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Li N, Chen L, Zhao X, Gu C, Chang Y, Feng S. Targeting ANXA7/LAMP5-mTOR axis attenuates spinal cord injury by inhibiting neuronal apoptosis via enhancing autophagy in mice. Cell Death Discov 2023; 9:309. [PMID: 37620352 PMCID: PMC10449888 DOI: 10.1038/s41420-023-01612-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Spinal cord injury (SCI) could lead to severe disabilities in motor and sensory functions, and cause a heavy burden on patient physiology and psychology due to lack of specific repair measures so far. ANXA7 is an annexin with Ca2+ -dependent GTPase activity, which were mainly expressed in neuron in spinal cord and downregulated significantly after SCI in mice. In our study, GTPase activity activation of ANXA7 plays the protective role in neuron after OGD/R through inhibiting neuron apoptosis, which mediated by enhancing autophagy via mTOR/TFEB pathway. We also discovered that ANXA7 has significant interaction with neural-specific lysosomal-associated membrane protein LAMP5, which together with ANXA7 regulates autophagy and apoptosis. Asp411 mutation of ANXA7 obviously impaired the interaction of ANXA7 and LAMP5 compared with the wild type. Furthermore, it was found that activation of ANXA7 could help to stabilize the protein expression of LAMP5. Overexpression of LAMP5 could attenuate the destruction of lysosomal acidic environment, inhibition of autophagy and activation of apoptosis caused by ANXA7 downregulation after OGD/R. We verified that injecting ANXA7 overexpression lentivirus and activation of ANXA7 both have significant repair effects on SCI mice by using CatWalk assay and immunohistochemistry staining. In summary, our findings clarify the new role of ANXA7 and LAMP5 in SCI, provided a new specific target of neuronal repair and discovered new molecular mechanisms of ANXA7 to regulate autophagy and apoptosis. Targeting ANXA7 may be a prospective therapeutic strategy for SCI in future.
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Affiliation(s)
- Na Li
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Lu Chen
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Xiaoqing Zhao
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Chi Gu
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Yong Chang
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Shiqing Feng
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China.
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong, China.
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Rusanov AL, Kozhin PM, Tikhonova OV, Zgoda VG, Loginov DS, Chlastáková A, Selinger M, Sterba J, Grubhoffer L, Luzgina NG. Proteome Profiling of PMJ2-R and Primary Peritoneal Macrophages. Int J Mol Sci 2021; 22:6323. [PMID: 34204832 PMCID: PMC8231560 DOI: 10.3390/ijms22126323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 05/30/2021] [Accepted: 06/09/2021] [Indexed: 11/16/2022] Open
Abstract
In vitro models are often used for studying macrophage functions, including the process of phagocytosis. The application of primary macrophages has limitations associated with the individual characteristics of animals, which can lead to insufficient standardization and higher variability of the obtained results. Immortalized cell lines do not have these disadvantages, but their responses to various signals can differ from those of the living organism. In the present study, a comparative proteomic analysis of immortalized PMJ2-R cell line and primary peritoneal macrophages isolated from C57BL/6 mice was performed. A total of 4005 proteins were identified, of which 797 were quantified. Obtained results indicate significant differences in the abundances of many proteins, including essential proteins associated with the process of phagocytosis, such as Elmo1, Gsn, Hspa8, Itgb1, Ncf2, Rac2, Rack1, Sirpa, Sod1, C3, and Msr1. These findings indicate that outcomes of studies utilizing PMJ2-R cells as a model of peritoneal macrophages should be carefully validated. All MS data are deposited in ProteomeXchange with the identifier PXD022133.
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Affiliation(s)
- Alexander L. Rusanov
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
| | - Peter M. Kozhin
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
| | - Olga V. Tikhonova
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
| | - Victor G. Zgoda
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
| | - Dmitry S. Loginov
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic; (A.C.); (M.S.); (J.S.); (L.G.)
- BioCeV—Institute of Microbiology of the CAS, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Adéla Chlastáková
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic; (A.C.); (M.S.); (J.S.); (L.G.)
| | - Martin Selinger
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic; (A.C.); (M.S.); (J.S.); (L.G.)
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Jan Sterba
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic; (A.C.); (M.S.); (J.S.); (L.G.)
| | - Libor Grubhoffer
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic; (A.C.); (M.S.); (J.S.); (L.G.)
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Nataliya G. Luzgina
- V. N. Orekhovich Research Institute of Biomedical Chemistry, Pogodinskaja Str. 10, 119121 Moscow, Russia; (P.M.K.); (O.V.T.); (V.G.Z.); (D.S.L.); (N.G.L.)
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3
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Grewal T, Rentero C, Enrich C, Wahba M, Raabe CA, Rescher U. Annexin Animal Models-From Fundamental Principles to Translational Research. Int J Mol Sci 2021; 22:ijms22073439. [PMID: 33810523 PMCID: PMC8037771 DOI: 10.3390/ijms22073439] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 02/07/2023] Open
Abstract
Routine manipulation of the mouse genome has become a landmark in biomedical research. Traits that are only associated with advanced developmental stages can now be investigated within a living organism, and the in vivo analysis of corresponding phenotypes and functions advances the translation into the clinical setting. The annexins, a family of closely related calcium (Ca2+)- and lipid-binding proteins, are found at various intra- and extracellular locations, and interact with a broad range of membrane lipids and proteins. Their impacts on cellular functions has been extensively assessed in vitro, yet annexin-deficient mouse models generally develop normally and do not display obvious phenotypes. Only in recent years, studies examining genetically modified annexin mouse models which were exposed to stress conditions mimicking human disease often revealed striking phenotypes. This review is the first comprehensive overview of annexin-related research using animal models and their exciting future use for relevant issues in biology and experimental medicine.
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Affiliation(s)
- Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
| | - Carles Rentero
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Carlos Enrich
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Mohamed Wahba
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
| | - Carsten A. Raabe
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
| | - Ursula Rescher
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
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4
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Gui SJ, Ding RL, Wan YP, Zhou L, Chen XJ, Zeng GQ, He CZ. Knockdown of annexin VII enhances nasopharyngeal carcinoma cell radiosensitivity in vivo and in vitro. Cancer Biomark 2021; 28:129-139. [PMID: 31958076 DOI: 10.3233/cbm-190739] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Radioresistance leads to treatment failure in patients with nasopharyngeal carcinoma (NPC). Thus, enhancing the radiosensitivity of NPC cells would likely increase the effectiveness of radiotherapy. Annexin VII (Annexin A7, ANXA7) might be a tumor promoter in NPC but its functions in radiosensitivity remain unclear. METHODS NPC cell lines CNE2-shANXA7 and CNE2-pLKO.1 were generated and CNE2-shANXA7 nude mice xenograft tumor models were established. The main effects and molecular mechanisms of ANXA7 knockdown in NPC radiosensitivity were studied in vitro and in vivo by analyzing cell viability, clonogenicity, apoptosis, cell cycle distribution, tumor radioresponse and immunohistochemistry assay. RESULTS ANXA7 knockdown revealed potentially enhanced NPC cell radiosensitivity via apoptosis and increased the cell number at the G2/M phase. In the xenograft model, NPC cells with ANXA7 knockdown were dramatically sensitive to irradiation and tumor growth was significantly suppressed. Compared to CNE2-pLKO.1 xenografts, CNE2-shANXA7 showed more γ-H2AX foci and less phospho-DNA PKcs. CONCLUSIONS ANXA7 knockdown increased the radiosensitivity of NPC by enhancing apoptosis, modulating the cell cycle distribution into more radiosensitive phases, promoting DNA damage, and inhibiting repair. We showed that decreased ANXA7 levels enhanced radiosensitivity and provided insights into the therapeutic targets for NPC radiotherapy.
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Affiliation(s)
- Si-Jie Gui
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Ru-Lei Ding
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Yan-Ping Wan
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Li Zhou
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Xu-Jun Chen
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Gu-Qing Zeng
- School of Nursing, University of South China, Hengyang, Hunan, China
| | - Chao-Zhu He
- Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
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5
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Huang H, Zhang J, Ling F, Huang Y, Yang M, Zhang Y, Wei Y, Zhang Q, Wang H, Song L, Wu Y, Yang J, Tang J. Leptin Receptor (LEPR) promotes proliferation, migration, and invasion and inhibits apoptosis in hepatocellular carcinoma by regulating ANXA7. Cancer Cell Int 2021; 21:4. [PMID: 33397392 PMCID: PMC7784271 DOI: 10.1186/s12935-020-01641-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/01/2020] [Accepted: 11/02/2020] [Indexed: 02/08/2023] Open
Abstract
Background Leptin Receptor (LEPR) has been suggested to have several roles in cancer metastasis. However, the role of LEPR and its underlying mechanisms in lymphatic metastasis of hepatocarcinoma have not yet been studied. Methods We performed bioinformatics analysis, qRT-PCR, western blotting, immunohistochemistry, immunofluorescence, enzyme-linked immunosorbent, coimmunoprecipitation assays and a series of functional assays to investigate the roles of LEPR in hepatocellular carcinoma. Results We discovered that LEPR was highly expressed in liver cancer tissues, and the expression of LEPR in Hca-F cells was higher than that in Hca-P cells. Furthermore, LEPR promotes the proliferation, migration and invasion and inhibits the apoptosis of hepatocarcinoma lymphatic metastatic cells. Further studies indicated that LEPR interacts with ANXA7. Mechanistically, LEPR regulated ERK1/2 and JAK2/STAT3 expression via ANXA7 regulation. Conclusions These findings unveiled a previously unappreciated role of LEPR in the regulation of lymphatic metastatic hepatocellular carcinoma, assigning ANXA7-LEPR as a promising therapeutic target for liver cancer treatments.
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Affiliation(s)
- He Huang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China.,Department of Pathology, Tangshan People's Hospital, 65 Shengli Road, Tangshan, 063001, Hebei, China
| | - Jun Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Fei Ling
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yuhong Huang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Min Yang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yao Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yuanyi Wei
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Qingqing Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Honghai Wang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Lin Song
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, 94158, USA
| | - Ying Wu
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Jiayu Yang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Jianwu Tang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China.
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6
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He X, Lin Z, Ning J, Li N, Cui X, Zhao B, Hong F, Miao J. Promoting TTC4 and HSP70 interaction and translocation of annexin A7 to lysosome inhibits apoptosis in vascular endothelial cells. FASEB J 2020; 34:12932-12945. [PMID: 33000523 DOI: 10.1096/fj.202000067r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 07/12/2020] [Accepted: 07/21/2020] [Indexed: 01/16/2023]
Abstract
We previously demonstrated that Tetraticopeptide 4 (TTC4) inhibited apoptosis in vascular endothelial cells (VEC) deprived of serum and fibroblast growth factor 2 (FGF-2). In this study, we aimed to resolve the mechanism of TTC4 inhibiting VEC apoptosis. TTC4, predicted as a HSP70 co-chaperone protein, may regulate the fate of cells by affecting the activity of HSP70, however, there is no experimental evidence showing the interaction of TTC4 and HSP70. Using Co-immunoprecipitation (Co-IP), we demonstrated that TTC4 interacted with HSP70. If HSP70 was knockdown, TTC4 no longer suppressed apoptosis. Furthermore, we found ABO, an inhibitor of annexin A7 (ANXA7) GTPase, could promote the interaction of TTC4 and HSP70 and the translocation of ANXA7 to lysosome. At the same time, ABO inhibited the interaction of HSP70 and ANXA7. Moreover, Akt, as a downstream effector of HSP70 was upregulated, and ANXA7 translocating to lysosome protected the stability of lysosomal membrane. Here, we discovered a special mechanism by which TTC4 inhibited apoptosis via HSP70 in VECs. On the one hand, increasing TTC4 and HSP70 interaction upregulated Akt that inhibited apoptosis. On the other hand, decreasing HSP70 and ANXA7 interaction promoted the translocation of ANXA7 to lysosome, which inhibited apoptosis through protecting the lysosomal membrane stability.
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Affiliation(s)
- Xiaoying He
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, P.R. China
| | - Zhaomin Lin
- Institute of Medical Science, The Second Hospital of Shandong University, Jinan, P.R. China
| | - Junya Ning
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, P.R. China
| | - Na Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, P.R. China
| | - Xiaoling Cui
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, P.R. China
| | - Baoxiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, P.R. China
| | - Fanzhen Hong
- Department of Obstetrics, The Second Hospital of Shandong University, Jinan, P.R. China
| | - Junying Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, P.R. China.,The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Shandong University Qilu Hospital, Jinan, P.R. China
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7
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Liu H, Guo D, Sha Y, Zhang C, Jiang Y, Hong L, Zhang J, Jiang Y, Lu L, Huang H. ANXA7 promotes the cell cycle, proliferation and cell adhesion-mediated drug resistance of multiple myeloma cells by up-regulating CDC5L. Aging (Albany NY) 2020; 12:11100-11115. [PMID: 32526706 PMCID: PMC7346058 DOI: 10.18632/aging.103326] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 04/28/2020] [Indexed: 12/19/2022]
Abstract
This study aimed to investigate whether annexin A7 (ANXA7) could promote the cell cycle, proliferation and cell adhesion-mediated drug resistance (CAM-DR) of multiple myeloma (MM) cells by up-regulating cell division cycle 5-like (CDC5L). As a result, ANXA7 expression was increased in the serum of MM patients and the expression of ANXA7 and CDC5L was also increased in MM cell lines. ANXA7 overexpression promoted the proliferation and cycle of U266 and RPMI8226 cells. The expression of proliferation cell nuclear antigen (PCNA), KI67, cyclin dependent kinase 1 (CDK1) and cyclinB1 in transfected cells was consistent with the changes of proliferation and cell cycle. In co-culture system of BMSC cells and MM cells, expression of CD44, ICAM1 and VCAM1 in MM cells was increased, which was further increased by ANXA7 overexpression. Bortezomib could increase the apoptosis of U266 and RPMI8226 cells. In co-culture system of BMSC cells and MM cells, the promotion effects of bortezomib on apoptosis of MM cells was decreased, which was further suppressed by ANXA7 overexpression. The above effects exerted by ANXA7 overexpression could be reversed by ANXA7 interference. Moreover, ANXA7 was proved to be combined with CDC5L. CDC5L interference could inhibit the promotion effects of ANXA7 overexpression on proliferation and cell cycle and inhibition effects of ANXA7 overexpression on apoptosis of MM cells treated with bortezomib in co-culture system. In conclusion, ANXA7 could promote the cell cycle, proliferation and CAM-DR of MM cells by up-regulating CDC5L.
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Affiliation(s)
- Haiyan Liu
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Dan Guo
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yuou Sha
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chenlu Zhang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yijing Jiang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Lemin Hong
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Jie Zhang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yuwen Jiang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Ling Lu
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Hongming Huang
- Department of Hematology, The Affiliated Hospital of Nantong University, Nantong 226001, China
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Wang C, Wang C, Qiu C, Su Z. Targeted Regulation of FoxO3a by miR-372 to Mediate Gastric Carcinoma Cell Apoptosis and DDP Drug Resistance. Cancer Biother Radiopharm 2020; 35:753-759. [PMID: 32379491 DOI: 10.1089/cbr.2019.3299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: FoxO3a is a well-studied tumor suppressor gene in the forkhead transcriptional factor O (FoxO) subfamily and its downregulation is correlated with the occurrence of gastric cancer (GC). GC tissues had microRNA (miR)-372 upregulation, which has targeted relationship with 3'-untranslated region (3'-UTR) of FoxO3a gene. This study investigated if miR-372 plays a role in modulating FoxO3a expression, and affecting GC cell proliferation, apoptosis, and cisplatin (DDP) resistance. Materials and Methods: Dual luciferase reporter gene assay assessed the targeted regulation between miR-372 and FoxO3a. DDP-resistant cell lines MGC803/DDP and MKN28/DDP were compared for gene expression against parental cells. Cell proliferation was measured by Cell Counting Kit-8 (CCK-8) assay. Cultured cells were transfected with miR-372 mimic or miR-negative control (NC) to measure FoxO3a mRNA and protein expression. Cell apoptosis and proliferation were tested by flow cytometry and 5-Ethynyl-2'-deoxyuridine (EdU) staining, respectively. Results: miR-372 had a targeted relationship with FoxO3a mRNA. MGC803/DDP and MKN28/DDP cells had significantly elevated miR-372 level than parental cells, while Foxo3a mRNA or protein levels were significantly decreased. CCK-8 assay revealed significantly lower inhibitory activity on cell proliferation in drug-resistant cells. Compared with miR-NC group, miR-273 inhibitor transfected DDP-resistant cells had significantly increased Foxo3a expression, enhanced cell apoptosis, reduced proliferation, and drug resistance. Conclusions: miR-372 upregulation is associated with DPP resistance of GC cells. Downregulation of miR-372 can inhibit proliferation, facilitate apoptosis, and suppress DDP resistance of drug-resistant GC cells.
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Affiliation(s)
- Changting Wang
- Department of General Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Chunxiao Wang
- Department of General Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Chengzhi Qiu
- Department of General Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
| | - Zhiming Su
- Department of General Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, China
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9
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Han PF, Che XD, Li HZ, Gao YY, Wei XC, Li PC. Annexin A1 involved in the regulation of inflammation and cell signaling pathways. Chin J Traumatol 2020; 23:96-101. [PMID: 32201231 PMCID: PMC7156956 DOI: 10.1016/j.cjtee.2020.02.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 11/25/2019] [Accepted: 01/04/2020] [Indexed: 02/08/2023] Open
Abstract
With the deepening of research, proteomics has developed into a science covering the study of all the structural and functional characteristics of proteins and the dynamic change rules. The essence of various biological activities is revealed from the perspectives of the biological structure, functional activity and corresponding regulatory mechanism of proteins by proteomics. Among them, phospholipid-binding protein is one of the hotspots of proteomics, especially annexin A1, which is widely present in various tissues and cells of the body. It has the capability of binding to phospholipid membranes reversibly in a calcium ion dependent manner. In order to provide possible research ideas for researchers, who are interested in this protein, the biological effects of annexin A1, such as inflammatory regulation, cell signal transduction, cell proliferation, differentiation and apoptosis are described in this paper.
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Affiliation(s)
- Peng-Fei Han
- Department of Orthopaedic Surgery, Heping Hospital Affiliated to Changzhi Medical College, Changzhi 046000, China
| | - Xian-Da Che
- Department of Orthopaedic Surgery, the Second Hospital of Shanxi Medical University, Taiyuan 030009, China
| | - Hong-Zhuo Li
- Department of Orthopaedic Surgery, Heping Hospital Affiliated to Changzhi Medical College, Changzhi 046000, China
| | - Yang-Yang Gao
- Department of Orthopaedic Surgery, the Second Hospital of Shanxi Medical University, Taiyuan 030009, China
| | - Xiao-Chun Wei
- Department of Orthopaedic Surgery, the Second Hospital of Shanxi Medical University, Taiyuan 030009, China
| | - Peng-Cui Li
- Department of Orthopaedic Surgery, the Second Hospital of Shanxi Medical University, Taiyuan 030009, China,Corresponding author.
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10
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Mo HQ, Tian FJ, Li X, Zhang J, Ma XL, Zeng WH, Lin Y, Zhang Y. ANXA7 regulates trophoblast proliferation and apoptosis in preeclampsia. Am J Reprod Immunol 2019; 82:e13183. [PMID: 31446642 DOI: 10.1111/aji.13183] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/06/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022] Open
Abstract
PROBLEM Preeclampsia (PE) is a unique gestational disorder leading to maternal and neonatal morbidity and mortality. AnnexinA7 (ANXA7) is a calcium-dependent phospholipid-binding protein that promotes membrane fusion during exocytosis. However, the function of ANXA7 in placental trophoblast is poorly understood. The present study aimed to investigate a possible association between ANXA7 and human trophoblast apoptosis. METHODS We collected human placental tissues from patients with PE and normal pregnant women to elucidate the expression level of ANXA7. The ANXA7-knockdown and ANXA7-overexpressing HTR8/SVneo cells were utilized for studying the function of ANXA7 in trophoblast. The proliferation and apoptosis levels of trophoblast were examined with Western blot assay, flow cytometry, Cell Counting Kit-8 assay, and immunohistochemistry. RESULTS ANXA7 expression was significantly lower in placentas from patients with PE patients compared with that in from normal pregnant controls. Knockdown of ANXA7 induced cell apoptosis and inhibited cell proliferation in HTR-8 via by downregulating BCL2 protein levels. Overexpression of ANXA7 reduced apoptosis and promoted HTR8 proliferation. Further analyses showed that ANXA7 knockdown inhibited the activation of the JAK1/STAT3 pathway in HTR-8 cells. CONCLUSION Our findings revealed a new regulatory pathway of ANXA7/JAK1/STAT3 in trophoblast apoptosis in preeclampsia, suggesting that ANXA7 is a potential therapeutic target for preeclampsia.
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Affiliation(s)
- Hui-Qin Mo
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fu-Ju Tian
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao Li
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Zhang
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Ling Ma
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Hong Zeng
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Lin
- Institute of Shanghai Key Laboratory of Embryo Original Diseases and Shanghai Municipal Key Clinical Specialty Project Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,The International Peace Maternity & Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhang
- Department of Obstetrics and Gynecology, RenMin Hospital of Wuhan University, Wuhan, China
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11
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Zhao Y, Yang Q, Wang X, Ma W, Tian H, Liang X, Li X. AnnexinA7 down-regulation might suppress the proliferation and metastasis of human hepatocellular carcinoma cells via MAPK/ ERK pathway. Cancer Biomark 2019; 23:527-537. [PMID: 30347600 DOI: 10.3233/cbm-181651] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND Hepatocellular carcinoma is one of the most fatal malignancies worldwide with high lethality. However, the exact mechanism of liver tumorigenesis is still unclear. AnnexinA7 (ANXA7) is a Ca2+-binding protein which is involved in membrane organization and dynamics and indicated a role of ANXA7 in cancer. However, the action of ANXA7 in hepatocellular carcinoma and the relative mechanism is still indistinct. OBJECTIVE To gain more insight into the biological function of ANXA7 and assess its possible influence on proliferation and metastasis capacity of human hepatocellular carcinoma cells with the relative mechanism. METHODS ANXA7 was down-regulated by RNA interference in both HepG2 and smmc-7721 cells. The decreased cell proliferation was detected by MTT method and colony formation assay. To confirm the result of cell proliferation, Ki-67 and cyclinD1 expression was examined by Western Blot. The increased apoptosis capacity of the cells was detected with cell cytometry and PI staining respectively. Bcl-2 and Bax expression was further investigated by Western blot and the decreased ration of Bcl-2/Bax might explain the increased apoptosis. RESULTS Cell metastasis showed significantly limited ability which was tested by wound healing assay and Transwell assay. Meanwhile, the key biomarkers of cell metastasis E-cadherin expression increased while MMP-9 decreased. Furthermore, we found that ANXA7 played its role via MAPK/ERK pathway. CONCLUSIONS ANXA7 might involve in the development of hepatocellular carcinoma and act as an oncogene which might be a potential therapeutic target for treatment.
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Affiliation(s)
- Yina Zhao
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China.,Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Qiang Yang
- Central Hospital of Chengde City, Department of Surgery, Chengde 067000, Hebei, China.,Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Xiaojie Wang
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Wenyi Ma
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Huanna Tian
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Xiujun Liang
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
| | - Xin Li
- Histology and Embryology Department, Chengde Medical University, Chengde 067000, Hebei, China
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