scholarly journals Bone Marrow-Derived Mesenchymal Stem Cells Protect Islet Grafts Against Endoplasmic Reticulum Stress-Induced Apoptosis During the Early Stage After Transplantation

Stem Cells ◽  
2018 ◽  
Vol 36 (7) ◽  
pp. 1045-1061 ◽  
Author(s):  
Ying He ◽  
Dongmei Zhang ◽  
Yi Zeng ◽  
Junlei Ma ◽  
Jing Wang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Endoplasmic Reticulum ◽  
Mesenchymal Stem Cells ◽  
Endoplasmic Reticulum Stress ◽  
Early Stage ◽  
Induced Apoptosis

Endoplasmic reticulum stress contributes to arsenic trioxide-induced intrinsic apoptosis in human umbilical and bone marrow mesenchymal stem cells

2014 ◽  
Vol 31 (3) ◽  
pp. 314-328 ◽  
Author(s):  
Yih-An King ◽  
Yu-Jen Chiu ◽  
Hao-Ping Chen ◽  
Daih-Huang Kuo ◽  
Chi-Cheng Lu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Endoplasmic Reticulum ◽  
Mesenchymal Stem Cells ◽  
Endoplasmic Reticulum Stress ◽  
Arsenic Trioxide ◽  
Intrinsic Apoptosis ◽  
Marrow Mesenchymal Stem Cells

scholarly journals PARK7 promotes repair in early steroid-induced osteonecrosis of the femoral head by enhancing resistance to stress-induced apoptosis in bone marrow mesenchymal stem cells via regulation of the Nrf2 signaling pathway

2021 ◽  
Vol 12 (10) ◽  
Author(s):  
Fei Zhang ◽  
Yanglin Yan ◽  
Wuxun Peng ◽  
Lei Wang ◽  
Tao Wang ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Femoral Head ◽  
Early Stage ◽  
Necrotic Area ◽  
Nrf2 Signaling Pathway ◽  
Marrow Mesenchymal Stem Cells ◽  
Resistance To Stress ◽  
Induced Apoptosis

AbstractNovel therapies for the treatment of early steroid-induced osteonecrosis of the femoral head (SONFH) are urgently needed in orthopedics. Transplantation of bone marrow mesenchymal stem cells (BMSCs) provides new strategies for treating this condition at the early stage. However, stress-induced apoptosis of BMSCs transplanted into the femoral head necrotic area limits the efficacy of BMSC transplantation. Inhibiting BMSC apoptosis is key to improving the efficacy of this procedure. In our previous studies, we confirmed that Parkinson disease protein 7 (PARK7) is active in antioxidant defense and can clear reactive oxygen species (ROS), protect the mitochondria, and impart resistance to stress-induced apoptosis in BMSCs. In this study, we investigated the mechanism driving this PARK7-mediated resistance to apoptosis in BMSCs. Our results indicate that PARK7 promoted the disintegration of nuclear factor (erythroid-derived 2)–like 2 (Nrf2)/Kelch-like echinacoside–associated protein 1 (Keap1) complex. The free Nrf2 then entered the nucleus and activated the genetic expression of manganese superoxide dismutase (MnSOD), catalase (CAT), glutathione peroxidase (GPx), and other antioxidant enzymes that clear excessive ROS, thereby protecting BMSCs from stress-induced apoptosis. To further explore whether PARK7-mediated resistance to stress-induced apoptosis could improve the efficacy of BMSC transplantation in early-stage SONFH, we transplanted BMSCs-overexpressing PARK7 into rats with early-stage SONFH. We then evaluated the survival of transplanted BMSCs and bone regeneration in the femoral head necrotic area of these rats. The results indicated that PARK7 promoted the survival of BMSCs in the osteonecrotic area and improved the transplantation efficacy of BMSCs on early-stage SONFH. This study provides new ideas and methods for resisting the stress-induced apoptosis of BMSCs and improving the transplantation effect of BMSCs on early-stage SONFH.

scholarly journals Induction of Apoptosis Coupled to Endoplasmic Reticulum Stress through Regulation of CHOP and JNK in Bone Marrow Mesenchymal Stem Cells from Patients with Systemic Lupus Erythematosus

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Genkai Guo ◽  
Yan Meng ◽  
Wei Tan ◽  
Yunfei Xia ◽  
Chun Cheng ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Stem Cells ◽  
Bone Marrow ◽  
Endoplasmic Reticulum ◽  
Mesenchymal Stem Cells ◽  
Endoplasmic Reticulum Stress ◽  
Lupus Erythematosus ◽  
B Cell Lymphoma ◽  
Systemic Lupus ◽  
Marrow Mesenchymal Stem Cells

Previous studies indicated that bone marrow mesenchymal stem cells (BM-MSCs) from patients with systemic lupus erythematosus (SLE) exhibited the phenomenon of apoptosis. In this study, we aimed to investigate whether apoptosis of BM-MSCs from SLE patients were dysregulated. In this paper, endoplasmic reticulum stress (ERS) was evidenced by increased expression of phosphorylated protein kinase RNA-like ER kinase (PERK) and inositol-requiring protein-1 (IRE-1). We also found the activation of downstream target eukaryotic translation initiator factor 2α(eIF 2α) and CCAAT/enhancer-binding protein- (C/EBP-) homologous protein (CHOP) in BM-MSCs from SLE patients. Interestingly, we discovered that 4-phenylbutyric acid (4-PBA), a selective inhibitor of ERS, blocked the apoptosis of BM-MSCs from SLE patients and alleviated the level of Jun N-terminal kinase1/2 (JNK1/2) and CHOP. Furthermore, blockage of PERK signaling expression by siRNA not only significantly reduced the expression of CHOP, but also activated the anti-apoptotic regulator B-cell lymphoma-2 (Bcl-2). Blockage of IRE-1 or JNK1/2 by siRNA resulted in the decreased expression of JNK1/2 and proapoptosis protein Bcl-2 associated protein X (BAX). These results implicated that ERS-mediated apoptosis was a critical determinant of BM-MSCs from SLE patients.

Exosomal MicroRNA-204 Derived from Bone Marrow Mesenchymal Stem Cells (BMSCs) Inhibits Cell Proliferation and Induces Apoptosis Through NF-κB Signaling Pathway in Breast Cancer

2022 ◽  
Vol 12 (2) ◽  
pp. 273-278
Author(s):  
Daqing Jiang ◽  
Xianxin Xie ◽  
Cong Wang ◽  
Weijie Li ◽  
Jianjun He
Keyword(s):  
Breast Cancer ◽  
Stem Cells ◽  
Bone Marrow ◽  
Cell Proliferation ◽  
Mesenchymal Stem Cells ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Marrow Mesenchymal Stem Cells ◽  
Induced Apoptosis ◽  
Signaling Activation

Our study intends to assess the relationship between exosomes derived from bone marrow mesenchymal stem cells (BMSC-exo) and breast cancer. BMSC-exo were isolated and characterized by transmission electron microscopy. After transfection of BMSCs with miR-204 inhibitor, breast cancer cells were incubated with BMSC-exo followed by analysis of cell proliferation by CCK-8 assay, cell apoptosis by flow cytometry, and expression of apoptosis-related protein and NF-κB signaling by western blot. The co-culture of BMSC-exo with breast cancer cells enhanced miR-204 transcription, inhibited cell proliferation and induced apoptosis. Further, BMSC-exo accelerated apoptosis as demonstrated by the increased level of Bax and casepase-3 and decreased Bcl-2 expression, as well as reduced NF-κB signaling activity. But knockdown of miR-204 abolished the effect of BMSC-exo on apoptosis and proliferation with NF-κB signaling activation. In conclusion, miR-204 from BMSC-exo restrains growth of breast cancer cell and might be a novel target for treating breast cancer.

scholarly journals Iron depletion with deferoxamine protects bone marrow-derived mesenchymal stem cells against oxidative stress-induced apoptosis

2020 ◽  
Vol 25 (6) ◽  
pp. 1059-1069 ◽  
Author(s):  
Nasrin Khoshlahni ◽  
Mohsen Sagha ◽  
Tooba Mirzapour ◽  
Mahin Nikougoftar Zarif ◽  
Mohammad Mohammadzadeh-Vardin
Keyword(s):  
Oxidative Stress ◽  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Iron Depletion ◽  
Induced Apoptosis
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