - Yong Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China; Beijing Key Laboratory of TCM Syndrome and Formula, Beijing University of Chinese Medicine, Beijing 100029, China; Key Laboratory of TCM Syndrome and Formula (Beijing University of Chinese Medicine), Ministry of Education, Beijing 100029, China.
| |
Collapse
|
2
|
Xiong QW, Jiang K, Shen XW, Ma ZR, Yan XM, Xia H, Cao X. The requirement of the mitochondrial protein NDUFS8 for angiogenesis. Cell Death Dis 2024; 15:253. [PMID: 38594244 PMCID: PMC11004167 DOI: 10.1038/s41419-024-06636-3] [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: 11/14/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/11/2024]
Abstract
Mitochondria are important for the activation of endothelial cells and the process of angiogenesis. NDUFS8 (NADH:ubiquinone oxidoreductase core subunit S8) is a protein that plays a critical role in the function of mitochondrial Complex I. We aimed to investigate the potential involvement of NDUFS8 in angiogenesis. In human umbilical vein endothelial cells (HUVECs) and other endothelial cell types, we employed viral shRNA to silence NDUFS8 or employed the CRISPR/Cas9 method to knockout (KO) it, resulting in impaired mitochondrial functions in the endothelial cells, causing reduction in mitochondrial oxygen consumption and Complex I activity, decreased ATP production, mitochondrial depolarization, increased oxidative stress and reactive oxygen species (ROS) production, and enhanced lipid oxidation. Significantly, NDUFS8 silencing or KO hindered cell proliferation, migration, and capillary tube formation in cultured endothelial cells. In addition, there was a moderate increase in apoptosis within NDUFS8-depleted endothelial cells. Conversely, ectopic overexpression of NDUFS8 demonstrated a pro-angiogenic impact, enhancing cell proliferation, migration, and capillary tube formation in HUVECs and other endothelial cells. NDUFS8 is pivotal for Akt-mTOR cascade activation in endothelial cells. Depleting NDUFS8 inhibited Akt-mTOR activation, reversible with exogenous ATP in HUVECs. Conversely, NDUFS8 overexpression boosted Akt-mTOR activation. Furthermore, the inhibitory effects of NDUFS8 knockdown on cell proliferation, migration, and capillary tube formation were rescued by Akt re-activation via a constitutively-active Akt1. In vivo experiments using an endothelial-specific NDUFS8 shRNA adeno-associated virus (AAV), administered via intravitreous injection, revealed that endothelial knockdown of NDUFS8 inhibited retinal angiogenesis. ATP reduction, oxidative stress, and enhanced lipid oxidation were detected in mouse retinal tissues with endothelial knockdown of NDUFS8. Lastly, we observed an increase in NDUFS8 expression in retinal proliferative membrane tissues obtained from human patients with proliferative diabetic retinopathy. Our findings underscore the essential role of the mitochondrial protein NDUFS8 in regulating endothelial cell activation and angiogenesis.
Collapse
Affiliation(s)
- Qian-Wei Xiong
- Department of Urology Surgery, Children's Hospital of Soochow University, Suzhou, China
| | - Kun Jiang
- Vascular Surgery Department, Kunshan Traditional Chinese Medicine Hospital, Kunshan, China
| | - Xiao-Wei Shen
- Department of General Surgery, QingPu Branch of Zhongshan Hospital Affiliated to Fudan University, QingPu District Central Hospital Shanghai, Shanghai, China
| | - Zhou-Rui Ma
- Department of Burns and Plastic Surgery, Children's Hospital of Soochow University, Suzhou, China
| | - Xiang-Ming Yan
- Department of Urology Surgery, Children's Hospital of Soochow University, Suzhou, China.
| | - Hao Xia
- Department of Pediatric Emergency and Critical Care Medicine, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Xu Cao
- Department of Urology Surgery, Children's Hospital of Soochow University, Suzhou, China.
| |
Collapse
|
3
|
Jiang J, Lu Y, Chu J, Zhang X, Xu C, Liu S, Wan Z, Wang J, Zhang L, Liu K, Liu Z, Yang A, Ren X, Zhang R. Anti-EGFR ScFv functionalized exosomes delivering LPCAT1 specific siRNAs for inhibition of lung cancer brain metastases. J Nanobiotechnology 2024; 22:159. [PMID: 38589859 PMCID: PMC11000333 DOI: 10.1186/s12951-024-02414-7] [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: 11/22/2023] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Brain metastasis (BM) is one of the leading causes of cancer-related deaths in patients with advanced non-small cell lung cancer (NSCLC). However, limited treatments are available due to the presence of the blood-brain barrier (BBB). Upregulation of lysophosphatidylcholine acyltransferase 1 (LPCAT1) in NSCLC has been found to promote BM. Conversely, downregulating LPCAT1 significantly suppresses the proliferation and metastasis of lung cancer cells. In this study, we firstly confirmed significant upregulation of LPCAT1 in BM sites compared to primary lung cancer by analyzing scRNA dataset. We then designed a delivery system based on a single-chain variable fragment (scFv) targeting the epidermal growth factor receptor (EGFR) and exosomes derived from HEK293T cells to enhance cell-targeting capabilities and increase permeability. Next, we loaded LPCAT1 siRNA (siLPCAT1) into these engineered exosomes (exoscFv). This novel scFv-mounted exosome successfully crossed the BBB in an animal model and delivered siLPCAT1 to the BM site. Silencing LPCAT1 efficiently arrested tumor growth and inhibited malignant progression of BM in vivo without detectable toxicity. Overall, we provided a potential platform based on exosomes for RNA interference (RNAi) therapy in lung cancer BM.
Collapse
Affiliation(s)
- Jun Jiang
- Department of Health Service, Base of Health Service, Air Force Medical University, Xi'an, China
- Department of Urology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Yuan Lu
- Department of Respiratory and Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing, 210009, China.
| | - Jie Chu
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi'an, China
| | - Xiao Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi'an, China
| | - Chao Xu
- Department of Urology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Shaojie Liu
- Department of Urology, Xijing Hospital, Air Force Medical University, Xi'an, China
| | - Zhuo Wan
- Department of Hematology, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Jiawei Wang
- Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Lu Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi'an, China
| | - Kui Liu
- Department of Health Service, Base of Health Service, Air Force Medical University, Xi'an, China
| | - Zhenhua Liu
- Department of Health Service, Base of Health Service, Air Force Medical University, Xi'an, China
| | - Angang Yang
- State Key Laboratory of Cancer Biology, Department of Immunology, Air Force Medical University, Xi'an, Shaanxi, 710032, China
| | - Xinling Ren
- Department of Respiratory and Critical Care Medicine, Shenzhen General Hospital, Shenzhen University, Shenzhen, China
| | - Rui Zhang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Air Force Medical University, Xi'an, China.
- State Key Laboratory of Cancer Biology, Department of Immunology, Air Force Medical University, Xi'an, Shaanxi, 710032, China.
| |
Collapse
|
4
|
Zhang Y, Chu B, Fan Q, Song X, Xu Q, Qu Y. M2-type macrophage-targeted delivery of IKKβ siRNA induces M2-to-M1 repolarization for CNV gene therapy. Nanomedicine 2024; 57:102740. [PMID: 38458368 DOI: 10.1016/j.nano.2024.102740] [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: 11/25/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/10/2024]
Abstract
Choroidal Neovascularization (CNV) is capable of inciting recurrent hemorrhage in the macular region, severely impairing patients' visual acuity. During the onset of CNV, infiltrating M2 macrophages play a crucial role in promoting angiogenesis. To control this disease, our study utilizes the RNA interference (RNAi)-based gene therapy to reprogram M2 macrophages to the M1 phenotype in CNV lesions. We synthesize the mannose-modified siRNA-loaded liposome specifically targeting M2 macrophages to inhibit the inhibitory kappa B kinase β (IKKβ) gene involved in the polarization of macrophages, consequently modulating macrophage polarization state. In vitro and in vivo, the mannose-modified IKKβ siRNA-loaded liposome (siIKKβ-ML) has been proven to effectively target M2 macrophages to repolarize them to M1 phenotype, and inhibit the progression of CNV. Collectively, our findings elucidate that siIKKβ-ML holds the potential to control CNV by reprogramming the macrophage phenotype, indicating a promising therapeutic avenue for CNV management.
Collapse
Affiliation(s)
- Yu Zhang
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Baorui Chu
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Qian Fan
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Xian Song
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Qian Xu
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Yi Qu
- Department of Geriatrics, Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan 250012, China; Key Laboratory of Cardiovascular Proteomics of Shandong Province, Jinan 250012, China; Jinan Clinical Research Center for Geriatric Medicine (202132001), Jinan 250012, China.
| |
Collapse
|
5
|
Hill SF, Yu W, Ziobro J, Chalasani S, Reger F, Meisler MH. Long-Term Downregulation of the Sodium Channel Gene Scn8a Is Therapeutic in Mouse Models of SCN8A Epilepsy. Ann Neurol 2024; 95:754-759. [PMID: 38113311 DOI: 10.1002/ana.26861] [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: 07/05/2023] [Revised: 11/06/2023] [Accepted: 12/14/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE De novo mutations of the voltage-gated sodium channel gene SCN8A cause developmental and epileptic encephalopathy (DEE). Most pathogenic variants result in gain-of-function changes in activity of the sodium channel Nav1.6, poorly controlled seizures, and significant comorbidities. In previous work, an antisense oligonucleotide (ASO) reduced Scn8a transcripts and increased lifespan after neonatal administration to a mouse model. Here, we tested long-term ASO treatment initiated after seizure onset, as required for clinical application. METHODS ASO treatment was initiated after observation of a convulsive seizure and repeated at 4 to 6 week intervals for 1 year. We also tested the long-term efficacy of an AAV10-short hairpin RNA (shRNA) virus administered on P1. RESULTS Repeated treatment with the Scn8a ASO initiated after seizure onset provided long-term survival and reduced seizure frequency during a 12 month observation period. A single treatment with viral shRNA was also protective during 12 months of observation. INTERPRETATION Downregulation of Scn8a expression that is initiated after the onset of seizures is effective for long-term treatment in a model of SCN8A-DEE. Repeated ASO administration or a single dose of viral shRNA prevented seizures and extended survival through 12 months of observation. ANN NEUROL 2024;95:754-759.
Collapse
Affiliation(s)
- Sophie F Hill
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, United States
- Department of Human Genetics, University of Michigan, Ann Arbor, MI
| | - Wenxi Yu
- Department of Human Genetics, University of Michigan, Ann Arbor, MI
| | - Julie Ziobro
- Department of Pediatrics, University of Michigan, Ann Arbor, MI
| | - Sanjna Chalasani
- Department of Human Genetics, University of Michigan, Ann Arbor, MI
| | - Faith Reger
- Department of Human Genetics, University of Michigan, Ann Arbor, MI
| | - Miriam H Meisler
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, United States
- Department of Human Genetics, University of Michigan, Ann Arbor, MI
- Department of Neurology, University of Michigan, Ann Arbor, MI
| |
Collapse
|
6
|
Guo L, Yang J, Yuan W, Li C, Li H, Yang Y, Xue R, Yan K. Baicalein ameliorated obesity-induced cardiac dysfunction by regulating the mitochondrial unfolded protein response through NRF2 signaling. Phytomedicine 2024; 126:155441. [PMID: 38394729 DOI: 10.1016/j.phymed.2024.155441] [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: 02/01/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND The mitochondrial unfolded protein response (UPRmt) is the first line of defense against mitochondrial dysfunction in several diseases. Baicalein, which is an extract of Scutellaria baicalensis Georgi roots, exerts mitoprotective effects on metabolic disorders and cardiovascular diseases. However, it remains unclear whether baicalein alleviates obesity-induced cardiac damage through the UPRmt. PURPOSE The present research designed to clarify the role of baicalein in lipotoxicity-induced myocardial apoptosis and investigated the UPRmt-related mechanism. METHODS In the in vitro experiment, palmitic acid (PA)-treated AC16 cardiomyocytes were established to mimic obesity-induced myocardial injury. After pretreatment of AC16 cells with baicalein, the levels of cell vitality, apoptosis, mitochondrial membrane potential, mitochondrial oxidative stress, and UPRmt-related proteins were determined. Additionally, AC16 cells were treated with ML385 or siRNA to explore the regulation of the UPRmt by NRF2 signaling. In the in vivo experiment, male db/db mice administered with baicalein for 8 weeks were used to validate the effects of baicalein on cardiac damage induced by obesity, the UPRmt, and the NRF2-related pathway. RESULTS In AC16 cardiomyocytes, PA dose-dependently increased the expression of UPRmt markers (HSP60, LONP1, ATF4, and ATF5). This increase was accompanied by enhanced production of mitochondrial ROS, reduced mitochondrial membrane potential, and elevated the expression levels of cytochrome c, cleaved caspase-3, and Bax/Bcl2, eventually leading to cell apoptosis. Baicalein treatment reversed UPRmt activation and mitochondrial damage and impeded mitochondrial-mediated cell apoptosis. Moreover, NRF2 downregulation by its inhibitor ML385 or siRNA diminished baicalein-mediated NRF2 signaling activation and UPRmt inhibition and triggered mitochondrial dysfunction. Additionally, NRF2 deficiency more intensely activated the UPRmt, resulting in mitochondrial oxidative stress and apoptosis of PA-induced cardiomyocytes, thus indicating that NRF2 plays a vital role in mitochondrial homeostasis regulation. In the in vivo study in db/db mice, baicalein inhibited the UPRmt, enhanced the antioxidant capacity, and attenuated cardiac dysfunction through a NRF2-activated pathway. CONCLUSION To our best knowledge, these results provide the first insight that baicalein inhibits the UPRmt to induce a protective effect against lipotoxicity-induced mitochondrial damage and cardiomyocyte apoptosis via activating NRF2 signaling and suggest a new role of NRF2 in UPRmt regulation.
Collapse
Affiliation(s)
- Lulu Guo
- The College of Life Sciences, Northwest University, Xi'an 710069, China; Department of Pharmacy, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China
| | - Junle Yang
- Department of Radiology, Xi' an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China
| | - Wenting Yuan
- The College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Chongyao Li
- Department of Pharmacy, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China
| | - Hui Li
- Department of Pharmacy, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China
| | - Yang Yang
- The College of Life Sciences, Northwest University, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Disease, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China
| | - Runqing Xue
- Department of Pharmacy, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Disease, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China.
| | - Kangkang Yan
- Department of Pharmacy, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Disease, Xi'an No. 3 Hospital, The Affiliated Hospital of Northwest University, Xi'an 710018, China.
| |
Collapse
|
7
|
Niveria K, ZafarYab M, Biswas L, Mahtab A, Verma AK. Leveraging selective knockdown of Sost gene by polyethyleneimine-siRNA-chitosan reduced gold nanoparticles to promote osteogenesis in MC3T3-E1 & MEF cells. Nanomedicine (Lond) 2024; 19:895-914. [PMID: 38530906 DOI: 10.2217/nnm-2023-0325] [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] [Indexed: 03/28/2024] Open
Abstract
Aim: Osteoporosis is a systemic skeletal disorder characterized by reduced osteoblast differentiation, predominantly by overexpression of the Sost gene. A layer-by-layer approach enabled encapsulation of Sost siRNA to enhance the short half-life and poor transfection capacity of siRNA. Materials & methods: Polyethyleneimine and siRNA on chitosan-coated gold nanoparticles (PEI/siRNA/Cs-AuNPs) were engineered using chitosan-reduced gold nanoparticles. They were characterized by dynamic light scattering, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared and gel-mobility assays. Detailed in vitro experiments, gene silencing and western blots were performed. Results: A total of 80% knockdown of the target sclerostin protein was observed by PEI/siRNA/Cs-AuNPs, q-PCR showed threefold downregulation of the Sost gene. Osteogenic markers RunX2 and Alp were significantly upregulated. Conclusion: We report a safe, biocompatible nanotherapeutic strategy to enhance siRNA protection and subsequent silencing to augment bone formation.
Collapse
Affiliation(s)
- Karishma Niveria
- Nanobiotech Lab, Department of Zoology, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Mohammad ZafarYab
- Nanobiotech Lab, Department of Zoology, Kirori Mal College, University of Delhi, Delhi, 110007, India
- NBRC, Department of Biological Sciences, Alabama State University, AL 36104, USA
| | - Largee Biswas
- Nanobiotech Lab, Department of Zoology, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Asiya Mahtab
- Nanobiotech Lab, Department of Zoology, Kirori Mal College, University of Delhi, Delhi, 110007, India
| | - Anita Kamra Verma
- Nanobiotech Lab, Department of Zoology, Kirori Mal College, University of Delhi, Delhi, 110007, India
- Fellow, Delhi School of Public Health, Institution of Eminence, University of Delhi, Delhi, 110007, India
| |
Collapse
|
8
|
Klementieva NV, Lunev EA, Shmidt AA, Loseva EM, Savchenko IM, Svetlova EA, Galkin II, Polikarpova AV, Usachev EV, Vassilieva SG, Marina VI, Dzhenkova MA, Romanova AD, Agutin AV, Timakova AA, Reshetov DA, Egorova TV, Bardina MV. RNA Interference Effectors Selectively Silence the Pathogenic Variant GNAO1 c.607 G > A In Vitro. Nucleic Acid Ther 2024; 34:90-99. [PMID: 38215303 DOI: 10.1089/nat.2023.0043] [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] [Indexed: 01/14/2024] Open
Abstract
RNA interference (RNAi)-based therapeutics hold the potential for dominant genetic disorders, enabling sequence-specific inhibition of pathogenic gene products. We aimed to direct RNAi for the selective suppression of the heterozygous GNAO1 c.607 G > A variant causing GNAO1 encephalopathy. By screening short interfering RNA (siRNA), we showed that GNAO1 c.607G>A is a druggable target for RNAi. The si1488 candidate achieved at least twofold allelic discrimination and downregulated mutant protein to 35%. We created vectorized RNAi by incorporating the si1488 sequence into the short hairpin RNA (shRNA) in the adeno-associated virus (AAV) vector. The shRNA stem and loop were modified to improve the transcription, processing, and guide strand selection. All tested shRNA constructs demonstrated selectivity toward mutant GNAO1, while tweaking hairpin structure only marginally affected the silencing efficiency. The selectivity of shRNA-mediated silencing was confirmed in the context of AAV vector transduction. To conclude, RNAi effectors ranging from siRNA to AAV-RNAi achieve suppression of the pathogenic GNAO1 c.607G>A and discriminate alleles by the single-nucleotide substitution. For gene therapy development, it is crucial to demonstrate the benefit of these RNAi effectors in patient-specific neurons and animal models of the GNAO1 encephalopathy.
Collapse
Affiliation(s)
- Natalia V Klementieva
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | - Evgenii A Lunev
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - Anna A Shmidt
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | | | - Irina M Savchenko
- Marlin Biotech LLC, Sochi, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina A Svetlova
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | - Ivan I Galkin
- Marlin Biotech LLC, Sochi, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - Anna V Polikarpova
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | - Evgeny V Usachev
- Laboratory of Translational Biomedicine, Gamaleya National Research Center for Epidemiology, Moscow, Russia
| | - Svetlana G Vassilieva
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | | | - Marina A Dzhenkova
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | - Anna D Romanova
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
| | - Anton V Agutin
- State Budgetary Healthcare Institution of Moscow Region "Balashikha Hospital," Balashikha, Russia
| | - Anna A Timakova
- Institute for Regenerative Medicine, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | - Tatiana V Egorova
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
| | - Maryana V Bardina
- Laboratory of Modeling and Gene Therapy of Hereditary Diseases, Institute of Gene Biology Russian Academy of Sciences, Moscow, Russia
- Marlin Biotech LLC, Sochi, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| |
Collapse
|
9
|
Zhang W, Shen J, Liang J, Ge C, Zhou Y, Yin L, Ji Y. Pulmonary RNA interference against acute lung injury mediated by mucus- and cell-penetrating nanocomplexes. Acta Biomater 2024; 177:332-346. [PMID: 38290689 DOI: 10.1016/j.actbio.2024.01.032] [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: 11/14/2023] [Revised: 01/03/2024] [Accepted: 01/22/2024] [Indexed: 02/01/2024]
Abstract
Trans-mucosal delivery of anti-inflammatory siRNA into alveolar macrophages represents a promising modality for the treatment of acute lung injury (ALI). However, its therapeutic efficacy is often hurdled by the lack of effective carriers that can simultaneously overcome the mucosal barrier and cell membrane barrier. Herein, we developed mucus/cell membrane dual-penetrating, macrophage-targeting polyplexes which enabled efficient intratracheal delivery of TNF-α siRNA (siTNF-α) to attenuate pulmonary inflammation against lipopolysaccharide (LPS)-induced ALI. P-G@Zn, a cationic helical polypeptide bearing both guanidine and zinc dipicolylamine (Zn-DPA) side charged groups, was designed to condense siTNF-α and promote macrophage internalization due to its helicity-dependent membrane activity. Coating of the polyplexes with charge-neutralizing carboxylated mannan (Man-COOH) greatly enhanced the mucus penetration potency due to shielding of the electrostatic adhesive interactions with the mucus, and it cooperatively enabled active targeting to alveolar macrophages to potentiate the intracellular delivery efficiency of siTNF-α. As such, intratracheally administered Man-COOH/P-G@Zn/siTNF-α polyplexes provoked notable TNF-α silencing by ∼75 % in inflamed lung tissues at 500 μg siRNA/kg, and demonstrated potent anti-inflammatory performance to treat ALI. This study provides an effective tool for the synchronized trans-mucosal delivery of siRNA into macrophages, and the unique properties of the polyplexes render remarkable potentials for anti-inflammatory therapy against ALI. STATEMENT OF SIGNIFICANCE: siRNA-mediated anti-inflammatory management of acute lung injury (ALI) is greatly challenged by the insufficient delivery across the mucus layer and cell membrane. To address such critical issue, mucus/cell membrane dual-penetrating, macrophage-targeting polyplexes are herein developed, which are comprised of an outer shell of carboxylated mannan (Man-COOH) and an inner nanocore formed by TNF-α siRNA (siTNF-α) and a cationic helical polypeptide P-G@Zn. Man-COOH coating endowed the polyplexes with high mucus-penetrating capability and macrophage-targeting ability, while P-G@Zn bearing both guanidine and zinc dipicolylamine afforded potent siTNF-α condensation capacity and high intracellular delivery efficiency with reduced cytotoxicity. Intratracheally administered polyplexes solicit pronounced TNF-α silencing and anti-inflammatory efficiencies in ALI mice. This study renders an effective example for overcoming the multiple barriers against trans-mucosal delivery of siRNA into macrophages, and holds profound potentials for gene therapy against ALI.
Collapse
Affiliation(s)
- Wenxin Zhang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Jingrui Shen
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Jialong Liang
- Department of Cardiothoracic Surgery, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi 214023, China
| | - Chenglong Ge
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Yang Zhou
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China.
| | - Yong Ji
- Department of Cardiothoracic Surgery, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi 214023, China.
| |
Collapse
|
10
|
Xu X, Li S, Yu W, Yao S, Fan H, Guo Z. Activation of RIG-I/MDA5 Signaling and Inhibition of CD47-SIRPα Checkpoint with a Dual siRNA-Assembled Nanoadjuvant for Robust Cancer Immunotherapy. Angew Chem Int Ed Engl 2024; 63:e202318544. [PMID: 38194267 DOI: 10.1002/anie.202318544] [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: 12/03/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/10/2024]
Abstract
Antigen-presenting cells (APCs) play a crucial role in the anti-tumor immunity as they are responsible for capturing, processing, and presenting tumor antigens to T cells. However, their activation is often limited by the absence of adjuvants and the suppressive effects of immune checkpoints, such as CD47-SIRPα. Herein, we present a nanoadjuvant that is self-assembled from long RNA building blocks generated through rolling circle transcription (RCT) reaction and further modified with cationic liposomes. Owing to the high load of densely packed RNA, this nanoadjuvant could robustly activate RIG-I/MDA5 signaling in APCs, leading to the maturation of dendritic cells (DCs) and the polarization of tumor-associated macrophages (TAMs) toward an anti-tumor M1-like phenotype. In addition, with a well-designed template, the generated long RNA from RCT reaction includes two kinds of siRNA targeting both CD47 in tumor cells and SIRPα in APCs. This dual gene silencing results in efficient inhibition of the CD47-SIRPα checkpoint. Collectively, the robust activation of RIG-I/MDA5 signaling and efficient inhibition of CD47-SIRPα checkpoint enhance the phagocytic activity of APCs, which in turn promotes the cross-priming of effector T cells and the activation of anti-tumor immune responses. This study therefore provides a simple and robust RNA nanoadjuvant for cancer immunotherapy.
Collapse
Affiliation(s)
- Xinyu Xu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Shumeng Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Wenhao Yu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Shankun Yao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Huanhuan Fan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Zijian Guo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| |
Collapse
|
11
|
Yu J, Li J, Matei N, Wang W, Tang L, Pang J, Li X, Fang L, Tang J, Zhang JH, Yan M. Intranasal administration of recombinant prosaposin attenuates neuronal apoptosis through GPR37/PI3K/Akt/ASK1 pathway in MCAO rats. Exp Neurol 2024; 373:114656. [PMID: 38114054 PMCID: PMC10922973 DOI: 10.1016/j.expneurol.2023.114656] [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: 09/27/2023] [Revised: 11/19/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023]
Abstract
Studies have reported that Prosaposin (PSAP) is neuroprotective in cerebrovascular diseases. We hypothesized that PSAP would reduce infarct volume by attenuating neuronal apoptosis and promoting cell survival through G protein-coupled receptor 37(GPR37)/PI3K/Akt/ASK1 pathway in middle cerebral artery occlusion (MCAO) rats. Two hundred and thirty-five male and eighteen female Sprague-Dawley rats were used. Recombinant human PSAP (rPSAP) was administered intranasally 1 h (h) after reperfusion. PSAP small interfering ribonucleic acid (siRNA), GPR37 siRNA, and PI3K specific inhibitor LY294002 were administered intracerebroventricularly 48 h before MCAO. Infarct volume, neurological score, immunofluorescence staining, Western blot, Fluoro-Jade C (FJC) and TUNEL staining were examined. The expression of endogenous PSAP and GPR37 were increased after MCAO. Intranasal administration of rPSAP reduced brain infarction, neuronal apoptosis, and improved both short- and long-term neurological function. Knockdown of endogenous PSAP aggravated neurological deficits. Treatment with exogenous rPSAP increased PI3K expression, Akt and ASK1 phosphorylation, and Bcl-2 expression; phosphorylated-JNK and Bax levels were reduced along with the number of FJC and TUNEL positive neurons. GPR37 siRNA and LY294002 abolished the anti-apoptotic effect of rPSAP at 24 h after MCAO. In conclusion, rPSAP attenuated neuronal apoptosis and improved neurological function through GPR37/PI3K/Akt/ASK1 pathway after MCAO in rats. Therefore, further exploration of PSAP as a potential treatment option in ischemic stroke is warranted.
Collapse
Affiliation(s)
- Jing Yu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Jinlan Li
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Nathanael Matei
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA; Department of Ophthalmology, University of Southern California, Los Angeles, CA 90007, USA
| | - Wenna Wang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Lihui Tang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Jinwei Pang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Xue Li
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Lili Fang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jiping Tang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - John H Zhang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA.
| | - Min Yan
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| |
Collapse
|
12
|
Huang YT, Hsu YT, Wu PY, Yeh YM, Lin PC, Hsu KF, Shen MR. Tight junction protein cingulin variant is associated with cancer susceptibility by overexpressed IQGAP1 and Rac1-dependent epithelial-mesenchymal transition. J Exp Clin Cancer Res 2024; 43:65. [PMID: 38424547 PMCID: PMC10905802 DOI: 10.1186/s13046-024-02987-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/16/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Cingulin (CGN) is a pivotal cytoskeletal adaptor protein located at tight junctions. This study investigates the link between CGN mutation and increased cancer susceptibility through genetic and mechanistic analyses and proposes a potential targeted therapeutic approach. METHODS In a high-cancer-density family without known pathogenic variants, we performed tumor-targeted and germline whole-genome sequencing to identify novel cancer-associated variants. Subsequently, these variants were validated in a 222 cancer patient cohort, and CGN c.3560C > T was identified as a potential cancer-risk allele. Both wild-type (WT) (c.3560C > C) and variant (c.3560C > T) were transfected into cancer cell lines and incorporated into orthotopic xenograft mice model for evaluating their effects on cancer progression. Western blot, immunofluorescence analysis, migration and invasion assays, two-dimensional gel electrophoresis with mass spectrometry, immunoprecipitation assays, and siRNA applications were used to explore the biological consequence of CGN c.3560C > T. RESULTS In cancer cell lines and orthotopic animal models, CGN c.3560C > T enhanced tumor progression with reduced sensitivity to oxaliplatin compared to the CGN WT. The variant induced downregulation of epithelial marker, upregulation of mesenchymal marker and transcription factor, which converged to initiate epithelial-mesenchymal transition (EMT). Proteomic analysis was conducted to investigate the elements driving EMT in CGN c.3560C > T. This exploration unveiled overexpression of IQGAP1 induced by the variant, contrasting the levels observed in CGN WT. Immunoprecipitation assay confirmed a direct interaction between CGN and IQGAP1. IQGAP1 functions as a regulator of multiple GTPases, particularly the Rho family. This overexpressed IQGAP1 was consistently associated with the activation of Rac1, as evidenced by the analysis of the cancer cell line and clinical sample harboring CGN c.3560C > T. Notably, activated Rac1 was suppressed following the downregulation of IQGAP1 by siRNA. Treatment with NSC23766, a selective inhibitor for Rac1-GEF interaction, resulted in the inactivation of Rac1. This intervention mitigated the EMT program in cancer cells carrying CGN c.3560C > T. Consistently, xenograft tumors with WT CGN showed no sensitivity to NSC23766 treatment, but NSC23766 demonstrated the capacity to attenuate tumor growth harboring c.3560C > T. CONCLUSIONS CGN c.3560C > T leads to IQGAP1 overexpression, subsequently triggering Rac1-dependent EMT. Targeting activated Rac1 is a strategy to impede the advancement of cancers carrying this specific variant.
Collapse
Affiliation(s)
- Yi-Ting Huang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ya-Ting Hsu
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Division of Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Ying Wu
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Min Yeh
- Department of Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Peng-Chan Lin
- Department of Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Keng-Fu Hsu
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Meng-Ru Shen
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| |
Collapse
|
13
|
Cui Z, Sun H, Gao Z, Li C, Xiao T, Bian Y, Liu Z, Gu T, Zhang J, Li T, Zhou Q, He Z, Li B, Li F, Xu Z, Xu H. TRIM21/USP15 balances ACSL4 stability and the imatinib resistance of gastrointestinal stromal tumors. Br J Cancer 2024; 130:526-541. [PMID: 38182686 PMCID: PMC10876985 DOI: 10.1038/s41416-023-02562-x] [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: 06/20/2023] [Revised: 12/09/2023] [Accepted: 12/15/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Imatinib has become an exceptionally effective targeted drug for treating gastrointestinal stromal tumors (GISTs). Despite its efficacy, the resistance to imatinib is common in GIST patients, posing a significant challenge to the effective treatment. METHODS The expression profiling of TRIM21, USP15, and ACSL4 in GIST patients was evaluated using Western blot and immunohistochemistry. To silence gene expression, shRNA was utilized. Biological function of TRIM21, USP15, and ACSL4 was examined through various methods, including resistance index calculation, colony formation, shRNA interference, and xenograft mouse model. The molecular mechanism of TRIM21 and USP15 in GIST was determined by conducting Western blot, co-immunoprecipitation, and quantitative real-time PCR (qPCR) analyses. RESULTS Here we demonstrated that downregulation of ACSL4 is associated with imatinib (IM) resistance in GIST. Moreover, clinical data showed that higher levels of ACSL4 expression are positively correlated with favorable clinical outcomes. Mechanistic investigations further indicated that the reduced expression of ACSL4 in GIST is attributed to excessive protein degradation mediated by the E3 ligase TRIM21 and the deubiquitinase USP15. CONCLUSION These findings demonstrate that the TRIM21 and USP15 control ACSL4 stability to maintain the IM sensitive/resistant status of GIST.
Collapse
Affiliation(s)
- Zhiwei Cui
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Haoyu Sun
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Zhishuang Gao
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Chao Li
- Department of General Surgery, Zhongshan Hospital, Fudan University School of Medicine, #180 Fenglin Road, Shanghai, 200032, China
| | - Tingting Xiao
- Department of Cardiology, the Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, 213003, Jiangsu, China
| | - Yibo Bian
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Rd, Xi'an, 710032, Shaanxi, China
| | - Zonghang Liu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Tianhao Gu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Jianan Zhang
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Tengyun Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Qianzheng Zhou
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Zhongyuan He
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Bowen Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Fengyuan Li
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Zekuan Xu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China
| | - Hao Xu
- Department of General Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medical University, Nanjing, 211166, China.
| |
Collapse
|
14
|
Zhao L, Wang Y, Sun X, Zhang X, Simone N, He J. ELK1/MTOR/S6K1 Pathway Contributes to Acquired Resistance to Gefitinib in Non-Small Cell Lung Cancer. Int J Mol Sci 2024; 25:2382. [PMID: 38397056 PMCID: PMC10888698 DOI: 10.3390/ijms25042382] [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: 12/06/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
The development of acquired resistance to small molecule tyrosine kinase inhibitors (TKIs) targeting epidermal growth factor receptor (EGFR) signaling has hindered their efficacy in treating non-small cell lung cancer (NSCLC) patients. Our previous study showed that constitutive activation of the 70 kDa ribosomal protein S6 kinase 1 (S6K1) contributes to the acquired resistance to EGFR-TKIs in NSCLC cell lines and xenograft tumors in nude mice. However, the regulatory mechanisms underlying S6K1 constitutive activation in TKI-resistant cancer cells have not yet been explored. In this study, we recapitulated this finding by taking advantage of a gefitinib-resistant patient-derived xenograft (PDX) model established through a number of passages in mice treated with increasing doses of gefitinib. The dissociated primary cells from the resistant PDX tumors (PDX-R) displayed higher levels of phosphor-S6K1 expression and were resistant to gefitinib compared to cells from passage-matched parental PDX tumors (PDX-P). Both genetic and pharmacological inhibition of S6K1 increased sensitivity to gefitinib in PDX-R cells. In addition, both total and phosphorylated mechanistic target of rapamycin kinase (MTOR) levels were upregulated in PDX-R and gefitinib-resistant PC9G cells. Knockdown of MTOR by siRNA decreased the expression levels of total and phosphor-S6K1 and increased sensitivity to gefitinib in PDX-R and PC9G cells. Moreover, a transcription factor ELK1, which has multiple predicted binding sites on the MTOR promoter, was also upregulated in PDX-R and PC9G cells, while the knockdown of ELK1 led to decreased expression of MTOR and S6K1. The chromatin immunoprecipitation (ChIP)-PCR assay showed the direct binding between ELK1 and the MTOR promoter, and the luciferase reporter assay further indicated that ELK1 could upregulate MTOR expression through tuning up its transcription. Silencing ELK1 via siRNA transfection improved the efficacy of gefitinib in PDX-R and PC9G cells. These results support the notion that activation of ELK1/MTOR/S6K1 signaling contributes to acquired resistance to gefitinib in NSCLC. The findings in this study shed new light on the mechanism for acquired EGFR-TKI resistance and provide potential novel strategies by targeting the ELK1/MTOR/S6K1 pathway.
Collapse
Affiliation(s)
- Lei Zhao
- Department of Pathology and Genomic Medicine, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (L.Z.); (Y.W.); (X.S.)
| | - Yifang Wang
- Department of Pathology and Genomic Medicine, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (L.Z.); (Y.W.); (X.S.)
| | - Xin Sun
- Department of Pathology and Genomic Medicine, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (L.Z.); (Y.W.); (X.S.)
| | - Xiujuan Zhang
- Department of Medicine, Center for Translational Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Nicole Simone
- Department of Radiation Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Jun He
- Department of Pathology and Genomic Medicine, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; (L.Z.); (Y.W.); (X.S.)
| |
Collapse
|
15
|
Pellizzari S, Bhat V, Athwal H, Cescon DW, Allan AL, Parsyan A. PLK4 as a potential target to enhance radiosensitivity in triple-negative breast cancer. Radiat Oncol 2024; 19:24. [PMID: 38365710 PMCID: PMC10873955 DOI: 10.1186/s13014-024-02410-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/18/2024] [Indexed: 02/18/2024] Open
Abstract
Radioresistance is one of the barriers to developing more effective therapies against the most aggressive, triple-negative, breast cancer (TNBC) subtype. In our previous studies, we showed that inhibition of Polo-like Kinase 4 (PLK4) by a novel drug, CFI-400945 significantly enhances the anticancer effects of radiotherapy (RT) compared to single treatment alone. Here we further investigate the role of PLK4 in enhancing radiation effects in TNBC and explore mechanisms of PLK4 inhibition and radiation combinatorial antiproliferative effects. To assess cellular proliferation in response to treatments, we used colony formation assays in TNBC cell lines and patient-derived organoids (PDOs). Downregulation of PLK4 expression was achieved using siRNA silencing in TNBC cell lines. Immunofluorescence against centrin was used to assess the alteration of centriole amplification in response to treatments. We observed that inhibition of PLK4 by CFI-400945 or Centrinone B or its downregulation by siRNA, when combined with RT, resulted in a significant increase in antiproliferative effect in TNBC cells lines and PDOs compared to untreated or single-treated cells. Anticancer synergy was observed using a response matrix in PDOs treated with CFI-400945 and RT. We show that the overamplification of centrioles might be involved in the combined antiproliferative action of RT and PLK4 inhibition. Our data suggest that PLK4 is a promising target for enhancing the anticancer effects of RT in TNBC that, at least in part, is modulated by the overamplification of centrioles. These results support further mechanistic and translational studies of anti-PLK4 agents and RT as an anticancer combination treatment strategy.
Collapse
Grants
- Ontario Graduate Scholarship (OGS)
- Breast Cancer Society of Canada
- Western Postdoctoral Fellowship (Western University)
- London Regional Cancer Program Catalyst Grant
- Young Investigator Startup Grant, Department of Surgery, Western University and the London Regional Cancer Program Catalyst Grant for Translational Cancer Research, Western University (London, ON)
- Cancer Research Society (CRS) and Canadian Institutes of Health Research (CIHR)/Institute of Cancer Research (ICR), Operating Grants 2022 Competition, Targeted Funding Opportunity
- Clinician Scientist Award, Department of Surgery, Western University, and the Academic Medical Organization of Southwestern Ontario (AMOSO) Opportunities Fund (London, ON)
Collapse
Affiliation(s)
- Sierra Pellizzari
- Department of Anatomy and Cell Biology, Western University, N6A 3K7, London, ON, Canada
| | - Vasudeva Bhat
- Department of Anatomy and Cell Biology, Western University, N6A 3K7, London, ON, Canada
- London Regional Cancer Program, London Health Sciences Centre and London Health Sciences, Centre Research Inc, N6A 5W9, London, ON, Canada
| | - Harjot Athwal
- Department of Anatomy and Cell Biology, Western University, N6A 3K7, London, ON, Canada
| | - David W Cescon
- Princess Margaret Cancer Centre, University Health Network, University of Toronto, M5G 2M9, Toronto, ON, Canada
- Department of Medical Oncology and Hematology, University of Toronto, M5G 2C1, Toronto, ON, Canada
| | - Alison L Allan
- Department of Anatomy and Cell Biology, Western University, N6A 3K7, London, ON, Canada
- London Regional Cancer Program, London Health Sciences Centre and London Health Sciences, Centre Research Inc, N6A 5W9, London, ON, Canada
- Department of Oncology, Western University, N6A 3K7, London, ON, Canada
| | - Armen Parsyan
- Department of Anatomy and Cell Biology, Western University, N6A 3K7, London, ON, Canada.
- London Regional Cancer Program, London Health Sciences Centre and London Health Sciences, Centre Research Inc, N6A 5W9, London, ON, Canada.
- Department of Oncology, Western University, N6A 3K7, London, ON, Canada.
- Department of Surgery, St Joseph's Health Care and London Health Sciences Centre, Western University, N6A 4V2, London, ON, Canada.
| |
Collapse
|
16
|
Loncová B, Fabová Z, Mondočková V, Omelka R, Harrath AH, Sirotkin AV. Inhibition of vinculin activity has an adverse effect on porcine ovarian cells. Exp Cell Res 2024; 435:113950. [PMID: 38309674 DOI: 10.1016/j.yexcr.2024.113950] [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: 11/27/2023] [Revised: 01/14/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
The existing knowledge of the involvement of vinculin (VCL) in the control of ovarian cell functions is insufficient. To understand the role of VCL in the control of basic porcine ovarian granulosa cell functions, we decreased VCL activity by small interfering RNA (VCL siRNA). The expression of VCL, accumulation of VCL protein, cell viability, proliferation (accumulation of PCNA and cyclin B1), proportion of proliferative active cells, apoptosis (accumulation of bax, caspase 3, p53, antiapoptotic marker bcl2, and bax/bcl-2 ratio), DNA fragmentation, and release of steroid hormones and IGF-I were analyzed by RT‒qPCR, Trypan blue exclusion test, quantitative immunocytochemistry, XTT assay, TUNEL assay, and ELISA. The suppression of VCL activity inhibited cell viability, the accumulation of the proliferation-related proteins PCNA and cyclin B1, the antiapoptotic protein bcl2, and the proportion of proliferative active cells. Moreover, VCL siRNA inhibited the release of progesterone, estradiol, and IGF-1. VCL siRNA increased the proportion of the proapoptotic proteins bax, caspase 3, p53, the proportion of DNA fragmented cells, and stimulated testosterone release. Taken together, the present study is the first evidence that inhibition of VCL suppresses porcine granulosa cell functions. Moreover, the results suggest that VCL can be a potent physiological stimulator of ovarian functions.
Collapse
Affiliation(s)
- Barbora Loncová
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Slovakia.
| | - Zuzana Fabová
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Slovakia
| | - Vladimíra Mondočková
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Slovakia
| | - Radoslav Omelka
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Slovakia
| | - Abdel Halim Harrath
- Department of Zoology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Alexander V Sirotkin
- Department of Zoology and Anthropology, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, Slovakia
| |
Collapse
|
17
|
Cho W, Oh H, Choi SW, Abd El-Aty AM, Yeşilyurt F, Jeong JH, Jung TW. Musclin Mitigates the Attachment of HUVECs to THP-1 Monocytes in Hyperlipidemic Conditions through PPARα/HO-1-Mediated Attenuation of Inflammation. Inflammation 2024; 47:1-12. [PMID: 37737929 DOI: 10.1007/s10753-023-01904-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/31/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
Musclin, a myokine, undergoes modulation during exercise and has demonstrated anti-inflammatory effects in cardiomyocytes and glomeruli. However, its role in atherosclerotic responses remains unclear. This study aimed to explore the impact of musclin on inflammatory responses and the interaction between endothelial cells and monocytes under hyperlipidemic conditions. The attachment levels of THP-1 monocytes on cultured HUVECs were examined. Inflammation and the expression of cell adhesion molecules were also evaluated. To explore the molecular mechanisms of musclin, PPARα or heme oxygenase 1 (HO-1) siRNA transfection was performed in HUVECs. The results revealed that treatment with recombinant musclin effectively suppressed the attachment of palmitate-induced HUVECs to THP-1 cells and reduced the expression of cell adhesion proteins (ICAM-1, VCAM-1, and E-selectin) in HUVECs. Furthermore, musclin treatment ameliorated the expression of inflammation markers (phosphorylated NFκB and IκB) in both HUVECs and THP-1 monocytes, as well as the release of TNFα and MCP-1 from HUVECs and THP-1 monocytes. Notably, musclin treatment augmented the expression levels of PPARα and HO-1. However, when PPARα or HO-1 siRNA was employed, the beneficial effects of musclin on inflammation, cell attachment, and adhesion molecule expression were abolished. These findings indicate that musclin exerts anti-inflammatory effects via the PPARα/HO-1 pathway, thereby mitigating the interaction between endothelial cells and monocytes. This study provides evidence supporting the important role of musclin in ameliorating obesity-related arteriosclerosis and highlights its potential as a therapeutic agent for treating arteriosclerosis.
Collapse
Affiliation(s)
- Wonjun Cho
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul, 156-756, Republic of Korea
| | - Heeseung Oh
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul, 156-756, Republic of Korea
| | - Sung Woo Choi
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul, 156-756, Republic of Korea
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, 25240, Turkey
| | - Fatma Yeşilyurt
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, 25240, Turkey
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul, 156-756, Republic of Korea
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, Seoul, Republic of Korea
| | - Tae Woo Jung
- Department of Pharmacology, College of Medicine, Chung-Ang University, 221, Heuksuk-dong, Dongjak-gu, Seoul, 156-756, Republic of Korea.
| |
Collapse
|
18
|
Velásquez SY, Baslar GE, Schulte J, Fuderer T, Lindner HA, Coulibaly A. Downregulation of Hypoxia Inducible Factor-1α in Primary Human Natural Killer Cells Using Small Interfering RNA Delivery with ExPERT ATx by MaxCyte. Curr Protoc 2024; 4:e987. [PMID: 38327104 DOI: 10.1002/cpz1.987] [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] [Indexed: 02/09/2024]
Abstract
Natural killer (NK) cells are innate cytokine-producing and cytolytic effector lymphocytes. Their function is responsive to environmental factors, e.g., hypoxia, a frequent feature of inflamed tissues. Such responses require that the NK cells up-regulate HIF-1α (hypoxia inducible factor-1α), the major mediator of cellular responses to hypoxia that affects cell survival as well as immune responses. Thus, a major approach to the study of NK cell effector function under hypoxic conditions involves the ability to regulate HIF-1α levels in primary human NK cells. One difficulty with this approach, however, is that NK cells are difficult-to-transfect cells and common transfection methods, including electroporation or lipofection, suffer from variable transfection efficiency and cell viability. Moreover, the detection of HIF-1α is technically challenging because of the rapid degradation of the protein under normoxic conditions. Here, using the commercially available ExPERT ATx by MaxCyte, we report a workflow for the reliable delivery of small interfering RNA (siRNA) for targeting HIF-1α expression in primary human NK cells. We further provide a protocol for the detection of HIF-1α by immunoblot analysis demonstrating its efficient downregulation by siRNA. © 2024 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Isolation of natural killer cells from human peripheral blood mononuclear cells Basic Protocol 2: Delivery of non-coding small interfering RNA and HIF-1α targeting siRNA into natural killer cells using ExPERT ATx Basic Protocol 3: Assessing the downregulation of HIF-1α protein using immunoblot analysis Support Protocol 1: Exemplary assessment of transfection efficiency using fluorescently labeled non-targeting siRNA Support Protocol 2: Exemplary assessment of NK cell viability 20 hr post-transfection Support Protocol 3: Exemplary assessment of HIF-1α knockdown using immunoblot analysis.
Collapse
Affiliation(s)
- Sonia Y Velásquez
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| | - Gizem E Baslar
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| | - Jutta Schulte
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| | - Tanja Fuderer
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| | - Holger A Lindner
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| | - Anna Coulibaly
- Department of Anesthesiology and Surgical Intensive Care Medicine, Mannheim Institute of Innate Immunoscience (MI3), Heidelberg University, Mannheim, Germany
| |
Collapse
|
19
|
Pavlovic ZJ, Hsin-Yu Pai A, Hsiao TT, Yen CF, Alhasan H, Ozmen A, New EP, Guo X, Imudia AN, Guzeloglu-Kayisli O, Lockwood CJ, Kayisli UA. Dysregulated expression of GATA2 and GATA6 transcription factors in adenomyosis: implications for impaired endometrial receptivity. F S Sci 2024; 5:92-103. [PMID: 37972693 DOI: 10.1016/j.xfss.2023.11.003] [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: 08/06/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE To study the effect of adenomyosis on the localized expression of the GATA binding proteins 2 and 6 (GATA2 and GATA6) zinc-finger transcription factors that are involved in proliferation of hematopoietic and endocrine cell lineages, cell differentiation, and organogenesis, potentially leading to impaired endometrial implantation. DESIGN Laboratory based experimental study. SETTING Academic hospital and laboratory. PATIENTS Human endometrial stromal cells (HESCs) of reproductive age patients, 18-45 years of age, with adenomyosis were compared with patients with no pathology and leiomyomatous uteri as controls (n = 4 in each group, respectively). Additionally, midsecretory phase endometrial sections were obtained from patients with adenomyosis and control patients with leiomyoma (n = 8 in each group, respectively). INTERVENTIONS GATA2 and GATA6 immunohistochemistry and H-SCORE were performed on the midsecretory phase endometrial sections from adenomyosis and leiomyoma control patients (n = 8 each, respectively). Control and adenomyosis patient HESC cultures were treated with placebo or 10-8 M estradiol (E2), or decidualization media (EMC) containing 10-8 M E2, 10-7 M medroxyprogesterone acetate, and 5 × 10-5 M cAMP for 6 and 10 days. Additionally, control HESC cultures (n = 4) were transfected with scrambled small interfering RNA (siRNA) (control) or GATA2-specific siRNAs for 6 days while adenomyosis HESC cultures (n = 4) were transfected with human GATA2 expression vectors to silence or induce GATA2 overexpression. MAIN OUTCOME MEASURES Immunohistochemistry was performed to obtain GATA2 and GATA6 H-SCORES in adenomyosis vs. control patient endometrial tissue. Expression of GATA2, GATA6, insulin-like growth factor-binding protein 1 (IGFBP1), prolactin (PRL), progesterone receptor (PGR), estrogen receptor 1 (ESR1), leukemia inhibitory factor (LIF), and Interleukin receptor 11 (IL11R) messenger RNA (mRNA) levels were analyzed using by qPCR with normalization to ACTB. Silencing and overexpression experiments also had the corresponding mRNA levels of the above factors analyzed. Western blot analysis was performed on isolated proteins from transfection experiments. RESULTS Immunohistochemistry revealed an overall fourfold lower GATA2 and fourfold higher GATA6 H-SCORE level in the endometrial stromal cells of patients with adenomyosis vs. controls. Decidual induction with EMC resulted in significantly lower GATA2, PGR, PRL and IGFBP1 mRNA levels in HESC cultures from patients with adenomyosis patient vs. controls. Leukemia inhibitory factor and IL11R mRNA levels were also significantly dysregulated in adenomyosis HESCs compared with controls. . Silencing of GATA2 expression in control HESCs induced an adenomyosis-like state with significant reductions in GATA2, increases in GATA6 and accompanying aberrations in PGR, PRL, ESR1 and LIF levels. Conversely, GATA2 overexpression via vector in adenomyosis HESCs caused partial restoration of the defective decidual response with significant increases in GATA2, PGR, PRL and LIF expression. CONCLUSION In-vivo and in-vitro experiment results demonstrate that there is an overall inverse relationship between endometrial GATA2 and GATA6 levels in patients with adenomyosis who have diminished GATA2 levels and concurrently elevated GATA6 levels. Additionally, lower GATA2 and higher GATA6 levels, together with aberrant levels of important receptors and implantation factors, such as ESR1, PGR, IGFBP1, PRL, LIF, and IL11R mRNA in HESCs from patients with adenomyosis or GATA2-silenced control HESCs, support impaired decidualization. These effects were partially restored with GATA2 overexpression in adenomyosis HESCs, demonstrating a potential therapeutic target.
Collapse
Affiliation(s)
- Zoran Jason Pavlovic
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida.
| | - Angel Hsin-Yu Pai
- Department of Obstetrics and Gynecology, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Tzu-Ti Hsiao
- Department of Obstetrics and Gynecology, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Chih-Feng Yen
- Department of Obstetrics and Gynecology, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan
| | - Hasan Alhasan
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Asli Ozmen
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Erika P New
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Xiaofang Guo
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Anthony N Imudia
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida; Shady Grove Fertility, Tampa, Florida
| | - Ozlem Guzeloglu-Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Charles J Lockwood
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Umit A Kayisli
- Department of Obstetrics and Gynecology, Morsani College of Medicine, University of South Florida, Tampa, Florida
| |
Collapse
|
20
|
Wu J, Wang C, Cui X, Liu L, Wang L, Wang J, Xue X, Dang T. MicroRNA-128 acts as a suppressor in the progression of gastrointestinal stromal tumor by targeting B-lymphoma Mo-MLV insertion region 1. Clin Transl Oncol 2024; 26:363-374. [PMID: 38103120 DOI: 10.1007/s12094-023-03354-8] [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] [Received: 11/24/2022] [Accepted: 01/11/2023] [Indexed: 12/17/2023]
Abstract
INTRODUCTION The critical role of microRNA-128 (miR-128) in gastrointestinal-related diseases has been documented. In the current study, we tried to clarify the specific role miR-128 in gastrointestinal stromal tumor (GIST) and the underlying mechanism. METHODS Differentially expressed genes in GIST were identified following bioinformatics analysis. Then, expression patterns of miR-128 and B-lymphoma Mo-MLV insertion region 1 (BMI-1) in clinical tissue samples and cell lines were characterized, followed by validation of their correlation. GIST-T1 cells were selected and transfected with different mimic, inhibitor, or siRNA plasmids, after which the biological functions were assayed. RESULTS We identified low miR-128 and high BMI-1 expression in GIST tissues of 78 patients and 4 GIST cell lines. Ectopic expression of miR-128 or silencing of BMI-1 suppressed the malignant potentials of GIST-T1 cells. As a target of miR-128, BMI-1 re-expression could partly counteract the suppressive effect of miR-128 on the malignancy of GIST-T1 cells. CONCLUSION Our study provided evidence that miR-128-mediated silencing of BMI-1 could prevent malignant progression of GIST, highlighting a promising anti-tumor target for combating GIST.
Collapse
Affiliation(s)
- Jinbao Wu
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Changjuan Wang
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Xia Cui
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Lin Liu
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Lu Wang
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Jing Wang
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Xiaohui Xue
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China
| | - Tong Dang
- Inner Mongolia Institute of Digestive Diseases, The Second Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, No. 30, Hudemulin Street, Qingshan District, Baotou, 014030, Inner Mongolia Autonomous Region, People's Republic of China.
| |
Collapse
|
21
|
Zhu H, Ye J, Wu Y, Cheng Y, Su M, Dai Q, Han Y, Pan J, Wu Z, Chen C, Qiu C, Li W, Liu G, Chu C. A Synergistic Therapy With Antioxidant and Anti-VEGF: Toward its Safe and Effective Elimination for Corneal Neovascularization. Adv Healthc Mater 2024; 13:e2302192. [PMID: 38018632 DOI: 10.1002/adhm.202302192] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/26/2023] [Indexed: 11/30/2023]
Abstract
Corneal neovascularization (CNV) is one of the leading causes of blindness in the world. In clinical practice; however, it remains a challenge to achieve a noninvasive and safe treatment. Herein, a biocompatible shell with excellent antioxidant and antivascularity is prepared by co-assembly of epigallocatechin gallate/gallic acid and Cu (II). After loading glucose oxidase (GOx) inside, the shell is modified with dimeric DPA-Zn for codelivering vascular endothelial growth factor (VEGF) small interfering RNA (VEGF-siRNA). Meanwhile, the Arg-Gly-Asp peptide (RGD) peptide-engineered cell membranes coating improves angiogenesis-targeting and is biocompatible for the multifunctional nanomedicine (CEGs/RGD). After eye drops administration, CEGs/RGD targets enrichment in neovascularization and CEGs NPs enter cells. Then, the inner GOx consumes glucose with a decrease in local pH, which in turn leads to the release of EGCE and VEGF-siRNA. As a result, the nanomedicines significantly reduce angiogenesis and inhibit CNV formation through synergistic effect of antioxidant and antivascular via down-regulation of cluster of differentiation 31 and VEGF. The nanomedicine represents a safe and efficient CNV treatment through the combined effect of antioxidant/gene, which provides important theoretical and clinical significance.
Collapse
Affiliation(s)
- Huimin Zhu
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Jinfa Ye
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Yiming Wu
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Yuhang Cheng
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Min Su
- Department of Pharmacy, Xiamen Medical College, Xiamen, 361023, China
| | - Qixuan Dai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yun Han
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Jintao Pan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhenyu Wu
- Department of Pharmacy, Xiamen Medical College, Xiamen, 361023, China
| | - Chuan Chen
- Department of Pharmacy, Xiamen Medical College, Xiamen, 361023, China
| | - Chenyue Qiu
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Wei Li
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
| | - Gang Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Shen Zhen Research Institute of Xiamen University, Xiamen University, Shenzhen, 518057, China
| | - Chengchao Chu
- Xiamen University Affiliated Xiamen Eye Center, Eye Institute of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, China
- Shen Zhen Research Institute of Xiamen University, Xiamen University, Shenzhen, 518057, China
| |
Collapse
|
22
|
Lee J, Hong SW, Kim MJ, Lim YM, Moon SJ, Kwon H, Park SE, Rhee EJ, Lee WY. Inhibition of Sodium-Glucose Cotransporter-2 during Serum Deprivation Increases Hepatic Gluconeogenesis via the AMPK/AKT/FOXO Signaling Pathway. Endocrinol Metab (Seoul) 2024; 39:98-108. [PMID: 38171209 PMCID: PMC10901661 DOI: 10.3803/enm.2023.1786] [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: 07/24/2023] [Revised: 09/25/2023] [Accepted: 10/17/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGRUOUND Sodium-dependent glucose cotransporter 2 (SGLT2) mediates glucose reabsorption in the renal proximal tubules, and SGLT2 inhibitors are used as therapeutic agents for treating type 2 diabetes mellitus. This study aimed to elucidate the effects and mechanisms of SGLT2 inhibition on hepatic glucose metabolism in both serum deprivation and serum supplementation states. METHODS Huh7 cells were treated with the SGLT2 inhibitors empagliflozin and dapagliflozin to examine the effect of SGLT2 on hepatic glucose uptake. To examine the modulation of glucose metabolism by SGLT2 inhibition under serum deprivation and serum supplementation conditions, HepG2 cells were transfected with SGLT2 small interfering RNA (siRNA), cultured in serum-free Dulbecco's modified Eagle's medium for 16 hours, and then cultured in media supplemented with or without 10% fetal bovine serum for 8 hours. RESULTS SGLT2 inhibitors dose-dependently decreased hepatic glucose uptake. Serum deprivation increased the expression levels of the gluconeogenesis genes peroxisome proliferator-activated receptor gamma co-activator 1 alpha (PGC-1α), glucose 6-phosphatase (G6pase), and phosphoenolpyruvate carboxykinase (PEPCK), and their expression levels during serum deprivation were further increased in cells transfected with SGLT2 siRNA. SGLT2 inhibition by siRNA during serum deprivation induces nuclear localization of the transcription factor forkhead box class O 1 (FOXO1), decreases nuclear phosphorylated-AKT (p-AKT), and p-FOXO1 protein expression, and increases phosphorylated-adenosine monophosphate-activated protein kinase (p-AMPK) protein expression. However, treatment with the AMPK inhibitor, compound C, reversed the reduction in the protein expression levels of nuclear p- AKT and p-FOXO1 and decreased the protein expression levels of p-AMPK and PEPCK in cells transfected with SGLT2 siRNA during serum deprivation. CONCLUSION These data show that SGLT2 mediates glucose uptake in hepatocytes and that SGLT2 inhibition during serum deprivation increases gluconeogenesis via the AMPK/AKT/FOXO1 signaling pathway.
Collapse
Affiliation(s)
- Jinmi Lee
- Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seok-Woo Hong
- Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Min-Jeong Kim
- Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yu-Mi Lim
- Institute of Medical Research, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sun Joon Moon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyemi Kwon
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Se Eun Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun-Jung Rhee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won-Young Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| |
Collapse
|
23
|
Wang BR, Han JB, Jiang Y, Xu S, Yang R, Kong YG, Tao ZZ, Hua QQ, Zou Y, Chen SM. CENPN suppresses autophagy and increases paclitaxel resistance in nasopharyngeal carcinoma cells by inhibiting the CREB-VAMP8 signaling axis. Autophagy 2024; 20:329-348. [PMID: 37776538 PMCID: PMC10813569 DOI: 10.1080/15548627.2023.2258052] [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: 01/25/2023] [Accepted: 09/07/2023] [Indexed: 10/02/2023] Open
Abstract
Chemotherapeutic resistance is one of the most common reasons for poor prognosis of patients with nasopharyngeal carcinoma (NPC). We found that CENPN can promote the growth, proliferation and apoptosis resistance of NPC cells, but its relationship with chemotherapeutic resistance in NPC is unclear. Here we verified that the CENPN expression level in NPC patients was positively correlated with the degree of paclitaxel (PTX) resistance and a poor prognosis through analysis of clinical cases. VAMP8 expression was significantly increased after knockdown of CENPN by transcriptome sequencing. We found in cell experiments that CENPN inhibited macroautophagy/autophagy and VAMP8 expression and significantly increased PTX resistance. Overexpression of CENPN reduced the inhibitory effects of PTX on survival, cell proliferation, cell cycle progression and apoptosis resistance in NPC cells by inhibiting autophagy. In turn, knockdown of CENPN can affect the phenotype of NPC cells by increasing autophagy to achieve PTX sensitization. Sequential knockdown of CENPN and VAMP8 reversed the PTX-sensitizing effect of CENPN knockdown alone. Experiments in nude mice confirmed that knockdown of CENPN can increase VAMP8 expression, enhance autophagy and increase the sensitivity of NPC cells to PTX. Mechanistic studies showed that CENPN inhibited the translocation of p-CREB into the nucleus of NPC cells, resulting in the decreased binding of p-CREB to the VAMP8 promoter, thereby inhibiting the transcription of VAMP8. These results demonstrate that CENPN may be a marker for predicting chemotherapeutic efficacy and a potential target for inducing chemosensitization to agents such as PTX.Abbreviations: 3-MA: 3-methyladenine; ATG5: autophagy related 5; CENPN: centromere protein N; CQ: chloroquine; CREB: cAMP responsive element binding protein; ChIP: chromatin immunoprecipitation assay; IC50: half-maximal inhibitory concentration; LAMP2A: lysosomal associated membrane protein 2A; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; NPC: nasopharyngeal carcinoma; NPG: nasopharyngitis; oeCENPN: overexpressed CENPN; PTX: paclitaxel; RAPA: rapamycin; RNA-seq: transcriptome sequencing; shCENPN: small hairpin RNA expression vector targeting the human CENPN gene; shCENPN-shVAMP8: sequential knockdown targeting the human CENPN gene and VAMP8 gene; shVAMP8: small hairpin RNA expression vector targeting the human VAMP8 gene; TEM: transmission electron microscopy; TIR: tumor inhibitory rate; VAMP8: vesicle associated membrane protein 8.
Collapse
Affiliation(s)
- Bin-Ru Wang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Ji-Bo Han
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Yang Jiang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Rui Yang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Yong-Gang Kong
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Ze-Zhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Qing-Quan Hua
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - You Zou
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P.R. China
| |
Collapse
|
24
|
Luo QQ, Cheng L, Wang B, Chen X, Li WT, Chen SL. ZBTB20 mediates stress-induced visceral hypersensitivity via activating the NF-κB/transient receptor potential channel pathway. Neurogastroenterol Motil 2024; 36:e14718. [PMID: 38009899 DOI: 10.1111/nmo.14718] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 10/27/2023] [Accepted: 11/10/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Psychological stress is a major trigger for visceral hypersensitivity (VH) in irritable bowel syndrome. The zinc finger protein ZBTB20 (ZBTB20) is implicated in somatic nociception via modulating transient receptor potential (TRP) channels, but its role in the development of VH is unclear. This study aimed to investigate the role of ZBTB20/TRP channel axis in stress-induced VH. METHODS Rats were subjected to water avoidance stress (WAS) for 10 consecutive days. Small interfering RNA (siRNA) targeting ZBTB20 was intrathecally administered. Inhibitors of TRP channels, stress hormone receptors, and nuclear factor kappa-B (NF-κB) were administered. Visceromotor response to colorectal distension was recorded. Dorsal root ganglia (DRGs) were dissected for Western blot, coimmunoprecipitation, and chromatin immunoprecipitation. The DRG-derived neuron cell line was applied for specific research. KEY RESULTS WAS-induced VH was suppressed by the inhibitor of TRPV1, TRPA1, or TRPM8, with enhanced expression of these channels in L6-S2 DRGs. The inhibitor of glucocorticoid receptor or β2-adrenergic receptor counteracted WAS-induced VH and TRP channel expression. Concurrently, WAS-induced stress hormone-dependent ZBTB20 expression and NF-κB activation in DRGs. Intrathecally injected ZBTB20 siRNA or an NF-κB inhibitor repressed WAS-caused effect. In cultured DRG-derived neurons, stress hormones promoted nuclear translocation of ZBTB20, which preceded p65 nuclear translocation. And, ZBTB20 siRNA suppressed stress hormone-caused NF-κB activation. Finally, WAS enhanced p65 binding to the promoter of TRPV1, TRPA1, or TRPM8 in rat DRGs. CONCLUSIONS AND INFERENCES ZBTB20 mediates stress-induced VH via activating NF-κB/TRP channel pathway in nociceptive sensory neurons.
Collapse
Affiliation(s)
- Qing-Qing Luo
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
- Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Li Cheng
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Bo Wang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xin Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Wen-Ting Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Sheng-Liang Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| |
Collapse
|
25
|
Cai Y, He C, Dai Y, Zhang D, Lv G, Lu H, Chen G. Spinal interleukin-24 contributes to neuropathic pain after peripheral nerve injury through interleukin-20 receptor2 in mice. Exp Neurol 2024; 372:114643. [PMID: 38056582 DOI: 10.1016/j.expneurol.2023.114643] [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: 10/25/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Neuroinflammation is critically involved in nerve injury-induced neuropathic pain, characterized by local and systemic increased levels of proinflammatory cytokines. Interleukin-24 (IL-24), a key member of the IL-10 family, has been extensively studied for its therapeutic potential in various diseases, including cancer, autoimmune disorders, and bacterial infections, but whether it is involved in the regulation of neuropathic pain caused by peripheral nerve injury (PNI) has not been well established. In this study, we reported that spared nerve injury (SNI) induced a significant upregulation of IL-24 in fibroblasts, neurons, and oligodendrocyte precursor cells (OPCs, also called NG2-glia) in the affected spinal dorsal horns (SDHs), as well as dorsal root ganglions (DRGs). We also found that tumor necrosis factor α (TNF-α) induced the transcriptional expression of IL-24 in cultured fibroblasts, neurons, and NG2-glia; in addition, astrocytes, microglia, and NG2-glia treated with TNF-α exhibited a prominent increase in interleukin-20 receptor 2 (IL-20R2) expression. Furthermore, we evaluated the ability of IL-24 and IL-20R2 to attenuate pain in preclinical models of neuropathic pain. Intrathecal (i.t.) injection of IL-24 neutralizing antibody or IL-20R2 neutralizing antibody could effectively alleviate mechanical allodynia and thermal hyperalgesia after PNI. Similarly, intrathecal injection of IL-24 siRNA or IL-20R2 siRNA also alleviated mechanical allodynia after SNI. The inhibition of IL-24 reduced SNI-induced proinflammatory cytokine (IL-1β and TNF-α) production and increased anti-inflammatory cytokine (IL-10) production. Meanwhile, the inhibition of IL-20R2 also decreased IL-1β mRNA expression after SNI. Collectively, our findings revealed that IL-24/IL-20R might contribute to neuropathic pain through inflammatory response. Therefore, targeting IL-24 could be a promising strategy for treating neuropathic pain induced by PNI.
Collapse
Affiliation(s)
- Yunyun Cai
- Center for Basic Medical Research, Medical School of Nantong University, Co-innovation Center of Neuroregeneration, Nantong 226001, Jiangsu Province, China
| | - Cheng He
- Department of Human Anatomy, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Yuan Dai
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Dongmei Zhang
- Department of Rehabilitation Medicine, Affiliated Hospital 2 of Nantong University, Nantong 226001, Jiangsu Province, China; Jiangsu Provincial Medical Key Discipline (Laboratory) Cultivation Unit of Immunology, Nantong First People's Hospital, Nantong 226001, Jiangsu Province, China
| | - Guangming Lv
- Department of Human Anatomy, Medical School of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Hongjian Lu
- Department of Rehabilitation Medicine, Affiliated Hospital 2 of Nantong University, Nantong 226001, Jiangsu Province, China; Jiangsu Provincial Medical Key Discipline (Laboratory) Cultivation Unit of Immunology, Nantong First People's Hospital, Nantong 226001, Jiangsu Province, China; Medical Research Center, Affiliated Hospital 2 of Nantong University, Nantong 226001, Jiangsu Province, China.
| | - Gang Chen
- Center for Basic Medical Research, Medical School of Nantong University, Co-innovation Center of Neuroregeneration, Nantong 226001, Jiangsu Province, China; Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China.
| |
Collapse
|
26
|
Liu C, Ji J, Li C. Cucurbitacin B Inhibits the Malignancy of Esophageal Carcinoma through the KIF20A/JAK/STAT3 Signaling Pathway. Am J Chin Med 2024; 52:275-289. [PMID: 38291583 DOI: 10.1142/s0192415x24500125] [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] [Indexed: 02/01/2024]
Abstract
This study intends to explore the effects of Cucurbitacin B (CuB) and KIF20A on esophageal carcinoma (ESCA). Data were downloaded from the Cancer Genome Atlas (TCGA) database. The expression properties of KIF20A have been confirmed by GEPIA and ualcan from TCGA. The expression of KIF20A was determined using western blotting in ECA109 and KYSE150 cells after transfection with KIF20A, KIF20A siRNA, or numerical control siRNA (si-NC). Then, different concentrations of CuB were used to treat ECA109 and KYSE150 cells. CCK-8 and colony formation assays were used to measure cell viability, and a Transwell assay was utilized to assess cell migration and invasion ability. N-cadherin, E-cadherin, snail, p-Janus kinase 2 (JAK2), JAK2, p-signal transducer and activator of transcription 3 (STAT3), and STAT3 expression levels were evaluated using western blot. KIF20A was higher expressed in ESCA than in normal cells, and its overexpression was associated with squamous cell carcinoma, TNM stage, and lymph nodal metastasis of ESCA patients. In ECA109 and KYSE150 cells, increased KIF20A facilitated cell proliferation, migration, and invasion, whereas the knockdown of KIF20A can reverse these effects with N-cadherin. Snail expression diminished and E-cadherin increased. Similarly, CuB treatment could inhibit cell proliferation, migration, and invasion concentration dependently. Furthermore, KIF20A accelerated the expression of p-JAK2 and p-STAT3, while the application of CuB inhibited KIF20A expression and attenuated the activation of the JAK/STAT3 pathway. These findings revealed that CuB could inhibit the growth, migration, and invasion of ESCA through downregulating the KIF20A/JAK/STAT3 signaling pathway, and CuB could serve as an essential medicine for therapeutic intervention.
Collapse
Affiliation(s)
- Chao Liu
- Department of Thoracic Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Jiangsu 223001, P. R. China
| | - Jian Ji
- Department of Thoracic Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Jiangsu 223001, P. R. China
| | - Chenglin Li
- Department of Thoracic Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Jiangsu 223001, P. R. China
| |
Collapse
|
27
|
He X, Chang Z, Chen F, Zhang W, Sun M, Shi T, Liu J, Chen P, Zhang K, Guan S, Zhao Z, Li M, Dong WF, Shao D, Yang C. Engineering a biomimetic system for hepatocyte-specific RNAi treatment of non-alcoholic fatty liver disease. Acta Biomater 2024; 174:281-296. [PMID: 37951519 DOI: 10.1016/j.actbio.2023.10.038] [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: 07/20/2023] [Revised: 10/10/2023] [Accepted: 10/29/2023] [Indexed: 11/14/2023]
Abstract
RNA interference (RNAi) presents great potential against intractable liver diseases. However, the establishment of specific, efficient, and safe delivery systems targeting hepatocytes remains a great challenge. Herein, we described a promising hepatocytes-targeting system through integrating triantennary N-acetylgalactosamine (GalNAc)-engineered cell membrane with biodegradable mesoporous silica nanoparticles, which efficiently and safely delivered siRNA to hepatocytes and silenced the target PCSK9 gene expression for the treatment of non-alcoholic fatty liver disease. Having optimized the GalNAc-engineering strategy, insertion orders, and cell membrane source, we obtained the best-performing GalNAc-formulations allowing strong hepatocyte-specific internalization with reduced Kupffer cell capture, resulting in robust gene silencing and less hepatotoxicity when compared with cationic lipid-based GalNAc-formulations. Consequently, a durable reduction of lipid accumulation and damage was achieved by systemic administering siRNAs targeting PCSK9 in high-fat diet-fed mice, accompanied by displaying desirable safety profiles. Taken together, this GalNAc-engineering biomimetics represented versatile, efficient, and safe carriers for the development of hepatocyte-specific gene therapeutics, and prevention of metabolic diseases. STATEMENT OF SIGNIFICANCE: Compared to MSN@LP-GN3 (MC3-LNP), MSN@CM-GN3 exhibited strong hepatocyte targeting and Kupffer cell escaping, as well as good biocompatibility for safe and efficient siRNA delivery. Furthermore, siPCSK9 delivered by MSN@CM-GN3 reduced both serum and liver LDL-C, TG, TC levels and lipid droplets in HFD-induced mice, resulting in better performance than MSN/siPCSK9@LP-GN3 in terms of lipid-lowering effect and safety profiles. These findings indicated promising advantages of our biomimetic GN3-based systems for hepatocyte-specific gene delivery in chronic liver diseases. Our work addressed the challenges associated with the lower targeting efficiency of cell membrane-mimetic drug delivery systems and the immunogenicity of traditional GalNAc delivery systems. In conclusion, this study provided an effective and versatile approach for efficient and safe gene editing using ligand-integrated biomimetic nanoplatforms.
Collapse
Affiliation(s)
- Xuan He
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhimin Chang
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou 215163, China
| | - Fangman Chen
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou 215163, China.
| | - Wensheng Zhang
- Department of Orthopedics, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Madi Sun
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China
| | - Tongfei Shi
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China
| | - Jie Liu
- Department of Orthopedics, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China
| | - Peiyu Chen
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China
| | - Kunbao Zhang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, China
| | - Shan Guan
- National Engineering Research Center of Immunological Products, The Third Military Medical University, Chongqing 400038, China
| | - Zhibin Zhao
- School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Wen-Fei Dong
- CAS Key Laboratory of Bio Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, Suzhou 215163, China
| | - Dan Shao
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, Guangdong 510006, China; School of Medicine, South China University of Technology, Guangzhou, Guangdong 510006, China.
| | - Chao Yang
- Department of Orthopedics, Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
| |
Collapse
|
28
|
Dabbaghipour R, Khaze Shahgoli V, Safaei S, Amini M, Tabei S, Shanehbandi D, Rahbar Farzam O, Baradaran B, Entezam M. siRNA-mediated downregulation of BATF3 diminished proliferation and induced apoptosis through downregulating c-Myc expression in chronic myelogenous leukemia cells. Mol Biol Rep 2024; 51:100. [PMID: 38217769 DOI: 10.1007/s11033-023-09059-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/21/2023] [Indexed: 01/15/2024]
Abstract
OBJECTIVE Despite considerable improvement in therapeutic approaches to chronic myeloid leukemia (CML) treatment, this malignancy is considered incurable due to resistance. However, investigating the molecular mechanism of CML may give rise to the development of extremely efficient targeted therapies that improve the prognosis of patients. Basic leucine zipper transcription factor ATF-like3 (BATF3), as transcription factor, is considered a key regulator of cellular activities and its function has been evaluated in tumor development and growth in several cancer types. This study aimed to evaluate the potential of the cellular impact of siRNA-mediated downregulation of BATF3 on CML cancer cells through cell proliferation, induction of apoptosis, and cell cycle distribution. MATERIALS AND METHODS The transfection of BATF3 siRNA to K562 CML cells was performed by electroporation device. To measure cellular viability and apoptosis, MTT assay and Annexin V/PI staining were carried out, respectively. Also, cell cycle assay and flow cytometry instrument were applied to assess cell cycle distribution of K562 cells. For more validation, mRNA expression of correlated genes was relatively evaluated by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS The data indicated that siRNA-mediated BATF3 inactivating severely promoted the cell apoptosis. Also, the targeted therapy led to high expression of Caspase-3 gene and Bax/Bcl-2 ratio. Silenced BATF3 also induced cell cycle arrest in phase sub-G1 compared to control. Finally, a noticeable decrement was obtained in c-Myc gene expression through suppression of BATF3 in CML cells. CONCLUSION The findings of this research illustrated the suppression of BATF3 as an effective targeted therapy strategy for CML.
Collapse
Affiliation(s)
- Reza Dabbaghipour
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Khaze Shahgoli
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Cancer and Inflammation Research, Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Sahar Safaei
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amini
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Smb Tabei
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Dariush Shanehbandi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Pharmaceutical Analysis Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Rahbar Farzam
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mona Entezam
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR, Iran.
| |
Collapse
|
29
|
Zhou X, Guo Z, Liu S, Chen Z, Wang Y, Yang R, Li X, Ma K. Transcriptomics and molecular docking reveal the potential mechanism of lycorine against pancreatic cancer. Phytomedicine 2024; 122:155128. [PMID: 37839227 DOI: 10.1016/j.phymed.2023.155128] [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: 04/30/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023]
Abstract
BACKGROUND Pancreatic cancer is an extremely malignant digestive tumor, however, owing to its high drug resistance of pancreatic cancer, the search for more effective anti-pancreatic cancer drugs is urgently needed. Lycorine, an alkaloid of natural plant origin, exerts antitumor effects on a variety of tumors. PURPOSE This study aimed to investigate the therapeutic effect of lycorine on pancreatic cancer and elucidate its potential molecular mechanism. METHODS Two pancreatic cancer cell lines, PANC-1 and BxPC-3, were used to investigate the therapeutic effects of lycorine on pancreatic cancer in vitro using the CCK8 assay, colony formation assay, 5-Ethynyl-2'- deoxyuridine (EdU) incorporation assay, flow cytometry, and western blotting. Transcriptome sequencing and gene set enrichment analysis (GSEA) were used to analyze the differentially expressed genes and pathways after lycorine treatment. Molecular docking, quantitative real-time PCR (qRT-PCR), oil red O staining, small interfering RNA (siRNA) transfection, and other experiments were performed to further validate the differentially expressed genes and pathways. In vivo experiments were conducted to investigate lycorine's inhibitory effects and toxicity on pancreatic cancer using a tumor-bearing mouse model. RESULTS Lycorine inhibited the proliferation of pancreatic cancer cells, caused G2/M phase cycle arrest and induced apoptosis. Transcriptome sequencing and GSEA showed that lycorine inhibition of pancreatic cancer was associated with fatty acid metabolism, and aldehyde dehydrogenase 3A1 (ALDH3A1) was a significantly enriched target in the fatty acid metabolism process. ALDH3A1 expression was significantly upregulated in pancreatic cancer and was closely associated with prognosis. Molecular docking showed that lycorine binds strongly to ALDH3A1. Further studies revealed that lycorine inhibited the fatty acid oxidation (FAO) process in pancreatic cancer cells and induced cell growth inhibition and apoptosis through ALDH3A1. Lycorine also showed significant suppressive effects in tumor-bearing mice. Importantly, it did not result in significant toxicity to liver and kidney of mice, demonstrating its therapeutic potential as a safe antitumor agent. CONCLUSION Lycorine inhibited pancreatic cancer cell proliferation, blocked the cell cycle, and induced apoptosis by targeting ALDH3A1. FAO inhibition was identified for the first time as a possible mechanism for the anticancer effects of lycorine. These findings enrich the theory of targeted therapy for pancreatic cancer, expand our understanding of the pharmacological targets of lycorine, and provide a reference for exploring its natural components.
Collapse
Affiliation(s)
- Xin Zhou
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Physiology, Shihezi University Medical College, Shihezi 832002, China
| | - Zhenli Guo
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Physiology, Shihezi University Medical College, Shihezi 832002, China
| | - Shizhong Liu
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Physiology, Shihezi University Medical College, Shihezi 832002, China
| | - Zhijian Chen
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Pathophysiology, Shihezi University Medical College, Shihezi 832002, China
| | - Yan Wang
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China
| | - Rui Yang
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Physiology, Shihezi University Medical College, Shihezi 832002, China.
| | - Xinzhi Li
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Pathophysiology, Shihezi University Medical College, Shihezi 832002, China.
| | - Ketao Ma
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University Medical College, Shihezi 832002, China; NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, Shihezi 832002, China; Department of Physiology, Shihezi University Medical College, Shihezi 832002, China.
| |
Collapse
|
30
|
Li D, Lian L, Huang L, Gamdzyk M, Huang Y, Doycheva D, Li G, Yu S, Guo Y, Kang R, Tang H, Tang J, Kong L, Zhang JH. Delayed recanalization reduced neuronal apoptosis and neurological deficits by enhancing liver-derived trefoil factor 3-mediated neuroprotection via LINGO2/EGFR/Src signaling pathway after middle cerebral artery occlusion in rats. Exp Neurol 2024; 371:114607. [PMID: 37935323 DOI: 10.1016/j.expneurol.2023.114607] [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: 08/11/2023] [Revised: 10/23/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023]
Abstract
Delayed recanalization at days or weeks beyond the therapeutic window was shown to improve functional outcomes in acute ischemic stroke (AIS) patients. However, the underlying mechanisms remain unclear. Previous preclinical study reported that trefoil factor 3 (TFF3) was secreted by liver after cerebral ischemia and acted a distant neuroprotective factor. Here, we investigated the liver-derived TFF3-mediated neuroprotective mechanism enhanced by delayed recanalization after AIS. A total of 327 male Sprague-Dawley rats and the model of middle cerebral artery occlusion (MCAO) with permanent occlusion (pMCAO) or with delayed recanalization at 3 d post-occlusion (rMCAO) were used. Partial hepatectomy was performed within 5 min after MCAO. Leucine-rich repeat and immunoglobulin-like domain-containing nogo receptor-interacting protein 2 (LINGO2) siRNA was administered intracerebroventricularly at 48 h after MCAO. Recombinant rat TFF3 (rr-TFF3, 30 μg/Kg) or recombinant rat epidermal growth factor (rr-EGF, 100 μg/Kg) was administered intranasally at 1 h after recanalization, and EGFR inhibitor Gefitinib (75 mg/Kg) was administered intranasally at 30 min before recanalization. The evaluation of outcomes included neurobehavior, ELISA, western blot and immunofluorescence staining. TFF3 in hepatocytes and serum were upregulated in a similar time-dependent manner after MCAO. Compared to pMCAO, delayed recanalization increased brain TFF3 levels and attenuated brain damage with the reduction in neuronal apoptosis, infarct volume and neurological deficits. Partial hepatectomy reduced TFF3 levels in serum and ipsilateral brain hemisphere, and abolished the benefits of delayed recanalization on neuronal apoptosis and neurobehavioral deficits in rMCAO rats. Intranasal rrTFF3 treatment reversed the changes associated with partial hepatectomy. Delayed recanalization after MCAO increased the co-immunoprecipitation of TFF3 and LINGO2, as well as expressions of p-EGFR, p-Src and Bcl-2 in the brain. LINGO2 siRNA knockdown or EGFR inhibitor reversed the effects of delayed recanalization on apoptosis and brain expressions of LINGO2, p-EGFR, p-Src and Bcl-2 in rMCAO rats. EGFR activator abolished the deleterious effects of LINGO2 siRNA. In conclusion, our investigation demonstrated for the first time that delayed recanalization may enhance the entry of liver-derived TFF3 into ischemic brain upon restoring blood flow after MCAO, which attenuated neuronal apoptosis and neurological deficits at least in part via activating LINGO2/EGFR/Src pathway.
Collapse
Affiliation(s)
- Dujuan Li
- Department of Pathology, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University, People's Hospital of Henan University), Zhengzhou 450003, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Lifei Lian
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA; Department of Neurosurgery, Loma Linda University, Loma Linda, CA 92354, USA
| | - Marcin Gamdzyk
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yi Huang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Desislava Doycheva
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Gaigai Li
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA; Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shufeng Yu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yong Guo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA; Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Ruiqing Kang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Hong Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Lingfei Kong
- Department of Pathology, Henan Provincial People's Hospital (People's Hospital of Zhengzhou University, People's Hospital of Henan University), Zhengzhou 450003, China.
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA; Department of Neurosurgery, Loma Linda University, Loma Linda, CA 92354, USA.
| |
Collapse
|
31
|
Chen X, Chen A, Wei J, Huang Y, Deng J, Chen P, Yan Y, Lin M, Chen L, Zhang J, Huang Z, Zeng X, Gong C, Zheng X. Dexmedetomidine alleviates cognitive impairment by promoting hippocampal neurogenesis via BDNF/TrkB/CREB signaling pathway in hypoxic-ischemic neonatal rats. CNS Neurosci Ther 2024; 30:e14486. [PMID: 37830170 PMCID: PMC10805444 DOI: 10.1111/cns.14486] [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: 04/15/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/14/2023] Open
Abstract
AIMS Dexmedetomidine (DEX) has been reported to alleviate hypoxic-ischemic brain damage (HIBD) in neonates. This study aimed to investigate whether DEX improves cognitive impairment by promoting hippocampal neurogenesis via the BDNF/TrkB/CREB signaling pathway in neonatal rats with HIBD. METHODS HIBD was induced in postnatal day 7 rats using the Rice-Vannucci method, and DEX (25 μg/kg) was administered intraperitoneally immediately after the HIBD induction. The BDNF/TrkB/CREB pathway was regulated by administering the TrkB receptor antagonist ANA-12 through intraperitoneal injection or by delivering adeno-associated virus (AAV)-shRNA-BDNF via intrahippocampal injection. Western blot was performed to measure the levels of BDNF, TrkB, and CREB. Immunofluorescence staining was utilized to identify the polarization of astrocytes and evaluate the levels of neurogenesis in the dentate gyrus of the hippocampus. Nissl and TTC staining were performed to evaluate the extent of neuronal damage. The MWM test was conducted to evaluate spatial learning and memory ability. RESULTS The levels of BDNF and neurogenesis exhibited a notable decrease in the hippocampus of neonatal rats after HIBD, as determined by RNA-sequencing technology. Our results demonstrated that treatment with DEX effectively increased the protein expression of BDNF and the phosphorylation of TrkB and CREB, promoting neurogenesis in the dentate gyrus of the hippocampus in neonatal rats with HIBD. Specifically, DEX treatment significantly augmented the expression of BDNF in hippocampal astrocytes, while decreasing the proportion of detrimental A1 astrocytes and increasing the proportion of beneficial A2 astrocytes in neonatal rats with HIBD. Furthermore, inhibiting the BDNF/TrkB/CREB pathway using either ANA-12 or AAV-shRNA-BDNF significantly counteracted the advantageous outcomes of DEX on hippocampal neurogenesis, neuronal survival, and cognitive improvement. CONCLUSIONS DEX promoted neurogenesis in the hippocampus by activating the BDNF/TrkB/CREB pathway through the induction of polarization of A1 astrocytes toward A2 astrocytes, subsequently mitigating neuronal damage and cognitive impairment in neonates with HIBD.
Collapse
Affiliation(s)
- Xiaohui Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Andi Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jianjie Wei
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Yongxin Huang
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jianhui Deng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Pinzhong Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Yanlin Yan
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Mingxue Lin
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Lifei Chen
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Jiuyun Zhang
- Fujian Provincial Key Laboratory of Emergency MedicineFuzhouChina
| | - Zhibin Huang
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Xiaoqian Zeng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Cansheng Gong
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
| | - Xiaochun Zheng
- Department of AnesthesiologyShengli Clinical Medical College of Fujian Medical University, Fujian Provincial HospitalFuzhouChina
- Fujian Provincial Key Laboratory of Emergency MedicineFuzhouChina
- Fujian Emergency Medical Center, Fujian Provincial Key Laboratory of Critical Care MedicineFujian Provincial Co‐Constructed Laboratory of “Belt and Road”FuzhouChina
| |
Collapse
|
32
|
Jin J, Fan Z, Long Y, Li Y, He Q, Yang Y, Zhong W, Lin D, Lian D, Wang X, Xiao J, Chen Y. Matrine induces ferroptosis in cervical cancer through activation of piezo1 channel. Phytomedicine 2024; 122:155165. [PMID: 37922791 DOI: 10.1016/j.phymed.2023.155165] [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: 07/24/2023] [Revised: 09/30/2023] [Accepted: 10/24/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Cervical cancer, which is a significant public health concern in women, currently lacks effective therapeutic drugs. Matrine, a constituent of the traditional Chinese herb Sophora flavescentis Radix, is known for its anti-cervical cancer properties and ability to induce programmed cell death. The induction of cancer cell ferroptosis, which is a novel cell death pattern, can become an effective clinical therapy for tumor in the future. However, the effect of matrine on ferroptosis in cervical cancer remains to be elucidated. PURPOSE In this study, we investigated whether matrine induces ferroptosis in cervical cancer and elucidated the underlying mechanisms. METHODS We established an SiHa-derived tumor-bearing mouse model using CB17 severe combined immunodeficient (SCID) mice and administered a group of matrine (25, 50, and 75 mg/kg) and cisplatin (2 mg/kg). We meticulously tracked alterations in body weight and tumor size and evaluated liver and kidney health using haematoxylin and eosin (H&E) staining. Using Gene Expression Omnibus (GEO) Dataset (GSE201309), we evaluated the relationship between the effects of matrine on malignant tumor cells and ferroptosis. In vitro, tetrazolium-based colorimetric (MTT), lactate dehydrogenase (LDH) and colony formation assays were used to study the effects of matrine on SiHa cell activity and cytotoxicity. We assessed ferroptosis-related protein abundance using western blotting and ferroptosis-related indices in cells using confocal immunofluorescence microscopy. The interaction of matrine with a protein linked to ferroptosis was studied using cellular thermal shift assay (CETSA). The effects of matrine on Piezo1 expression were investigated using calcium imaging. We also used Piezo1-specific siRNA to explore the role of Piezo1 in ferroptosis. RESULTS Matrine administration effectively inhibited tumor growth in a SiHa-derived tumor-bearing mouse model without inducing noticeable harm. The analysis results of GEO data set show matrine-induced effects in tumor cells were indeed involved in the process of ferroptosis. Treatment with matrine resulted in a significant reduction in GPX4 protein levels and a concurrent increase in lipid peroxide and Fe2+ content, suggesting matrine-induced modulation of ferroptosis. Matrine promoted SiHa cell death in vitro, as evidenced by the results of MTT and LDH assays. Cell death coincides with increases in intracellular Fe2+, reactive oxygen species (ROS), and lipid peroxides. Our study also revealed significant upregulation of Piezo1 expression through the action of matrine, whereas transferrin receptor (Tfr) and System Xc- (xCT) expression and interaction remained unaffected. We provided further evidence that matrine induces calcium influx through the Piezo1 channel, thereby potentially influencing ferroptosis. Transfection with Piezo1 siRNA reversed the effects of matrine in SiHa cell. CONCLUSIONS Our findings indicate that matrine exerts a protective effect against cervical cancer by inducing ferroptosis through the activation of Piezo1, but not xCT or Tfr.
Collapse
Affiliation(s)
- Jiaqi Jin
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China; Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, 111Da De Road, Guangzhou 510120, China
| | - Zhaofeng Fan
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, 111Da De Road, Guangzhou 510120, China; The Second Clinical College of Guangzhou University of Chinese Medicine, No.232 Waihuan Dong Rd,Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Yonglin Long
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China; Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, 111Da De Road, Guangzhou 510120, China
| | - Yinping Li
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Qian He
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Yiming Yang
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Weijian Zhong
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Disheng Lin
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China
| | - Dawei Lian
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, China
| | - Xiao Wang
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China.
| | - Jing Xiao
- Department of Gynaecology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, 111Da De Road, Guangzhou 510120, China.
| | - Yang Chen
- Department of Pharmacology, School of Pharmaceutical, Guangzhou University of Chinese Medicine, No. 232 Waihuan Dong Rd., Guangzhou University Town, Panyu District, Guangzhou 510000, China.
| |
Collapse
|
33
|
Sun C, Rahman MSU, Enkhjargal B, Peng J, Zhou K, Xie Z, Wu L, Zhang T, Zhu Q, Tang J, Zeng Y, Zhang JH, Xu S. Osteopontin modulates microglial activation states and attenuates inflammatory responses after subarachnoid hemorrhage in rats. Exp Neurol 2024; 371:114585. [PMID: 37884185 DOI: 10.1016/j.expneurol.2023.114585] [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: 05/15/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
AIMS Osteopontin (OPN) has demonstrated neuroprotective effects in various stroke models. Its role in neuroinflammation after brain injury remains to be elucidated. This study aims to clarify the effect of OPN on neuroinflammation, particularly on the functional states of microglia after subarachnoid hemorrhage (SAH). METHODS 77 rats were randomly divided into the following groups: Sham, SAH 24 h, SAH + rOPN, SAH + Vehicle (PBS), SAH + OPN siRNA, and SAH + Scr siRNA, SAH + rOPN+Fib-14 and SAH + rOPN+DMSO. Modified Garcia and beam balance tests were used to evaluate neurobehavioral outcomes. Semi-quantitative immunofluorescence staining was performed to measure expression of myeloperoxidase (MPO) and microglia activation state markers CD16, CD206 after SAH and recombinant OPN treatment. The quantification of microglia activation and functional markers CD16, CD206, TNF-α and IL-10 were further evaluated using Western-blotting. RESULTS Nasal administration of rOPN improved neurological dysfunction, attenuated neutrophil infiltration, and decreased expression of phenotypic and functional markers of pro-inflammatory microglia CD16 and TNF-α. It also promoted an anti-inflammatory microglial state, as evidenced by increased expression of CD206 and IL-10. Furthermore, after blocking the phosphorylation of FAK signaling, the effects of rOPN on microglial activation states were partially reversed. The downstream pathways of STAT3 and NF-κB also exhibited consistent changes, suggesting the involvement of the STAT3 and NF-κB pathways in OPN's modulation of microglial activation via integrin-FAK signaling. CONCLUSION OPN attenuates inflammatory responses after SAH by promoting an anti-inflammatory microglial state, potentially mediated through the integrin-FAK-STAT3 and NF-κB signaling pathways.
Collapse
Affiliation(s)
- Chengmei Sun
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Muhammad Saif Ur Rahman
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Jianhua Peng
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Keren Zhou
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Zhiyi Xie
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Lingyun Wu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Tongyu Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Qiquan Zhu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Yujia Zeng
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA.
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China.
| |
Collapse
|
34
|
Chen S, Jin J, Xu Z, Han H, Wu L, Li Z. Catalpol attenuates osteoporosis in ovariectomized rats through promoting osteoclast apoptosis via the Sirt6-ERα-FasL axis. Phytomedicine 2024; 123:155262. [PMID: 38100921 DOI: 10.1016/j.phymed.2023.155262] [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: 08/21/2023] [Revised: 11/19/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND Catalpol, a major active component of the Chinese herb Rehmannia glutinosa, possesses various pharmacological benefits, including anti-inflammatory, antidiabetic, and antitumor properties. Recent studies have reported that catalpol can attenuate bone loss and enhance bone formation. Nevertheless, the molecular mechanisms underlying its effects on osteoporosis pathogenesis remain unclear. PURPOSE We investigated whether catalpol had a protective effect against postmenopausal osteoporosis (PMOP) and explored its exact mechanism of action. METHODS Seventy-two rats were randomly divided into six groups: sham, model, low-dose catalpol (5 mg/kg/day), medium-dose catalpol (10 mg/kg/day), high-dose catalpol (20 mg/kg/day), and positive control (alendronate, 2.5 mg/kg). In this experiment, a ovariectomy was performed to establish a female rat model of PMOP. After 12 weeks of gavage, micro-computed tomography (micro-CT) and histochemical staining were performed to evaluate bone mass, bone microstructure and histological parameters. Furthermore, RAW 264.7 cells were induced by RANKL to form mature osteoclasts to investigate the effect of catalpol on osteoclast differentiation and apoptosis in vitro. Additionally, the osteoclast apoptosis-related proteins of Sirt6, ERα, FasL, NFATc1, cleaved-caspase 8, cleaved-caspase 3, and Bax were assessed using western blotting. The expressions of NFATc1, Ctsk, Oscar, and Trap were quantified using RT-qPCR. The apoptotic rate of the osteoclasts was determined using flow cytometry. Sirt6 knockdown was performed using siRNA gene silencing in experiments to investigate its role in catalpol-mediated osteoclast apoptosis. The deacetylation of ERα in osteoclasts was tested via co-immunoprecipitation. RESULTS Catalpol (10 and 20 mg/kg) and alendronate (2.5 mg/kg) could significantly improve bone mineral density (BMD) and microstructure and decrease osteoclast density in ovariectomized (OVX) rats. In addition, catalpol (10 and 20 mg/kg) upregulated the expression of Sirt6, ERα, FasL, cleaved-caspase 8, cleaved-caspase 3, Bax, and downregulated the expression of NFATc1, Ctsk, Oscar, Trap both in vivo and in vitro. Catalpol also promoted ERα deacetylation and stabilized ERα protein to enhance the expression of FasL. In addition, Sirt6 knockdown by siRNA prevented ERα deacetylation and eliminated catalpol-mediated osteoclast apoptosis. CONCLUSIONS The present study demonstrated that catalpol prevents estrogen deficiency-induced osteoporosis by promoting osteoclast apoptosis via the Sirt6-ERα-FasL axis. These findings revealed a novel molecular mechanism underpinning the impact of catalpol in the progression of osteoporosis and provided novel insights into the treatment of osteoporosis.
Collapse
Affiliation(s)
- Shuai Chen
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Jin
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Ziqing Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huawei Han
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lan Wu
- Department of Gynecology and Obstetrics, Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, China.
| | - Zhiwei Li
- Department of Orthopaedics, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
| |
Collapse
|
35
|
Huang Y, Han M, Shi Q, Li X, Mo J, Liu Y, Chu Z, Li W. Li, P HY-021068 alleviates cerebral ischemia-reperfusion injury by inhibiting NLRP1 inflammasome and restoring autophagy function in mice. Exp Neurol 2024; 371:114583. [PMID: 37884189 DOI: 10.1016/j.expneurol.2023.114583] [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: 08/04/2023] [Revised: 10/08/2023] [Accepted: 10/23/2023] [Indexed: 10/28/2023]
Abstract
Cerebral ischemia-reperfusion injury (CIRI) is a severe pathological condition that involves oxidative stress, inflammatory response, and neuronal damage. HY-021068 belongs to a new drug of chemical class 1, which is a potential thromboxane synthase inhibitor. Our preliminary experiment found that HY-021068 has significant anti-neuroinflammatory and neuroprotective effects. However, the protective effect and mechanism of HY-021068 in CIRI remain unclear. To investigate the protective effect and mechanism of HY-021068 in CIRI mice. In mice, CIRI was induced by bilateral common carotid artery occlusion and reperfusion. Mice were treated with HY-021068 or LV-NLRP1-shRNA (lentivirus-mediated shRNA transfection to knock down NLRP1 expression). The locomotor activity, neuronal damage, pathological changes, postsynaptic density protein-95 (PSD-95) expression, NLRP1 inflammasome activation, autophagy markers, and apoptotic proteins were assessed in CIRI mice. In this study, treatment with HY-021065 and LV-NLRP1-shRNA significantly improved motor dysfunction and neuronal damage after CIRI in mice. HY-021065 and NLRP1 knockdown significantly ameliorated the pathological damage and increased PSD-95 expression in the cortex and hippocampus CA1 and CA3 regions. The further studies showed that compared with the CIRI model group, HY-021065 and NLRP1 knockdown treatment inhibited the expressions of NLRP1, ASC, caspase-1, and IL-1β, restored the expressions of p-AMPK/AMPK, Beclin1, LC3II/LC3I, p-mTOR/m-TOR and P62, and regulated the expressions of BCL-2, Caspase3, and BAX in brain tissues of CIRI mice in CIRI mice. These results suggest that HY-021068 exerts a protective role in CIRI mice by inhibiting NLRP1 inflammasome activation and regulating autophagy function and neuronal apoptosis. HY-021068 is expected to become a new therapeutic drug for CIRI.
Collapse
Affiliation(s)
- Ye Huang
- Department of Plastic Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, Anhui, China
| | - Min Han
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Qifeng Shi
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Xuewang Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Jiajia Mo
- Hefei Industrial and Pharmaceutical Co., Ltd, Hefei 230200, Anhui, China
| | - Yan Liu
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Zhaoxing Chu
- Hefei Industrial and Pharmaceutical Co., Ltd, Hefei 230200, Anhui, China.
| | - Weizu Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China.
| |
Collapse
|
36
|
Liu X, Liu G, Mao Y, Luo J, Cao Y, Tan W, Li W, Yu H, Jia X, Li H. Engineering extracellular vesicles mimetics for targeted chemotherapy of drug-resistant ovary cancer. Nanomedicine (Lond) 2024; 19:25-41. [PMID: 38059464 DOI: 10.2217/nnm-2023-0289] [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] [Indexed: 12/08/2023] Open
Abstract
Aim: To develop nanocarriers for targeting the delivery of chemotherapeutics to overcome multidrug-resistant ovarian cancer. Materials & methods: Doxorubicin-loaded nanovesicles were obtained through serial extrusion, followed by loading of P-glycoprotein siRNA and folic acid. The targeting ability and anticancer efficacy of the nanovesicles were evaluated. Results: The doxorubicin-loaded nanovesicles showed a high production yield. The presence of P-glycoprotein siRNA and folic acid resulted in reversed drug resistance and tumor targeting. This nanoplatform tremendously inhibited the viability of multidrug-resistant ovarian cancer cells, which was able to target tumor tissue and suppress tumor growth without adverse effects. Conclusion: These bioengineered nanovesicles could serve as novel extracellular vesicles mimetics for chemotherapeutics delivery to overcome multidrug resistance.
Collapse
Affiliation(s)
- Xiaoguang Liu
- Department of Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity & Child Health Care Hospital, Nanjing, 210001, China
| | - Guangquan Liu
- Department of Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity & Child Health Care Hospital, Nanjing, 210001, China
| | - Yinghua Mao
- Centre for Diseases Prevention & Control of Eastern Theater, Nanjing, 210002, China
| | - Jie Luo
- Department of Healthcare, General Hospital of Eastern Theater Command, Nanjing, 210002, China
| | - Yongping Cao
- Centre for Diseases Prevention & Control of Eastern Theater, Nanjing, 210002, China
| | - Weilong Tan
- Centre for Diseases Prevention & Control of Eastern Theater, Nanjing, 210002, China
| | - Wenhao Li
- Centre for Diseases Prevention & Control of Eastern Theater, Nanjing, 210002, China
| | - Huanhuan Yu
- Department of Clinical Pharmacy, General Hospital of Eastern Theater Command, Nanjing, 210002, China
| | - Xuemei Jia
- Department of Gynecology, Women's Hospital of Nanjing Medical University, Nanjing Maternity & Child Health Care Hospital, Nanjing, 210001, China
| | - Hong Li
- Centre for Diseases Prevention & Control of Eastern Theater, Nanjing, 210002, China
| |
Collapse
|
37
|
Hao LS, Zhan ZY, Song J, Miao XJ, He Y, Jiang MY, Ji JX, Mo YB. [Effect of adenovirus-mediated shRNA down-regulates SHP2 expression on the apoptosis of human hepatic stellate cells LX-2]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1313-1317. [PMID: 38253076 DOI: 10.3760/cma.j.cn501113-20220228-00090] [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] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Objective: To investigate the effect of adenovirus-mediated short hairpin RNA (shRNA) downregulating SH2 domain-containing protein tyrosine phosphatase 2 (SHP2) on the apoptosis of human hepatic stellate cells LX-2 cultured in vitro. Methods: The recombinant adenovirus Ad-shRNA/SHP2 carrying shRNA targeted SHP2 and expressing green fluorescent protein (GFP), and the empty control virus Ad-GFP expressing GFP were transfected into LX-2 cells cultured in vitro. Real-time fluorescence quantitative PCR was used to detect SHP2 mRNA expression in LX-2 cells. Western blot was used to detect the protein expressions of SHP2, Bax, and Bcl-2 in LX-2 cells. TUNEL and annexin-V/propidium iodide dual-labeled flow cytometry were used to detect apoptosis in LX-2 cells. Experimental group: (1) Control group: LX-2 cells were transfected with DMEM instead of adenovirus; (2) Ad-GFP group: transfected with empty virus Ad-GFP; (3) Ad-shRNA/SHP2 group: transfected with recombinant adenovirus Ad-shRNA/SHP2. The means between multiple groups were compared using a one-way ANOVA and the LSD test was used for inter group comparisons. Results: shRNA-targeted SHP2 significantly down-regulated the expression of SHP2 protein and mRNA in LX-2 cells (P < 0.05). The TUNEL and annexin-V/propidium iodide dual-labeled flow cytometry results showed that the apoptosis rate of LX-2 cells in the Ad-shRNA/SHP2 group (12.755%±1.606%, 19.340%±2.505%) (P < 0.05) was significantly higher compared to the control group (3.077%±0.731%, 9.438%±0.804%) and the Ad-GFP group (3.250%±0.851%, 8.893%±1.982%), with no statistically significant difference between the control group and the Ad-GFP group (P > 0.05). Western blot analysis of Bax and Bcl-2 protein expression in LX-2 cells of each group revealed that the Bax protein expression was significantly higher in the Ad shRNA/SHP2 group (2.493 ± 0.203) (P < 0.05) compared to the control group and Ad-GFP group (1.989 ± 0.147, 1.999 ± 0.162), with no statistically significant difference between the control group and the Ad-GFP group (P > 0.05), while the Bcl-2 protein was significantly decreased in the Ad-shRNA/SHP2 group (1.042±0.148) compared with the control group and the Ad-GFP group (1.707±0.146, 1.521±0.142), with no statistically significant difference between the control group and the Ad-GFP group (P > 0.05). Conclusions: SHP2 expression down-regulation induces apoptosis of human hepatic stellate cells LX-2 in vitro by reducing Bcl-2/Bax.
Collapse
Affiliation(s)
- L S Hao
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - Z Y Zhan
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - J Song
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - X J Miao
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - Y He
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - M Y Jiang
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - J X Ji
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| | - Y B Mo
- Department of Gastroenterology, The Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, China
| |
Collapse
|
38
|
Penrod RD, Taniguchi M, Kearns AM, Hopkins JL, Reichel CM. Differential Roles of Oxytocin Receptors in the Prefrontal Cortex and Nucleus Accumbens on Cocaine Self-Administration and Reinstatement of Cued Cocaine Seeking in Male Rats. Int J Neuropsychopharmacol 2023; 26:817-827. [PMID: 37875346 PMCID: PMC10726405 DOI: 10.1093/ijnp/pyad059] [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: 07/06/2023] [Accepted: 10/23/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Little is known about the specific roles of cortical and accumbal oxytocin receptors in drug use disorders. To better understand the importance of the endogenous oxytocin system in cocaine relapse behavior, we developed an adeno-associated viral vector-expressing short hairpin (sh) RNAs to selectively degrade the rat oxytocin receptor (OxyR) mRNA in vivo. METHODS Male (Sprague-Dawley) rats received bilateral infusions of the shRNA for the oxytocin receptor (shOxyR) or an shRNA control virus into the prefrontal cortex (PFC) or the nucleus accumbens core (NAc). Rats self-administered cocaine on an escalating FR ratio for 14 days, lever responding was extinguished, and rats were tested for cued and cocaine-primed reinstatement of drug seeking. RESULTS OxyR knockdown in the PFC delayed the acquisition of lever pressing on an fixed ratio 1 schedule of reinforcement. All rats eventually acquired the same level of lever pressing and discrimination, and there were no differences in extinction. OxyR knockdown in the NAc had no effect during acquisition. In both the PFC and NAc, the shOxyR decreased cued reinstatement relative to shRNA control virus but was without effect during drug-primed reinstatement. OxyR knockdown in the PFC increased chamber activity during a social interaction task. CONCLUSIONS This study provides critical new information about how endogenous OxyRs function to affect drug seeking in response to different precipitators of relapse. The tool developed to knockdown OxyRs in rat could provide important new insights that aid development of oxytocin-based therapeutics to reduce return-to-use episodes in people with substance use disorder and other neuropsychiatric disorders.
Collapse
Affiliation(s)
- Rachel D Penrod
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Makoto Taniguchi
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Angela M Kearns
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Jordan L Hopkins
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Carmela M Reichel
- Department of Neuroscience, Medical University of South Carolina, Charleston, South Carolina, USA
| |
Collapse
|
39
|
Yin DP, Zhang H, Teng H, Zhang D, Chen P, Xie L, Liu JS. Overexpressed Gαi1 exerts pro-tumorigenic activity in nasopharyngeal carcinoma. Cell Death Dis 2023; 14:792. [PMID: 38049415 PMCID: PMC10696052 DOI: 10.1038/s41419-023-06308-8] [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] [Received: 07/11/2023] [Revised: 11/04/2023] [Accepted: 11/14/2023] [Indexed: 12/06/2023]
Abstract
The current study tested the expression and potential functions of Gαi1 in nasopharyngeal carcinoma (NPC). The Cancer Genome Atlas (TCGA) database results demonstrate that Gαi1 transcripts' number in NPC tissues is significantly higher than that in the normal nasal epithelial tissues. Its overexpression correlates with poor survival in certain NPC patients. Moreover, Gαi1 is significantly upregulated in NPC tissues of local primary patients and in different primary human NPC cells. Whereas its expression is relatively low in cancer-surrounding normal tissues and in primary nasal epithelial cells. Genetic silencing (via shRNA strategy) or knockout (via CRISPR-sgRNA method) of Gαi1 substantially suppressed viability, proliferation, cell cycle progression, and migration in primary NPC cells, causing significant caspase-apoptosis activation. Contrarily, ectopic Gαi1 expression exerted pro-tumorigenic activity and strengthened cell proliferation and migration in primary NPC cells. Gαi1 is important for Akt-mTOR activation in NPC cells. Akt-S6K phosphorylation was downregulated after Gαi1 shRNA or KO in primary NPC cells, but strengthened following Gαi1 overexpression. In Gαi1-silenced primary NPC cells, a S473D constitutively-active mutant Akt1 (caAkt1) restored Akt-S6K phosphorylation and ameliorated Gαi1 shRNA-induced proliferation inhibition, migration reduction and apoptosis. Bioinformatics analyses proposed zinc finger protein 384 (ZNF384) as a potential transcription factor of Gαi1. In primary NPC cells, ZNF384 shRNA or knockout (via CRISPR-sgRNA method) decreased Gαi1 mRNA and protein expression, whereas ZNF384 overexpression upregulated it. Importantly, there was an increased binding between ZNF384 protein and the Gαi1 promoter in human NPC tissues and different NPC cells. In vivo studies showed that intratumoral injection of Gαi1-shRNA-expressing adeno-associated virus (AAV) impeded subcutaneous NPC xenograft growth in nude mice. Gαi1 downregulation, Akt-mTOR inactivation, and apoptosis induction were detected in Gαi1-silenced NPC xenograft tissues. Gαi1 KO also effectively inhibited the growth of NPC xenografts in nude mice. Together, overexpressed Gαi1 exerts pro-tumorigenic activity in NPC possibly by promoting Akt-mTOR activation.
Collapse
Affiliation(s)
- De-Pei Yin
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital of Soochow University, Suzhou, China
| | - Huanle Zhang
- Department of Radiotherapy, Suzhou Ninth People's Hospital, Suzhou, China
| | - Hua Teng
- Department of Otorhinolaryngology Head and Neck Surgery, Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Dan Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Peipei Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital of Soochow University, Suzhou, China.
| | - Lixiao Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital of Soochow University, Suzhou, China.
| | - Ji-Sheng Liu
- Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China.
| |
Collapse
|
40
|
Bai W, Zhu T, Zuo J, Li Y, Huang X, Li G. Delivery of SAV-siRNA via Exosomes from Adipose-Derived Stem Cells for the Treatment of Myocardial Infarction. Tissue Eng Regen Med 2023; 20:1063-1077. [PMID: 37801227 PMCID: PMC10645647 DOI: 10.1007/s13770-023-00588-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] [Received: 05/12/2023] [Revised: 07/24/2023] [Accepted: 08/07/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND Myocardial infarction (MI) leads to cardiomyocyte death, poor cardiac remodeling, and heart failure, making it a major cause of mortality and morbidity. To restore cardiac pumping function, induction of cardiomyocyte regeneration has become a focus of academic interest. The Hippo pathway is known to regulate cardiomyocyte proliferation and heart size, and its inactivation allows adult cardiomyocytes to re-enter the cell cycle. METHODS In this study, we investigated whether exosomes from adipose-derived stem cells (ADSCs) could effectively transfer siRNA for the Hippo pathway regulator Salvador (SAV) into cardiomyocytes to induce cardiomyocyte regeneration in a mouse model of MI. RESULTS Our results showed that exosomes loaded with SAV-siRNA effectively transferred siRNA into cardiomyocytes and induced cardiomyocyte re-entry into the cell cycle, while retaining the previously demonstrated therapeutic efficacy of ADSC-derived exosomes to improve post-infarction cardiac function through anti-fibrotic, pro-angiogenic, and other effects. CONCLUSIONS Our findings suggest that siRNA delivery via ADSC-derived exosomes may be a promising approach for the treatment of MI.
Collapse
Affiliation(s)
- Weizhe Bai
- Department of Cardiac Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China
| | - Tianchuan Zhu
- Center for Infection and Immunity, Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China
| | - Jiebin Zuo
- Department of Cardiac Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China
| | - Yang Li
- Department of Cardiac Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China
| | - Xi Huang
- Center for Infection and Immunity, Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China.
| | - Gang Li
- Department of Cardiac Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, No. 52, Meihua East Road, Zhuhai, Guangdong, People's Republic of China.
| |
Collapse
|
41
|
Ouyang L, He T, Xing Y. Park7 protects retinal ganglion cells and promotes functional preservation after optic nerve crush via regulation of the Nrf2 signaling pathway. Graefes Arch Clin Exp Ophthalmol 2023; 261:3489-3502. [PMID: 37199801 DOI: 10.1007/s00417-023-06099-w] [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: 02/09/2023] [Revised: 04/19/2023] [Accepted: 05/02/2023] [Indexed: 05/19/2023] Open
Abstract
PURPOSE We aim to investigate the effect of Park7 on mice RGC survival and function following optic nerve crush (ONC), and to explore its potential mechanism. METHODS Wild-type male C57BL/6J mice were subjected to optic nerve crush. Six weeks before ONC, mice received rAAV-shRNA (Park7)-EGFP or rAAV-EGFP intravitreally. Western blotting was used to detect Park7 levels. RGC survival was measured using immunofluorescence. Retinal cell apoptosis was detected using terminal deoxynucleotidyl transferase nick-end-labelling. An electroretinogram (ERG) and the optomotor response (OMR) were used to assess RGC function. Kelch-like ECH-associated protein 1 (Keap1), nuclear factor erythroid 2-related factor (Nrf2), and heme oxygenase 1 (HO-1) levels were assessed using western blotting. RESULTS ONC injury increased the relative expression of Park7 significantly and decreased RGC survival, the amplitude of the photopic negative response (PhNR), and OMR. Intravitreal injection of rAAV-shRNA(Park7)-EGFP downregulated Park7 expression and was clearly demonstrated by the green fluorescence protein in many retinal layers. Moreover, Park7 downregulation aggravated the decrease in RGC survival and amplitude of PhNR as well as the visual acuity after ONC. However, inhibition of Park7 significantly increased Keap1 levels, decreased the total and nuclear Nrf2 levels, and reduced HO-1 levels. CONCLUSIONS Park7 downregulation enhanced RGC injury and decreased retinal electrophysiological response and OMR after ONC in mice via the Keap1-Nrf2-HO-1 signaling pathway. Park7 may have neuroprotective effects and could represent a novel way to treat optic neuropathy.
Collapse
Affiliation(s)
- Lingyi Ouyang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China.
| |
Collapse
|
42
|
Pu L, Yi F, Yu WJ, Li YJ, Tu YH, Xu AH, Wang Y. Endoplasmic reticulum stress mediates environmental particle-induced inflammatory response in bronchial epithelium. J Immunotoxicol 2023; 20:2229428. [PMID: 37417782 DOI: 10.1080/1547691x.2023.2229428] [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: 09/27/2022] [Accepted: 06/16/2023] [Indexed: 07/08/2023] Open
Abstract
While the detailed mechanisms for how particulate matter (PM) causes adverse health effects in the lungs remain largely unknown, endoplasmic reticulum (ER) stress has been implicated in PM-induced lung injury. The present study was undertaken to examine how/if ER stress might regulate PM-induced inflammation, and to begin to define potential underlying molecular mechanisms. Here, ER stress hallmarks were examined in human bronchial epithelial (HBE) cells exposed to PM. To confirm roles of certain pathways, siRNA targeting ER stress genes and an ER stress inhibitor were employed. Expression of select inflammatory cytokines and related signaling pathway components by the cells were assessed as well. The results showed that PM exposure induced elevations in two ER stress hallmarks, i.e. GRP78 and IRE1α, in time-and/or dose-related manners in the HBE cells. Inhibition of ER stress by siRNA for GRP78 or IRE1α significantly alleviated the PM-induced effects. Further, ER stress appeared to regulate PM-induced inflammation - likely through downstream autophagy and NF-κB pathways - as implied by studies showing that inhibition of ER stress by siRNA of GRP78 or IRE1α caused significant amelioration of PM-induced autophagy and subsequent activation of NF-κB pathways. Moreover, the ER stress inhibitor 4-PBA were used to confirm the protective effects against PM-induced outcomes. Together, the results suggest ER stress plays a deleterious role in PM-induced airway inflammation, possibly through activation of autophagy and NF-κB signaling. Accordingly, protocols/treatments that could lead to inhibited ER stress could potentially be effective for treatment of PM-related airway disorders.
Collapse
Affiliation(s)
- Li Pu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - Fen Yi
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - Wen-Jing Yu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - Ya-Jing Li
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - You-Hui Tu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - Ai-Hui Xu
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| | - Yong Wang
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Anhui Medical University, and Anhui Medical University, Hefei, China
| |
Collapse
|
43
|
Qiao X, Wang H, He Y, Song D, Altawil A, Wang Q, Yin Y. Grape Seed Proanthocyanidin Ameliorates LPS-induced Acute Lung Injury By Modulating M2a Macrophage Polarization Via the TREM2/PI3K/Akt Pathway. Inflammation 2023; 46:2147-2164. [PMID: 37566293 PMCID: PMC10673742 DOI: 10.1007/s10753-023-01868-5] [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: 03/29/2023] [Revised: 05/30/2023] [Accepted: 06/29/2023] [Indexed: 08/12/2023]
Abstract
Acute lung injury (ALI) is an acute and progressive pulmonary inflammatory disease that is difficult to cure and has a poor prognosis. Macrophages, which have various phenotypes and diverse functions, play an essential role in the pathogenesis of ALI. Grape seed proanthocyanidin (GSP) has received much attention over several decades, and many biological activities such as anti-apoptotic, antioxidant, and anti-inflammatory have been identified. This study aimed to determine the effect of GSP on lipopolysaccharide (LPS)-induced ALI. In this study, we established an ALI mouse model by tracheal instillation of LPS, and by pre-injection of GSP into mice to examine the effect of GSP on the ALI mouse model. Using H&E staining, flow cytometry, and ELISA, we found that GSP attenuated LPS-induced lung pathological changes and decreased inflammatory cytokine expression in ALI mice. In addition, GSP reduced the recruitment of monocyte-derived macrophages to the lung and significantly promoted the polarization of primary mouse lung macrophages from M1 to M2a induced by LPS. In vitro, GSP also decreased the expression levels of inflammatory cytokines such as TNF-α, IL-6, IL-1β, and M1 macrophage marker iNOS induced by LPS in MH-S cells, while increasing the expression levels of M2a macrophage marker CD206. Bioinformatics analysis identified TREM2 and the PI3K/Akt pathway as candidate targets and signaling pathways that regulate M1/M2a macrophage polarization in ALI, respectively. Furthermore, GSP activated PI3K/Akt and increased TREM2 expression in vivo and in vitro. Meanwhile, GSP's impact on M2a polarization and inflammation suppression was attenuated by the PI3K inhibitor LY294002 or siRNA knockdown TREM2. In addition, GSP-enhanced PI3K/Akt activity was prevented by TREM2 siRNA. In conclusion, this study demonstrated that GSP could ameliorate LPS-induced ALI by modulating macrophage polarization from M1 to M2a via the TREM2/PI3K/Akt pathway.
Collapse
Affiliation(s)
- Xin Qiao
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Hua Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Yulin He
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Dongfang Song
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Abdullah Altawil
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Qiuyue Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China
| | - Yan Yin
- Department of Pulmonary and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, China.
| |
Collapse
|
44
|
Ye D, Cruz-López EO, Tu HC, Zlatev I, Danser AJ. Targeting Angiotensinogen With N-Acetylgalactosamine-Conjugated Small Interfering RNA to Reduce Blood Pressure. Arterioscler Thromb Vasc Biol 2023; 43:2256-2264. [PMID: 37855126 PMCID: PMC10659251 DOI: 10.1161/atvbaha.123.319897] [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: 07/19/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
Blood pressure management involves antihypertensive therapies blocking the renin-angiotensin system (RAS). Yet, it might be inadequate due to poor patient adherence or the so-called RAS escape phenomenon, elicited by the compensatory renin elevation upon RAS blockade. Recently, evidence points toward targeting hepatic AGT (angiotensinogen) as a novel approach to block the RAS pathway that could circumvent the RAS escape phenomenon. Removing AGT, from which all angiotensins originate, should prevent further angiotensin generation, even when renin rises. Furthermore, by making use of a trivalent N-acetylgalactosamine ligand-conjugated small interfering RNA that specifically targets the degradation of hepatocyte-produced mRNAs in a highly potent and specific manner, it may be possible in the future to manage hypertension with therapy that is administered 1 to 2× per year, thereby supporting medication adherence. This review summarizes all current findings on AGT small interfering RNA in preclinical models, making a comparison versus classical RAS blockade with either ACE (angiotensin-converting enzyme) inhibitors or AT1 (angiotensin II type 1) receptor antagonists and AGT suppression with antisense oligonucleotides. It ends with discussing the first-in-human study with AGT small interfering RNA.
Collapse
Affiliation(s)
- Dien Ye
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, The Netherlands (D.Y., E.O.C.-L., A.H.J.D.)
| | - Edwyn O. Cruz-López
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, The Netherlands (D.Y., E.O.C.-L., A.H.J.D.)
| | - Ho-Chou Tu
- Alnylam Pharmaceuticals, Cambridge, MA (H.-C.T., I.Z.)
| | - Ivan Zlatev
- Alnylam Pharmaceuticals, Cambridge, MA (H.-C.T., I.Z.)
| | - A.H. Jan Danser
- Division of Pharmacology and Vascular Medicine, Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, The Netherlands (D.Y., E.O.C.-L., A.H.J.D.)
| |
Collapse
|
45
|
Liu X, Bai W, Li J, Ma J, Liu Y, Wang Z, Hu L, Li Z, Papukashvili D, Rcheulishvili N, Wang F, Lu X. MLLT11 siRNA Inhibits the Migration and Promotes the Apoptosis of MDA-MB-231 Breast Cancer Cells. Breast J 2023; 2023:6282654. [PMID: 38075552 PMCID: PMC10708952 DOI: 10.1155/2023/6282654] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023]
Abstract
Breast cancer is considered the most prevalent malignancy due to its high incidence rate, recurrence, and metastasis in women that makes it one of the deadliest cancers. The current study aimed to predict the genes associated with the recurrence and metastasis of breast cancer and to validate their effect on MDA-MB-231 cells. Through the bioinformatics analysis, the transcription factor 7 cofactor (MLLT11) as the target gene was obtained. MLLT11-specific siRNA was synthesized and transfected into MDA-MB-231 cells. The results demonstrated that the siRNA significantly reduced the MLLT11 mRNA levels. Moreover, cell migration and invasion, as well as the protein levels of phosphatidylinositol 3-kinase (PI3K), AKT, matrix metalloproteinase (MMP) 2, and MMP9, were significantly lower in the groups treated with siRNA while the apoptosis was augmented. Collectively, MLLT11 siRNA elicited ameliorative properties on breast cancer cells, possibly via the inhibition of the PI3K/AKT signaling pathway.
Collapse
Affiliation(s)
- Xiangrong Liu
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| | - Wenqi Bai
- Breast Surgery, The Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Jianrong Li
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| | - Jinfeng Ma
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| | - Yan Liu
- Shanxi Medical University, Taiyuan 030006, China
| | | | - Linjie Hu
- Shanxi Medical University, Taiyuan 030006, China
| | - Zheng Li
- Shanxi Medical University, Taiyuan 030006, China
| | | | | | - Fusheng Wang
- Breast Surgery, The Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Xiaoqing Lu
- Shanxi Province Cancer Hospital, Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
46
|
Hussain Y, Meena A, Sinha RA. Gossypol synergises antiproliferative effect of sorafenib in metastatic lung cancer cells following Chou-Talalay algorithm. Toxicol In Vitro 2023; 93:105666. [PMID: 37611852 DOI: 10.1016/j.tiv.2023.105666] [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: 05/31/2023] [Revised: 07/28/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
Combination therapy has been proposed as a promising approach for lung cancer treatment, as it can enhance anticancer efficacy, and reduce dosages and adverse effects. This study aimed to explore the therapeutic potential of gossypol, a natural polyphenolic compound with sorafenib for treating lung cancer cells and elucidating its mechanism of action. The MTT assay was utilized to determine the IC50 of sorafenib and gossypol against A549 and NCI H460 cell lines. The Chou-Talaly algorithm was employed to determine the combination index (CI). A sub-effective concentration of sorafenib and gossypol was chosen to investigate the possibility of cytotoxic synergy. Autophagy biomarkers were identified using Western blotting, and the function of autophagy was determined using ATG5 siRNA. Results show that IC50 of sorafenib significantly reduced in A549 and NCI H460 cells when co-treated with gossypol. The combination treatment showed a synergistic cytotoxic effect against tested cell lines. The Chou-Talaly algorithm confirmed sorafenib's dose reduction index (DRI) up to 3.86. In A549 cells, combination treatment down-regulated p62 and up-regulated LC3-II, indicating the initiation of autophagy-dependent cytotoxicity. This was further confirmed by siRNA ATG5 knockdown. Additionally, the combination treatment exclusively targeted G0/G1 phase cancer cells. In conclusion, the combination of gossypol and sorafenib shows a synergistic increase in the cytotoxic effect by promoting autophagy and apoptosis.
Collapse
Affiliation(s)
- Yusuf Hussain
- Bioprospection and Product Development Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Abha Meena
- Bioprospection and Product Development Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India.
| | - Rohit Anthony Sinha
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, Uttar Pradesh, India
| |
Collapse
|
47
|
Wei J, Xie J, He J, Li D, Wei D, Li Y, Li X, Fang W, Wei G, Lai K. Active fraction of Polyrhachis vicina (Roger) alleviated cerebral ischemia/reperfusion injury by targeting SIRT3-mediated mitophagy and angiogenesis. Phytomedicine 2023; 121:155104. [PMID: 37797433 DOI: 10.1016/j.phymed.2023.155104] [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: 03/02/2023] [Revised: 08/01/2023] [Accepted: 09/17/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND Damaged mitophagy and impaired angiogenesis involve in the pathogenic development of ischemic stroke. Active fraction of Polyrhachis vicina (Roger) (AFPR) showed great potential on neurological disease with it's remarkable anti-inflammatory and anti-oxidative effects. PURPOSE This study designed to clarify the correlation between Pink1/Parkin-mediated mitophagy and angiogenesis after stroke, and to elucidate the role of SIRT3 in regulating mitophagy and angiogenesis, and to address the mechanism of AFPR on promoting mitophagy and angiogenesis in microvessels endothelium of ischemic brain. STUDY DESIGN A cerebral ischemia/reperfusion (CIR) rat model was developed by middle cerebral artery occlusion procedure. bEnd.3 cells were exposed to oxygen-glucose deprivation/reoxygenation (OGD/R) to mimic CIR process. Neurological function, mitophagy and angiogenesis related indicators were measured. SIRT3 siRNA and 3-MA were used to verify the interaction between SIRT3-mediated mitophagy and angiogenesis. METHODS CIR rats were orally treated with AFPR (8 and 4 g raw drug /kg) and Nimodipine (10.8 mg/kg) for 12 days to mimic the recovery phase post-stroke. The neurological function assessment, TTC staining, HE staining, TUNEL staining and Nissl staining were performed to assess neuroprotective effects of AFPR against CIR. Then CD31-labeled microvessel density in brain was visualized and quantified by immunofluorescence staining. Mitochondrial ultrastructure was assessed by transmission electron microscope scanning. Expressions of relative proteins,e.g. SIRT3, Pink1, Parkin, LC3-II, p62, VEGFA, involving in mitophagy and angiogenesis, were detected by Western blotting analysis. In vitro, bEnd.3 cells were cultured with AFPR or in combination of autophagy inhibitor 3-MA during the reoxygenation. Then cell viability, and LDH releasing were measured. Angiogenic indicators,such as migration and tube formation activity, VEGFA level were determined. To assess effects of AFPR on mitophagy, mitophagy-related proteins were detected, as well as the autophagosome engulfment and lysosome degradation of mitochondria. To address the role of SIRT3, deacetylation activity of SIRT3 was validated by detecting acetylated FOXO3A level with co-immunoprecipitation (Co-IP) assay. Pre-treatment of siRNA or combination use of 3-MA were used to verify the detailed mechanism. RESULTS AFPR remarkably reduced neurological scores and infarct size, alleviated neuron apoptosis in cortex, and increased Nissl density in hippocampus of CIR rats. In addition, AFPR significantly promoted angiogenesis by increasing microvessels density and VEGFA expressions, increased SIRT3 expression, and activated Pink1/Parkin mediated mitophagy. In bEnd.3 cells, the combination use of 3-MA and AFPR further demonstrated that AFPR might promote angiogenesis after OGD/R injury through activating Pink1/Parkin mediated mitophagy. Co-IP assay suggested AFPR reduced acetylated FOXO3A level. This might be correlated with an elevation of SIRT3 expression and it's deacetylation activity. SIRT3 siRNA pretreatment significantly abolished the activation of mitophagy through Pink1/Parkin axis, eventually inhibited angiogenesis. CONCLUSION AFPR promoted angiogenesis through activating mitophagy after cerebral ischemia reperfusion, which might partially involved in the amelioration of SIRT3-mediated regulation on Pink1/Parkin axis. Our study will shed new light on the role of SIRT3 in ischemic brain, especially in regulating mitophagy and angiogenesis after stroke.
Collapse
Affiliation(s)
- Jie Wei
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China
| | - Jiaxiu Xie
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China
| | - Junhui He
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China
| | - Dongmei Li
- Guangxi Key Laboratory of Traditional Chinese Medicine Quality Standards, Nanning, 530022, China
| | - Dongmei Wei
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China
| | - Yi Li
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China
| | - Xiang Li
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Weirong Fang
- State Key Laboratory of Natural Medicines, School of Basic Medical Sciences and Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Guining Wei
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China.
| | - Kedao Lai
- Department of Pharmacology, Guangxi Institute of Chinese Medicine and Pharmaceutical Science, Nanning, 530022, China.
| |
Collapse
|
48
|
Balaraman V, Indran SV, Li Y, Meekins DA, Jakkula LUMR, Liu H, Hays MP, Souza-Neto JA, Gaudreault NN, Hardwidge PR, Wilson WC, Weber F, Richt JA. Identification of Host Factors for Rift Valley Fever Phlebovirus. Viruses 2023; 15:2251. [PMID: 38005928 PMCID: PMC10675714 DOI: 10.3390/v15112251] [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: 09/28/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Rift Valley fever phlebovirus (RVFV) is a zoonotic pathogen that causes Rift Valley fever (RVF) in livestock and humans. Currently, there is no licensed human vaccine or antiviral drug to control RVF. Although multiple species of animals and humans are vulnerable to RVFV infection, host factors affecting susceptibility are not well understood. To identify the host factors or genes essential for RVFV replication, we conducted CRISPR-Cas9 knockout screening in human A549 cells. We then validated the putative genes using siRNA-mediated knock-downs and CRISPR-Cas9-mediated knock-out studies. The role of a candidate gene in the virus replication cycle was assessed by measuring intracellular viral RNA accumulation, and the virus titers were analyzed using plaque assay or TCID50 assay. We identified approximately 900 genes with potential involvement in RVFV infection and replication. Further evaluation of the effect of six genes on viral replication using siRNA-mediated knock-downs revealed that silencing two genes (WDR7 and LRP1) significantly impaired RVFV replication. For further analysis, we focused on the WDR7 gene since the role of the LRP1 gene in RVFV replication was previously described in detail. WDR7 knockout A549 cell lines were generated and used to dissect the effect of WRD7 on a bunyavirus, RVFV, and an orthobunyavirus, La Crosse encephalitis virus (LACV). We observed significant effects of WDR7 knockout cells on both intracellular RVFV RNA levels and viral titers. At the intracellular RNA level, WRD7 affected RVFV replication at a later phase of its replication cycle (24 h) when compared with the LACV replication, which was affected in an earlier replication phase (12 h). In summary, we identified WDR7 as an essential host factor for the replication of two different viruses, RVFV and LACV, both of which belong to the Bunyavirales order. Future studies will investigate the mechanistic role through which WDR7 facilitates phlebovirus replication.
Collapse
Affiliation(s)
- Velmurugan Balaraman
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Sabarish V. Indran
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Yonghai Li
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - David A. Meekins
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Laxmi U. M. R. Jakkula
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Heidi Liu
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Micheal P. Hays
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Jayme A. Souza-Neto
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Natasha N. Gaudreault
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - Philip R. Hardwidge
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| | - William C. Wilson
- Foreign Arthropod-Borne Animal Diseases Research Unit, United States Department of Agriculture, National Bio and Agro-Defense Facility, Agricultural Research Service, 1980 Denison Ave, Manhattan, KS 66506, USA
| | - Friedemann Weber
- Institute for Virology, FB10—Veterinary Medicine, Justus-Liebig University, 35392 Giessen, Germany
| | - Juergen A. Richt
- Center of Excellence for Emerging and Zoonotic Animal Diseases, Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, 1800 Denison Ave, Manhattan, KS 66506, USA
| |
Collapse
|
49
|
Wen J, Zhao Y, Huang C, Li S, Li P, Zhou Y, Yan Z, Zhang G. Estrogen inhibits colonic smooth muscle contractions by regulating BKβ1 signaling. PLoS One 2023; 18:e0294249. [PMID: 37948436 PMCID: PMC10637685 DOI: 10.1371/journal.pone.0294249] [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: 02/26/2023] [Accepted: 10/27/2023] [Indexed: 11/12/2023] Open
Abstract
The estrogen inhibits colonic smooth muscle contractions, which may lead to constipation. However, the mechanisms of inhibition are poorly understood. Therefore, the present study examined the effect of estrogen on rat colonic smooth muscle contractions and its potential association with the large-conductance Ca2+-activated K+ channels β1 (BKβ1) subunit. Twenty-four female Sprague Dawley rats were randomly assigned to 4 groups. After 2 weeks of intervention, the contraction activity of isolated colonic smooth muscle and the expression of BKβ1 in colonic smooth muscle of rats were detected. Additionally, in order to investigate the effects of estrogen on BKβ1 expression and calcium mobilization, in vitro experiments were conducted using rat and human colonic smooth muscle cells (SMCs). BKβ1 shRNA was used to investigate whether calcium mobilization is affected by BKβ1 in colonic SMCs. To explore the relationship between ERβ and BKβ1, serial deletions, site-directed mutagenesis, a dual-luciferase reporter assay, and chromatin immunoprecipitation assays were employed. In response to E2, colonic smooth muscle strips showed a decrease in tension, while IBTX exposure transiently increased tension. Furthermore, in these muscle tissues, BKβ1 and α-SMA were found to be co-expressed. The E2 group showed significantly higher BKβ1 expression. In cultured colonic SMCs, the expression of BKβ1 was found to increase in the presence of E2 or DPN. E2 treatment reduced Ca2+ concentrations, while BKβ1 shRNA treatment increased Ca2+ concentrations relative to the control. ERβ-initiated BKβ1 expression appears to occur via binding to the BKβ1 promoter. These results indicated that E2 may upregulate BKβ1 expression via ERβ and inhibit colonic smooth muscle contraction through ERβ by directly targeting BKβ1.
Collapse
Affiliation(s)
- Jing Wen
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yu Zhao
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Cheng Huang
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shengjie Li
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Peidong Li
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yu Zhou
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Zaihua Yan
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Guangjun Zhang
- The Second Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| |
Collapse
|
50
|
Zhang Y, Belaid M, Luo X, Daci A, Limani R, Mantaj J, Zilbauer M, Nayak K, Vllasaliu D. Probing milk extracellular vesicles for intestinal delivery of RNA therapies. J Nanobiotechnology 2023; 21:406. [PMID: 37924132 PMCID: PMC10623793 DOI: 10.1186/s12951-023-02173-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/21/2023] [Indexed: 11/06/2023] Open
Abstract
BACKGROUND Oral delivery remains unattainable for nucleic acid therapies. Many nanoparticle-based drug delivery systems have been investigated for this, but most suffer from poor gut stability, poor mucus diffusion and/or inefficient epithelial uptake. Extracellular vesicles from bovine milk (mEVs) possess desirable characteristics for oral delivery of nucleic acid therapies since they both survive digestion and traverse the intestinal mucosa. RESULTS Using novel tools, we comprehensively examine the intestinal delivery of mEVs, probing whether they could be used as, or inform the design of, nanoparticles for oral nucleic acid therapies. We show that mEVs efficiently translocate across the Caco-2 intestinal model, which is not compromised by treatment with simulated intestinal fluids. For the first time, we also demonstrate transport of mEVs in novel 3D 'apical-out' and monolayer-based human intestinal epithelial organoids (IEOs). Importantly, mEVs loaded with small interfering RNA (siRNA) induced (glyceraldehyde 3-phosphate dehydrogenase, GAPDH) gene silencing in macrophages. Using inflammatory bowel disease (IBD) as an example application, we show that administration of anti-tumour necrosis factor alpha (TNFα) siRNA-loaded mEVs reduced inflammation in a IBD rat model. CONCLUSIONS Together, this work demonstrates that mEVs could either act as natural and safe systems for oral delivery or nucleic acid therapies, or inform the design of synthetic systems for such application.
Collapse
Affiliation(s)
- Yunyue Zhang
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Mona Belaid
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Xiang Luo
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Armond Daci
- Faculty of Medicine, University of Prishtina "Hasan Prishtina", 10000, Prishtina, Kosovo
| | - Rinë Limani
- Faculty of Medicine, University of Prishtina "Hasan Prishtina", 10000, Prishtina, Kosovo
| | - Julia Mantaj
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Science, King's College London, London, SE1 9NH, UK
- School of Life Sciences, Faculty of Science and Engineering, Anglia Ruskin University, Cambridge, CB1 1PT, UK
| | - Matthias Zilbauer
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK
- Department of Paediatrics, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Komal Nayak
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK
- Department of Paediatrics, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Driton Vllasaliu
- Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Science, King's College London, London, SE1 9NH, UK.
| |
Collapse
|