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Wu J, Lu Q, Zhao J, Wu W, Wang Z, Yu G, Tian G, Gao Z, Wang Q. Enhancing the Inhibition of Breast Cancer Growth Through Synergistic Modulation of the Tumor Microenvironment Using Combined Nano-Delivery Systems. Int J Nanomedicine 2024; 19:5125-5138. [PMID: 38855730 PMCID: PMC11162247 DOI: 10.2147/ijn.s460874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 05/17/2024] [Indexed: 06/11/2024] Open
Abstract
Purpose Breast cancer is a prevalent malignancy among women worldwide, and malignancy is closely linked to the tumor microenvironment (TME). Here, we prepared mixed nano-sized formulations composed of pH-sensitive liposomes (Ber/Ru486@CLPs) and small-sized nano-micelles (Dox@CLGs). These liposomes and nano-micelles were modified by chondroitin sulfate (CS) to selectively target breast cancer cells. Methods Ber/Ru486@CLPs and Dox@CLGs were prepared by thin-film dispersion and ethanol injection, respectively. To mimic actual TME, the in vitro "condition medium of fibroblasts + MCF-7" cell model and in vivo "4T1/NIH-3T3" co-implantation mice model were established to evaluate the anti-tumor effect of drugs. Results The physicochemical properties showed that Dox@CLGs and Ber/Ru486@CLPs were 28 nm and 100 nm in particle size, respectively. In vitro experiments showed that the mixed formulations significantly improved drug uptake and inhibited cell proliferation and migration. The in vivo anti-tumor studies further confirmed the enhanced anti-tumor capabilities of Dox@CLGs + Ber/Ru486@CLPs, including smaller tumor volumes, weak collagen deposition, and low expression levels of α-SMA and CD31 proteins, leading to a superior anti-tumor effect. Conclusion In brief, this combination therapy based on Dox@CLGs and Ber/Ru486@CLPs could effectively inhibit tumor development, which provides a promising approach for the treatment of breast cancer.
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Affiliation(s)
- Jingliang Wu
- School of Medicine, Weifang University of Science and Technology, Weifang, 262700, People’s Republic of China
| | - Qiao Lu
- School of Medicine, Weifang University of Science and Technology, Weifang, 262700, People’s Republic of China
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, People’s Republic of China
| | - Jialin Zhao
- School of Clinical Medicine, Shandong Second Medical University, Weifang, 261053, People’s Republic of China
| | - Wendi Wu
- School of Clinical Medicine, Shandong Second Medical University, Weifang, 261053, People’s Republic of China
| | - Zhihua Wang
- School of Medicine, Weifang University of Science and Technology, Weifang, 262700, People’s Republic of China
| | - Guohua Yu
- Department of Oncology, Weifang People’s Hospital, Weifang, 261000, People’s Republic of China
| | - Guixiang Tian
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, People’s Republic of China
| | - Zhiqin Gao
- School of Life Science and Technology, Shandong Second Medical University, Weifang, 261053, People’s Republic of China
| | - Qing Wang
- Department of Stomatology, Weifang People’s Hospital, Weifang, 261000, People’s Republic of China
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Wu S, Zhang J, Peng C, Ma Y, Tian X. SIRT6 mediated histone H3K9ac deacetylation involves myocardial remodelling through regulating myocardial energy metabolism in TAC mice. J Cell Mol Med 2023; 27:3451-3464. [PMID: 37603612 PMCID: PMC10660608 DOI: 10.1111/jcmm.17915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023] Open
Abstract
Pathological myocardial remodelling is the initial factor of chronic heart failure (CHF) and is induced by multiple factors. We previously demonstrated that histone acetylation is involved in CHF in transverse aortic constriction (TAC) mice, a model for pressure overload-induced heart failure. In this study, we investigated whether the histone deacetylase Sirtuin 6 (SIRT6), which mediates deacetylation of histone 3 acetylated at lysine 9 (H3K9ac), is involved pathological myocardial remodelling by regulating myocardial energy metabolism and explored the underlying mechanisms. We generated a TAC mouse model by partial thoracic aortic banding. TAC mice were injected with the SIRT6 agonist MDL-800 at a dose of 65 mg/kg for 8 weeks. At 4, 8 and 12 weeks after TAC, the level of H3K9ac increased gradually, while the expression of SIRT6 and vascular endothelial growth factor A (VEGFA) decreased gradually. MDL-800 reversed the effects of SIRT6 on H3K9ac in TAC mice and promoted the expression of VEGFA in the hearts of TAC mice. MDL-800 also attenuated mitochondria damage and improved mitochondrial respiratory function through upregulating SIRT6 in the hearts of TAC mice. These results revealed a novel mechanism in which SIRT6-mediated H3K9ac level is involved pathological myocardial remodelling in TAC mice through regulating myocardial energy metabolism. These findings may assist in the development of novel methods for preventing and treating pathological myocardial remodelling.
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Affiliation(s)
- Shuqi Wu
- Department of Pediatrics, Guizhou Children's HospitalAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Jiaojiao Zhang
- Department of Pediatrics, Guizhou Children's HospitalAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Chang Peng
- Department of Pediatrics, Guizhou Children's HospitalAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Yixiang Ma
- Department of Pediatrics, Guizhou Children's HospitalAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Xiaochun Tian
- Department of Pediatrics, Guizhou Children's HospitalAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
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3
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Sun S, Xu Y, Yu N, Zhang M, Wang J, Wan D, Tian Z, Zhu H. Catalpol Alleviates Ischemic Stroke Through Promoting Angiogenesis and Facilitating Proliferation and Differentiation of Neural Stem Cells via the VEGF-A/KDR Pathway. Mol Neurobiol 2023; 60:6227-6247. [PMID: 37439957 DOI: 10.1007/s12035-023-03459-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 06/22/2023] [Indexed: 07/14/2023]
Abstract
Stroke is one of the leading causes of disability and death globally with a lack of effective therapeutic strategies. Catalpol is a bioactive compound derived from the traditional Chinese medicine Rehmannia glutinosa and it has been shown to be protective against various neurological diseases. The potential roles of catalpol against ischemic stroke are still not completely clear. In this study, we examined the effect and mechanism of catalpol against ischemic stroke using in vivo rat distal middle cerebral artery occlusion (dMCAO) and in vitro oxygen-glucose deprivation (OGD) models. We demonstrated that catalpol indeed attenuated the neurological deficits caused by dMCAO and improved neurological function. Catalpol remarkably promoted angiogenesis, promoted proliferation and differentiation of neural stem cells (NSCs) in the subventricular zone (SVZ), and prevented neuronal loss and astrocyte activation in the ischemic cortex or hippocampal dentate gyrus (DG) in vivo. The vascular endothelial growth factor receptor 2 (KDR, VEGFR-2) inhibitor SU5416 and VEGF-A shRNA were used to investigate the underlying mechanisms. The results showed that SU5416 administration or VEGF-A-shRNA transfection both attenuated the effects of catalpol. We also found that catalpol promoted the proliferation of cultured brain microvascular endothelial cells (BMECs) and the proliferation and differentiation of NSCs subjected to OGD insult in vitro. Interestingly, the impact of catalpol on cultured cells was also inhibited by SU5416. Moreover, catalpol was shown to protect NSCs against OGD indirectly by promoting BMEC proliferation in the co-cultured system. Taken together, catalpol showed therapeutic potential in cerebral ischemia by promoting angiogenesis and NSC proliferation and differentiation. The protective effects of catalpol were mediated through VEGF-A/KDR pathway activation.
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Affiliation(s)
- Si Sun
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Yitong Xu
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Ningxi Yu
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Meifeng Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Jinghui Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China
| | - Dong Wan
- Department of Emergency and Critical Care Medicine, First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Zhen Tian
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China.
| | - Huifeng Zhu
- College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China.
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Xie Y, Sun Y, Liu Y, Zhao J, Liu Q, Xu J, Qin Y, He R, Yuan F, Wu T, Duan C, Jiang L, Lu H, Hu J. Targeted Delivery of RGD-CD146 +CD271 + Human Umbilical Cord Mesenchymal Stem Cell-Derived Exosomes Promotes Blood-Spinal Cord Barrier Repair after Spinal Cord Injury. ACS NANO 2023; 17:18008-18024. [PMID: 37695238 DOI: 10.1021/acsnano.3c04423] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Spinal cord injury (SCI) disrupts the blood-spinal cord barrier (BSCB), potentially exacerbating nerve damage and emphasizing the criticality of preserving the BSCB integrity during SCI treatment. This study explores an alternative therapeutic approach for SCI by identifying a subpopulation of exosomes with stable BSCB function and achieving a specific targeted delivery. Specific subpopulations of CD146+CD271+ umbilical cord mesenchymal stem cells (UCMSCs) were isolated, from which engineered exosomes (RGD-CD146+CD271+ UCMSC-Exos) with targeted neovascularization function were obtained through gene transfection. In vivo and in vitro experiments were performed to explore the targeting and therapeutic effects of RGD-CD146+CD271+ UCMSC-Exos and the potential mechanisms underlying BSCB stabilization and neural function recovery. The results demonstrated that RGD-CD146+CD271+ UCMSC-Exos exhibited physical and chemical properties similar to those of regular exosomes. Notably, following intranasal administration, RGD-CD146+CD271+ UCMSC-Exos exhibited enhanced aggregation at the SCI center and demonstrated the specific targeting of neovascular endothelial cells. In the SCI model, intranasal administration of RGD-CD146+CD271+ UCMSC-Exos reduced Evans blue dye leakage, increased tight junction protein expression, and improved neurological function recovery. In vitro testing revealed that RGD-CD146+CD271+ UCMSC-Exos treatment significantly reduced the permeability of bEnd.3 cells subjected to oxygen-glucose deprivation, thereby restoring the integrity of tight junctions. Moreover, further exploration of the molecular mechanism underlying BSCB stabilization by CD146+CD271+ UCMSC-Exos identified the crucial role of the miR-501-5p/MLCK axis in this process. In conclusion, targeted delivery of RGD-CD146+CD271+ UCMSC-Exos presents a promising and effective treatment option for SCI.
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Affiliation(s)
- Yong Xie
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yi Sun
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yudong Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jinyun Zhao
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Quanbo Liu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jiaqi Xu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Yiming Qin
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Rundong He
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Feifei Yuan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Tianding Wu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Chunyue Duan
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Liyuan Jiang
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
| | - Jianzhong Hu
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha 410005, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha 410005, China
- Hunan Engineering Research Center of Sports and Health, Changsha 410005, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410005, China
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5
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Zhang GK, Ren J, Li JP, Wang DX, Wang SN, Shi LY, Li CY. Injectable hydrogel made from antler mesenchyme matrix for regenerative wound healing via creating a fetal-like niche. World J Stem Cells 2023; 15:768-780. [PMID: 37545751 PMCID: PMC10401419 DOI: 10.4252/wjsc.v15.i7.768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/09/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023] Open
Abstract
BACKGROUND Scar formation and loss of cutaneous appendages are the greatest challenges in cutaneous wound healing. Previous studies have indicated that antler reserve mesenchyme (RM) cells and their conditioned medium improved regenerative wound healing with partial recovery of cutaneous appendages.
AIM To develop hydrogels from the antler RM matrix (HARM) and evaluate the effect on wound healing.
METHODS We prepared the hydrogels from the HARM via enzymatic solubilization with pepsin. Then we investigated the therapeutic effects of HARM on a full-thickness cutaneous wound healing rat model using both local injections surrounding the wound and topical wound application.
RESULTS The results showed that HARM accelerated wound healing rate and reduced scar formation. Also, HARM stimulated the regeneration of cutaneous appendages and blood vessels, and reduced collagen fiber aggregation. Further study showed that these functions might be achieved via creating a fetal-like niche at the wound site. The levels of fetal wound healing-related genes, including Collagen III and TGFβ3 treated with HARM were all increased, while the expression levels of Collagen I, TGFβ1, and Engrailed 1 were decreased in the healing. Moreover, the number of stem cells was increased in the fetal-like niche created by HARM, which may contribute to the regeneration of cutaneous appendages.
CONCLUSION Overall, we successfully developed an injectable hydrogel made from antler RM matrix for the regenerative repair of full-thickness cutaneous wounds. We uncovered the molecular mechanism of the hydrogels in promoting regenerative wound healing, and thus pave the way for HARM to be developed for the clinic use.
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Affiliation(s)
- Guo-Kun Zhang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
| | - Jing Ren
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, Jilin Province, China
| | - Ji-Ping Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
| | - Dong-Xu Wang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
| | - Sheng-Nan Wang
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
| | - Li-Yan Shi
- China-Japan Union Hospital, Jilin University, Changchun 130033, Jilin Province, China
| | - Chun-Yi Li
- Institute of Antler Science and Product Technology, Changchun Sci-Tech University, Changchun 130600, Jilin Province, China
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, Jilin Province, China
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Liu Y, Zhu S, Liu J, Chen Y, Zhong S, Lian D, Liang J, Huang S, Hou S. Vitexin Regulates Angiogenesis and Osteogenesis in Ovariectomy-Induced Osteoporosis of Rats via the VDR/PI3K/AKT/eNOS Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:546-556. [PMID: 36538589 DOI: 10.1021/acs.jafc.2c07005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
It is extremely important to promote angiogenesis-dependent osteogenesis and ameliorate bone loss for the prevention and treatment of osteoporosis (OP) development. Vitexin, as one of the major active components in pigeonpea leave, promoted the proliferation of osteoblast and HUVECs in hypoxia. The present study aimed to investigate the effect of vitexin on alleviating osteoporosis in ovariectomized (OVX) rats and further explore its underlying mechanisms. Herein, the OVX rat model was established and treated with vitexin (10 mg kg-1) for 3 months. After being sacrificed, we performed hematoxylin-eosin (H&E) staining and micro-computed tomography (micro-CT) to assess bone mass, which found that trabecular bone was damaged in the OVX rat model. Vitexin could repair bone injury and promote osteoblast biochemical indicators and angiogenesis indicators. Furthermore, EAhy926 cells were used to further explore the effect of vitexin on improving hypoxia-induced endothelial injury in vitro. Vitexin had a protective effect on hypoxia-treated EAhy926 cells and up-regulated vitamin D receptor (VDR) signaling and promoted phosphorylation of phosphatidylinositol-3-kinase (PI3K), protein kinase B (AKT), and endothelial NO synthase (eNOS), which enhanced endothelial cell migration and tube formation. VDR small-interfering RNA (siRNA) transfection significantly decreased both VDR and p-eNOS proteins, and VDR siRNA transfection + vitexin could not further increase VDR and downstream proteins. Overall, this study presented that vitexin regulates angiogenesis and osteogenesis in ovariectomy-induced osteoporosis of rats via the VDR/eNOS signaling pathway.
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Affiliation(s)
- Ying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Shumin Zhu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Jiaying Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Yonger Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Shaowen Zhong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Dawei Lian
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Jian Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Song Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, PR China
| | - Shaozhen Hou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
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7
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Ma C, Zhao Y, Ding X, Gao B. Hypoxic Training Ameliorates Skeletal Muscle Microcirculation Vascular Function in a Sirt3-Dependent Manner. Front Physiol 2022; 13:921763. [PMID: 35923237 PMCID: PMC9340254 DOI: 10.3389/fphys.2022.921763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 06/15/2022] [Indexed: 11/20/2022] Open
Abstract
Hypoxic training improves the microcirculation function of human skeletal muscle, but its mechanism is still unclear. Silent information regulator 2 homolog 3 (Sirt3) can improve mitochondrial function and oxidative status. We aimed to examine the role of Sirt3 in the process of hypoxic training, which affects skeletal muscle microcirculation. C57BL/6 mice were assigned to control (C), hypoxic training (HT), Sirt3 inhibitor 3-(1H-1,2,3-triazol-4-yl) pyridine (3-TYP), and 3-TYP + hypoxic training (3-TYP + HT) groups (n = 6/group). Sirt3 inhibition was induced by intraperitoneal injection of Sirt3 inhibitor 3-TYP. After 6 weeks of intervention, microcirculatory capillary formation and vasomotor capacity were evaluated using immunofluorescence, Western blot, biochemical tests, and transmission electron microscopy (TEM). Laser Doppler flowmetry was used to evaluate skeletal muscle microcirculation blood flow characteristics. Six weeks of hypoxic training enhanced skeletal muscle microcirculation function and increased microcirculatory vasodilation capacity and capillary formation. After the pharmacological inhibition of Sirt3, the reserve capacity of skeletal muscle microcirculation was reduced to varying degrees. After the inhibition of Sirt3, mice completed the same hypoxic training, and we failed to observe the microcirculation function adaptation like that observed in hypoxic training alone. The microcirculation vasodilation and the capillaries number did not improve. Hypoxic training improved skeletal muscle microcirculation vasodilation capacity and increased skeletal muscle microcirculation capillary density. Sirt3 is involved in the adaptation of skeletal muscle microcirculation induced by hypoxic training.
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Affiliation(s)
- Chunwei Ma
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- Department of Physical Education, Yuncheng University, Yuncheng, China
| | - Yongcai Zhao
- College of Social Sport and Health Sciences, Tianjin University of Sport, Tianjin, China
| | - Xiaoqing Ding
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Binghong Gao
- School of Physical Education and Sport Training, Shanghai University of Sport, Shanghai, China
- *Correspondence: Binghong Gao,
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8
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Li X, Li Y, Wang Y, Liu F, Liu Y, Liang J, Zhan R, Wu Y, Ren H, Zhang X, Liu J. Sinensetin suppresses angiogenesis in liver cancer by targeting the VEGF/VEGFR2/AKT signaling pathway. Exp Ther Med 2022; 23:360. [PMID: 35493423 PMCID: PMC9019764 DOI: 10.3892/etm.2022.11287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/15/2022] [Indexed: 11/06/2022] Open
Abstract
Sinensetin (SIN) is a polymethoxy flavone primarily present in citrus fruits. This compound has demonstrated anticancer activity. However, the underlying mechanism of its action has not been fully understood. The present study investigated the impact of SIN on angiogenesis in a liver cancer model. In a murine xenograft tumor model, SIN inhibited the growth of HepG2/C3A human liver hepatoma cell-derived tumors and reduced the expression levels of platelet/endothelial cell adhesion molecule-1 and VEGF. In HepG2/C3A cells, SIN repressed VEGF expression by downregulating hypoxia-inducible factor expression. In cultured human umbilical vein endothelial cells, SIN increased apoptosis and repressed migration and tube formation. In addition, SIN decreased the phosphorylation of VEGFR2 and inhibited the AKT signaling pathway. Molecular docking demonstrated that the VEGFR2 core domain effectively combined with SIN at various important residues. Collectively, these data suggested that SIN inhibited liver cancer angiogenesis by regulating VEGF/VEGFR2/AKT signaling.
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Affiliation(s)
- Xiaο Li
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Yan Li
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Yuan Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Fuhong Liu
- Laboratory of Microvascular Medicine, Medical Research Center, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, Shandong 250014, P.R. China
| | - Yanjun Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Jiangjiu Liang
- Department of Gerontology, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, P.R. China
| | - Rucai Zhan
- Department of Neurosurgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong 250014, P.R. China
| | - Yue Wu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - He Ren
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Xiuyuan Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
| | - Ju Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shangdong 250355, P.R. China
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Slavinsky AA, Verevkin AA. [Impaired production of platelet-endothelial cell adhesion molecules as an early diagnostic marker of heart transplant rejection]. Arkh Patol 2022; 84:5-10. [PMID: 36178216 DOI: 10.17116/patol2022840515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Reveal the involvement of platelet-endothelial cell adhesion molecules PECAM-1 in the transplanted heart rejection pathogenesis and determine the CD31 marker significance for biopsy diagnostics of the process form and degree. MATERIAL AND METHODS Sections from endomyocardial biopsies of 56 heart transplant recipients were stained with hematoxylin and eosin. The streptavidin-biotin method was used to determine the expression of T-lymphocytes (CD3), B-lymphocytes (CD20), macrophages (CD68) and the C4d component of complement to determine the form and degree of graft rejection. Additionally, the expression of platelet-endothelial cell adhesion molecules PECAM-1 (CD31) was detected. Using computer morphometry in digital images, the area of pathological changes and the area of CD31 expression was measured with the calculation of the staining area coefficient. RESULTS The highest levels of PECAM-1 expression were found in the absence of a heart transplant rejection. The degree of rejection of 1R is characterized by a decrease in expression by 1.3 times, when there are no significant signs of necrosis in the myocardium, the area of which increases sharply at degree 2R by 163.7 times, and at 3R by 570.7 times compared with 1R. The process proceeds in parallel with a further decrease in the level of CD31 expression and is accompanied by the development of hemorrhagic manifestations. The intensity of hemorrhages in the myocardium increases by 7.3 times with grade 3R compared with 1R. CONCLUSION Expression of PECAM-1 reflects the state of the vascular bed of the heart transplant. Its decrease can be considered as an early pathomorphological marker of transplanted heart rejection. The expression of CD31 continues to decrease with increasing severity of rejection and is accompanied by the progressive development of necrosis and hemorrhages in the graft heart muscle.
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Affiliation(s)
| | - A A Verevkin
- Kuban State Medical University, Krasnodar, Russia
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Liu Y, Wang X, Hu F, Rausch-Fan X, Steinberg T, Lan Z, Zhang X. The effect of modifying the nanostructure of gelatin fiber scaffolds on early angiogenesis in vitroand in vivo. Biomed Mater 2021; 17. [PMID: 34808608 DOI: 10.1088/1748-605x/ac3c3c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 11/22/2021] [Indexed: 01/01/2023]
Abstract
Early angiogenesis is one of the key challenges in tissue regeneration. Crosslinking mode and fiber diameter are critical factors to affect the adhesion and proliferation of cells. However, whether and how these two factors affect early angiogenesis remain largely unknown. To address the issue, the optimal crosslinking mode and fiber diameter of gelatin fiber membrane for early angiogenesisin vivoandin vitrowere explored in this work. Compared with the post crosslinked gelatin fiber membrane with the same fiber diameter, the 700 nm diameterin situcrosslinked gelatin fiber membrane was found to have smaller roughness (230.67 ± 19 nm) and stronger hydrophilicity (54.77° ± 1.2°), which were suitable for cell growth and adhesion. Moreover, thein situcrosslinked gelatin fiber membrane with a fiber diameter of 1000 nm had significant advantages in early angiogenesis over the two with fiber diameters of 500 and 700 nm by up-regulating the expression of Ang1, VEGF, and integrin-β1. Our findings indicated that thein situcrosslinked gelatin fiber membrane with a diameter of 1000 nm might solve the problem of insufficient blood supply in the early stage of soft tissue regeneration and has broad clinical application prospects in promoting tissue regeneration.
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Affiliation(s)
- Yanyi Liu
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong 510280, People's Republic of China.,Shenzhen Stomatological Hospital, Southern Medical University, Shenzhen, Guangdong 518001, People's Republic of China
| | - Xiaoxue Wang
- Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde, Foshan), Foshan, Guangdong 528308, People's Republic of China
| | - Fei Hu
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong 510280, People's Republic of China
| | - Xiaohui Rausch-Fan
- Division of Conservative Dentistry, Periodontology and Prophylaxis, Clinic Research Center, Dental Clinic, Medical University of Vienna, Vienna, Austria
| | - Thorsten Steinberg
- Division of Oral Biotechnology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Zedong Lan
- Shenzhen Stomatological Hospital, Southern Medical University, Shenzhen, Guangdong 518001, People's Republic of China
| | - Xueyang Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong 510280, People's Republic of China.,Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde, Foshan), Foshan, Guangdong 528308, People's Republic of China
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Wang HB, Qin Y, Yang JY. Research on the prognosis of different types of microvessels in bladder transitional cell carcinoma. World J Clin Cases 2021; 9:7381-7390. [PMID: 34616805 PMCID: PMC8464470 DOI: 10.12998/wjcc.v9.i25.7381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND At present, there is controversy on the role of microvessel density (MVD) in tumors as a prognostic indicator of bladder transitional cell carcinoma (BTCC). However, the MVD in tumors is simply classified based on the expression of several different vascular markers, which has not been related to analytical research on the prognosis of patients with BTCC.
AIM To explore the classification of blood vessels in tumors and studied the relationship between MVD and the prognosis of patients with BTCC.
METHODS The tissue mass was detected by tissue microarray and immunohistochemical analysis with monoclonal antibodies against CD31, CD34, CD105, and vascular smooth muscle actin to investigate the MVD in BTCC. The measurement data are expressed as the mean ± SD. The difference between the groups was analyzed by the t-test, the counting data were analyzed by χ2 test. The Kaplan-Meier survival curve was estimated by the product-limit method. The log-rank time-series test was employed to compare the tumor-free survival curves.
RESULTS The MVD was closely related to the pathological grade, invasive depth, and prognosis of BTCC. Significant differences were found between grade I and grade II, grade II and grade III, superficial and invasive type, and the tumor-free survival group and the recurrence or metastasis group (P < 0.01). Multivariate analysis showed that undifferentiated MVD was an independent prognostic factor for patient survival time. An inverse correlation between undifferentiated tumor MVD and differentiated tumor MVD in BTCC was also shown.
CONCLUSION The classification of blood vessels in BTCC could act as an important prognostic indicator and may also be of great significance in the treatment of cancer.
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Affiliation(s)
- Hai-Bo Wang
- Department of Urology Surgery, Dalian Municipal Friendship Hospital, Dalian 116001, Liaoning Province, China
| | - Yi Qin
- Department of Science and Education, Dalian Municipal Friendship Hospital, Dalian 116001, Liaoning Province, China
| | - Jin-Yi Yang
- Department of Urology Surgery, Dalian Municipal Friendship Hospital, Dalian 116001, Liaoning Province, China
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Zhang SM, Yang Z, Qi FZ. Alda-1, an Aldehyde Dehydrogenase 2 Agonist, Improves Cutaneous Wound Healing by Activating Epidermal Keratinocytes via Akt/GSK-3β/β-Catenin Pathway. Aesthetic Plast Surg 2021; 46:126-127. [PMID: 34462796 DOI: 10.1007/s00266-021-02550-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Si-Min Zhang
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Zhen Yang
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China
| | - Fa-Zhi Qi
- Department of Plastic and Reconstructive Surgery, Zhongshan Hospital Fudan University, 180 Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.
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