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Wang Z, Wang MD, Wang XC, Chen L, Li LF, Jiang LN, Xu JH, Kai Dang. High levels of mitochondrial dynamics, autophagy, and apoptosis contribute to stable testicular status in hibernating Daurian ground squirrels. Comp Biochem Physiol A Mol Integr Physiol 2024; 297:111705. [PMID: 39032767 DOI: 10.1016/j.cbpa.2024.111705] [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] [Received: 03/11/2024] [Revised: 06/26/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Daurian ground squirrels (Spermophilus dauricus) experience various stress states during winter hibernation, but the impact on testicular function remains unclear. This study focused on the effects of changes in testicular autophagy, apoptosis, and mitochondrial homeostasis signaling pathways at various stages on the testes of Daurian ground squirrels. Results indicated that: (1) During winter hibernation, there was a significant increase in seminiferous tubule diameter and seminiferous epithelium thickness compared to summer. Spermatogonia number and testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels were higher during inter-bout arousal, suggesting that the testes remained stable during hibernation. (2) An increased number of mitochondria with intact morphology were observed during hibernation, indicating that mitochondrial homeostasis may contribute to testicular stability. (3) DNA fragmentation was evident in the testes during the hibernation and inter-bout arousal stages, with the highest level of caspase3 enzyme activity detected during inter-bout arousal, together with elevated levels of Bax/Bcl-2 and Lc3 II/Lc3 I, indicating an up-regulation of apoptosis and autophagy signaling pathways during hibernation. (4) The abundance of DRP1, MFF, OPA1, and MFN2 proteins was increased, suggesting an up-regulation of mitochondrial dynamics-related pathways. Overall, testicular autophagy, apoptosis, and mitochondrial homeostasis-related signaling pathways were notably active in the extreme winter environment. The well-maintained mitochondrial morphology may favor the production of reproductive hormones and support stable testicular morphology.
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Affiliation(s)
- Zhe Wang
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Ming-Di Wang
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Xing-Chen Wang
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Le Chen
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Lu-Fan Li
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Li-Na Jiang
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Jin-Hui Xu
- School of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China
| | - Kai Dang
- School of Life Sciences, Northwestern Polytechnical University, 710072 Xi'an, China
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2
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Mystek P, Singh V, Horváth M, Honzejková K, Riegerová P, Evci H, Hof M, Obšil T, Šachl R. The minimal membrane requirements for BAX-induced pore opening upon exposure to oxidative stress. Biophys J 2024:S0006-3495(24)00564-2. [PMID: 39188056 DOI: 10.1016/j.bpj.2024.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 07/18/2024] [Accepted: 08/22/2024] [Indexed: 08/28/2024] Open
Abstract
Perforation of the outer mitochondrial membrane triggered by BAX and facilitated by its main activator cBID is a fundamental process in cell apoptosis. Here, we employ a newly designed correlative approach based on a combination of a fluorescence cross correlation binding with a calcein permeabilization assay to understand the involvement of BAX in pore formation under oxidative stress conditions. To mimic the oxidative stress, we enriched liposomal membranes by phosphatidylcholines with truncated sn-2 acyl chains terminated by a carboxyl or aldehyde moiety. Our observations revealed that oxidative stress enhances proapoptotic conditions involving accelerated pore-opening kinetics. This enhancement is achieved through increased recruitment of BAX to the membrane and facilitation of BAX membrane insertion. Despite these effects, the fundamental mechanism of pore formation remained unchanged, suggesting an all-or-none mechanism. In line with this mechanism, we demonstrated that the minimal number of BAX molecules at the membrane necessary for pore formation remains constant regardless of BAX activation by cBID or the presence of oxidized lipids. Overall, our findings give a comprehensive picture of the molecular mechanisms underlying apoptotic pore formation and highlight the selective amplifying role of oxidized lipids in triggering formation of membrane pores.
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Affiliation(s)
- Paweł Mystek
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Vandana Singh
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Matěj Horváth
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Karolína Honzejková
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Petra Riegerová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Hüseyin Evci
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic; Department of Chemistry, Faculty of Science, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Tomáš Obšil
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Radek Šachl
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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Yun X, Niedermeyer S, Andrade MR, Jiang H, Suresh K, Kolb T, Damarla M, Shimoda LA. Aquaporin 1 confers apoptosis resistance in pulmonary arterial smooth muscle cells from the SU5416 hypoxia rat model. Physiol Rep 2024; 12:e16156. [PMID: 39175041 PMCID: PMC11341275 DOI: 10.14814/phy2.16156] [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: 03/11/2024] [Revised: 07/09/2024] [Accepted: 07/09/2024] [Indexed: 08/24/2024] Open
Abstract
Pulmonary hypertension (PH) arises from increased pulmonary vascular resistance due to contraction and remodeling of the pulmonary arteries. The structural changes include thickening of the smooth muscle layer from increased proliferation and resistance to apoptosis. The mechanisms underlying apoptosis resistance in PH are not fully understood. In cancer cells, high expression of aquaporin 1 (AQP1), a water channel, is associated with apoptosis resistance. We showed AQP1 protein was expressed in pulmonary arterial smooth muscle cells (PASMCs) and upregulated in preclinical PH models. In this study, we used PASMCs isolated from control male rats and the SU5416 plus hypoxia (SuHx) model to test the role of AQP1 in modulating susceptibility to apoptosis. We found the elevated level of AQP1 in PASMCs from SuHx rats was necessary for resistance to apoptosis and that apoptosis resistance could be conferred by increasing AQP1 in control PASMCs. In exploring the downstream pathways involved, we found AQP1 levels influence the expression of Bcl-2, with enhanced AQP1 levels corresponding to increased Bcl-2 expression, reducing the ratio of BAX to Bcl-2, consistent with apoptosis resistance. These results provide a mechanism by which AQP1 can regulate PASMC fate.
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MESH Headings
- Animals
- Aquaporin 1/metabolism
- Aquaporin 1/genetics
- Apoptosis
- Male
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Pulmonary Artery/cytology
- Rats
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/cytology
- Pyrroles/pharmacology
- Indoles/pharmacology
- Hypoxia/metabolism
- Rats, Sprague-Dawley
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/pathology
- Cells, Cultured
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Proto-Oncogene Proteins c-bcl-2/genetics
- Disease Models, Animal
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Affiliation(s)
- Xin Yun
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Shannon Niedermeyer
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Manuella Ribas Andrade
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Haiyang Jiang
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Karthik Suresh
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Todd Kolb
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Mahendra Damarla
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
| | - Larissa A. Shimoda
- Division of Pulmonary and Critical Care MedicineJohns Hopkins School of MedicineBaltimoreMarylandUSA
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Liu J, Li S, Wang Q, Feng Y, Xing H, Yang X, Guo Y, Guo Y, Sun H, Liu X, Yang S, Mei Z, Zhu Y, Cheng Z, Chen S, Xu M, Zhang W, Wan N, Wang J, Ma Y, Zhang S, Luan X, Xu A, Li L, Wang H, Yang X, Hong Y, Xue H, Yuan X, Hu N, Song X, Wang Z, Liu X, Wang L, Liu Y. Sonrotoclax overcomes BCL2 G101V mutation-induced venetoclax resistance in preclinical models of hematologic malignancy. Blood 2024; 143:1825-1836. [PMID: 38211332 PMCID: PMC11076911 DOI: 10.1182/blood.2023019706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024] Open
Abstract
ABSTRACT Venetoclax, the first-generation inhibitor of the apoptosis regulator B-cell lymphoma 2 (BCL2), disrupts the interaction between BCL2 and proapoptotic proteins, promoting the apoptosis in malignant cells. Venetoclax is the mainstay of therapy for relapsed chronic lymphocytic leukemia and is under investigation in multiple clinical trials for the treatment of various cancers. Although venetoclax treatment can result in high rates of durable remission, relapse has been widely observed, indicating the emergence of drug resistance. The G101V mutation in BCL2 is frequently observed in patients who relapsed treated with venetoclax and sufficient to confer resistance to venetoclax by interfering with compound binding. Therefore, the development of next-generation BCL2 inhibitors to overcome drug resistance is urgently needed. In this study, we discovered that sonrotoclax, a potent and selective BCL2 inhibitor, demonstrates stronger cytotoxic activity in various hematologic cancer cells and more profound tumor growth inhibition in multiple hematologic tumor models than venetoclax. Notably, sonrotoclax effectively inhibits venetoclax-resistant BCL2 variants, such as G101V. The crystal structures of wild-type BCL2/BCL2 G101V in complex with sonrotoclax revealed that sonrotoclax adopts a novel binding mode within the P2 pocket of BCL2 and could explain why sonrotoclax maintains stronger potency than venetoclax against the G101V mutant. In summary, sonrotoclax emerges as a potential second-generation BCL2 inhibitor for the treatment of hematologic malignancies with the potential to overcome BCL2 mutation-induced venetoclax resistance. Sonrotoclax is currently under investigation in multiple clinical trials.
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Affiliation(s)
- Jiuyang Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuran Li
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Qin Wang
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yingcai Feng
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Haimei Xing
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xuefei Yang
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Ying Guo
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yunhang Guo
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Hanzi Sun
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaoxin Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shasha Yang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhu Mei
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yutong Zhu
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhenzhen Cheng
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuaishuai Chen
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Min Xu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Wenjing Zhang
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Nanyan Wan
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Jia Wang
- Department of Bioinformatics, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yanwen Ma
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuo Zhang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xudong Luan
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Aiying Xu
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Lin Li
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Haitao Wang
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaolong Yang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yuan Hong
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Hai Xue
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xi Yuan
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Nan Hu
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaomin Song
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhiwei Wang
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xuesong Liu
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Lai Wang
- Research and Clinical Development, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Ye Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
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5
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Li X, Qian H, Ye H, Zhao H, Cui J, Fang X, Ge Z, Shi J, Qi W, Ye L. DEHP induces apoptosis and autophagy of the thyroid via Rap1 signaling pathway: In vivo and in vitro study. Food Chem Toxicol 2024; 187:114609. [PMID: 38522500 DOI: 10.1016/j.fct.2024.114609] [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] [Received: 12/08/2023] [Revised: 03/08/2024] [Accepted: 03/20/2024] [Indexed: 03/26/2024]
Abstract
OBJECTIVE DEHP has thyroid toxicity and affects thyroid function. However, the mechanism is unclear. METHODS The offspring of SD rats were gavaged with different doses of DEHP from in utero to 8 or 12 weeks old. We observed the thyroid morphology with HE and autophagosomes with TEM. The THs levels were tested with ELISA. The apoptosis level was tested by flow cytometry. The levels of apoptosis-related genes, autophagy-related genes and Rap1 pathway genes, were measured with qRT-PCR and Western blot. We established an MEHP-treated Nthy-ori 3-1 cell model and inhibited the Rap1 to verify the mechanism. RESULTS DEHP could cause pathological damage and ultrastructure damage of thyroids in offspring rats. After DEHP exposure, the THs levels were altered, the apoptosis levels increased, and autophagosomes appeared. DEHP significantly affected the levels of apoptosis-related genes and autophagy-related genes. DEHP also affected the levels of Rap1 pathway, which was correlated with the levels of apoptosis and autophagy. After inhibiting Rap1 in Nthy-ori 3-1 cells, the THs levels were altered. Rap1 pathway was inhibited and the levels of apoptosis and autophagy were down-regulated. CONCLUSION DEHP could induce the apoptosis and autophagy of the thyroid, and Rap1 signaling pathway may play a significant role.
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Affiliation(s)
- Xu Li
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Honghao Qian
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Hui Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Haotang Zhao
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Jianwei Cui
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Xiaoqi Fang
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Zhili Ge
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Jingjing Shi
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China
| | - Wen Qi
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China.
| | - Lin Ye
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, 130021, China.
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6
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Guan Y, Cao M, Wu X, Yan J, Hao Y, Zhang C. CD28 null T cells in aging and diseases: From biology to assessment and intervention. Int Immunopharmacol 2024; 131:111807. [PMID: 38471362 DOI: 10.1016/j.intimp.2024.111807] [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] [Received: 01/02/2024] [Revised: 02/25/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
CD28null T cells, an atypical subset characterized by the loss of CD28 costimulatory molecule expression, exhibit functional variants and progressively expand with age. Moreover, T cells with these phenotypes are found in both typical and atypical humoral immune responses. Consequently, they accumulate during infectious diseases, autoimmune disorders, cardiovascular conditions, and neurodegenerative ailments. To provide an in-depth review of the current knowledge regarding CD28null T cells, we specifically focus on their phenotypic and functional characteristics as well as their physiological roles in aging and diseases. While uncertainties regarding the clinical utility remains, we will review the following two crucial research perspectives to explore clinical translational applications of the research on this specific T cell subset: 1) addressing the potential utility of CD28null T cells as immunological markers for prognosis and adverse outcomes in both aging and disease, and 2) speculating on the potential of targeting CD28null T cells as an interventional strategy for preventing or delaying immune aging processes and disease progression.
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Affiliation(s)
- Yuqi Guan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Ming Cao
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Xiaofen Wu
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Jinhua Yan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China
| | - Yi Hao
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Cuntai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China; Key Laboratory of Vascular Aging, Ministry of Education, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan 430030, China.
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7
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Zhu S, Liu J, Wang Q, Yang Y, Du L, Qiu X, Qi R, Wang J. Resolvin D1 alleviates apoptosis triggered by endoplasmic reticulum stress in IPEC-J2 cells. BMC Vet Res 2024; 20:125. [PMID: 38561794 PMCID: PMC10983747 DOI: 10.1186/s12917-023-03820-z] [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: 06/01/2023] [Accepted: 11/22/2023] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Resolvin D1 (RvD1), a specialized pro-resolving lipid mediator (SPM), is derived from docosahexaenoic acid (DHA). It plays a key role in actively resolving inflammatory responses, which further reduces small intestinal damage. However, its regulation of the apoptosis triggered by endoplasmic reticulum (ER) stress in intestinal epithelial cells is still poorly understood. The intestinal porcine epithelial cells (IPEC-J2) were stimulated with tunicamycin to screen an optimal stimulation time and concentration to establish an ER stress model. Meanwhile, RvD1 (0, 1, 10, 20, and 50 nM) cytotoxicity and its impact on cell viability and the effective concentration for reducing ER stress and apoptosis were determined. Finally, the effects of RvD1 on ER stress and associated apoptosis were furtherly explored by flow cytometry analysis, AO/EB staining, RT-qPCR, and western blotting. RESULTS The ER stress model of IPEC-J2 cells was successfully built by stimulating the cells with 1 µg/mL tunicamycin for 9 h. Certainly, the increased apoptosis and cell viability inhibition also appeared under the ER stress condition. RvD1 had no cytotoxicity, and its concentration of 1 nM significantly decreased cell viability inhibition (p= 0.0154) and the total apoptosis rate of the cells from 14.13 to 10.00% (p= 0.0000). RvD1 at the concentration of 1 nM also significantly reduced the expression of glucose-regulated protein 78 (GRP-78, an ER stress marker gene) (p= 0.0000) and pro-apoptotic gene Caspase-3 (p= 0.0368) and promoted the expression of B cell lymphoma 2 (Bcl-2, an anti-apoptotic gene)(p= 0.0008). CONCLUSIONS Collectively, the results shed light on the potential of RvD1 for alleviating apoptosis triggered by ER stress, which may indicate an essential role of RvD1 in maintaining intestinal health and homeostasis.
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Affiliation(s)
- Siyuan Zhu
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Jingbo Liu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Qi Wang
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China
| | - Yong Yang
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Lei Du
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, P. R. China
| | - Xiaoyu Qiu
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China
| | - Renli Qi
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China.
| | - Jing Wang
- Chongqing Academy of Animal Sciences, Chongqing, 402460, P. R. China.
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8
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Sobh EA, Dahab MA, Elkaeed EB, Alsfouk AA, Ibrahim IM, Metwaly AM, Eissa IH. Computer aided drug discovery (CADD) of a thieno[2,3- d]pyrimidine derivative as a new EGFR inhibitor targeting the ribose pocket. J Biomol Struct Dyn 2024; 42:2369-2391. [PMID: 37129193 DOI: 10.1080/07391102.2023.2204500] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Depending on the pharmacophoric characteristics of EGFR inhibitors, a new thieno[2,3-d]pyrimidine derivative has been developed. Firstly, the potential inhibitory effect of the designed compound against EGFR has been proven by docking experiments that showed correct binding modes and excellent binding energies of -98.44 and -88.00 kcal/mol, against EGFR wild-type and mutant type, respectively. Furthermore, MD simulations studies confirmed the precise energetic, conformational, and dynamic alterations that occurred after binding to EGFR. The correct binding was also confirmed by essential dynamics studies. To further investigate the general drug-like properties of the developed candidate, in silico ADME and toxicity studies have also been carried out. The thieno[2,3-d]pyrimidine derivative was synthesized following the earlier promising findings. Fascinatingly, the synthesized compound (4) showed promising inhibitory effects against EGFRWT and EGFRT790M with IC50 values of 25.8 and 182.3 nM, respectively. Also, it exhibited anticancer potentialities against A549 and MCF-7cell lines with IC50 values of 13.06 and 20.13 µM, respectively. Interestingly, these strong activities were combined with selectivity indices of 2.8 and 1.8 against the two cancer cell lines, respectively. Further investigations indicated the ability of compound 4 to arrest the cancer cells' growth at the G2/M phase and to increase early and late apoptosis percentages from 2.52% and 2.80 to 17.99% and 16.72%, respectively. Additionally, it was observed that compound 4 markedly increased the levels of caspase-3 and caspase-9 by 4 and 3-fold compared to the control cells. Moreover, it up-regulated the level of BAX by 3-fold and down-regulated the level of Bcl-2 by 3-fold affording a BAX/Bcl-2 ratio of 9.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Eman A Sobh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, Menoufia, Egypt
| | - Mohammed A Dahab
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia
| | - Aisha A Alsfouk
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ibrahim M Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Ahmed M Metwaly
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
- Biopharmaceutical Products Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Alexandria, Egypt
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
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9
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Qasem B, Dąbrowska A, Króliczewski J, Łyczko J, Marycz K. Trodusquemine (MSI-1436) Restores Metabolic Flexibility and Mitochondrial Dynamics in Insulin-Resistant Equine Hepatic Progenitor Cells (HPCs). Cells 2024; 13:152. [PMID: 38247843 PMCID: PMC10814577 DOI: 10.3390/cells13020152] [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: 11/18/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
Equine metabolic syndrome (EMS) is a significant global health concern in veterinary medicine. There is increasing interest in utilizing molecular agents to modulate hepatocyte function for potential clinical applications. Recent studies have shown promising results in inhibiting protein tyrosine phosphatase (PTP1B) to maintain cell function in various models. In this study, we investigated the effects of the inhibitor Trodusquemine (MSI-1436) on equine hepatic progenitor cells (HPCs) under lipotoxic conditions. We examined proliferative activity, glucose uptake, and mitochondrial morphogenesis. Our study found that MSI-1436 promotes HPC entry into the cell cycle and protects them from palmitate-induced apoptosis by regulating mitochondrial dynamics and biogenesis. MSI-1436 also increases glucose uptake and protects HPCs from palmitate-induced stress by reorganizing the cells' morphological architecture. Furthermore, our findings suggest that MSI-1436 enhances 2-NBDG uptake by increasing the expression of SIRT1, which is associated with liver insulin sensitivity. It also promotes mitochondrial dynamics by modulating mitochondria quantity and morphotype as well as increasing the expression of PINK1, MFN1, and MFN2. Our study provides evidence that MSI-1436 has a positive impact on equine hepatic progenitor cells, indicating its potential therapeutic value in treating EMS and insulin dysregulation.
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Affiliation(s)
- Badr Qasem
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; (B.Q.); (A.D.); (J.K.)
| | - Agnieszka Dąbrowska
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; (B.Q.); (A.D.); (J.K.)
| | - Jarosław Króliczewski
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; (B.Q.); (A.D.); (J.K.)
| | - Jacek Łyczko
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, 50-375 Wrocław, Poland;
| | - Krzysztof Marycz
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Sciences, Norwida 27B, 50-375 Wrocław, Poland; (B.Q.); (A.D.); (J.K.)
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, CA 95516, USA
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10
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Zhao Q, Yu M, Li J, Guo Y, Wang Z, Hu K, Xu F, Liu Y, Li L, Wan D, Zhao Y, Shang J, Zhang J. GLUD1 inhibits hepatocellular carcinoma progression via ROS-mediated p38/JNK MAPK pathway activation and mitochondrial apoptosis. Discov Oncol 2024; 15:8. [PMID: 38216781 PMCID: PMC10786780 DOI: 10.1007/s12672-024-00860-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024] Open
Abstract
Glutamate dehydrogenase 1 (GLUD1) is an important enzyme in glutamine metabolism. Previously, we found GLUD1 was down-regulated in tumor tissues of hepatocellular carcinoma (HCC) patients by proteomics study. To explore its role in the progression of HCC, the expressional level of GLUD1 was firstly examined and presented as that both the protein and mRNA levels were down-regulated in tumor tissues compared to the normal liver tissues. GLUD1 overexpression significantly inhibited HCC cells proliferation, migration, invasion and tumor growth both in vitro and in vivo, while GLUD1 knocking-down promoted HCC progression. Metabolomics study of GLUD1 overexpressing and control HCC cells showed that 129 differentially expressed metabolites were identified, which mainly included amino acids, bases, and phospholipids. Moreover, metabolites in mitochondrial oxidative phosphorylation system (OXPHOS) were differentially expressed in GLUD1 overexpressing cells. Mechanistic studies showed that GLUD1 overexpression enhanced mitochondrial respiration activity and reactive oxygen species (ROS) production. Excessive ROS lead to mitochondrial apoptosis that was characterized by increased expression levels of p53, Cytochrome C, Bax, Caspase 3 and decreased expression level of Bcl-2. Furthermore, we found that the p38/JNK MAPK pathway was activated in GLUD1 overexpressing cells. N-acetylcysteine (NAC) treatment eliminated cellular ROS and blocked p38/JNK MAPK pathway activation, as well as cell apoptosis induced by GLUD1 overexpression. Taken together, our findings suggest that GLUD1 inhibits HCC progression through regulating cellular metabolism and oxidative stress state, and provide that ROS generation and p38/JNK MAPK pathway activation as promising methods for HCC treatment.
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Affiliation(s)
- Qianwei Zhao
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Mengdan Yu
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
- School of Basic Medical Sciences, Academy of Medical Science, Zhengzhou University, Zhengzhou, 450052, China
| | - Jinxia Li
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
- School of Basic Medical Sciences, Academy of Medical Science, Zhengzhou University, Zhengzhou, 450052, China
| | - Yaoyu Guo
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
- BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Zexuan Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
- BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Kefei Hu
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
- BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Fang Xu
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Yixian Liu
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Lili Li
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Didi Wan
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Ying Zhao
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Jian Shang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China.
| | - Jintao Zhang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450052, China.
- Henan Key Medical Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450052, China.
- Henan Key Laboratory of Tumor Epidemiology and State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, 450052, China.
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11
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Ai Y, Meng Y, Yan B, Zhou Q, Wang X. The biochemical pathways of apoptotic, necroptotic, pyroptotic, and ferroptotic cell death. Mol Cell 2024; 84:170-179. [PMID: 38181758 DOI: 10.1016/j.molcel.2023.11.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/16/2023] [Accepted: 11/30/2023] [Indexed: 01/07/2024]
Abstract
Apoptosis, the first regulated form of cell death discovered in mammalian cells, is executed by caspase-3/7, which are dormant in living cells but become activated by upstream caspase-8 or caspase-9 in responding to extracellular cytokines or intracellular stress signals, respectively. The same cell death-inducing cytokines also cause necroptosis when caspase-8 is inhibited, resulting in the activation of receptor-interacting protein kinase 3 (RIPK3), which phosphorylates pseudokinase MLKL to trigger its oligomerization and membrane-disrupting activity. Caspase-1/4/5/11, known as inflammatory caspases, instead induce pyroptosis by cleaving gasdermin D, whose caspase-cleaved N terminus forms pores on the plasma membrane. The membrane protein NINJ1 amplifies the extent of membrane rupture initiated by gasdermin D. Additionally, disturbance of peroxidation of polyunsaturated fatty acid tails of membrane phospholipids triggers ferroptosis, an iron-dependent and caspases-independent necrotic death. This review will discuss how these regulated cell death pathways act individually and interconnectively in particular cell types to carry out specific physiological and pathological functions.
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Affiliation(s)
- Youwei Ai
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yutong Meng
- National Institute of Biological Sciences, Beijing and Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, No. 7 Life Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Bo Yan
- Department of Neurology, Institute of Neuroimmunology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Qinyi Zhou
- National Institute of Biological Sciences, Beijing and Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, No. 7 Life Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Xiaodong Wang
- National Institute of Biological Sciences, Beijing and Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, No. 7 Life Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China.
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12
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Zhao R, He T, Xing Y, Luo J. COG1410 regulates microglial states and protects retinal ganglion cells in retinal ischemia-reperfusion injury. Exp Eye Res 2023; 237:109678. [PMID: 37839665 DOI: 10.1016/j.exer.2023.109678] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/26/2023] [Accepted: 10/12/2023] [Indexed: 10/17/2023]
Abstract
Progressive loss of retinal ganglion cells (RGCs) caused by retinal ischemia-reperfusion (IR) injury can lead to irreversible vision impairment, with neuroinflammatory responses playing an important role in this process. COG1410, a mimetic peptide of apolipoprotein E, has demonstrated protective potential in the central nervous system, but its effects on retinal IR injury remain unexplored. In this study, we established a mouse model of retinal IR injury to investigate the effects of COG1410 on retinal microglia and RGCs. We observed CD16/32-marked and CD206-marked microglia and RGCs using immunofluorescence staining, detected the expression of inflammatory factors by PCR, and evaluated retinal apoptosis with TUNEL staining. We further investigated the potential mechanism by detecting the expression of key proteins via Western blot. The results reveal that COG1410 decreased the number of CD16/32-marked microglia and increased the number of CD206-marked microglia, alleviated the expression of IL-1β and TNF-α, and reduced the loss of RGCs by inhibiting the mitochondrial-related apoptotic pathway. COG1410 was found to increase the expression of ERK1/2 and Nr4a1 but decrease the expression of NF-κB. The expression of TREM2 showed an increasing trend after COG1410 administration, but it was not statistically significant. In conclusion, COG1410 regulates microglial states and protects RGCs in retinal IR injury, showing promising potential for the treatment of eye diseases.
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Affiliation(s)
- Ru Zhao
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Jinyuan Luo
- Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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13
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Sobh EA, Dahab MA, Elkaeed EB, Alsfouk BA, Ibrahim IM, Metwaly AM, Eissa IH. A novel thieno[2,3-d]pyrimidine derivative inhibiting vascular endothelial growth factor receptor-2: A story of computer-aided drug discovery. Drug Dev Res 2023; 84:1247-1265. [PMID: 37232504 DOI: 10.1002/ddr.22083] [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] [Received: 01/22/2023] [Revised: 05/06/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023]
Abstract
Following the pharmacophoric features of vascular endothelial growth factor receptor 2 (VEGFR-2) inhibitors, a novel thieno[2,3-d]pyrimidine derivative has been designed and its activity against VEGFR-2 has been demonstrated by molecular docking studies that showed an accurate binding mode and an excellent binding energy. Furthermore, the recorded binding was confirmed by a series of molecular dynamics simulation studies, which also revealed precise energetic, conformational, and dynamic changes. Additionally, molecular mechanics with generalized Born and surface area solvation and polymer-induced liquid precursors studies were conducted and verified the results of the MD simulations. Next, in silico absorption, distribution, metabolism, excretion, and toxicity studies have also been conducted to examine the general drug-like nature of the designed candidate. According to the previous results, the thieno[2,3-d]pyrimidine derivative was synthesized. Fascinatingly, it inhibited VEGFR-2 (IC50 = 68.13 nM) and demonstrated strong inhibitory activity toward human liver (HepG2), and prostate (PC3) cell lines with IC50 values of 6.60 and 11.25 µM, respectively. As well, it was safe and showed a high selectivity index against normal cell lines (WI-38). Finally, the thieno[2,3-d]pyrimidine derivative arrested the growth of the HepG2 cells at the G2/M phase inducing both early and late apoptosis. These results were further confirmed through the ability of the thieno[2,3-d]pyrimidine derivative to induce significant changes in the apoptotic genes levels of caspase-3, caspase-9, Bcl-2 associated X-protein, and B-cell lymphoma 2.
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Affiliation(s)
- Eman A Sobh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Menoufia University, Menoufia, Shibin-Elkom, Egypt
| | - Mohammed A Dahab
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Eslam B Elkaeed
- Department of Pharmaceutical Sciences, College of Pharmacy, AlMaarefa University, Riyadh, Saudi Arabia
| | - Bshra A Alsfouk
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ibrahim M Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Ahmed M Metwaly
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
- Biopharmaceutical Products Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), Alexandria, Egypt
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
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14
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Kim J, Seo S, Park JHY, Lee KW, Kim J, Kim JC. Ca 2+-Permeable TRPV1 Receptor Mediates Neuroprotective Effects in a Mouse Model of Alzheimer's Disease via BDNF/CREB Signaling Pathway. Mol Cells 2023; 46:319-328. [PMID: 37070458 PMCID: PMC10183797 DOI: 10.14348/molcells.2023.2156] [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] [Received: 10/12/2022] [Revised: 01/04/2023] [Accepted: 01/06/2023] [Indexed: 04/19/2023] Open
Abstract
Transient receptor potential vanilloid 1 (TRPV1) protein is a Ca2+-permeable non-selective cation channel known for its pain modulation pathway. In a previous study, it was discovered that a triple-transgenic Alzheimer's disease (AD) mouse model (3xTg-AD+/+) has anti-AD effects. The expression of proteins in the brain-derived neurotrophic factor (BDNF)/cAMP response element binding protein (CREB) pathway in a 3xTg-AD/TRPV1 transgenic mice model was investigated to better understand the AD regulatory effect of TRPV1 deficiency. The results show that TRPV1 deficiency leads to CREB activation by increasing BDNF levels and promoting phosphorylation of tyrosine receptor kinase B (TrkB), extracellular signal-regulated kinase (ERK), protein kinase B (Akt), and CREB in the hippocampus. Additionally, TRPV1 deficiency-induced CREB activation increases the antiapoptotic factor B-cell lymphoma 2 (Bcl-2) gene, which consequently downregulates Bcl-2-associated X (Bax) expression and decreases cleaved caspase-3 and cleaved poly (ADP-ribose) polymerase (PARP), which leads to the prevention of hippocampal apoptosis. In conclusion, TRPV1 deficiency exhibits neuroprotective effects by preventing apoptosis through the BDNF/CREB signal transduction pathway in the hippocampus of 3xTg-AD mice.
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Affiliation(s)
- Juyong Kim
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Sangwoo Seo
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea
| | | | - Ki Won Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea
- Bio-MAX Institute, Seoul National University, Seoul 08826, Korea
- Advanced Institutes of Convergence Technology, Seoul National University, Suwon 16229, Korea
- Center for Food and Bioconvergence, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Jiyoung Kim
- Center for Food and Bioconvergence, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Jin-Chul Kim
- Natural Product Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science & Technology, University of Science and Technology, Daejeon 34113, Korea
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15
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Dai H, Peterson KL, Flatten KS, Meng XW, Venkatachalam A, Correia C, Ramirez-Alvarado M, Pang YP, Kaufmann SH. A BAK subdomain that binds mitochondrial lipids selectively and releases cytochrome C. Cell Death Differ 2023; 30:794-808. [PMID: 36376382 PMCID: PMC9984382 DOI: 10.1038/s41418-022-01083-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 10/20/2022] [Accepted: 10/28/2022] [Indexed: 11/16/2022] Open
Abstract
How BAK and BAX induce mitochondrial outer membrane (MOM) permeabilization (MOMP) during apoptosis is incompletely understood. Here we have used molecular dynamics simulations, surface plasmon resonance, and assays for membrane permeabilization in vitro and in vivo to assess the structure and function of selected BAK subdomains and their derivatives. Results of these studies demonstrate that BAK helical regions α5 and α6 bind the MOM lipid cardiolipin. While individual peptides corresponding to these helical regions lack the full biological activity of BAK, tandem peptides corresponding to α4-α5, α5-α6, or α6-α7/8 can localize exogenous proteins to mitochondria, permeabilize liposomes composed of MOM lipids, and cause MOMP in the absence of the remainder of the BAK protein. Importantly, the ability of these tandem helices to induce MOMP under cell-free conditions is diminished by mutations that disrupt the U-shaped helix-turn-helix structure of the tandem peptides or decrease their lipid binding. Likewise, BAK-induced apoptosis in intact cells is diminished by CLS1 gene interruption, which decreases mitochondrial cardiolipin content, or by BAK mutations that disrupt the U-shaped tandem peptide structure or diminish lipid binding. Collectively, these results suggest that BAK structural rearrangements during apoptosis might mobilize helices involved in specific protein-lipid interactions that are critical for MOMP.
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Affiliation(s)
- Haiming Dai
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA.
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA.
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China.
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, China.
| | - Kevin L Peterson
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA
| | - Karen S Flatten
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA
| | - X Wei Meng
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA
| | | | - Cristina Correia
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA
| | | | - Yuan-Ping Pang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA
| | - Scott H Kaufmann
- Division of Oncology Research, Mayo Clinic, Rochester, MN, 55905, USA.
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, 55905, USA.
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16
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Beg A, Parveen R, Fouad H, Yahia ME, Hassanein AS. Identification of Driver Genes and miRNAs in Ovarian Cancer through an Integrated In-Silico Approach. BIOLOGY 2023; 12:biology12020192. [PMID: 36829472 PMCID: PMC9952540 DOI: 10.3390/biology12020192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/25/2022] [Accepted: 01/05/2023] [Indexed: 01/28/2023]
Abstract
Ovarian cancer is the eighth-most common cancer in women and has the highest rate of death among all gynecological malignancies in the Western world. Increasing evidence shows that miRNAs are connected to the progression of ovarian cancer. In the current study, we focus on the identification of miRNA and its associated genes that are responsible for the early prognosis of patients with ovarian cancer. The microarray dataset GSE119055 used in this study was retrieved via the publicly available GEO database by NCBI for the analysis of DEGs. The miRNA GSE119055 dataset includes six ovarian carcinoma samples along with three healthy/primary samples. In our study, DEM analysis of ovarian carcinoma and healthy subjects was performed using R Software to transform and normalize all transcriptomic data along with packages from Bioconductor. Results: We identified miRNA and its associated hub genes from the samples of ovarian cancer. We discovered the top five upregulated miRNAs (hsa-miR-130b-3p, hsa-miR-18a-5p, hsa-miR-182-5p, hsa-miR-187-3p, and hsa-miR-378a-3p) and the top five downregulated miRNAs (hsa-miR-501-3p, hsa-miR-4324, hsa-miR-500a-3p, hsa-miR-1271-5p, and hsa-miR-660-5p) from the network and their associated genes, which include seven common genes (SCN2A, BCL2, MAF, ZNF532, CADM1, ELAVL2, and ESRRG) that were considered hub genes for the downregulated network. Similarly, for upregulated miRNAs we found two hub genes (PRKACB and TAOK1).
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Affiliation(s)
- Anam Beg
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
- Correspondence: or (A.B.); (R.P.); Tel.: +91-965-049-3477 (R.P.)
| | - Rafat Parveen
- Department of Computer Science, Jamia Millia Islamia, New Delhi 110025, India
- Correspondence: or (A.B.); (R.P.); Tel.: +91-965-049-3477 (R.P.)
| | - Hassan Fouad
- Applied Medical Science Department, CC, King Saud University, Riyadh 11433, Saudi Arabia
| | - M. E. Yahia
- Faculty of Engineering and Natural Sciences, International University of Sarajevo, Hrasnička Cesta 15, Ilidža, 71210 Sarajevo, Bosnia and Herzegovina
| | - Azza S. Hassanein
- Biomedical Engineering Department, Faculty of Engineering, Helwan University, Cairo 11792, Egypt
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17
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Dhote VV, Samundre P, Upaganlawar AB, Ganeshpurkar A. Gene Therapy for Chronic Traumatic Brain Injury: Challenges in Resolving Long-term Consequences of Brain Damage. Curr Gene Ther 2023; 23:3-19. [PMID: 34814817 DOI: 10.2174/1566523221666211123101441] [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] [Received: 04/04/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 02/08/2023]
Abstract
The gene therapy is alluring not only for CNS disorders but also for other pathological conditions. Gene therapy employs the insertion of a healthy gene into the identified genome to replace or replenish genes responsible for pathological disorder or damage due to trauma. The last decade has seen a drastic change in the understanding of vital aspects of gene therapy. Despite the complexity of traumatic brain injury (TBI), the advent of gene therapy in various neurodegenerative disorders has reinforced the ongoing efforts of alleviating TBI-related outcomes with gene therapy. The review highlights the genes modulated in response to TBI and evaluates their impact on the severity and duration of the injury. We have reviewed strategies that pinpointed the most relevant gene targets to restrict debilitating events of brain trauma and utilize vector of choice to deliver the gene of interest at the appropriate site. We have made an attempt to summarize the long-term neurobehavioral consequences of TBI due to numerous pathometabolic perturbations associated with a plethora of genes. Herein, we shed light on the basic pathological mechanisms of brain injury, genetic polymorphism in individuals susceptible to severe outcomes, modulation of gene expression due to TBI, and identification of genes for their possible use in gene therapy. The review also provides insights on the use of vectors and challenges in translations of this gene therapy to clinical practices.
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Affiliation(s)
- Vipin V Dhote
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP, 462044, India
| | - Prem Samundre
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP, 462044, India
| | - Aman B Upaganlawar
- SNJB's Shree Sureshdada Jain College of Pharmacy, Chandwad, Nasik, Maharashtra, 423101, India
| | - Aditya Ganeshpurkar
- Department of Pharmacy, Shri Ram Institute of Technology, Jabalpur, MP, India
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18
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Sawaya K, Abou Najem S, Khawaja G, Khalil M. Proapoptotic and Antiproliferative Effects of the Desert Truffle Terfezia boudieri on Colon Cancer Cell Lines. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:1693332. [PMID: 37064948 PMCID: PMC10104735 DOI: 10.1155/2023/1693332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/08/2023] [Accepted: 02/11/2023] [Indexed: 04/18/2023]
Abstract
Background Colon cancer is the second leading cause of cancer-related mortality, and ranks third among cancers in terms of prevalence. Despite advances in early detection and treatment with chemotherapy and surgery, colon cancer continues to be associated with high recurrence rates, thereby resulting in a heavy disease burden. Moreover, the effectiveness of currently available treatment modalities is limited by the occurrence of toxic side effects. Hence, there is an urgent need to develop alternative treatments. Extracts from the black desert truffle Terfezia boudieri (T. boudieri) have shown promising anticancer properties. However, the cellular mechanisms underlying this activity remain poorly understood. Methods In this study, the colon cancer cell lines HCT-116 and Caco-2 were treated with either water or ethanolic extract of T. boudieri. Cell viability and the half-maximal inhibitory concentration were determined using MTT assays. Then, the activity of the more potent water extract was further verified using crystal violet assays, and its role in inhibiting colony formation and wound healing was investigated. Protein levels of p53, B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X (Bax), cyclin D1 (CCND1), and c-Myc were measured in cells treated with different doses of the water extract. Results Treatment with the water extract of T. boudieri reduced the capacity of cells for wound healing and colony formation in a dose-dependent manner. The Bax/Bcl-2 ratio and p53 expression were elevated in both cell lines. In contrast, the levels of cyclin D1 and c-Myc were suppressed. Conclusion T. boudieri water extract exerted a cytotoxic effect on colon cancer cells, and blocked colony formation and wound healing potentially through inhibition of proliferation. Mechanistically, these effects are attributed to influence the mitochondrial pathway of apoptosis, proteins involved in cellular proliferation, and the cell cycle.
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Affiliation(s)
- Katia Sawaya
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
| | - Sonia Abou Najem
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, Abu Dhabi, UAE
| | - Ghada Khawaja
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
| | - Mahmoud Khalil
- Department of Biological Sciences, Faculty of Science, Beirut Arab University, Beirut, Lebanon
- Molecular Biology Unit, Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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The Photoperiod Regulates Granulosa Cell Apoptosis through the FSH-Nodal/ALK7 Signaling Pathway in Phodopus sungorus. Animals (Basel) 2022; 12:ani12243570. [PMID: 36552491 PMCID: PMC9774567 DOI: 10.3390/ani12243570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
The photoperiod regulates the seasonal reproduction of mammals by affecting the follicle development, for which the granulosa cells provide nutrition. However, the underlying mechanism remains unclear. Here, Djungarian hamsters (Phodopus sungorus) were raised under different photoperiods to study the ovarian status and explore the potential mechanism of the follicle development mediated by the FSH-Nodal/ALK7 signaling pathway. Compared with the moderate daylight (MD) group, the short daylight (SD) group exhibited a significant decrease in the ovarian weight and increase in the atretic follicle number and granulosa cell apoptosis, whereas the long daylight (LD) group showed an increase in the ovarian weight, the growing follicle number, and the antral follicle number, but a decrease in the granulosa cell apoptosis. Based on these findings, the key genes of the Nodal/ALK7 signaling pathway controlling the granulosa cell apoptosis were studied using the quantitative real-time polymerase chain reaction and western blotting. In the SD group, the follicle-stimulating hormone (FSH) concentration significantly decreased and the Nodal/ALK7/Smad signaling pathways were activated, while the phosphatidylinositol 3-kinase (PIK3)/Akt signaling pathway was inhibited. The BAX expression was significantly increased, while the Bcl-xL expression was significantly decreased, leading to an increase in the caspase-3 activity, the granulosa cell apoptosis, and ovarian degeneration. However, in the LD group, the FSH concentration significantly increased, the Nodal/ALK7/Smad signaling pathway was inhibited, and the PIK3/Akt signaling pathway was activated. Taken together, our results indicate that the photoperiod can regulate the apoptosis of the granulosa cells by regulating the concentration of FSH, activating or inhibiting the Nodal/ALK7 signaling pathway, thereby affecting the ovarian function. Our research provides an important theoretical basis for understanding the photoperiod-regulated mechanisms of the mammalian seasonal reproduction.
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20
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Zhao X, Wang S, Xu J, Wang C, Feng Y, Xue H, Wu M, Chen L, Xu L. Effects of short daylight and mild low temperature on mitochondrial degeneration in the testis of
Cricetulus barabensis. Mol Reprod Dev 2022; 89:413-422. [DOI: 10.1002/mrd.23632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/11/2022] [Accepted: 06/29/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Xiang‐Yu Zhao
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Shuo Wang
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Jin‐Hui Xu
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Chuan‐Li Wang
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Yong‐Zhen Feng
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Hui‐Liang Xue
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Ming Wu
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Lei Chen
- College of Life Sciences Qufu Normal University Qufu Shandong China
| | - Lai‐Xiang Xu
- College of Life Sciences Qufu Normal University Qufu Shandong China
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21
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Feng X, Hu W, Hong Y, Ruan L, Hu Y, Liu D. Taurine Ameliorates Iron Overload-Induced Hepatocyte Injury via the Bcl-2/VDAC1-Mediated Mitochondrial Apoptosis Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4135752. [PMID: 35879990 PMCID: PMC9308541 DOI: 10.1155/2022/4135752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 05/20/2022] [Accepted: 05/31/2022] [Indexed: 12/29/2022]
Abstract
Iron overload can induce reactive oxygen species (ROS) burst and liver damage. Taurine can reduce ROS production and ameliorate liver injury caused by iron overload; however, the underlying molecular mechanism remains elusive. Herein, L02 cells treated with 120 μM iron dextran for 48 h showed marked oxidative stress damage and significantly increased apoptosis. Taurine protected hepatocytes by stabilizing mitochondrial membranes and resisting oxidative stress damage caused by iron overload. However, transfection with siRNA Bcl-2 virus abrogated the observed protective effects. Following treatment with taurine, B cell lymphoma-2 (Bcl-2) could inhibit the opening of the mitochondrial permeability transition pore (mPTP), subsequently stabilizing the mitochondrial membrane potential by interacting with voltage-dependent anion channel 1 (VDAC1) of mPTP. The present study is the first to clarify the mechanism underlying taurine-afforded hepatocyte protection against iron overload-induced oxidative stress via Bcl-2-mediated inhibition of mPTP opening and the antiapoptotic pathway.
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Affiliation(s)
- Xiaoyu Feng
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Wenfeng Hu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
- Department of Pharmacy, Jiujiang Traditional Chinese Medicine Hospital, Jiujiang 332900, China
| | - Yujiao Hong
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Linlin Ruan
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Yueben Hu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
| | - Dan Liu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang 330006, China
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Azab AE, Alesawy MS, Eldehna WM, Elwan A, Eissa IH. New [1,2,4]triazolo[4,3-c]quinazoline derivatives as vascular endothelial growth factor receptor-2 inhibitors and apoptosis inducers: Design, synthesis, docking, and antiproliferative evaluation. Arch Pharm (Weinheim) 2022; 355:e2200133. [PMID: 35822666 DOI: 10.1002/ardp.202200133] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 11/10/2022]
Abstract
In continuation of our previous efforts in the field of design and synthesis of vascular endothelial growth factor receptor (VEGFR)-2 inhibitors, a new series of [1,2,4]triazolo[4,3-c]quinazoline derivatives were designed and synthesized as modified analogs of some reported VEGFR-2 inhibitors. The synthesized compounds were designed to have the essential pharmacophoric features of VEGFR-2 inhibitors. Antiproliferative activities of the synthesized compounds were investigated against two tumor cell lines (HepG2 and HCT-116) using sorafenib as a positive control. Compound 10k emerged as the most promising antiproliferative agent with IC50 values of 4.88 and 5.21 µM against HepG2 and HCT-116 cells, respectively. Also, it showed the highest inhibitory activity against VEGFR-2 with an IC50 value of 53.81 nM compared to sorafenib (IC50 = 44.34 nM). Cell cycle analysis revealed that compound 10k can arrest HepG2 cells at both the S and G2/M phases. In addition, this compound produced a tenfold increase in apoptotic cells compared to the control. Furthermore, the effect of compound 10k on the expression level of BAX, Bcl-2, and caspase-3 was assessed. This compound caused a 3.35-fold increase in BAX expression levels and a 1.25-fold reduction in Bcl-2 expression levels. The BAX/Bcl-2 ratio was calculated to be 4.57, indicating a promising apoptotic effect. It also showed a significant increase in the level of caspase-3 (4.12-fold) compared to the control cells. In silico docking, absorption, distribution, metabolism, excretion, and toxicity, and toxicity studies were performed for the synthesized compounds to investigate their binding patterns against the proposed biological target (VEGFR-2) and to assess the drug-likeness characters.
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Affiliation(s)
- Ahmed E Azab
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Mohamed S Alesawy
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt.,School of Biotechnology, Badr University in Cairo, Cairo, Egypt
| | - Alaa Elwan
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
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p53 Isoforms as Cancer Biomarkers and Therapeutic Targets. Cancers (Basel) 2022; 14:cancers14133145. [PMID: 35804915 PMCID: PMC9264937 DOI: 10.3390/cancers14133145] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary The well-known tumor suppressor protein p53 plays important roles in tumor prevention through transcriptional regulation of its target genes. Reactivation of p53 activity has been a potent strategy for cancer treatment. Accumulating evidences indicate that p53 isoforms truncated/modified in the N- or C-terminus can modulate the p53 pathway in a p53-dependent or p53-independent manner. It is thus imperative to characterize the roles of the p53 isoforms in cancer development. This review illustrates how p53 isoforms participate in tumor development and/or suppression. It also summarizes the knowledge about the p53 isoforms as promising cancer biomarkers and therapeutic targets. Abstract This review aims to summarize the implications of the major isoforms of the tumor suppressor protein p53 in aggressive cancer development. The current knowledge of p53 isoforms, their involvement in cell-signaling pathways, and their interactions with other cellular proteins or factors suggests the existence of an intricate molecular network that regulates their oncogenic function. Moreover, existing literature about the involvement of the p53 isoforms in various cancers leads to the proposition of therapeutic solutions by altering the cellular levels of the p53 isoforms. This review thus summarizes how the major p53 isoforms Δ40p53α/β/γ, Δ133p53α/β/γ, and Δ160p53α/β/γ might have clinical relevance in the diagnosis and effective treatments of cancer.
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Ghorbanzadeh V, Jafarpour A, Pirnia A, Pajouhi N, Khaksarian M, Veiskarami S, Nazari A. The role of vasopressin V1A and oxytocin OTR receptors in protective effects of arginine vasopressin against H 2O 2-induced oxidative stress in H9C2 cells. Arch Physiol Biochem 2022; 128:830-835. [PMID: 32141340 DOI: 10.1080/13813455.2020.1729816] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Oxidative stress, has been shown to play an important role in the pathophysiology of cardiac remodelling and heart failure. The aim of study is effect of arginine vasopressin (AVP) on apoptosis of cardiomyocyte via its receptors. MATERIALS AND METHODS The cell viability effect of AVP in H9C2 cardiomyocytes was assayed using the MTT method. The transcription and translation level of apoptosis genes (Bax, Bcl-2, caspase-3) were discovered with qRT-PCR and western blotting. RESULTS The results showed that vasopressin could reduce apoptosis in cardiomyocytes cell line through downregulation of caspase-3, BAX and upregulation of Bcl-2 (p < .001). Also, there was a decrease in anti-apoptosis effect of vasopressin when V1A and OTR receptors were blocked with their antagonists. DISCUSSION These results suggest that activation of V1A and OTR receptors in H9C2 cells mediate protective effect of vasopressin via regulating apoptosis marker that lead to cell survival under conditions of stress oxidative.Key pointAVP may contribute to the improvement of heart ischaemia through its actions on V1A and OTR receptors.
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Affiliation(s)
- Vajihe Ghorbanzadeh
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran
| | - Afsaneh Jafarpour
- Cardiovascular Research Center, Shahid Rahimi Hospital, Lorestan University of Medical Sciences, Khoramabad, Iran
| | - Afshin Pirnia
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran
| | - Naser Pajouhi
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran
- Department of Physiology, Lorestan University of Medical Science, Khorramabad, Iran
| | - Mojtaba Khaksarian
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran
- Department of Physiology, Lorestan University of Medical Science, Khorramabad, Iran
| | - Saeed Veiskarami
- Department of animal science, Lorestan Agricultural and Natural Resources Research and Education Center, Khorramabad, Iran
| | - Afshin Nazari
- Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran
- Cardiovascular Research Center, Shahid Rahimi Hospital, Lorestan University of Medical Sciences, Khoramabad, Iran
- Department of Physiology, Lorestan University of Medical Science, Khorramabad, Iran
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25
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Wang C, Zhang Q, Liu Y, Xu Q. Characterization of EPO H131S as a key mutation site in the hypoxia-adaptive evolution of Gymnocypris dobula. FISH PHYSIOLOGY AND BIOCHEMISTRY 2022; 48:723-733. [PMID: 35553293 DOI: 10.1007/s10695-022-01080-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Erythropoietin (EPO) is a glycoprotein hormone involved in proerythropoiesis, antioxidation, and antiapoptosis. It also contributes to cellular immune function in high-altitude species, such as the schizothoracine fish Gymnocypris dobula. Six mutation sites previously identified in EPO from G. dobula (GD-EPO) were injected into zebrafish embryos, and their effects were compared with EPO from the low-altitude schizothoracine Schizothorax prenanti. The key mutation site in GD-EPO was identified as H131S. Under hypoxic conditions, the levels of superoxide dismutase and malondialdehyde were decreased, whereas that of nitric oxide was increased in zebrafish injected with GD-EPO compared with those injected with S. prenanti-EPO (SP-EPO). The results suggest that EPO in high-altitude schizothoracine species is both antioxidative and antiapoptotic, driven by the H131S mutation site. Thus, this enhanced the ability of this species to adapt to the high-altitude hypoxic environment. These results provide a basis for investigating further the hypoxia adaptation mechanisms of teleosts.
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Affiliation(s)
- Congcong Wang
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai, 201306, People's Republic of China.
- National Distant-Water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Key Laboratory of Ocean Fisheries Exploitation, Ministry of Agriculture and Rural Affairs, Shanghai, 201306, People's Republic of China.
- Shanghai Ocean University, 999 Huchenghuan Road, Lingang New City, Shanghai, 201306, People's Republic of China.
| | - Qin Zhang
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
| | - Yang Liu
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
- Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai, 201306, People's Republic of China
- National Distant-Water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
- Key Laboratory of Ocean Fisheries Exploitation, Ministry of Agriculture and Rural Affairs, Shanghai, 201306, People's Republic of China
| | - Qianghua Xu
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai, 201306, People's Republic of China.
- National Distant-Water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Key Laboratory of Ocean Fisheries Exploitation, Ministry of Agriculture and Rural Affairs, Shanghai, 201306, People's Republic of China.
- Shanghai Ocean University, 999 Huchenghuan Road, Lingang New City, Shanghai, 201306, People's Republic of China.
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LCZ696 ameliorates doxorubicin-induced cardiomyocyte toxicity in rats. Sci Rep 2022; 12:4930. [PMID: 35322164 PMCID: PMC8943022 DOI: 10.1038/s41598-022-09094-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/17/2022] [Indexed: 12/11/2022] Open
Abstract
Doxorubicin (DOX)-based chemotherapy induces cardiotoxicity, which is considered the main bottleneck for its clinical application. In this study, we investigated the potential benefit of LCZ696, an angiotensin receptor-neprilysin inhibitor against DOX-induced cardiotoxicity in rats and H9c2 cells and determined whether the mechanism underlying any such effects involves its antioxidant activity. Male Sprague-Dawley rats were randomly separated into four groups, each consisting of 15 rats (DOX (1.5 mg/kg/day intraperitoneally for 10 days followed by non-treatment for 8 days); DOX + valsartan (31 mg/kg/day by gavage from day 1 to day 18); DOX + LCZ696 (68 mg/kg/day by gavage from day 1 to day 18); and control (saline intraperitoneally for 10 days). DOX-induced elevation of cardiac troponin T levels on day 18 was significantly reduced by LCZ696, but not valsartan. The DOX-induced increase in myocardial reactive oxygen species (ROS) levels determined using dihydroethidium was significantly ameliorated by LCZ696, but not valsartan, and was accompanied by the suppression of DOX-induced increase in p47phox. LCZ696 recovered the DOX-induced decrease in phosphorylation of adenosine monophosphate-activated protein kinase and increased the ratio of Bax and Bcl-2. In H9c2 cardiomyocytes, LCZ696 reduced DOX-induced mitochondrial ROS generation and improved cell viability more than valsartan. Our findings indicated that LCZ696 ameliorated DOX-induced cardiotoxicity in rat hearts in vivo and in vitro, possibly by mediating a decrease in oxidative stress.
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Darvishzadeh Mahani F, Khaksari M, Iranpour M, Soltani Z, Raji-Amirhasani A, Hajializadeh Z. Effects of caloric and time restriction diets on kidney health in rat model of postmenopausal acute kidney injury: An apoptosis and histopathological study. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2022; 25:390-398. [PMID: 35656185 PMCID: PMC9148404 DOI: 10.22038/ijbms.2022.61512.13609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/01/2022] [Indexed: 11/16/2022]
Abstract
Objectives Lifestyle and eating habits affect the health and function of the body's organs, including the kidneys. The current study was carried out to determine the effects of two types of diet programs, including time restriction (TR) and calorie restriction (CR) on the histopathological changes and apoptotic molecules during acute kidney injury (AKI) in postmenopausal rats. Materials and Methods In this study the female rats were divided into two groups of ovariectomized (OVX) and ovary-intact (sham), then they were placed on TR and CR diets for 8 weeks; afterward, AKI was induced by injection of glycerol. Functional indices, histopathological changes, Bax, and Bcl2 were measured before and after AKI. Results After AKI, creatinine, serum urea, urinary albumin excretion, kidney tissue Bax, and Bax/Bcl2 ratio increased, while glomerular filtration rate (GFR) and kidney tissue Bcl2 decreased compared with before AKI. Histopathological indices (inflammation, cellular necrosis, cell vacuolization, tubular dilatation, intratubular cast, and congestion) also confirmed renal injury. TR and CR diets improved renal injury indices and prevented an increase in the Bax/Bcl2 ratio. However, in some indices, the effects of two diets on OVX animals were not observed. In addition, none of the diets could decrease kidney weight/body weight ratio (KW/BW). The histopathological finding also showed improvement of renal status in both groups, especially in the CR diet. Conclusion The results indicated that TR and CR diets had renoprotective effects against AKI by reducing the Bax/Bcl2 ratio and improving apoptosis. The effects of CR were more than TR.
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Affiliation(s)
| | - Mohammad Khaksari
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Iranpour
- Department of pathology, Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Pathology and Stem Cells Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Soltani
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Alireza Raji-Amirhasani
- Endocrinology and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Zahra Hajializadeh
- Physiology Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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Repurposed antipsychotic chlorpromazine inhibits colorectal cancer and pulmonary metastasis by inducing G2/M cell cycle arrest, apoptosis, and autophagy. Cancer Chemother Pharmacol 2022; 89:331-346. [DOI: 10.1007/s00280-021-04386-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/14/2021] [Indexed: 01/18/2023]
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Yao L, Zhang L, Zhou C. Analysis of Prognostic Risk Factors of Sepsis Patients in Intensive Care Unit Based on Data Analysis. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:3746640. [PMID: 35035827 PMCID: PMC8759882 DOI: 10.1155/2022/3746640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/11/2021] [Accepted: 12/15/2021] [Indexed: 11/18/2022]
Abstract
In this paper, a data-enabled analysis of the prognostic risk factors of sepsis patients in the intensive care unit is presented. For this purpose, we have selected 220 sepsis patients, preferably those admitted to the intensive care unit for treatment in a tertiary a hospital in Tianjin from June 2018 to June 2019 and received complete data as the research objects, to explore the prognostic risk factors of sepsis patients in the intensive care unit. All patients met the SSC sepsis diagnosis guidelines and recorded the patients' age, gender, underlying disease, and infection site. Laboratory indicators, such as blood routine, electrolytes, arterial blood gas, liver function, and renal function, were collected within 24 hours of admission. Furthermore, the corresponding specimens were cultured for pathogenic microorganisms according to the site of infection. The LAC value was measured at admission and 24 h after admission, and the 24 h lactate clearance rate was calculated. The Acute Physiological and Chronic Health Status Score II (APACHE-II) and SOFA score were calculated, which were based on the worst value of the index within 24 hours after admission. According to the prognosis of patients during hospitalization, they are divided into two groups: (i) survival group and (ii) death group. We entered all the data into Excel and used SPSS21.0 statistical software for data analysis and processing. Quantitative data are tested for normality. Quantitative data for normal distribution are expressed as mean ± standard deviation, and normal distribution and uniform variance are measured. The factors affecting the prognosis of patients with sepsis were first subjected to a single-factor logistic regression analysis, and a multiple logistic regression analysis was performed on the basis of the significance of the single-factor analysis. The results found that the prognosis of patients with sepsis in the ICU is affected by multiple factors such as underlying diseases, infectious microorganisms, comorbidities, and interventional therapy. APACHE-II score, 24 h lactate clearance rate, ARDS, and DIC are independent risk factors that affect the prognosis of ICU patients.
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Affiliation(s)
- Lina Yao
- Department of ICU, People's Hospital Affiliated to Ningbo University, Ningbo, Zhejiang, China
| | - Lei Zhang
- Department of ICU, People's Hospital Affiliated to Ningbo University, Ningbo, Zhejiang, China
| | - Chengjie Zhou
- Department of ICU, People's Hospital Affiliated to Ningbo University, Ningbo, Zhejiang, China
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Alanazi MM, Alaa E, Alsaif NA, Obaidullah AJ, Alkahtani HM, Al-Mehizia AA, Alsubaie SM, Taghour MS, Eissa IH. Discovery of new 3-methylquinoxalines as potential anti-cancer agents and apoptosis inducers targeting VEGFR-2: design, synthesis, and in silico studies. J Enzyme Inhib Med Chem 2021; 36:1732-1750. [PMID: 34325596 PMCID: PMC8330740 DOI: 10.1080/14756366.2021.1945591] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/02/2021] [Accepted: 06/14/2021] [Indexed: 02/08/2023] Open
Abstract
There is an urgent need to design new anticancer agents that can prevent cancer cell proliferation even with minimal side effects. Accordingly, two new series of 3-methylquinoxalin-2(1H)-one and 3-methylquinoxaline-2-thiol derivatives were designed to act as VEGFR-2 inhibitors. The designed derivatives were synthesised and evaluated in vitro as cytotoxic agents against two human cancer cell lines namely, HepG-2 and MCF-7. Also, the synthesised derivatives were assessed for their VEGFR-2inhibitory effect. The most promising member 11e were further investigated to reach a valuable insight about its apoptotic effect through cell cycle and apoptosis analyses. Moreover, deep investigations were carried out for compound 11e using western-plot analyses to detect its effect against some apoptotic and apoptotic parameters including caspase-9, caspase-3, BAX, and Bcl-2. Many in silico investigations including docking, ADMET, toxicity studies were performed to predict binding affinity, pharmacokinetic, drug likeness, and toxicity of the synthesised compounds. The results revealed that compounds 11e, 11g, 12e, 12g, and 12k exhibited promising cytotoxic activities (IC50 range is 2.1 - 9.8 µM), comparing to sorafenib (IC50 = 3.4 and 2.2 µM against MCF-7 and HepG2, respectively). Moreover, 11b, 11f, 11g, 12e, 12f, 12g, and 12k showed the highest VEGFR-2 inhibitory activities (IC50 range is 2.9 - 5.4 µM), comparing to sorafenib (IC50 = 3.07 nM). Additionally, compound 11e had good potential to arrest the HepG2 cell growth at G2/M phase and to induce apoptosis by 49.14% compared to the control cells (9.71%). As well, such compound showed a significant increase in the level of caspase-3 (2.34-fold), caspase-9 (2.34-fold), and BAX (3.14-fold), and a significant decrease in Bcl-2 level (3.13-fold). For in silico studies, the synthesised compounds showed binding mode similar to that of the reference compound (sorafenib).
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Affiliation(s)
- Mohammed M. Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Elwan Alaa
- Pharmaceutical Medicinal Chemistry and Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Nawaf A. Alsaif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ahmad J. Obaidullah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Hamad M. Alkahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman A. Al-Mehizia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sultan M. Alsubaie
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed S. Taghour
- Pharmaceutical Medicinal Chemistry and Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Ibrahim H. Eissa
- Pharmaceutical Medicinal Chemistry and Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
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31
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Martens MD, Karch J, Gordon JW. The molecular mosaic of regulated cell death in the cardiovascular system. Biochim Biophys Acta Mol Basis Dis 2021; 1868:166297. [PMID: 34718119 DOI: 10.1016/j.bbadis.2021.166297] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 10/07/2021] [Accepted: 10/22/2021] [Indexed: 12/11/2022]
Abstract
Cell death is now understood to be a highly regulated process that contributes to normal development and tissue homeostasis, alongside its role in the etiology of various pathological conditions. Through detailed molecular analysis, we have come to know that all cells do not always die in the same way, and that there are at least 7 processes involved, including: apoptosis, mitochondrial permeability transition (MPT)-driven necrosis, necroptosis, ferroptosis, pyroptosis, parthanatos, and autophagy-mediated cell death. These processes act as pieces in the mosaic of cardiomyocyte cell death, which come together depending on context and stimulus. This review details each individual process, as well as highlights how they come together to produce various cardiac pathologies. By knowing how the pieces go together we can aim towards the development of efficacious therapeutics, which will enable us to prevent cardiomyocyte loss in the face of stress, both reducing mortality and improving quality of life.
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Affiliation(s)
- Matthew D Martens
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Science, University of Manitoba, Winnipeg, Manitoba, Canada; The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, Canada
| | - Jason Karch
- Department of Molecular Physiology and Biophysics, Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, United States
| | - Joseph W Gordon
- Department of Human Anatomy and Cell Science, Rady Faculty of Health Science, University of Manitoba, Winnipeg, Manitoba, Canada; College of Nursing, Rady Faculty of Health Science, University of Manitoba, Winnipeg, Manitoba, Canada; The Diabetes Research Envisioned and Accomplished in Manitoba (DREAM) Theme of the Children's Hospital Research Institute of Manitoba, Canada.
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Kirk JA, Cheung JY, Feldman AM. Therapeutic targeting of BAG3: considering its complexity in cancer and heart disease. J Clin Invest 2021; 131:e149415. [PMID: 34396980 DOI: 10.1172/jci149415] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Bcl2-associated athanogene-3 (BAG3) is expressed ubiquitously in humans, but its levels are highest in the heart, the skeletal muscle, and the central nervous system; it is also elevated in many cancers. BAG3's diverse functions are supported by its multiple protein-protein binding domains, which couple with small and large heat shock proteins, members of the Bcl2 family, other antiapoptotic proteins, and various sarcomere proteins. In the heart, BAG3 inhibits apoptosis, promotes autophagy, couples the β-adrenergic receptor with the L-type Ca2+ channel, and maintains the structure of the sarcomere. In cancer cells, BAG3 binds to and supports an identical array of prosurvival proteins, and it may represent a therapeutic target. However, the development of strategies to block BAG3 function in cancer cells may be challenging, as they are likely to interfere with the essential roles of BAG3 in the heart. In this Review, we present the current knowledge regarding the biology of this complex protein in the heart and in cancer and suggest several therapeutic options.
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Affiliation(s)
- Jonathan A Kirk
- Department of Cell and Molecular Physiology, Loyola University Chicago, Chicago, Illinois, USA
| | - Joseph Y Cheung
- Division of Renal Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Arthur M Feldman
- Department of Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
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Kocabey S, Ekim Kocabey A, Schneiter R, Rüegg C. Membrane-Interacting DNA Nanotubes Induce Cancer Cell Death. NANOMATERIALS 2021; 11:nano11082003. [PMID: 34443832 PMCID: PMC8397952 DOI: 10.3390/nano11082003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/25/2021] [Accepted: 07/30/2021] [Indexed: 12/31/2022]
Abstract
DNA nanotechnology offers to build nanoscale structures with defined chemistries to precisely position biomolecules or drugs for selective cell targeting and drug delivery. Owing to the negatively charged nature of DNA, for delivery purposes, DNA is frequently conjugated with hydrophobic moieties, positively charged polymers/peptides and cell surface receptor-recognizing molecules or antibodies. Here, we designed and assembled cholesterol-modified DNA nanotubes to interact with cancer cells and conjugated them with cytochrome c to induce cancer cell apoptosis. By flow cytometry and confocal microscopy, we observed that DNA nanotubes efficiently bound to the plasma membrane as a function of the number of conjugated cholesterol moieties. The complex was taken up by the cells and localized to the endosomal compartment. Cholesterol-modified DNA nanotubes, but not unmodified ones, increased membrane permeability, caspase activation and cell death. Irreversible inhibition of caspase activity with a caspase inhibitor, however, only partially prevented cell death. Cytochrome c-conjugated DNA nanotubes were also efficiently taken up but did not increase the rate of cell death. These results demonstrate that cholesterol-modified DNA nanotubes induce cancer cell death associated with increased cell membrane permeability and are only partially dependent on caspase activity, consistent with a combined form of apoptotic and necrotic cell death. DNA nanotubes may be further developed as primary cytotoxic agents, or drug delivery vehicles, through cholesterol-mediated cellular membrane interactions and uptake.
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Affiliation(s)
- Samet Kocabey
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland
- Correspondence: (S.K.); (C.R.)
| | - Aslihan Ekim Kocabey
- Department of Biology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 10, PER05, 1700 Fribourg, Switzerland; (A.E.K.); (R.S.)
| | - Roger Schneiter
- Department of Biology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 10, PER05, 1700 Fribourg, Switzerland; (A.E.K.); (R.S.)
| | - Curzio Rüegg
- Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland
- Correspondence: (S.K.); (C.R.)
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Wong Fong Sang IE, Schroer J, Halbhuber L, Warm D, Yang JW, Luhmann HJ, Kilb W, Sinning A. Optogenetically Controlled Activity Pattern Determines Survival Rate of Developing Neocortical Neurons. Int J Mol Sci 2021; 22:6575. [PMID: 34205237 PMCID: PMC8235092 DOI: 10.3390/ijms22126575] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 12/29/2022] Open
Abstract
A substantial proportion of neurons undergoes programmed cell death (apoptosis) during early development. This process is attenuated by increased levels of neuronal activity and enhanced by suppression of activity. To uncover whether the mere level of activity or also the temporal structure of electrical activity affects neuronal death rates, we optogenetically controlled spontaneous activity of synaptically-isolated neurons in developing cortical cultures. Our results demonstrate that action potential firing of primary cortical neurons promotes neuronal survival throughout development. Chronic patterned optogenetic stimulation allowed to effectively modulate the firing pattern of single neurons in the absence of synaptic inputs while maintaining stable overall activity levels. Replacing the burst firing pattern with a non-physiological, single pulse pattern significantly increased cell death rates as compared to physiological burst stimulation. Furthermore, physiological burst stimulation led to an elevated peak in intracellular calcium and an increase in the expression level of classical activity-dependent targets but also decreased Bax/BCL-2 expression ratio and reduced caspase 3/7 activity. In summary, these results demonstrate at the single-cell level that the temporal pattern of action potentials is critical for neuronal survival versus cell death fate during cortical development, besides the pro-survival effect of action potential firing per se.
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Affiliation(s)
| | | | | | | | | | | | | | - Anne Sinning
- Institute of Physiology, University Medical Center Mainz, Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, Germany; (I.E.W.F.S.); (J.S.); (L.H.); (D.W.); (J.-W.Y.); (H.J.L.); (W.K.)
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Alanazi MM, Mahdy HA, Alsaif NA, Obaidullah AJ, Alkahtani HM, Al-Mehizia AA, Alsubaie SM, Dahab MA, Eissa IH. New bis([1,2,4]triazolo)[4,3-a:3',4'-c]quinoxaline derivatives as VEGFR-2 inhibitors and apoptosis inducers: Design, synthesis, in silico studies, and anticancer evaluation. Bioorg Chem 2021; 112:104949. [PMID: 34023640 DOI: 10.1016/j.bioorg.2021.104949] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/08/2021] [Accepted: 04/22/2021] [Indexed: 12/11/2022]
Abstract
A new series of bis([1,2,4]triazolo)[4,3-a:3',4'-c]quinoxaline derivatives were designed and synthesized to have the main essential pharmacophoric features of VEGFR-2 inhibitors. VEGFR-2 inhibitory activities were assessed for the designed compounds. In addition, cytotoxic activity was evaluated for all derivatives against two human cancer cell lines namely, HepG-2 and MCF-7. The most cytotoxic compound 20 h was subjected to further biological investigations including cell cycle, apoptosis, caspase-3, caspase-9, BAX, and Bcl-2 analyses. Different in silico studies as docking, ADMET and toxicity were carried out. The results exhibited that compounds 20b, 20e, 20h and20mshowed promising VEGFR-2 inhibitory activities with IC50values of 5.7, 6.7, 3.2, and 3.1 µM, respectively. Moreover, these promising members exhibited the highest antiproliferative activities against the two cell lines with IC50values ranging from 3.3 to 14.2 µM, comparing to sorafenib (IC50 = 2.17 and 3.43 µM against HepG2 and MCF-7, respectively). Additionally, compound 20h induced cell cycle arrest of HepG2 cells at G2/M phase. Also, such compound increased the progress of apoptosis by 3.5-fold compared to the control. As well, compound 20h showed a significant increase in the level of caspase-3 (2.07-fold), caspase-9 (1.72-fold), and BAX (1.83-fold), and a significant decrease in Bcl-2 level (1.92-fold). The in silico studies revealed that the synthesized compounds have binding pattern like that of sorafenib.
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Affiliation(s)
- Mohammed M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia.
| | - Hazem A Mahdy
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt
| | - Nawaf A Alsaif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Ahmad J Obaidullah
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Hamad M Alkahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Abdulrahman A Al-Mehizia
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Sultan M Alsubaie
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, Saudi Arabia
| | - Mohammed A Dahab
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt.
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11884, Egypt.
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Yang G, Yao G, Xu Z, Fan H, Liu X, He J, Kong Y, Kong D, Bai Y, He Q, Zhang T, Zhang J, Sun Y. Expression Level of ADAMTS1 in Granulosa Cells of PCOS Patients Is Related to Granulosa Cell Function, Oocyte Quality, and Embryo Development. Front Cell Dev Biol 2021; 9:647522. [PMID: 33912563 PMCID: PMC8075003 DOI: 10.3389/fcell.2021.647522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/22/2021] [Indexed: 11/27/2022] Open
Abstract
A disintegrin and metalloproteinase with thrombospondin motifs 1 (ADAMTS1) is an extracellular matrix metalloproteinase that plays an important role in the process of ovulation. According to previous studies, the expression level of ADAMTS1 in the granulosa cells of polycystic ovarian syndrome (PCOS) patients and the mechanism for regulating oocyte quality and embryonic development potential are still unclear. Our research clarified that ADAMTS1 was significantly increased in granulosa cells of PCOS patients as compared to ovulatory controls. After silencing ADAMTS1 in granulosa cells, cell proliferation and E2 secretion were significantly inhibited, which may be related to the down-regulation of B-cell lymphoma 2 (Bcl2) family genes and key genes involved in E2 synthesis. Through retrospective analysis of the clinical data, it was found that the expression level of ADAMTS1 was significantly positively correlated to the oocyte maturation rate and good-quality embryo rate in PCOS patients. The downregulation of ADAMTS1 in primary granulosa cells lead to the changes in the expression of marker genes for oocyte and embryonic quality. By using immunofluorescence staining, it was found ADAMTS1 was expressed in various stages of pre-implantation embryo but its expression level gradually decreases with the development of the embryo. In addition, the silence of ADAMTS1 in 3PN zygotes significantly prolonged the development time of the zygote to the morula stage. This is, to our knowledge, the first time to explored the mechanism by which ADAMST1 is involved in affecting the quality of oocytes and embryonic development potential, which will provide new evidence for further understanding of the follicular microenvironment and embryo development.
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Affiliation(s)
- Guang Yang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guidong Yao
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ziwen Xu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huiying Fan
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xingui Liu
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiahuan He
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yue Kong
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Deqi Kong
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yucheng Bai
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qina He
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwei Zhang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junya Zhang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingpu Sun
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Key Laboratory of Reproduction and Genetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Meng J, Su R, Wang L, Yuan B, Li L. Inhibitory effect and mechanism of action (MOA) of hirsutine on the proliferation of T-cell leukemia Jurkat clone E6-1 cells. PeerJ 2021; 9:e10692. [PMID: 33604171 PMCID: PMC7863788 DOI: 10.7717/peerj.10692] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 12/11/2020] [Indexed: 12/24/2022] Open
Abstract
Background The bark of Uncaria rhynchophylla has been traditionally used to treat convulsion, bleeding, hypertension, auto-immune conditions, cancer, and other diseases. The main focus of this research is done for the purpose of exploring the antitumor activity and mechanism of action (MOA) for hirsutine isolated from U. rhynchophylla. Methods Jurkat clone E6-1 cells were treated using 10, 25 and 50 μM for 48 h. Inhibition of cell proliferation due to hirsutine treatment was evaluated by CCK8 assay. Flow cytometry was applied to ascertain Jurkat cell cycle progression and apoptosis after treatment with 10, 25 and 50 μM hirsutine for 48 h. The expression and level of the apoptosis-related genes and proteins was analyzed by Real-time Quantitative polymerase chain reaction (qPCR) and Western blotting method, respectively. Results CCK8 analyses revealed that hirsutine could significantly inhibit the proliferation of Jurkat clone E6-1 cells, in a concentration and time-dependent fashion. Flow cytometry assays revealed that hirsutine could drive apoptotic death and G0/G1 phase arrest in Jurkat cells. Apoptotic cells frequencies were 4.99 ± 0.51%, 13.69 ± 2.00% and 40.21 ± 15.19%, and respective cell cycle arrest in G0/G1 accounted for 34.85 ± 1.81%, 42.83 ± 0.70% and 49.12 ± 4.07%. Simultaneously, compared with the control group, Western blot assays indicated that the up-regulation of pro-apoptotic Bax, cleaved-caspase3, cleaved-caspase9 and Cyto c proteins, as well as the down-regulation of Bcl-2 protein which guards against cell death, might be correlated with cell death induction and inhibition of cell proliferation. QPCR analyses indicated that hirsutine could diminish BCL2 expression and, at the same time, improve Bax, caspase-3 and caspase-9 mRNA levels, thus reiterating a putative correlation of hirsutine treatment in vitro with apoptosis induction and inhibition of cell proliferation (p-value < 0.05). Excessive hirsutine damages the ultrastructure in mitochondria, leading to the release of Cyt c from the mitochondria to cytoplasm in Jurkat clone E6-1 cells, thereby inducing the activated caspase cascade apoptosis process through a mitochondria-mediated pathway. Conclusion An important bioactive constituent-hirsutine-appears to have antitumor effects in human T-cell leukemia, thus enlightening the use of phytomedicines as a novel source for tumor therapy. It is speculated that hirsutine may induce apoptosis of Jurkat Clone E6-1 cells through the mitochondrial apoptotic pathway.
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Affiliation(s)
- Jie Meng
- Department of Pharmacy, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Hongqiao International Institute of Medicine, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Rui Su
- Department of Pharmacy, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Luping Wang
- Department of Pharmacy, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bo Yuan
- Department of Pharmacy, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ling Li
- Department of Pharmacy, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Kong XT, Wang Z, Mou JJ, Li CS, Xue HL, Wu M, Chen L, Xu JH, Xu LX. Change on apoptosis, autophagy and mitochondria of the Harderian gland in Cricetulus barabensis during age. Comp Biochem Physiol B Biochem Mol Biol 2020; 253:110547. [PMID: 33340652 DOI: 10.1016/j.cbpb.2020.110547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/26/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Harderian gland (HG) plays an important role in the physiological adaptation to terrestrial life, however, the mechanisms underlying the changes in the structure and function of the HG during aging remain unclear. This study investigated autophagy and apoptosis in the HG of striped dwarf hamsters (Cricetulus barabensis) of different ages (sub-adult, adult and aged groups) in both males and females. The results showed that LC3II/LC3I and puncta of LC3 were significantly higher in adult and aged individuals than sub-adults, whereas P62 decreased with age. Bax/bcl2was the highest in sub-adults of male and female individuals. Caspase3 activity was the highest in sub-adults of male and female individuals, and the citrate synthase activity was highest in sub-adults of females. ATP synthase, citrate synthase, dynamin-related protein 1 and mitochondrial fission factor (Mff) were the highest in sub-adults of females. Peptidylglycine α-amidating monooxygenase were the highest in the aged group, and those of gonadotropin-releasing hormone was the highest in the adult group. LC3II/LC3I, P62, Drp1, Fis, and bax/bcl2 were higher in males than that in females. These results suggest that apoptosis mainly affects growth and development in the HG, whereas autophagy affects aging. The difference of the HG weight and mitochondrial function between sexes is mainly related to the apoptosis.
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Affiliation(s)
- Xiao-Tong Kong
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Zhe Wang
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Jun-Jie Mou
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Chang-Sheng Li
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Hui-Liang Xue
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Ming Wu
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Lei Chen
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Jin-Hui Xu
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
| | - Lai-Xiang Xu
- College of Life Sciences, Qufu Normal University, 273165 Qufu, Shandong, China.
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Guruswamy DKM, Balaji KDS, Dharmappa KK, Jayarama S. Novel 3-(3, 5-difluoro-4-hydroxyphenyl)-1-(naphthalen-2-yl) prop-2-en-1-one as a potent inhibitor of MAP-kinase in HeLa cell lines and anti-angiogenic activity is mediated by HIF-1α in EAC animal model. Oncotarget 2020; 11:4661-4676. [PMID: 33400732 PMCID: PMC7747862 DOI: 10.18632/oncotarget.27836] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/12/2020] [Indexed: 01/05/2023] Open
Abstract
In the present investigation, we synthesized chalcone bearing naphthalene compound d1, and on the basis of 1H-NMR, 13C NMR, and LC-MS data we had specified the structure of the synthesized compound. The resultant compound d1 was assessed for their antiproliferative action against human cancer cell lines (HeLa, HCT116, HT29, MDA-MB-231, MCF-7, and SKBR3). The IC50 range was estimated at 5.58 to 11.13 μM shows that compound d1 had remarkable anticancer activity on HeLa cell lines. Besides, it was discovered that d1 incited the mitochondrial apoptotic pathway by controlling Bax and Bcl-2 transcripts by expanding the Caspase 3 activation. We depicted the in-vivo effects of tumor advancement and the antiangiogenic activity of d1 in the EAC animal model. Tumor growth had inhibited and without symptoms the longevity of EAC containing mice expanded by the treatment of d1. Inhibition of nuclear transcriptional factor HIF-1α in EAC cells and finally it also inhibited phosphorylation of downstream signaling proteins such as ERK1/2, p38, and JNK in HeLa cells. The present investigation uncovered that d1 indicated noteworthy tumor-repressing abilities much less concentration in in-vitro and in-vivo recommended that compound d1 as the potent anticancer medication.
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Affiliation(s)
- Dileep Kumar M Guruswamy
- Department of Biotechnology, Teresian College, Siddhartha Nagara Mysore-570011, Karnataka, India
| | | | | | - Shankar Jayarama
- Department of Food Technology, Davanagere University, Karnataka-577002, India
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Xu JH, Wang Z, Mou JJ, Zhao XY, Geng XC, Wu M, Xue HL, Chen L, Xu LX. The effect of autophagy and mitochondrial fission on Harderian gland is greater than apoptosis in male hamsters during different photoperiods. PLoS One 2020; 15:e0241561. [PMID: 33253255 PMCID: PMC7704011 DOI: 10.1371/journal.pone.0241561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/18/2020] [Indexed: 11/28/2022] Open
Abstract
Photoperiod is an important factor of mammalian seasonal rhythm. Here, we studied morphological differences in the Harderian gland (HG), a vital photosensitive organ, in male striped dwarf hamsters (Cricetulus barabensis) under different photoperiods (short photoperiod, SP; moderate photoperiod, MP; long photoperiod, LP), and investigated the underlying molecular mechanisms related to these morphological differences. Results showed that carcass weight and HG weight were lower under SP and LP conditions. There was an inverse correlation between blood melatonin levels and photoperiod in the order SP > MP > LP. Protein expression of hydroxyindole-O-methyltransferase (HIOMT), a MT synthesis-related enzyme, was highest in the SP group. Protein expression of bax/bcl2 showed no significant differences, indicating that the level of apoptosis remained stable. Protein expression of LC3II/LC3I was higher in the SP group than that in the MP group. Furthermore, comparison of changes in the HG ultrastructure demonstrated autolysosome formation in the LP, suggesting the lowest autophagy level in under MP. Furthermore, the protein expression levels of ATP synthase and mitochondrial fission factor were highest in the MP group, whereas citrate synthase, dynamin-related protein1, and fission1 remained unchanged in the three groups. The change trends of ATP synthase and citrate synthase activity were similar to that of protein expression among the three groups. In summary, the up-regulation of autophagy under SP and LP may be a primary factor leading to loss of HG weight and reduced mitochondrial energy supply capacity.
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Affiliation(s)
- Jin-Hui Xu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Zhe Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Jun-Jie Mou
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Xiang-Yu Zhao
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Xiao-Cui Geng
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
- Yiheyuan School, Yiyuan, Shandong, China
| | - Ming Wu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Hui-Liang Xue
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Lei Chen
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Lai-Xiang Xu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
- * E-mail:
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Role of Bcl-2 Family Proteins in Photodynamic Therapy Mediated Cell Survival and Regulation. Molecules 2020; 25:molecules25225308. [PMID: 33203053 PMCID: PMC7696921 DOI: 10.3390/molecules25225308] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/20/2022] Open
Abstract
Photodynamic therapy (PDT) is a treatment modality that involves three components: combination of a photosensitizer, light and molecular oxygen that leads to localized formation of reactive oxygen species (ROS). The ROS generated from this promising therapeutic modality can be lethal to the cell and leads to consequential destruction of tumor cells. However, sometimes the ROS trigger a stress response survival mechanism that helps the cells to cope with PDT-induced damage, resulting in resistance to the treatment. One preferred mechanism of cell death induced by PDT is apoptosis, and B-cell lymphoma 2 (Bcl-2) family proteins have been described as a major determinant of life or death decision of the death pathways. Apoptosis is a cellular self-destruction mechanism to remove old cells through the biological event of tissue homeostasis. The Bcl-2 family proteins act as a critical mediator of a life–death decision of cells in maintaining tissue homeostasis. There are several reports that show cancer cells developing resistance due to the increased interaction of the pro-survival Bcl-2 family proteins. However, the key mechanisms leading to apoptosis evasion and drug resistance have not been adequately understood. Therefore, it is critical to understand the mechanisms of PDT resistance, as well as the Bcl-2 family proteins, to give more insight into the treatment outcomes. In this review, we describe the role of Bcl-2 gene family proteins’ interaction in response to disease progression and PDT-induced resistance mechanisms.
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Ginkgetin Alleviates Inflammation, Oxidative Stress, and Apoptosis Induced by Hypoxia/Reoxygenation in H9C2 Cells via Caspase-3 Dependent Pathway. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1928410. [PMID: 33204684 PMCID: PMC7661124 DOI: 10.1155/2020/1928410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/04/2020] [Accepted: 08/24/2020] [Indexed: 11/18/2022]
Abstract
Ginkgetin, the extract of Ginkgo biloba leaves, has been reported to exert preventive and therapeutic effects on cardiovascular disease. However, little is known about its role in myocardial ischemia-reperfusion injury (MIRI). The present study aimed to unveil the function of ginkgetin in cardiomyocytes subjected to hypoxia/reoxygenation (H/R) injury. Cell Counting Kit-8 (CCK-8) was employed to evaluate the impact of ginkgetin on cell viability in the absence or presence of H/R. Proinflammatory cytokines and malondialdehyde (MDA), reactive oxygen species (SOD), and lactate dehydrogenase (LDH) were determined via corresponding kits. In addition, flow cytometry was performed to detect apoptotic level. Western blot analysis was utilized to estimate caspase-3 and cytochrome C. Ginkgetin had no significant effect on cell viability; however, it could enhance viability of H9C2 cells exposed to H/R. Inflammation and oxidative stress induced by H/R injury were relieved via pretreatment with ginkgetin. Preconditioning of ginkgetin also decreased apoptotic rate and the protein levels of caspase-3, cytochrome C under H/R condition. Furthermore, 2-HBA, an inducer of caspase-3, was used for the activation of caspase-3 signaling pathway. It was found that induction of caspase-3 eliminated the protective effect of ginkgetin on H9C2 cells exposed to H/R. These results indicated that ginkgetin attenuated inflammation, oxidative stress, and apoptosis. These protective roles of ginkgetin may attribute to caspase-3 dependent pathway.
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Wang Z, Xu JH, Mou JJ, Kong XT, Zou JW, Xue HL, Wu M, Xu LX. Novel ultrastructural findings on cardiac mitochondria of huddling Brandt's voles in mild cold environment. Comp Biochem Physiol A Mol Integr Physiol 2020; 249:110766. [DOI: 10.1016/j.cbpa.2020.110766] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/25/2020] [Accepted: 07/09/2020] [Indexed: 10/23/2022]
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Wanderoy S, Hees JT, Klesse R, Edlich F, Harbauer AB. Kill one or kill the many: interplay between mitophagy and apoptosis. Biol Chem 2020; 402:73-88. [PMID: 33544491 DOI: 10.1515/hsz-2020-0231] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/22/2020] [Indexed: 12/15/2022]
Abstract
Mitochondria are key players of cellular metabolism, Ca2+ homeostasis, and apoptosis. The functionality of mitochondria is tightly regulated, and dysfunctional mitochondria are removed via mitophagy, a specialized form of autophagy that is compromised in hereditary forms of Parkinson's disease. Through mitophagy, cells are able to cope with mitochondrial stress until the damage becomes too great, which leads to the activation of pro-apoptotic BCL-2 family proteins located on the outer mitochondrial membrane. Active pro-apoptotic BCL-2 proteins facilitate the release of cytochrome c from the mitochondrial intermembrane space (IMS) into the cytosol, committing the cell to apoptosis by activating a cascade of cysteinyl-aspartate specific proteases (caspases). We are only beginning to understand how the choice between mitophagy and the activation of caspases is determined on the mitochondrial surface. Intriguingly in neurons, caspase activation also plays a non-apoptotic role in synaptic plasticity. Here we review the current knowledge on the interplay between mitophagy and caspase activation with a special focus on the central nervous system.
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Affiliation(s)
- Simone Wanderoy
- Max Planck Institute for Neurobiology, Am Klopferspitz 18, D-82152Martinsried, Germany
| | - J Tabitha Hees
- Max Planck Institute for Neurobiology, Am Klopferspitz 18, D-82152Martinsried, Germany
| | - Ramona Klesse
- Institute for Biochemistry and Molecular Biology, University of Freiburg, D-79104Freiburg, Germany.,Faculty of Biology, University of Freiburg, D-79104Freiburg, Germany
| | - Frank Edlich
- Institute for Biochemistry and Molecular Biology, University of Freiburg, D-79104Freiburg, Germany
| | - Angelika B Harbauer
- Max Planck Institute for Neurobiology, Am Klopferspitz 18, D-82152Martinsried, Germany.,Technical University of Munich, Institute of Neuronal Cell Biology, Munich, Germany.,Munich Cluster for Systems Neurology, Munich, Germany
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Edwards G, Lee Y, Kim M, Bhanvadia S, Kim KY, Ju WK. Effect of Ubiquinol on Glaucomatous Neurodegeneration and Oxidative Stress: Studies for Retinal Ganglion Cell Survival and/or Visual Function. Antioxidants (Basel) 2020; 9:E952. [PMID: 33023026 PMCID: PMC7599950 DOI: 10.3390/antiox9100952] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 01/02/2023] Open
Abstract
Oxidative stress is one of major causal factors in glaucomatous neurodegeneration. Ubiquinol promotes retinal ganglion cell (RGC) survival against glaucomatous insults such as oxidative stress. Here we investigated the effect of ubiquinol on RGC survival and/or visual function in mouse models of glaucoma and oxidative stress. DBA/2J and age-matched DBA/2J-Gpnmb+ (D2-Gpnmb+), which do not develop intraocular pressure elevation, or C57BL/6J mice were fed with ubiquinol (1%) or control diet daily for 5 or 2 months. We assessed RGC survival by Brn3a immunohistochemistry and measured expression levels of active and total BAX, peroxisome proliferator-activated receptor-gamma coactivator 1α, transcription factor A (TFAM) and oxidative phosphorylation (OXPHOS) complex protein. Following induction of oxidative stress by paraquat injection, we also assessed visual function. In glaucomatous retina, ubiquinol supplementation significantly promoted RGC survival, blocked BAX activation and increased TFAM and OXPHOS complex II protein expression. Also, ubiquinol supplementation ameliorated oxidative stress-induced visual dysfunction. These findings indicate that ubiquinol promotes RGC survival by increasing TFAM expression and OXPHOS complex II activity in glaucomatous neurodegeneration, and that ubiquinol enhances RGC survival and preserves visual function against oxidative stress. We propose that ubiquinol has a therapeutic potential for treating oxidative stress-associated glaucomatous neurodegeneration.
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Affiliation(s)
- Genea Edwards
- Hamilton Glaucoma Center and Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA 92039, USA; (G.E.); (Y.L.); (M.K.); (S.B.)
| | - Yonghoon Lee
- Hamilton Glaucoma Center and Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA 92039, USA; (G.E.); (Y.L.); (M.K.); (S.B.)
| | - Martha Kim
- Hamilton Glaucoma Center and Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA 92039, USA; (G.E.); (Y.L.); (M.K.); (S.B.)
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Ilsandong-gu, Goyang-si 10326, Korea
| | - Soham Bhanvadia
- Hamilton Glaucoma Center and Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA 92039, USA; (G.E.); (Y.L.); (M.K.); (S.B.)
| | - Keun-Young Kim
- National Center for Microscopy and Imaging Research, Department of Neurosciences, University of California San Diego, La Jolla, CA 92039, USA;
| | - Won-Kyu Ju
- Hamilton Glaucoma Center and Shiley Eye Institute, Viterbi Family Department of Ophthalmology, University of California San Diego, La Jolla, CA 92039, USA; (G.E.); (Y.L.); (M.K.); (S.B.)
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Shahar N, Larisch S. Inhibiting the inhibitors: Targeting anti-apoptotic proteins in cancer and therapy resistance. Drug Resist Updat 2020; 52:100712. [DOI: 10.1016/j.drup.2020.100712] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/29/2020] [Accepted: 06/05/2020] [Indexed: 12/14/2022]
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Mou J, Xu J, Wang Z, Wang C, Yang X, Wang X, Xue H, Wu M, Xu L. Effects of photoperiod on morphology and function in testis and epididymis of Cricetulus barabensis. J Cell Physiol 2020; 236:2109-2125. [PMID: 32743820 DOI: 10.1002/jcp.29998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 01/03/2023]
Abstract
Photoperiod regulates the seasonal reproductive rhythms of mammals by influencing the development and function of sexual organs; however, the underlying mechanism remains unclear. We examined the morphology and functioning of the main sex organs of striped dwarf hamsters (Cricetulus barabensis) under different photoperiods (short daylight [SD], moderate daylight [MD], and long daylight [LD]) and further investigated the underlying molecular mechanisms. There was an inverse correlation between blood melatonin levels and photoperiod in the order SD > MD > LD. Decreases in body and tissue weights were observed under SD, whereas testis and epididymis weights between MD and LD were comparable. The diameters of the spermatogenic tubules, thickness of the spermatogenic epithelium, and the number of spermatogonia and Sertoli cells decreased under SD, whereas the serum-luteinizing hormone, follicle-stimulating hormone, and fecal testosterone concentrations decreased under LD. In SD, bax/bcl2 protein expression increased in the testes and decreased in the epididymides, whereas LC3II/LC3I remained unchanged in the testes and increased in the epididymides compared with the MD group. In LD, bax/bcl2 and LC3II/LC3I protein expression levels were unchanged in the testes but were decreased in the epididymides. In SD and LD, adenosine triphosphate synthase and citrate synthase protein expression levels were unchanged in the testes but were decreased in the epididymides. Drp1 and Mff protein expression increased in the testes and decreased in the epididymides. Overall, different regulatory mechanisms in the testis and epididymis led to degeneration under SD and maintenance under LD, preferentially protecting mitochondrial function in the testis by regulating mitochondrial fission.
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Affiliation(s)
- Junjie Mou
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Jinhui Xu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Zhe Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Chuanli Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Xueqi Yang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Xingchen Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Huiliang Xue
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Ming Wu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
| | - Laixiang Xu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong, China
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Deng H, Yue JK, Zusman BE, Nwachuku EL, Abou-Al-Shaar H, Upadhyayula PS, Okonkwo DO, Puccio AM. B-Cell Lymphoma 2 (Bcl-2) and Regulation of Apoptosis after Traumatic Brain Injury: A Clinical Perspective. MEDICINA (KAUNAS, LITHUANIA) 2020; 56:E300. [PMID: 32570722 PMCID: PMC7353854 DOI: 10.3390/medicina56060300] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/13/2022]
Abstract
Background and Objectives: The injury burden after head trauma is exacerbated by secondary sequelae, which leads to further neuronal loss. B-cell lymphoma 2 (Bcl-2) is an anti-apoptotic protein and a key modulator of the programmed cell death (PCD) pathways. The current study evaluates the clinical evidence on Bcl-2 and neurological recovery in patients after traumatic brain injury (TBI). Materials and Methods: All studies in English were queried from the National Library of Medicine PubMed database using the following search terms: (B-cell lymphoma 2/Bcl-2/Bcl2) AND (brain injury/head injury/head trauma/traumatic brain injury) AND (human/patient/subject). There were 10 investigations conducted on Bcl-2 and apoptosis in TBI patients, of which 5 analyzed the pericontutional brain tissue obtained from surgical decompression, 4 studied Bcl-2 expression as a biomarker in the cerebrospinal fluid (CSF), and 1 was a prospective randomized trial. Results: Immunohistochemistry (IHC) in 94 adults with severe TBI showed upregulation of Bcl-2 in the pericontusional tissue. Bcl-2 was detected in 36-75% of TBI patients, while it was generally absent in the non-TBI controls, with Bcl-2 expression increased 2.9- to 17-fold in TBI patients. Terminal deoxynucleotidyl transferase-mediated biotinylated dUTP nick-end labeling (TUNEL) positivity for cell death was detected in 33-73% of TBI patients. CSF analysis in 113 TBI subjects (90 adults, 23 pediatric patients) showed upregulation of Bcl-2 that peaked on post-injury day 3 and subsequently declined after day 5. Increased Bcl-2 in the peritraumatic tissue, rising CSF Bcl-2 levels, and the variant allele of rs17759659 are associated with improved mortality and better outcomes on the Glasgow Outcome Score (GOS). Conclusions: Bcl-2 is upregulated in the pericontusional brain and CSF in the acute period after TBI. Bcl-2 has a neuroprotective role as a pro-survival protein in experimental models, and increased expression in patients can contribute to improvement in clinical outcomes. Its utility as a biomarker and therapeutic target to block neuronal apoptosis after TBI warrants further evaluation.
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Affiliation(s)
- Hansen Deng
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
- Neurotrauma Clinical Trials Center, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - John K. Yue
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA 94110, USA;
- Brain and Spinal Injury Center, Zuckerberg San Francisco General Hospital, San Francisco, CA 94110, USA
| | - Benjamin E. Zusman
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
| | - Enyinna L. Nwachuku
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
- Neurotrauma Clinical Trials Center, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Hussam Abou-Al-Shaar
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
| | - Pavan S. Upadhyayula
- Department of Neurological Surgery, University of California Diego, San Diego, CA 92093, USA;
- Department of Neurological Surgery, Columbia University Medical Center, New York, NY 10032, USA
| | - David O. Okonkwo
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
- Neurotrauma Clinical Trials Center, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Ava M. Puccio
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (B.E.Z.); (E.L.N.); (H.A.-A.-S.); (D.O.O.); (A.M.P.)
- Neurotrauma Clinical Trials Center, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
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Wang Z, Xu JH, Mou JJ, Kong XT, Wu M, Xue HL, Xu LX. Photoperiod Affects Harderian Gland Morphology and Secretion in Female Cricetulus barabensis: Autophagy, Apoptosis, and Mitochondria. Front Physiol 2020; 11:408. [PMID: 32435203 PMCID: PMC7218128 DOI: 10.3389/fphys.2020.00408] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 04/06/2020] [Indexed: 12/16/2022] Open
Abstract
Photoperiod is an important factor of mammalian seasonal rhythm. The Harderian gland (HG) appears to act as a “standby” structure of the retinal-pineal axis, mediating light signals in vitro and neuroendocrine regulation in vivo; however, the effect of photoperiod on the HG is not clear. Here, we studied morphological differences in the HG of female striped dwarf hamsters (Cricetulus barabensis), a small mammal that experiences an annual rhythm, under different photoperiods (i.e., SP, short photoperiod; MP, moderate photoperiod; LP, long photoperiod), and further investigated the molecular mechanisms related to these morphological differences. Results showed that body weight, carcass weight, and HG weight were higher in the SP and LP groups than that in the MP group. Protein expression of hydroxyindole-o-methyltransferase, a key enzyme in melatonin synthesis, was higher in the SP group than in the other two groups. Somatostatin showed highest expression in the LP group. Furthermore, comparison of changes in the HG ultrastructure demonstrated autolysosome formation in the SP group. Protein aggregation and mRNA expression of LC3 and protein expression of LC3II/LC3I were higher in the SP group than in the MP group, indicating elevated autophagy under SP. Chromatin agglutination and mitochondrial damage were observed and bax/bcl2 and cytochrome C expression increased at the protein and mRNA levels in the SP and LP groups, suggesting increased apoptosis. Protein expression of dynamin-related protein 1 and mitochondrial fission factor (Mff) were highest in the SP group, suggesting elevated mitochondrial fission. Protein expression levels of adenosine triphosphate (ATP) synthase and citrate synthase were lower in the LP group than in the SP and MP groups. These results indicated that autophagy and apoptosis imbalance under SP and LP conditions may have led to HG weight loss and up-regulation of mitochondrial apoptosis may have weakened mitochondrial function under LP conditions. Finally, melatonin synthesis appeared to be positively correlated with the time hamsters entered darkness.
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Affiliation(s)
- Zhe Wang
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Jin-Hui Xu
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Jun-Jie Mou
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Xiao-Tong Kong
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Ming Wu
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Hui-Liang Xue
- College of Life Sciences, Qufu Normal University, Qufu, China
| | - Lai-Xiang Xu
- College of Life Sciences, Qufu Normal University, Qufu, China
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50
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Li Z, Liu X, Li M, Chai J, He S, Wu J, Xu J. Juglone potentiates BRAF inhibitor‑induced apoptosis in melanoma through reactive oxygen species and the p38‑p53 pathway. Mol Med Rep 2020; 22:566-574. [PMID: 32377702 DOI: 10.3892/mmr.2020.11095] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 03/02/2020] [Indexed: 11/06/2022] Open
Abstract
BRAF inhibitors are some of the most effective drugs against melanoma; however, their clinical application is largely limited by drug resistance. Juglone, isolated from walnut trees, has demonstrated anti‑tumour activity. In the present study, it was investigated whether juglone could enhance the responses to a BRAF inhibitor in melanoma cells (A375R and SK‑MEL‑5R) with an acquired resistance. These cells were treated with juglone alone, BRAF inhibitor (PLX4032) alone, or juglone combined with PLX4032. It was demonstrated that the combination of juglone and PLX4032 had synergistic effects on BRAF inhibitor‑resistant melanoma cells. Juglone potentiated PLX4032‑induced cytotoxicity and mitochondrial apoptosis in both A375R and SK‑MEL‑5R cells, which was accompanied by a decline in mitochondrial membrane potential and a decrease in Bcl‑2/Bax ratio. Moreover, juglone combined with PLX4032 markedly increased the intracellular level of reactive oxygen species (ROS) and activated p38 and p53, as compared with juglone alone or PLX4032 alone. Pre‑treatment with N‑acetyl‑L‑cysteine, a ROS scavenger, completely reversed the cytotoxicity induced by juglone combined with PLX4032. In conclusion, juglone potentiated BRAF inhibitor‑induced apoptosis in resistant melanoma cells, and these effects occurred partially through ROS and the p38‑p53 pathway, suggesting the potential of juglone as a sensitizer to BRAF inhibitors in the treatment of melanoma.
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Affiliation(s)
- Zheng Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Xiao Liu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Ming Li
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jingxiu Chai
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Shan He
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jinfeng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
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