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Li H, Zhang G, Liu Y, Gao F, Ye X, Lin R, Wen M. Hypoxia-inducible factor 1α inhibits heat stress-induced pig intestinal epithelial cell apoptosis through eif2α/ATF4/CHOP signaling. Sci Total Environ 2024; 924:171649. [PMID: 38485018 DOI: 10.1016/j.scitotenv.2024.171649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/01/2024] [Accepted: 03/09/2024] [Indexed: 03/17/2024]
Abstract
Unstoppable global warming and increased frequency of extreme heat leads to human and animals easier to suffer from heat stress (HS), with gastrointestinal abnormalities as one of the initial clinical symptoms. HS induces intestinal mucosal damage owing to intestinal hypoxia and hyperthermia. Hypoxia-inducible factor 1α (HIF-1α) activates numerous genes to mediate cell hypoxic responses; however, its role in HS-treated intestinal mucosa is unknown. This work aimed to explore HIF-1α function and regulatory mechanisms in HS-treated pig intestines. We assigned 10 pigs to control and moderate HS groups. Physical signs, stress, and antioxidant levels were detected, and the intestines were harvested after 72 h of HS treatment to study histological changes and HIF-1α, heat shock protein 90 (HSP90), and prolyl-4-hydroxylase 2 (PHD-2) expression. In addition, porcine intestinal columnar epithelial cells (IPEC-J2) underwent HS treatment (42 °C, 5 % O2) to further explore the functions and regulatory mechanism of HIF-1α. The results of histological examination revealed HS caused intestinal villi damage and increased apoptotic epithelial cell; the expression of HIF-1α and HSP90 increased while PHD-2 showed and opposite trend. Transcriptome sequencing analysis revealed that HS activated HIF-1 signaling. To further explore the role of HIF-1α on HS induced IPEC-J2 apoptosis, the HIF-1α was interfered and overexpression respectively, and the result confirmed that HIF-1α could inhibited cell apoptosis under HS. Furthermore, HS-induced apoptosis depends on eukaryotic initiation factor 2 alpha (eif2α)/activating transcription factor 4 (ATF4)/CCAAT-enhancer-binding protein homologous protein (CHOP) pathway, and HIF-1α can inhibit this pathway to alleviate IPEC-J2 cell apoptosis. In conclusion, this study suggests that HS can promote intestinal epithelial cell apoptosis and cause pig intestinal mucosal barrier damage; the HIF-1α can alleviate cell apoptosis by inhibiting eif2α/ATF4/CHOP signaling. These results indicate that HIF-1α plays a protective role in HS, and offers a potential target for HS prevention and mitigation.
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Affiliation(s)
- Hui Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China; College of Animal Science, Guizhou University, Guiyang 550000, PR China.
| | - Gang Zhang
- College of Animal Science, Guizhou University, Guiyang 550000, PR China
| | - Yongqing Liu
- College of Animal Science, Guizhou University, Guiyang 550000, PR China
| | - Fan Gao
- College of Animal Science, Guizhou University, Guiyang 550000, PR China
| | - Xinyue Ye
- College of Agriculture, Guizhou University, Guiyang 550000, PR China
| | - Rutao Lin
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China; College of Animal Science, Guizhou University, Guiyang 550000, PR China.
| | - Ming Wen
- College of Animal Science, Guizhou University, Guiyang 550000, PR China.
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Gu Y, Liang C. TRAIP suppressed apoptosis and cell cycle to promote prostate cancer proliferation via TRAF2-PI3K-AKT pathway activation. Int Urol Nephrol 2024; 56:1639-1648. [PMID: 38100027 DOI: 10.1007/s11255-023-03890-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/14/2023] [Indexed: 04/09/2024]
Abstract
BACKGROUND TRAF-interacting protein (TRAIP) is a RING-type E3 ubiquitin ligase, which has been implicated in various cellular processes and participated in various cancers as an oncogene. However, the function and potential mechanism of TRAIP in prostate cancer (PCa) have not been investigated so far. METHODS Public TGCA data were used to evaluate the expression profile of TRAIP in prostatic tumors. The relative expression of TRAIP and TRAF2 in PCa tissues and tumor cell lines was detected by qPCR, western blot, and IHC staining. Next, TRAIP knockdown and overexpression plasmids were constructed and transfected into PCa cell lines. Moreover, cell proliferation, invasion, migration, and apoptosis were measured by colony formation, Transwell, wound healing, and flow cytometry assays. Subsequently, cell cycle and signaling pathway-related proteins were tested by western blot. Finally, the effect of TRAIP on PCa was measured based on the nude mouse xenograft model. RESULTS TRAIP was significantly upregulated in PCa tissues and tumor cell lines. In addition, TRAIP promoted cell proliferation, invasion, and migration of PCa cell lines. Such an oncogenic property was mediated by the cell cycle arrest and the inhibition of apoptosis, as indicated by different functional assays and the expression of cell cycle and apoptosis regulatory proteins in cultured cells. Moreover, TRAIP combined with TRAF2 to activate PI3K/AKT pathway. Finally, TRAIP depletion suppressed the growth of tumors and cell proliferation in vivo. CONCLUSIONS Our study first revealed that TRAIP promoted tumor progression and identified it as a potential therapeutic target for PCa patients in the future.
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Affiliation(s)
- Yuan Gu
- Department of Urology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China
- Department of Urology, Anhui Second People's Hospital, Hefei, 230041, Anhui, China
| | - Chaozhao Liang
- Department of Urology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, China.
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Guo Y, Wu D, Li X, Wang J, Li H, Li Y, Luo D, Yi F, Zhang D. Proximal tubular MBD2 promotes autophagy to drive the progression of AKI caused by vancomycin via regulation of miR-597-5p/S1PR1 axis. FASEB J 2024; 38:e23562. [PMID: 38578557 DOI: 10.1096/fj.202301500r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 02/03/2024] [Accepted: 03/04/2024] [Indexed: 04/06/2024]
Abstract
Our recent investigation has indicated that the global deletion of MBD2 can mitigate the progression of AKI induced by VAN. Nevertheless, the role and regulatory mechanisms of proximal tubular MBD2 in this pathophysiological process have yet to be elucidated. Our preceding investigation revealed that autophagy played a crucial role in advancing AKI induced by VAN. Consequently, we postulated that MBD2 present in the proximal tubule could upregulate the autophagic process to expedite the onset of AKI. In the present study, we found for the first time that MBD2 mediated the autophagy production induced by VAN. Through the utilization of miRNA chip analysis, we have mechanistically demonstrated that MBD2 initiates the activation of miR-597-5p through promoter demethylation. This process leads to the suppression of S1PR1, which results in the induction of autophagy and apoptosis in renal tubular cells. Besides, PT-MBD2-KO reduced autophagy to attenuate VAN-induced AKI via regulation of the miR-597-5p/S1PR1 axis, which was reversed by rapamycin. Finally, the overexpression of MBD2 aggravated the diminished VAN-induced AKI in autophagy-deficient mice (PT-Atg7-KO). These data demonstrate that proximal tubular MBD2 facilitated the process of autophagy via the miR-597-5p/S1PR1 axis and subsequently instigated VAN-induced AKI through the induction of apoptosis. The potentiality of MBD2 being a target for AKI was established.
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Affiliation(s)
- Yong Guo
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Emergency Medicine and Difficult Diseases Institute, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Organ Procurement Organization, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Dengke Wu
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Emergency Medicine and Difficult Diseases Institute, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaozhou Li
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Emergency Medicine and Difficult Diseases Institute, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Juan Wang
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Emergency Medicine and Difficult Diseases Institute, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Huiling Li
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yijian Li
- Department of Urinary Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Dan Luo
- Department of Emergency Medicine, Yueyang Central Hospital, Yueyang, Hunan, China
| | - Feng Yi
- Department of Emergency Medicine, Yueyang Central Hospital, Yueyang, Hunan, China
| | - Dongshan Zhang
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Emergency Medicine and Difficult Diseases Institute, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Le T, Ferling I, Qiu L, Nabaile C, Assunção L, Roskelley CD, Grinstein S, Freeman SA. Redistribution of the glycocalyx exposes phagocytic determinants on apoptotic cells. Dev Cell 2024; 59:853-868.e7. [PMID: 38359833 DOI: 10.1016/j.devcel.2024.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 11/08/2023] [Accepted: 01/23/2024] [Indexed: 02/17/2024]
Abstract
Phagocytes remove dead and dying cells by engaging "eat-me" ligands such as phosphatidylserine (PtdSer) on the surface of apoptotic targets. However, PtdSer is obscured by the bulky exofacial glycocalyx, which also exposes ligands that activate "don't-eat-me" receptors such as Siglecs. Clearly, unshielding the juxtamembrane "eat-me" ligands is required for the successful engulfment of apoptotic cells, but the mechanisms underlying this process have not been described. Using human and murine cells, we find that apoptosis-induced retraction and weakening of the cytoskeleton that anchors transmembrane proteins cause an inhomogeneous redistribution of the glycocalyx: actin-depleted blebs emerge, lacking the glycocalyx, while the rest of the apoptotic cell body retains sufficient actin to tether the glycocalyx in place. Thus, apoptotic blebs can be engaged by phagocytes and are targeted for engulfment. Therefore, in cells with an elaborate glycocalyx, such as mucinous cancer cells, this "don't-come-close-to-me" barrier must be removed to enable clearance by phagocytosis.
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Affiliation(s)
- Trieu Le
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Iuliia Ferling
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Lanhui Qiu
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Clement Nabaile
- Department of Learning and Research in Biology, Ecole Normale Supérieure Paris-Saclay, Gif-sur-Yvette, France
| | - Leonardo Assunção
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Calvin D Roskelley
- Department of Cellular and Physiological Sciences, the Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Sergio Grinstein
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Spencer A Freeman
- Program in Cell Biology, Hospital for Sick Children, Toronto, ON M5G 0A4, Canada; Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada.
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Jiang R, Xu B, Zhi S, Sun L, Yu B, Huang Q, Shi Y. Scaffold hopping derived novel benzoxazepinone receptor-interacting protein kinase 1 (RIP1) inhibitors as anti-necroptosis agents: Anti-inflammatory effect in systemic inflammatory response syndrome (SIRS) and epilepsy. Eur J Med Chem 2024; 269:116304. [PMID: 38484677 DOI: 10.1016/j.ejmech.2024.116304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/25/2024] [Accepted: 03/02/2024] [Indexed: 04/07/2024]
Abstract
Necroptosis is a type of regulated cell death known for its pro-inflammatory nature due to the substantial release of cellular contents. The phosphorylation of key proteins, namely RIP1, RIP3, and mixed lineage kinase domain-like protein (MLKL), plays a pivotal role in the processes associated with necroptosis. Consequently, inhibiting the phosphorylation of any of these three key protein kinases could effectively block necroptosis. Utilizing a scaffold hopping strategy, we have successfully designed and synthesized a series of novel RIP1 inhibitors with selective and anti-necrotic properties, using compound o1 as the lead compound. In comparison to o1, SY1 has demonstrated heightened antinecroptosis activity and binding affinity in vitro studies. Moreover, SY1 has exhibited superior efficacy in both in vivo studies, specifically in the context of SIRS, and pharmacokinetic assessments. Furthermore, SY1 has proven effective in significantly suppressing the central inflammatory response induced by epilepsy.
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Affiliation(s)
- Ruiqi Jiang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China
| | - Bin Xu
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China
| | - Shumeng Zhi
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China
| | - Lei Sun
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China
| | - Baocong Yu
- Ningxia Key Laboratory of Craniocerebral Diseases, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Qing Huang
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Ying Shi
- Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area (Ningxia Medical University), Ministry of Education, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
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Dey N, Koumenis C, Ruggero D, Fuchs SY, Diehl JA. miR-217 Regulates Normal and Tumor Cell Fate Following Induction of Endoplasmic Reticulum Stress. Mol Cancer Res 2024; 22:360-372. [PMID: 38236939 PMCID: PMC10987263 DOI: 10.1158/1541-7786.mcr-23-0676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/28/2023] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
Rapidly proliferating cancer cells require a microenvironment where essential metabolic nutrients like glucose, oxygen, and growth factors become scarce as the tumor volume surpasses the established vascular capacity of the tissue. Limits in nutrient availability typically trigger growth arrest and/or apoptosis to prevent cellular expansion. However, tumor cells frequently co-opt cellular survival pathways thereby favoring cell survival under this environmental stress. The unfolded protein response (UPR) pathway is typically engaged by tumor cells to favor adaptation to stress. PERK, an endoplasmic reticulum (ER) protein kinase and UPR effector is activated in tumor cells and contributes tumor cell adaptation by limiting protein translation and balancing redox stress. PERK also induces miRNAs that contribute to tumor adaptation. miR-211 and miR-216b were previously identified as PERK-ATF4-regulated miRNAs that regulate cell survival. We have identified another PERK-responsive miRNA, miR-217, with increased expression under prolonged ER stress. Key targets of miR-217 are identified as TRPM1, the host gene for miR-211 and EZH2. Evidence is provided that miR-217 expression is essential for the rapid loss of miR-211 in prolonged ER stress and provides a functional link for determining whether cells adapt to stress or commit to apoptosis. IMPLICATIONS PERK-dependent induction of miR-217 limits accumulation and function of the prosurvival miRNA, miR-211, to establish cell fate and promote cell commitment to apoptosis.
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Affiliation(s)
- Neekkan Dey
- Department of Biochemistry, Case Comprehensive Cancer Center; Case Western Reserve University, Cleveland, OH 44106, USA
| | - Costas Koumenis
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Davide Ruggero
- Departments of Urology and Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Serge Y. Fuchs
- Dept. of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - J. Alan Diehl
- Department of Biochemistry, Case Comprehensive Cancer Center; Case Western Reserve University, Cleveland, OH 44106, USA
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Enomoto A, Fukasawa T, Terunuma H, Nakagawa K, Yoshizaki A, Sato S, Hosoya N, Miyagawa K. Deregulated JNK signaling enhances apoptosis during hyperthermia. Int J Hyperthermia 2024; 41:2335199. [PMID: 38565204 DOI: 10.1080/02656736.2024.2335199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/22/2024] [Indexed: 04/04/2024] Open
Abstract
PURPOSE c-Jun N-terminal kinases (JNKs) comprise a subfamily of mitogen-activated protein kinases (MAPKs). The JNK group is known to be activated by a variety of stimuli. However, the molecular mechanism underlying heat-induced JNK activation is largely unknown. The aim of this study was to clarify how JNK activity is stimulated by heat. METHODS AND MATERIALS The expression levels of various MAPK members in HeLa cells, with or without hyperthermia treatment, were evaluated via western blotting. The kinase activity of MAPK members was assessed through in vitro kinase assays. Cell death was assessed in the absence or presence of siRNAs targeting MAPK-related members. RESULTS Hyperthermia decreased the levels of MAP3Ks, such as ASK1 and MLK3 which are JNK kinase kinase members, but not those of the downstream MAP2K/SEK1 and MAPK/JNK. Despite the reduced or transient phosphorylation of ASK1, MLK3, or SEK1, downstream JNK was phosphorylated in a temperature-dependent manner. In vitro kinase assays demonstrated that heat did not directly stimulate SEK1 or JNK. However, the expression levels of DUSP16, a JNK phosphatase, were decreased upon hyperthermia treatment. DUSP16 knockdown enhanced the heat-induced activation of ASK1-SEK1-JNK pathway and apoptosis. CONCLUSION JNK was activated in a temperature-dependent manner despite reduced or transient phosphorylation of the upstream MAP3K and MAP2K. Hyperthermia-induced degradation of DUSP16 may induce activation of the ASK1-SEK1-JNK pathway and subsequent apoptosis.
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Affiliation(s)
- Atsushi Enomoto
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takemichi Fukasawa
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Clinical Cannabinoid Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | | | - Keiichi Nakagawa
- Comprehensive Radiation Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ayumi Yoshizaki
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Clinical Cannabinoid Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichi Sato
- Department of Dermatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Noriko Hosoya
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Miyagawa
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Roy A, Chakraborty AR, DePamphilis ML. PIKFYVE inhibitors trigger interleukin-24-dependent cell death of autophagy-dependent melanoma. Mol Oncol 2024; 18:988-1011. [PMID: 38414326 PMCID: PMC10994231 DOI: 10.1002/1878-0261.13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/16/2024] [Accepted: 02/02/2024] [Indexed: 02/29/2024] Open
Abstract
Inhibitors specifically targeting the 1-phosphatidylinositol 3-phosphate 5-kinase (PIKFYVE) disrupt lysosome homeostasis, thereby selectively terminating autophagy-dependent human cancer cells in vivo as well as in vitro without harming the viability of nonmalignant cells. To elucidate the mechanism by which PIKFYVE inhibition induces cell death, autophagy-dependent melanoma cells were compared with normal foreskin fibroblasts. RNA sequence profiling suggested that PIKFYVE inhibitors upregulated an endoplasmic reticulum (ER) stress response involving interleukin-24 (IL24; also known as MDA7) selectively in melanoma cells. Subsequent biochemical and genetic analyses confirmed these results and extended them to tumor xenografts in which tumor formation and expansion were inhibited. IL24 expression was upregulated by the DDIT3/CHOP/CEBPz transcription factor, a component of the PERK-dependent ER-stress response. Ectopic expression of IL24-induced cell death in melanoma cells, but not in foreskin fibroblasts, whereas ablation of the IL24 gene in melanoma cells prevented death. IL24 upregulation was triggered specifically by PIKFYVE inhibition. Thus, unlike thapsigargin and tunicamycin, which induce ER-stress indiscriminately, PIKFYVE inhibitors selectively terminated PIKFYVE-sensitive melanoma by inducing IL24-dependent ER-stress. Moreover, induction of cell death by a PIKFYVE inhibitor together with ectopic expression of IL24 protein was cumulative, thereby confirming the therapeutic potential of PIKFYVE inhibitors in the treatment of melanoma.
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Affiliation(s)
- Ajit Roy
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
| | - Arup R. Chakraborty
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
| | - Melvin L. DePamphilis
- National Institute of Child Health & Human DevelopmentNational Institutes of HealthBethesdaMDUSA
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9
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Pang H, Huang G, Xie Z, Zhou Z. The role of regulated necrosis in diabetes and its complications. J Mol Med (Berl) 2024; 102:495-505. [PMID: 38393662 DOI: 10.1007/s00109-024-02421-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 12/21/2023] [Accepted: 01/16/2024] [Indexed: 02/25/2024]
Abstract
Morphologically, cell death can be divided into apoptosis and necrosis. Apoptosis, which is a type of regulated cell death, is well tolerated by the immune system and is responsible for hemostasis and cellular turnover under physiological conditions. In contrast, necrosis is defined as a form of passive cell death that leads to a dramatic inflammatory response (also referred to as necroinflammation) and causes organ dysfunction under pathological conditions. Recently, a novel form of cell death named regulated necrosis (such as necroptosis, pyroptosis, and ferroptosis) was discovered. Distinct from apoptosis, regulated necrosis is modulated by multiple internal or external factors, but meanwhile, it results in inflammation and immune response. Accumulating evidence has indicated that regulated necrosis is associated with multiple diseases, including diabetes. Diabetes is characterized by hyperglycemia caused by insulin deficiency and/or insulin resistance, and long-term high glucose leads to various diabetes-related complications. Here, we summarize the mechanisms of necroptosis, pyroptosis, and ferroptosis, and introduce recent advances in characterizing the associations between these three types of regulated necrosis and diabetes and its complications.
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Affiliation(s)
- Haipeng Pang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Gan Huang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Zhiguo Xie
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology (Central South University), Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
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10
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Ren M, Ye X, Ouyang C, Da Q, Xue W, Chen P. JMJD2A mediates transcriptional activation of SFRP4 and regulates oxidative stress and mitochondrial dysfunction in heart failure. Pathol Int 2024; 74:210-221. [PMID: 38411359 DOI: 10.1111/pin.13413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/28/2024]
Abstract
The importance of mitochondrial dysfunction and oxidative stress has been indicated in the progression of heart failure (HF). The molecular mechanisms, however, remain to be fully elucidated. This study aimed to explore the role and underlying mechanism of secreted frizzled-related protein 4 (SFRP4) in these two events in HF. Mice with HF were developed using transverse aortic constriction, and hematoxylin-eosin staining, MASSON staining, and Terminal deoxynucleotidyl transferase (TdT)-mediated 2'-Deoxyuridine 5'- Triphosphate nick end labeling (TUNEL assays) were conducted to detect morphological damage in the myocardial tissues of mice. HL-1 mouse cardiomyocytes were induced with isoproterenol (ISO), and cell viability and apoptosis were examined using cell counting kit-8 and TUNEL assays. SFRP4 and Jumonji domain-containing protein 2A (JMJD2A) were highly expressed in myocardial tissues. Suppression of SFRP4 alleviated apoptosis and fibrosis in myocardial tissues of mice. In addition, the extent of mitochondrial dysfunction and oxidative stress in damaged myocardial tissues and HL-1 cells was mitigated by SFRP4 inhibition as well. JMJD2A catalyzed demethylation modification of the SFRP4 promoter, thus promoting SFRP4 transcription in the development of HF. JMJD2A is responsible for SFRP4 transcription activation in the failing hearts of mice. Blockade of JMJD2A or SFRP4 might be a novel therapy effective in mitigating HF progression.
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Affiliation(s)
- Mingming Ren
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Xiaoqiang Ye
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Chun Ouyang
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Qing'en Da
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Weiwei Xue
- Department of Cardiovascular Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Piji Chen
- Department of Clinical Laboratory, Yantian People's Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, China
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Wang X, Kang L, Kong D, Wu X, Zhou Y, Yu G, Dai D, Ye H. A programmable protease-based protein secretion platform for therapeutic applications. Nat Chem Biol 2024; 20:432-442. [PMID: 37872400 DOI: 10.1038/s41589-023-01433-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 09/02/2023] [Indexed: 10/25/2023]
Abstract
Cell-based therapies represent potent enabling technologies in biomedical science. However, current genetic control systems for engineered-cell therapies are predominantly based on the transcription or translation of therapeutic outputs. Here we report a protease-based rapid protein secretion system (PASS) that regulates the secretion of pretranslated proteins retained in the endoplasmic reticulum (ER) owing to an ER-retrieval signal. Upon cleavage by inducible proteases, these proteins are secreted. Three PASS variants (chemPASS, antigenPASS and optoPASS) are developed. With chemPASS, we demonstrate the reversal of hyperglycemia in diabetic mice within minutes via drug-induced insulin secretion. AntigenPASS-equipped cells recognize the tumor antigen and secrete granzyme B and perforin, inducing targeted cell apoptosis. Finally, results from mouse models of diabetes, hypertension and inflammatory pain demonstrate light-induced, optoPASS-mediated therapeutic peptide secretion within minutes, conferring anticipated therapeutic benefits. PASS is a flexible platform for rapid delivery of therapeutic proteins that can facilitate the development and adoption of cell-based precision therapies.
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Affiliation(s)
- Xinyi Wang
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Liping Kang
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Deqiang Kong
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xin Wu
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Yang Zhou
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
- Wuhu Hospital, Health Science Center, East China Normal University, Wuhu City, China
| | - Guiling Yu
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Di Dai
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Haifeng Ye
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Biomedical Synthetic Biology Research Center, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.
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12
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Demir S, Duman İ, Nazıroğlu M. Synergic actions of botulinum neurotoxin A and oxaliplatin on colorectal tumour cell death through the upregulation of TRPM2 channel-mediated oxidative stress. Clin Exp Pharmacol Physiol 2024; 51:e13844. [PMID: 38350599 DOI: 10.1111/1440-1681.13844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/09/2024] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
Botulinum neurotoxin A (BoNT) is being shown to have anticancer action as a potential adjuvant treatment. The transient receptor potential (TRP) melastatin 2 (TRPM2) stimulator action of BoNT was reported in glioblastoma cells, but not in colorectal cancer (HT29) cells. By activating TRPM2, we evaluated the impacts of BoNT and oxaliplatin (OXA) incubations on oxidant and apoptotic values within the HT29 cells. Control, BoNT (5 IU for 24 h), OXA (50 μM for 24 h) and their combinations were induced. We found that TRPM2 protein is upregulated and mediates enhanced BoNT and OXA-induced Ca2+ entry in cells as compared to control cells. The increase of free reactive oxygen species (ROS), but the decrease of glutathione is the main ROS responsible for TRPM2 activation on H29 exposure to oxidative stress. BoNT and OXA-mediated Ca2+ entry through TRPM2 stimulation in response to H2 O2 results in mitochondrial Ca2+ overload, followed by mitochondrial membrane depolarization, apoptosis and caspase-3/-8/-9, although they were diminished in the TRPM2 antagonist groups (N-(p-amylcinnamoyl)anthranilic acid and carvacrol). In conclusion, by increasing the susceptibility of HT29 tumour cells to oxidative stress and apoptosis, the combined administration of BoNT and OXA via the targeting of TRPM2 may offer a different approach to kill the tumour cells.
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Affiliation(s)
- Sıdıka Demir
- Department of Medical Pharmacology, School of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - İpek Duman
- Department of Medical Pharmacology, School of Medicine, Necmettin Erbakan University, Konya, Turkey
| | - Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey
- BSN Health, Analyses, Innov., Consult., Org., Agricul., Ltd, Isparta, Turkey
- Department of Biophysics, School of Medicine, Suleyman Demirel University, Isparta, Turkey
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13
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Du BB, Shi HT, Xiao LL, Li YP, Yao R, Liang C, Tian XX, Yang LL, Kong LY, Du JQ, Zhang ZZ, Zhang YZ, Huang Z. Melanoma differentiation-associated protein 5 prevents cardiac hypertrophy via apoptosis signal-regulating kinase 1-c-Jun N-terminal kinase/p38 signaling. Int J Biol Macromol 2024; 264:130542. [PMID: 38432272 DOI: 10.1016/j.ijbiomac.2024.130542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/28/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Pathological cardiac hypertrophy (CH) is driven by maladaptive changes in myocardial cells in response to pressure overload or other stimuli. CH has been identified as a significant risk factor for the development of various cardiovascular diseases, ultimately resulting in heart failure. Melanoma differentiation-associated protein 5 (MDA5), encoded by interferon-induced with helicase C domain 1 (IFIH1), is a cytoplasmic sensor that primarily functions as a detector of double-stranded ribonucleic acid (dsRNA) viruses in innate immune responses; however, its role in CH pathogenesis remains unclear. Thus, the aim of this study was to examine the relationship between MDA5 and CH using cellular and animal models generated by stimulating neonatal rat cardiomyocytes with phenylephrine and by performing transverse aortic constriction on mice, respectively. MDA5 expression was upregulated in all models. MDA5 deficiency exacerbated myocardial pachynsis, fibrosis, and inflammation in vivo, whereas its overexpression hindered CH development in vitro. In terms of the underlying molecular mechanism, MDA5 inhibited CH development by promoting apoptosis signal-regulating kinase 1 (ASK1) phosphorylation, thereby suppressing c-Jun N-terminal kinase/p38 signaling pathway activation. Rescue experiments using an ASK1 activation inhibitor confirmed that ASK1 phosphorylation was essential for MDA5-mediated cell death. Thus, MDA5 protects against CH and is a potential therapeutic target.
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Affiliation(s)
- Bin-Bin Du
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Hui-Ting Shi
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Li-Li Xiao
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Ya-Peng Li
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Rui Yao
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Cui Liang
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Xiao-Xu Tian
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Lu-Lu Yang
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Ling-Yao Kong
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Jia-Qi Du
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Zhao-Zhi Zhang
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China
| | - Yan-Zhou Zhang
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China.
| | - Zhen Huang
- Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, China.
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14
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Gao T, Magnano S, Rynne A, O'Kane L, Barroeta PH, Zisterer DM. Targeting inhibitor of apoptosis proteins (IAPs) enhances susceptibility of oral squamous carcinoma cells to cisplatin. Exp Cell Res 2024; 437:113995. [PMID: 38490621 DOI: 10.1016/j.yexcr.2024.113995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/19/2024] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
PURPOSE Oral Squamous Cell Carcinoma (OSCC) is the 6th most common cancer worldwide. It is generally aggressive and closely associated with chemoresistance and poor survival. There is accumulating evidence for the involvement of inhibitors of apoptosis proteins (IAPs), including IAP1 and XIAP, in mediating chemotherapy resistance in OSCC. Various strategies for targeting IAPs have been designed and tested in recent years and several small molecule IAP inhibitors are in clinical trials as monotherapies as well as in combination with radiotherapy and chemotherapy. The purpose of this study was to evaluate and compare the efficacy and biological activity of three IAP inhibitors both as stand-alone and sensitising agents to cisplatin in a preclinical model of squamous cell carcinoma of the tongue. METHODS Cisplatin-sensitive SCC4 and -resistant SCC4cisR cells were utilised in this study. Apoptosis was evaluated by flow cytometric analysis of Annexin V/Propidium Iodide-stained cells. Expression of IAP proteins was determined by western blotting and knockdown of cIAP1, livin and XIAP was conducted by transfection of cells with siRNA. RESULTS We establish for the first time the therapeutic efficacy of the Smac mimetic, BV6 and the XIAP inhibitor Embelin, for OSCC. Both of these IAP targeting agents synergistically enhanced cisplatin-mediated apoptotic cell death in resistant cells which was mediated in part by depletion of XIAP. In addition, knockdown of XIAP using siRNA enhanced cisplatin-mediated cell death, demonstrating the importance of targeting XIAP in this sensitisation. CONCLUSION These findings provide pre-clinical evidence that IAP inhibition may be a valuable therapeutic option in OSCC.
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Affiliation(s)
- Tianyi Gao
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
| | - Stefania Magnano
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Amy Rynne
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Lucy O'Kane
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Patricia Hannon Barroeta
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Daniela M Zisterer
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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15
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Dong W, Chen J, Wang Y, Weng J, Du X, Fang X, Liu W, Long T, You J, Wang W, Peng X. miR-206 alleviates LPS-induced inflammatory injury in cardiomyocytes via directly targeting USP33 to inhibit the JAK2/STAT3 signaling pathway. Mol Cell Biochem 2024; 479:929-940. [PMID: 37256445 PMCID: PMC10230473 DOI: 10.1007/s11010-023-04754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/28/2023] [Indexed: 06/01/2023]
Abstract
Previous reports have confirmed that miR-206 participates in inflammatory cardiomyopathy, but its definite mechanism remains elusive. This study aims to elucidate the potential mechanism of miR-206 in septic cardiomyopathy (SCM). The primary mouse cardiomyocytes were isolated and exposed to lipopolysaccharides (LPS) to construct a septic injury model in vitro. Then, the gene transcripts and protein levels were detected by RT-qPCR and/or Western blot assay. Cell proliferation, apoptosis, and inflammatory responses were evaluated by CCK-8/EdU, flow cytometry, and ELISA assays, respectively. Dual luciferase assay, Co-IP, and ubiquitination experiments were carried out to validate the molecular interactions among miR-206, USP33, and JAK2/STAT3 signaling. miR-206 was significantly downregulated, but USP33 was upregulated in LPS-induced cardiomyocytes. Gain-of-function of miR-206 elevated the proliferation but suppressed the inflammatory responses and apoptosis in LPS-induced cardiomyocytes. USP33, as a member of the USP protein family, was confirmed to be a direct target of miR-206 and could catalyze deubiquitination of JAK2 to activate JAK2/STAT3 signaling. Rescue experiments presented that neither upregulation of USP33 nor JAK2/STAT3 signaling activation considerably reversed the protective effects of miR-206 upregulation in LPS-induced cardiomyocytes. The above data showed that miR-206 protected cardiomyocytes from LPS-induced inflammatory injuries by targeting the USP33/JAK2/STAT3 signaling pathway, which might be a novel target for SCM treatment.
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Affiliation(s)
- Wei Dong
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jin Chen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Yadong Wang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Junfei Weng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xingxiang Du
- Department of Emergency, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xu Fang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Wenyu Liu
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Tao Long
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jiaxiang You
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Wensheng Wang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Xiaoping Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17, Yong Waizheng Road, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China.
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16
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Wang J, Bollier N, Buono RA, Vahldick H, Lin Z, Feng Q, Hudecek R, Jiang Q, Mylle E, Van Damme D, Nowack MK. A developmentally controlled cellular decompartmentalization process executes programmed cell death in the Arabidopsis root cap. Plant Cell 2024; 36:941-962. [PMID: 38085063 PMCID: PMC7615778 DOI: 10.1093/plcell/koad308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 01/12/2024]
Abstract
Programmed cell death (PCD) is a fundamental cellular process crucial to development, homeostasis, and immunity in multicellular eukaryotes. In contrast to our knowledge on the regulation of diverse animal cell death subroutines, information on execution of PCD in plants remains fragmentary. Here, we make use of the accessibility of the Arabidopsis (Arabidopsis thaliana) root cap to visualize the execution process of developmentally controlled PCD. We identify a succession of selective decompartmentalization events and ion fluxes as part of the terminal differentiation program that is orchestrated by the NO APICAL MERISTEM, ARABIDOPSIS THALIANA ACTIVATING FACTOR, CUP-SHAPED COTYLEDON (NAC) transcription factor SOMBRERO. Surprisingly, the breakdown of the large central vacuole is a relatively late and variable event, preceded by an increase of intracellular calcium levels and acidification, release of mitochondrial matrix proteins, leakage of nuclear and endoplasmic reticulum lumina, and release of fluorescent membrane reporters into the cytosol. In analogy to animal apoptosis, the plasma membrane remains impermeable for proteins during and after PCD execution. Elevated intracellular calcium levels and acidification are sufficient to trigger cell death execution specifically in terminally differentiated root cap cells, suggesting that these ion fluxes act as PCD-triggering signals. This detailed information on the cellular processes occurring during developmental PCD in plants is a pivotal prerequisite for future research into the molecular mechanisms of cell death execution.
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Affiliation(s)
- Jie Wang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Norbert Bollier
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Rafael Andrade Buono
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Hannah Vahldick
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Zongcheng Lin
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Qiangnan Feng
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Roman Hudecek
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Qihang Jiang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Evelien Mylle
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Daniel Van Damme
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Moritz K. Nowack
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
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Chapman TW, Kamen Y, Piedra ET, Hill RA. Oligodendrocyte Maturation Alters the Cell Death Mechanisms That Cause Demyelination. J Neurosci 2024; 44:e1794232024. [PMID: 38395617 PMCID: PMC10977033 DOI: 10.1523/jneurosci.1794-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/14/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Myelinating oligodendrocytes die in human disease and early in aging. Despite this, the mechanisms that underly oligodendrocyte death are not resolved and it is also not clear whether these mechanisms change as oligodendrocyte lineage cells are undergoing differentiation and maturation. Here, we used a combination of intravital imaging, single-cell ablation, and cuprizone-mediated demyelination, in both female and male mice, to discover that oligodendrocyte maturation dictates the dynamics and mechanisms of cell death. After single-cell phototoxic damage, oligodendrocyte precursor cells underwent programmed cell death within hours, differentiating oligodendrocytes died over several days, while mature oligodendrocytes took weeks to die. Importantly cells at each maturation stage all eventually died but did so with drastically different temporal dynamics and morphological features. Consistent with this, cuprizone treatment initiated a caspase-3-dependent form of rapid cell death in differentiating oligodendrocytes, while mature oligodendrocytes never activated this executioner caspase. Instead, mature oligodendrocytes exhibited delayed cell death which was marked by DNA damage and disruption in poly-ADP-ribose subcellular localization. Thus, oligodendrocyte maturation plays a key role in determining the mechanism of death a cell undergoes in response to the same insult. This means that oligodendrocyte maturation is important to consider when designing strategies for preventing cell death and preserving myelin while also enhancing the survival of new oligodendrocytes in demyelinating conditions.
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Affiliation(s)
- Timothy W Chapman
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755
| | - Yasmine Kamen
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755
| | - Enrique T Piedra
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755
| | - Robert A Hill
- Department of Biological Sciences, Dartmouth College, Hanover, New Hampshire 03755
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18
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Wang G, Dong R, Zhao H, Ye N, Wang J, Cheng J, Shi X, Luo L, Zhang T. The role of ERp29/FOS/EMT pathway in excessive apoptosis of placental trophoblast cells in intrahepatic cholestasis of pregnancy. Placenta 2024; 148:20-30. [PMID: 38346375 DOI: 10.1016/j.placenta.2024.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Abnormal bile acid metabolism leading to changes in placental function during pregnancy. To determine whether endoplasmic reticulum protein 29 (ERp29) can mediate the pregnancy effects of cholestasis by altering the level of trophoblast cell apoptosis. METHODS ERp29 in serum of 66 intrahepatic cholestasis of pregnancy (ICP) pregnant women and 74 healthy were detected by ELISA. Subcutaneous injection of ethinyl estradiol (E2) was used to induce ICP in pregnant rats. Taurocholic acid (TCA) was used to simulate the ICP environment, and TGF-β1 was added to induce the epithelial mesenchymal transformation (EMT) process. The scratch, migration, and invasion test were used to detect the EMT process. ERp29 overexpression/knockdown vector were constructed and transfected to verify the role of ERp29 in the EMT process. Downstream gene was obtained through RNA-seq. RESULTS Compared with the healthy pregnant women, the expression levels of ERp29 in serum of ICP pregnancy women were significantly increased (P < 0.001). ERp29 in the placenta tissue of the ICP pregnant rats increased significantly, and the level of apoptosis increased. The placental tissues of the ICP had high expression of E-cadherin and low expression of N-cadherin, snail1, vimentin. After HTR-8/SVneo cells were induced by TCA, EMT was inhibited, while the ERp29 increased. Cell and animal experiments showed that, knockdown of ERp29 reduced the inhibition of EMT, the ICP progress was alleviated. Overexpression of FOS salvaged the inhibitory effects of ERp29 on cell EMT. DISCUSSION The high level of ERp29 in placental trophoblast cells reduced FOS mRNA levels, inhibited the EMT process and aggravated the occurrence and development of ICP.
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Affiliation(s)
- Gaoying Wang
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China
| | - Ruirui Dong
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China
| | - Haijian Zhao
- Department of General Surgery, The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an, 223001, China
| | - Ningzhen Ye
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China
| | - Jing Wang
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China
| | - Jing Cheng
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China
| | - Xinrui Shi
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Liang Luo
- Wuxi No.2 People's Hospital, Jiangnan University Medical Center, Jiangnan University, Wuxi, 214000, China.
| | - Ting Zhang
- Affiliated Women's Hospital of Jiangnan University, Jiangnan University, Wuxi, 214002, China.
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19
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Popgeorgiev N, Gil C, Berthenet K, Bertolin G, Ichim G. Shedding light on mitochondrial outer-membrane permeabilization and membrane potential: State of the art methods and biosensors. Semin Cell Dev Biol 2024; 156:58-65. [PMID: 37438211 DOI: 10.1016/j.semcdb.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/21/2023] [Accepted: 07/04/2023] [Indexed: 07/14/2023]
Abstract
Membrane structural integrity is essential for optimal mitochondrial function. These organelles produce the energy needed for all vital processes, provided their outer and inner membranes are intact. This prevents the release of mitochondrial apoptogenic factors into the cytosol and ensures intact mitochondrial membrane potential (ΔΨm) to sustain ATP production. Cell death by apoptosis is generally triggered by outer mitochondrial membrane permeabilization (MOMP), tightly coupled with loss of ΔΨ m. As these two processes are essential for both mitochondrial function and cell death, researchers have devised various techniques to assess them. Here, we discuss current methods and biosensors available for detecting MOMP and measuring ΔΨ m, focusing on their advantages and limitations and discuss what new imaging tools are needed to improve our knowledge of mitochondrial function.
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Affiliation(s)
- Nikolay Popgeorgiev
- Cancer Cell Death laboratory, part of LabEX DEVweCAN, Cancer Initiation and Tumoral Cell Identity Department, CRCL, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Lyon I, Institut Convergence PLAsCAN Lyon, France; Institut Universitaire de France (IUF), Paris, France
| | - Clara Gil
- Cancer Cell Death laboratory, part of LabEX DEVweCAN, Cancer Initiation and Tumoral Cell Identity Department, CRCL, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Lyon I, Institut Convergence PLAsCAN Lyon, France
| | - Kevin Berthenet
- Cancer Cell Death laboratory, part of LabEX DEVweCAN, Cancer Initiation and Tumoral Cell Identity Department, CRCL, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Lyon I, Institut Convergence PLAsCAN Lyon, France
| | - Giulia Bertolin
- CNRS, Univ Rennes, IGDR (Institute of Genetics and Development of Rennes), Rennes, France.
| | - Gabriel Ichim
- Cancer Cell Death laboratory, part of LabEX DEVweCAN, Cancer Initiation and Tumoral Cell Identity Department, CRCL, U1052 INSERM, UMR CNRS 5286, Centre Léon Bérard, Université Lyon I, Institut Convergence PLAsCAN Lyon, France.
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20
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Shkarina K, Broz P. Selective induction of programmed cell death using synthetic biology tools. Semin Cell Dev Biol 2024; 156:74-92. [PMID: 37598045 DOI: 10.1016/j.semcdb.2023.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 08/21/2023]
Abstract
Regulated cell death (RCD) controls the removal of dispensable, infected or malignant cells, and is thus essential for development, homeostasis and immunity of multicellular organisms. Over the last years different forms of RCD have been described (among them apoptosis, necroptosis, pyroptosis and ferroptosis), and the cellular signaling pathways that control their induction and execution have been characterized at the molecular level. It has also become apparent that different forms of RCD differ in their capacity to elicit inflammation or an immune response, and that RCD pathways show a remarkable plasticity. Biochemical and genetic studies revealed that inhibition of a given pathway often results in the activation of back-up cell death mechanisms, highlighting close interconnectivity based on shared signaling components and the assembly of multivalent signaling platforms that can initiate different forms of RCD. Due to this interconnectivity and the pleiotropic effects of 'classical' cell death inducers, it is challenging to study RCD pathways in isolation. This has led to the development of tools based on synthetic biology that allow the targeted induction of RCD using chemogenetic or optogenetic methods. Here we discuss recent advances in the development of such toolset, highlighting their advantages and limitations, and their application for the study of RCD in cells and animals.
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Affiliation(s)
- Kateryna Shkarina
- Institute of Innate Immunity, University Hospital Bonn, Germany; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
| | - Petr Broz
- Department of Immunobiology, University of Lausanne, Switzerland.
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21
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Nano M, Montell DJ. Apoptotic signaling: Beyond cell death. Semin Cell Dev Biol 2024; 156:22-34. [PMID: 37988794 DOI: 10.1016/j.semcdb.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/23/2023]
Abstract
Apoptosis is the best described form of regulated cell death, and was, until relatively recently, considered irreversible once particular biochemical points-of-no-return were activated. In this manuscript, we examine the mechanisms cells use to escape from a self-amplifying death signaling module. We discuss the role of feedback, dynamics, propagation, and noise in apoptotic signaling. We conclude with a revised model for the role of apoptosis in animal development, homeostasis, and disease.
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Affiliation(s)
- Maddalena Nano
- Molecular, Cellular, and Developmental Biology Department, University of California, Santa Barbara, CA 93106, USA; Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA.
| | - Denise J Montell
- Molecular, Cellular, and Developmental Biology Department, University of California, Santa Barbara, CA 93106, USA; Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA.
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22
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Cumming T, Levayer R. Toward a predictive understanding of epithelial cell death. Semin Cell Dev Biol 2024; 156:44-57. [PMID: 37400292 DOI: 10.1016/j.semcdb.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/15/2023] [Accepted: 06/22/2023] [Indexed: 07/05/2023]
Abstract
Epithelial cell death is highly prevalent during development and tissue homeostasis. While we have a rather good understanding of the molecular regulators of programmed cell death, especially for apoptosis, we still fail to predict when, where, how many and which specific cells will die in a tissue. This likely relies on the much more complex picture of apoptosis regulation in a tissular and epithelial context, which entails cell autonomous but also non-cell autonomous factors, diverse feedback and multiple layers of regulation of the commitment to apoptosis. In this review, we illustrate this complexity of epithelial apoptosis regulation by describing these different layers of control, all demonstrating that local cell death probability is a complex emerging feature. We first focus on non-cell autonomous factors that can locally modulate the rate of cell death, including cell competition, mechanical input and geometry as well as systemic effects. We then describe the multiple feedback mechanisms generated by cell death itself. We also outline the multiple layers of regulation of epithelial cell death, including the coordination of extrusion and regulation occurring downstream of effector caspases. Eventually, we propose a roadmap to reach a more predictive understanding of cell death regulation in an epithelial context.
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Affiliation(s)
- Tom Cumming
- Department of Developmental and Stem Cell Biology, Institut Pasteur, Université de Paris Cité, CNRS UMR 3738, 25 rue du Dr. Roux, 75015 Paris, France; Sorbonne Université, Collège Doctoral, F75005 Paris, France
| | - Romain Levayer
- Department of Developmental and Stem Cell Biology, Institut Pasteur, Université de Paris Cité, CNRS UMR 3738, 25 rue du Dr. Roux, 75015 Paris, France.
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23
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Zheng Y, Wang L, Zhao Y, Gong H, Qi Y, Qi L. Upregulation of SLAMF8 aggravates ischemia/reperfusion-induced ferroptosis and injury in cardiomyocyte. Int J Cardiol 2024; 399:131688. [PMID: 38158136 DOI: 10.1016/j.ijcard.2023.131688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Myocardial infarction (MI) is a cardiovascular diseases, that seriously threatens human life. Signaling lymphocytic activation molecule family member 8 (SLAMF8) has been discovered to regulate the development and function of many immune cells. However, there are limited reports on SLAMF8 in the field of cardiopathy, and its regulatory role also remains unclear. METHODS The mRNA and protein expressions of genes were examined through RT-qPCR and western blot. The infarct size in heart was assessed through TTC staining. The pathological section of heart tissue was evaluated through HE staining. The iron, Fe2+, MDA and SOD levels were assessed through the corresponding commercial kits. The ROS level was detected through Immunofluorescence (IF) staining. The cell viability and cell apoptosis were assessed through MTT assay and flow cytometry. RESULTS Through GEO (GSE84796) database, SLAMF8 exhibited higher expression in heart failure patients. Furthermore, the ischemia/reperfusion SD rat (ischemia/reperfusion, I/R treatment) and H9C2 cell (hypoxia/reoxygenation, H/R treatment) models were set up. The mRNA and protein levels of SLAMF8 were upregulated in ischemia/reperfusion SD rat and H9C2 cell models. In addition, SLAMF8 inhibition alleviated ischemia/reperfusion-induced myocardial injury in SD rats. Moreover, SLAMF8 suppression inhibited ischemia/reperfusion-induced ferroptosis and oxidative stress. Further experiments were performed in H/R stimulated H9C2 cells, and the results showed that SLAMF8 knockdown alleviated H/R-induced cardiomyocyte death, ferroptosis and oxidative stress in H/R-induced cardiomyocyte. Lastly, SLAMF8 activated the TLR4/NOX4 pathway in I/R treated-SD rats or H/R treated-H9C2 cells. CONCLUSION SLAMF8 aggravated ischemia/reperfusion-induced ferroptosis and injury in cardiomyocyte. This discovery may provide a useful bio-target for MI treatment.
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Affiliation(s)
- Yuli Zheng
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221000, China
| | - Liudi Wang
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221000, China; Clinical College, Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Yan Zhao
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221000, China
| | - Haibin Gong
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221000, China; Department of Cardiology, Xuzhou Institute of Cardiovascular Disease, Xuzhou, Jiangsu 221000, China.
| | - Yao Qi
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221000, China
| | - Le Qi
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230000, China
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24
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Hou S, Zhang J, Jiang X, Yang Y, Shan B, Zhang M, Liu C, Yuan J, Xu D. PARP5A and RNF146 phase separation restrains RIPK1-dependent necroptosis. Mol Cell 2024; 84:938-954.e8. [PMID: 38272024 DOI: 10.1016/j.molcel.2023.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/14/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024]
Abstract
Phase separation is a vital mechanism that mediates the formation of biomolecular condensates and their functions. Necroptosis is a lytic form of programmed cell death mediated by RIPK1, RIPK3, and MLKL downstream of TNFR1 and has been implicated in mediating many human diseases. However, whether necroptosis is regulated by phase separation is not yet known. Here, we show that upon the induction of necroptosis and recruitment by the adaptor protein TAX1BP1, PARP5A and its binding partner RNF146 form liquid-like condensates by multivalent interactions to perform poly ADP-ribosylation (PARylation) and PARylation-dependent ubiquitination (PARdU) of activated RIPK1 in mouse embryonic fibroblasts. We show that PARdU predominantly occurs on the K376 residue of mouse RIPK1, which promotes proteasomal degradation of kinase-activated RIPK1 to restrain necroptosis. Our data demonstrate that PARdU on K376 of mouse RIPK1 provides an alternative cell death checkpoint mediated by phase separation-dependent control of necroptosis by PARP5A and RNF146.
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Affiliation(s)
- Shouqiao Hou
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 101408, China
| | - Jian Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215031, China
| | - Xiaoyan Jiang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yuanxin Yang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; University of Chinese Academy of Sciences, Beijing 101408, China
| | - Bing Shan
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China
| | - Mengmeng Zhang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China
| | - Cong Liu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China; State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Junying Yuan
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China
| | - Daichao Xu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China; Shanghai Key Laboratory of Aging Studies, Shanghai 201210, China; State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China.
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25
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Huang YC, Hsu CC, Fu TC, Wang JS. Interval aerobic/resistance exercise training depresses adrenergic-induced apoptosis of lymphocytes in sedentary males. Eur J Appl Physiol 2024; 124:837-848. [PMID: 37712975 DOI: 10.1007/s00421-023-05311-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 08/30/2023] [Indexed: 09/16/2023]
Abstract
PURPOSE Adrenergic stimulation affects lymphocyte autophagy and apoptosis by activating β1-adrenergic receptor (β1-AR) and G protein-coupled receptor kinase 2 (GRK-2) downstream signaling. This study investigated how combined aerobic and resistance exercise training on the interval or continuous pattern influences aerobic/muscular fitness and β1-AR/GRK-2 signaling, and corresponding apoptosis/autophagy of lymphocytes in sedentary males. METHODS Thirty-four sedentary males were randomized into interval training (IT, age = 22.5 ± 0.6 years, fitness level = 47.5 ± 0.9 mL/min/kg, body mass index (BMI) = 22.4 ± 0.4 kg/m2, n = 17) and continuous training (CT, age = 21.6 ± 0.4 years, fitness level = 45.2 ± 1.0 mL/min/kg, BMI = 22.2 ± 0.3 kg/m2, n = 17) groups. These subjects performed IT (bicycle exercise at alternating 40% and 80%VO2 reserve (VO2R) and isokinetic exercise at alternating 60°/s and 180°/s) or CT (bicycle exercise at continuously 60%VO2R and isokinetic exercise at continuously 120°/s) for 30 min/day, 5 days/week for 6 weeks. Aerobic capacity and muscular strength/endurance were determined by the graded exercise test (GXT) and isokinetic strength test, respectively. Blood lymphocyte autophagy/apoptosis and β1-AR/GRK-2 signaling were analyzed using flow cytometry. RESULTS Both IT and CT groups increased isokinetic strengths at various angular velocities, whereas only IT significantly enhanced muscle endurance, indicated by lowered fatigue index from 47.0 ± 1.3% to 41.8 ± 1.6% (P < 0.05). Moreover, the IT group (143 ± 7%) revealed a higher improvement in VO2peak than CT group (132 ± 6%) (P < 0.05). Acute GXT augmented (i) GRK-2 and protein kinase A expressions, (ii) LAMP-2 upregulation and acridine orange staining, (iii) mitochondrial transmembrane potential diminishing, caspase-3 activation, and phosphatidylserine (PS) exposure caused by epinephrine in blood lymphocytes. However, the degree of epinephrine-induced lymphocyte PS exposure potentiated by GXT was suppressed from 65.2 ± 5.2% to 47.4 ± 6.5% following 6 weeks of the IT (P < 0.05). CONCLUSION The IT may be considered more beneficial than CT in terms of improving aerobic/muscular fitness and simultaneously ameliorating apoptosis of blood lymphocyte evoked by intense exercise or adrenergic stimulation in sedentary males.
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Affiliation(s)
- Yu-Chieh Huang
- Department of Physical Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Chih-Chin Hsu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Tieh-Cheng Fu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Jong-Shyan Wang
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan.
- Healthy Aging Research Center, Graduate Institute of Rehabilitation Science, Medical College, Chang Gung University, Tao-Yuan, Taiwan.
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan.
- Graduate Institute of Rehabilitation Science, Chang Gung University, 259 Wen-Hwa 1St Road, Kwei-Shan, Tao-Yuan, 333, Taiwan.
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26
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Schulze-Luehrmann J, Liebler-Tenorio E, Felipe-López A, Lührmann A. Cell death induction facilitates egress of Coxiella burnetii from infected host cells at late stages of infection. Mol Microbiol 2024; 121:513-528. [PMID: 38115201 DOI: 10.1111/mmi.15210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023]
Abstract
Intracellular bacteria have evolved mechanisms to invade host cells, establish an intracellular niche that allows survival and replication, produce progeny, and exit the host cell after completion of the replication cycle to infect new target cells. Bacteria exit their host cell by (i) initiation of apoptosis, (ii) lytic cell death, and (iii) exocytosis. While bacterial egress is essential for bacterial spreading and, thus, pathogenesis, we currently lack information about egress mechanisms for the obligate intracellular pathogen C. burnetii, the causative agent of the zoonosis Q fever. Here, we demonstrate that C. burnetii inhibits host cell apoptosis early during infection, but induces and/or increases apoptosis at later stages of infection. Only at later stages of infection did we observe C. burnetii egress, which depends on previously established large bacteria-filled vacuoles and a functional intrinsic apoptotic cascade. The released bacteria are not enclosed by a host cell membrane and can infect and replicate in new target cells. In summary, our data argue that C. burnetii egress in a non-synchronous way at late stages of infection. Apoptosis-induction is important for C. burnetii egress, but other pathways most likely contribute.
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Affiliation(s)
- Jan Schulze-Luehrmann
- Mikrobiologisches Institut, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | | | - Alfonso Felipe-López
- Mikrobiologisches Institut, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Anja Lührmann
- Mikrobiologisches Institut, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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27
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Della Torre L, Beato A, Capone V, Carannante D, Verrilli G, Favale G, Del Gaudio N, Megchelenbrink WL, Benedetti R, Altucci L, Carafa V. Involvement of regulated cell deaths in aging and age-related pathologies. Ageing Res Rev 2024; 95:102251. [PMID: 38428821 DOI: 10.1016/j.arr.2024.102251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/16/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Aging is a pathophysiological process that causes a gradual and permanent reduction in all biological system functions. The phenomenon is caused by the accumulation of endogenous and exogenous damage as a result of several stressors, resulting in significantly increased risks of various age-related diseases such as neurodegenerative diseases, cardiovascular diseases, metabolic diseases, musculoskeletal diseases, and immune system diseases. In addition, aging appears to be connected with mis-regulation of programmed cell death (PCD), which is required for regular cell turnover in many tissues sustained by cell division. According to the recent nomenclature, PCDs are physiological forms of regulated cell death (RCD) useful for normal tissue development and turnover. To some extent, some cell types are connected with a decrease in RCD throughout aging, whereas others are related with an increase in RCD. Perhaps the widespread decline in RCD markers with age is due to a slowdown of the normal rate of homeostatic cell turnover in various adult tissues. As a result, proper RCD regulation requires a careful balance of many pro-RCD and anti-RCD components, which may render cell death signaling pathways more sensitive to maladaptive signals during aging. Current research, on the other hand, tries to further dive into the pathophysiology of aging in order to develop therapies that improve health and longevity. In this scenario, RCD handling might be a helpful strategy for human health since it could reduce the occurrence and development of age-related disorders, promoting healthy aging and lifespan. In this review we propose a general overview of the most recent RCD mechanisms and their connection with the pathophysiology of aging in order to promote targeted therapeutic strategies.
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Affiliation(s)
- Laura Della Torre
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Antonio Beato
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Vincenza Capone
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Daniela Carannante
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Giulia Verrilli
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Gregorio Favale
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Nunzio Del Gaudio
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Wouter Leonard Megchelenbrink
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy; Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, Utrecht 3584 CS, the Netherlands
| | - Rosaria Benedetti
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy
| | - Lucia Altucci
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy; Biogem, Molecular Biology and Genetics Research Institute, Ariano Irpino 83031, Italy; IEOS CNR, Napoli 80138, Italy; Programma di Epigenetica Medica, A.O.U. "Luigi Vanvitelli", Piazza Luigi Miraglia 2, Napoli 80138, Italy
| | - Vincenzo Carafa
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania "Luigi Vanvitelli", Vico De Crecchio 7, Napoli 80138, Italy; Biogem, Molecular Biology and Genetics Research Institute, Ariano Irpino 83031, Italy.
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28
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Zheng X, Chu B. The biology of mitochondrial carrier homolog 2. Mitochondrion 2024; 75:101837. [PMID: 38158152 DOI: 10.1016/j.mito.2023.101837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/24/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
The mitochondrial carrier system is in charge of small molecule transport between the mitochondria and the cytoplasm as well as being an integral portion of the core mitochondrial function. One member of the mitochondrial carrier family of proteins, mitochondrial carrier homolog 2 (MTCH2), is characterized as a critical mitochondrial outer membrane protein insertase participating in mitochondrial homeostasis. Accumulating evidence demonstrate that MTCH2 is integrally linked to cell death and mitochondrial metabolism, and its genetic alterations cause a variety of disease phenotypes, ranging from obesity, Alzheimer's disease, and tumor. To provide a comprehensive insight into the current understanding of MTCH2, we present a detailed description of the physiopathological functions of MTCH2, ranging from apoptosis, mitochondrial dynamics, and metabolic homeostasis regulation. Moreover, we summarized the impact of MTCH2 in human diseases, and highlighted tumors, to assess the role of MTCH2 mutations or variable expression on pathogenesis and target therapeutic options.
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Affiliation(s)
- Xiaohe Zheng
- Department of Pathology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai 317000, China
| | - Binxiang Chu
- Department of Orthopedic, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai 317000, China.
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29
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Killarney ST, Tait SWG, Green DR, Wood KC. Sublethal engagement of apoptotic pathways in residual cancer. Trends Cell Biol 2024; 34:225-238. [PMID: 37573235 PMCID: PMC10858294 DOI: 10.1016/j.tcb.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 08/14/2023]
Abstract
Cytotoxic chemo-, radio-, and targeted therapies frequently elicit apoptotic cancer cell death. Mitochondrial outer membrane permeabilization (MOMP) is a critical, regulated step in this apoptotic pathway. The residual cancer cells that survive treatment serve as the seeds of eventual relapse and are often functionally characterized by their transient tolerance of multiple therapeutic treatments. New studies suggest that, in these cells, a sublethal degree of MOMP, reflective of incomplete apoptotic commitment, is widely observed. Here, we review recent evidence that this sublethal MOMP drives the aggressive features of residual cancer cells while templating a host of unique vulnerabilities, highlighting how failed apoptosis may counterintuitively enable new therapeutic strategies to target residual disease (RD).
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Affiliation(s)
- Shane T Killarney
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA
| | - Stephen W G Tait
- Cancer Research UK Beatson Institute, Switchback Road, Glasgow G61 1BD, UK
| | - Douglas R Green
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
| | - Kris C Wood
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA.
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30
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Vringer E, Heilig R, Riley JS, Black A, Cloix C, Skalka G, Montes-Gómez AE, Aguado A, Lilla S, Walczak H, Gyrd-Hansen M, Murphy DJ, Huang DT, Zanivan S, Tait SW. Mitochondrial outer membrane integrity regulates a ubiquitin-dependent and NF-κB-mediated inflammatory response. EMBO J 2024; 43:904-930. [PMID: 38337057 PMCID: PMC10943237 DOI: 10.1038/s44318-024-00044-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
Mitochondrial outer membrane permeabilisation (MOMP) is often essential for apoptosis, by enabling cytochrome c release that leads to caspase activation and rapid cell death. Recently, MOMP has been shown to be inherently pro-inflammatory with emerging cellular roles, including its ability to elicit anti-tumour immunity. Nonetheless, how MOMP triggers inflammation and how the cell regulates this remains poorly defined. We find that upon MOMP, many proteins localised either to inner or outer mitochondrial membranes are ubiquitylated in a promiscuous manner. This extensive ubiquitylation serves to recruit the essential adaptor molecule NEMO, leading to the activation of pro-inflammatory NF-κB signalling. We show that disruption of mitochondrial outer membrane integrity through different means leads to the engagement of a similar pro-inflammatory signalling platform. Therefore, mitochondrial integrity directly controls inflammation, such that permeabilised mitochondria initiate NF-κB signalling.
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Affiliation(s)
- Esmee Vringer
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Rosalie Heilig
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Joel S Riley
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
- Institute of Developmental Immunology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Annabel Black
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Catherine Cloix
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - George Skalka
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Alfredo E Montes-Gómez
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Aurore Aguado
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Sergio Lilla
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Henning Walczak
- Centre for Cell Death, Cancer, and Inflammation (CCCI), UCL Cancer Institute, University College London, London, UK
- CECAD Cluster of Excellence, University of Cologne, Cologne, Germany
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Mads Gyrd-Hansen
- Department of Immunology and Microbiology, LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Daniel J Murphy
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Danny T Huang
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Sara Zanivan
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK
| | - Stephen Wg Tait
- Cancer Research UK Scotland Institute, Switchback Road, Glasgow, G61 1BD, UK.
- School of Cancer Sciences, University of Glasgow, Switchback Road, Glasgow, G61 1BD, UK.
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Luo L, Feng F, Zhong A, Guo N, He J, Li C. The advancement of polysaccharides in disease modulation: Multifaceted regulation of programmed cell death. Int J Biol Macromol 2024; 261:129669. [PMID: 38272424 DOI: 10.1016/j.ijbiomac.2024.129669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024]
Abstract
Programmed cell death (PCD), also known as regulatory cell death (RCD), is a process that occurs in all organisms and is closely linked to both normal physiological processes and disease states. Various signaling pathways, such as TP53, KRAS, NOTCH, hypoxia, and metabolic reprogramming, have been found to regulate RCD. Polysaccharides, which are essential natural products, have been the subject of extensive research in the fields of food, nutrition, and medicine due to their wide range of pharmacological effects. Studies have shown that polysaccharides have biological activities and the potential to target signal transduction pathways for the treatment of diseases. This paper provides a review of the mechanisms through which polysaccharides exert their therapeutic effects at different levels and explores the relationship between different types of RCD and human diseases. The aim of this review is to provide a theoretical basis for the further clinical use and application of polysaccharide bioactivities.
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Affiliation(s)
- Lianxiang Luo
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine. Guangdong Medical University, Zhanjiang, Guangdong 524023, China.
| | - Fuhai Feng
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Ai Zhong
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Nuoqing Guo
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Jiake He
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Chenying Li
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
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Hong H, Xu G, Bao G, Zhang J, Chen C, Chen J, Wu C, Jiang J, Huang J, Huang H, Cui Z. VIRMA promotes neuron apoptosis via inducing m6A methylation of STK10 in spinal cord injury animal models. CNS Neurosci Ther 2024; 30:e14453. [PMID: 37721438 PMCID: PMC10916435 DOI: 10.1111/cns.14453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/08/2023] [Accepted: 08/22/2023] [Indexed: 09/19/2023] Open
Abstract
BACKGROUND Spinal cord injury (SCI) occurs as a devastating neuropathic disease. The role of serine-threonine kinase 10 (STK10) in the development of SCI remains unclear. OBJECTIVE This study aimed to investigate the action of m6A methylation on STK10 in the apoptosis of spinal cord neurons in the pathogenesis of SCI and the possible underlying mechanisms. METHODS Rat model of SCI was established and subsequently evaluated for motor function, pathological conditions, and apoptosis of spinal cord neurons. And the effects of overexpression of STK10 on neuronal cells in animal models of spinal cord injury and glyoxylate deprivation (OGD) cell models were evaluated. m6A2Target database and SRAMP database were used to predict the m6A methylation sites of STK10. The methylation kits were used to detect overall m6A methylation. Finally, the interaction between STK10 and vir like m6A methyltransferase associated (VIRMA) was explored in animal and cellular models. RESULTS STK10 is markedly decreased in spinal cord injury models and overexpression of STK10 inhibits neuronal apoptosis. VIRMA can induce m6A methylation of STK10. VIRMA is over-expressed in spinal cord injury models and negatively regulates the expression of STK10. m6A methylation and apoptosis of neuronal cells are reduced by the knockdown of VIRMA and STK10 shRNA have shown the opposite effects. CONCLUSIONS VIRMA promotes neuronal apoptosis in spinal cord injury by regulating STK10 m6A methylation.
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Affiliation(s)
- Hongxiang Hong
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Guanhua Xu
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
- Research Institute for Spine and Spinal Cord Disease of Nantong UniversityNantongChina
| | - Guofeng Bao
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Jinlong Zhang
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Chu Chen
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Jiajia Chen
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Chunshuai Wu
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Jiawei Jiang
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Jiayi Huang
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
| | - Haiming Huang
- Department of UltrasonographyThe Second Affiliated Hospital of Nantong UniversityNantong UniversityNantongChina
| | - Zhiming Cui
- Department of Spine SurgeryThe second Affiliated Hospital of Nantong UniversityNantongChina
- Research Institute for Spine and Spinal Cord Disease of Nantong UniversityNantongChina
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Heusel AT, Rapp S, Stamminger T, Scherer M. IE1 of Human Cytomegalovirus Inhibits Necroptotic Cell Death via Direct and Indirect Modulation of the Necrosome Complex. Viruses 2024; 16:290. [PMID: 38400065 PMCID: PMC10893529 DOI: 10.3390/v16020290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/29/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Programmed necrosis is an integral part of intrinsic immunity, serving to combat invading pathogens and restricting viral dissemination. The orchestration of necroptosis relies on a precise interplay within the necrosome complex, which consists of RIPK1, RIPK3 and MLKL. Human cytomegalovirus (HCMV) has been found to counteract the execution of necroptosis during infection. In this study, we identify the immediate-early 1 (IE1) protein as a key antagonist of necroptosis during HCMV infection. Infection data obtained in a necroptosis-sensitive cell culture system revealed a robust regulation of post-translational modifications (PTMs) of the necrosome complex as well as the importance of IE1 expression for an effective counteraction of necroptosis. Interaction analyses unveiled an association of IE1 and RIPK3, which occurs in an RHIM-domain independent manner. We propose that this interaction manipulates the PTMs of RIPK3 by promoting its ubiquitination. Furthermore, IE1 was found to exert an indirect activity by modulating the levels of MLKL via antagonizing its interferon-mediated upregulation. Overall, we claim that IE1 performs a broad modulation of innate immune signaling to impede the execution of necroptotic cell death, thereby generating a favorable environment for efficient viral replication.
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Affiliation(s)
| | | | - Thomas Stamminger
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (A.T.H.); (S.R.)
| | - Myriam Scherer
- Institute of Virology, Ulm University Medical Center, 89081 Ulm, Germany; (A.T.H.); (S.R.)
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34
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Wang B, Weng J, Zhang TY, Xu YT, Ye D, Xu JJ, Zhao WW. Single-Cell Caspase-3 Measurement Using a Biomimetic Nanochannel. Anal Chem 2024; 96:2094-2099. [PMID: 38258322 DOI: 10.1021/acs.analchem.3c04782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Direct single-cell caspase-3 (Casp-3) analysis has remained challenging. A study of single-cell Casp-3 could contribute to revealing the fundamental pathogenic mechanisms in Casp-3-associated diseases. Here, a biomimetic nanochannel capable of single-cell sampling and ionic detection of intracellular Casp-3 is devised, which is established upon the installment of target-specific organic molecules (luc-DEVD) within the orifice of a glass nanopipette. The specific cleavage of luc-DEVD by Casp-3 could induce changes of inner-surface chemical groups and charge properties, thus altering the ionic response of the biomimetic nanochannel for direct Casp-3 detection. The practical applicability of this biomimetic nanochannel is confirmed by probing intracellular Casp-3 fluctuation upon drug stimulation and quantifying the Casp-3 evolution during induced apoptosis. This work realizes ionic single-cell Casp-3 analysis and provides a different perspective for single-cell protein analysis.
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Affiliation(s)
- Bing Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jianhui Weng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Tian-Yang Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi-Tong Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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35
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Wang L, Zhang Y, Huang M, Yuan Y, Liu X. RIP3 in Necroptosis: Underlying Contributions to Traumatic Brain Injury. Neurochem Res 2024; 49:245-257. [PMID: 37743445 DOI: 10.1007/s11064-023-04038-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/07/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Traumatic brain injury (TBI) is a global public safety issue that poses a threat to death, characterized by high fatality rates, severe injuries and low recovery rates. There is growing evidence that necroptosis regulates the pathophysiological processes of a variety of diseases, particularly those affecting the central nervous system. Thus, moderate necroptosis inhibition may be helpful in the management of TBI. Receptor-interacting protein kinase (RIP) 3 is a key mediator in the necroptosis, and its absence helps restore the microenvironment at the injured site and improve cognitive impairment after TBI. In this report, we review different domains of RIP3, multiple analyses of necroptosis, and associations between necroptosis and TBI, RIP3, RIP1, and mixed lineage kinase domain-like. Next, we elucidate the potential involvement of RIP3 in TBI and highlight how RIP3 deficiency enhances neuronal function.
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Affiliation(s)
- Lvxia Wang
- School of Life and Environmental Sciences, Shaoxing University, Zhejiang, China
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Yiling Yuan
- Department of Biosciences, Durham University, Durham, UK
| | - Xuehong Liu
- School of Life and Environmental Sciences, Shaoxing University, Zhejiang, China.
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China.
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36
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Xu M, Li F, Xu X, Hu N, Miao J, Zhao Y, Ji S, Wang Y, Wang L. Proteomic analysis reveals that cigarette smoke exposure diminishes ovarian reserve in mice by disrupting the CREB1-mediated ovarian granulosa cell proliferation-apoptosis balance. Ecotoxicol Environ Saf 2024; 271:115989. [PMID: 38242047 DOI: 10.1016/j.ecoenv.2024.115989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/31/2023] [Accepted: 01/13/2024] [Indexed: 01/21/2024]
Abstract
Exposure to cigarette smoke (CS) adversely affects ovarian health and it is currently unknown how CS exposure causes ovarian injury. This study compared the differences in proteomics between CS exposure and healthy control groups using liquid chromatography-tandem mass spectrometry quantitative proteomics to further understand the molecular mechanism of ovarian cell injury in mice exposed to CS. Furthermore, western blotting and qPCR were carried out to validate the proteomic analysis outcomes. CREB1 was selected from the differentially expressed proteins, and then the down-regulation of CREB1 and phosphorylated CREB1(Ser133) expressions were confirmed in mice ovarian tissue and human ovarian granulosa cells (KGN cells) after CS exposure. In addition, the expressions of apoptosis-related proteins BCL-2 and BCL-XL were downregulated, and BAX expression was up-regulated. Moreover, the results of cellular immunofluorescence, flow cytometry, and transmission electron microscopy (TEM) showed that cigarette smoke extract (CSE) efficiently stimulated the production of reactive oxygen species, apoptosis, G1 phase arrest, mitochondrial membrane potential decreases, and ultrastructural changes in KGN cells. KG-501 (CREB inhibitor) aggravated CSE-induced mitochondrial dysfunction and apoptosis-proliferation imbalance in KGN cells mediated by down-regulated CREB1/BCL-2 axis. In addition, CREB1 over-expression partially restores mitochondrial dysfunction and apoptosis-proliferation imbalance of KGN cells induced by CSE. The results suggested that CSE diminished ovarian reserve in mice by disrupting the CREB1-mediated ovarian granulosa cell (GCs) proliferation-apoptosis balance and provided possible therapeutic targets for the clinical intervention of premature ovarian failure (POI) caused by CS exposure.
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Affiliation(s)
- Mengting Xu
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - Fang Li
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - XiaoYan Xu
- Assisted Reproduction Centre of Shengjing Hospital, China Medical University, Shenyang 110004, China
| | - Nengyin Hu
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - Jianing Miao
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - Yanhui Zhao
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - Sailing Ji
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China
| | - Ying Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China.
| | - Lili Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang 110004, China; Medical Research Center of Shengjing Hospital, China Medical University, Shenyang 110004, China; Key Laboratory of Research and Application of Animal Model for Environmental and Metabolic Diseases, Liaoning Province, China.
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37
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Yao D, Chen E, Li Y, Wang K, Liao Z, Li M, Huang L. The role of endoplasmic reticulum stress, mitochondrial dysfunction and their crosstalk in intervertebral disc degeneration. Cell Signal 2024; 114:110986. [PMID: 38007189 DOI: 10.1016/j.cellsig.2023.110986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023]
Abstract
Low back pain (LBP) is a pervasive global health issue. Roughly 40% of LBP cases are attributed to intervertebral disc degeneration (IVDD). While the underlying mechanisms of IVDD remain incompletely understood, it has been confirmed that apoptosis and extracellular matrix (ECM) degradation caused by many factors such as inflammation, oxidative stress, calcium (Ca2+) homeostasis imbalance leads to IVDD. Endoplasmic reticulum (ER) stress and mitochondrial dysfunction are involved in these processes. The initiation of ER stress precipitates cell apoptosis, and is also related to inflammation, levels of oxidative stress, and Ca2+ homeostasis. Additionally, mitochondrial dynamics, antioxidative systems, disruption of Ca2+ homeostasis are closely associated with Reactive Oxygen Species (ROS) and inflammation, promoting cell apoptosis. However, numerous crosstalk exists between the ER and mitochondria, where they interact through inflammatory cytokines, signaling pathways, ROS, or key molecules such as CHOP, forming positive and negative feedback loops. Furthermore, the contact sites between the ER and mitochondria, known as mitochondria-associated membranes (MAM), facilitate direct signal transduction such as Ca2+ transfer. However, the current attention towards this issue is insufficient. Therefore, this review summarizes the impacts of ER stress and mitochondrial dysfunction on IVDD, along with the possibly potential crosstalk between them, aiming to unveil novel avenues for IVDD intervention.
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Affiliation(s)
- Dengbo Yao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Enming Chen
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yuxi Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Kun Wang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.; Department of Orthopedics Surgery, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Zhuangyao Liao
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Ming Li
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Lin Huang
- Department of Orthopedics Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China..
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38
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An Y, Wang X, Guan X, Yuan P, Liu Y, Wei L, Wang F, Qi X. Endoplasmic reticulum stress-mediated cell death in cardiovascular disease. Cell Stress Chaperones 2024; 29:158-174. [PMID: 38295944 PMCID: PMC10939083 DOI: 10.1016/j.cstres.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 02/24/2024] Open
Abstract
The endoplasmic reticulum (ER) plays a vital function in maintaining cellular homeostasis. Endoplasmic reticulum stress (ERS) can trigger various modes of cell death by activating the unfolded protein response (UPR) signaling pathway. Cell death plays a crucial role in the occurrence and development of diseases such as cancer, liver diseases, neurological diseases, and cardiovascular diseases. Several cardiovascular diseases including hypertension, atherosclerosis, and heart failure are associated with ER stress. ER stress-mediated cell death is of interest in cardiovascular disease. Moreover, an increasing body of evidence supports the potential of modulating ERS for treating cardiovascular disease. This paper provides a comprehensive review of the UPR signaling pathway, the mechanisms that induce cell death, and the modes of cell death in cardiovascular diseases. Additionally, we discuss the mechanisms of ERS and UPR in common cardiovascular diseases, along with potential therapeutic strategies.
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Affiliation(s)
- Yajuan An
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xinshuang Wang
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiuju Guan
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Peng Yuan
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue Liu
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Liping Wei
- Department of Cardiology, Tianjin Union Medical Center, Tianjin, China
| | - Fei Wang
- Department of Vascular Surgery, Hebei General Hospital, Hebei, China
| | - Xin Qi
- School of Graduate Studies, Tianjin University of Traditional Chinese Medicine, Tianjin, China; Department of Cardiology, Tianjin Union Medical Center, Tianjin, China.
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39
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Baena-Lopez LA, Wang L, Wendler F. Cellular stress management by caspases. Curr Opin Cell Biol 2024; 86:102314. [PMID: 38215516 DOI: 10.1016/j.ceb.2023.102314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/14/2024]
Abstract
Cellular stress plays a pivotal role in the onset of numerous human diseases. Consequently, the removal of dysfunctional cells, which undergo excessive stress-induced damage via various cell death pathways, including apoptosis, is essential for maintaining organ integrity and function. The evolutionarily conserved family of cysteine-aspartic-proteases, known as caspases, has been a key player in orchestrating apoptosis. However, recent research has unveiled the capability of these enzymes to govern fundamental cellular processes without triggering cell death. Remarkably, some of these non-lethal functions of caspases may contribute to restoring cellular equilibrium in stressed cells. This manuscript discusses how caspases can function as cellular stress managers and their potential impact on human health and disease. Additionally, it sheds light on the limitations of caspase-based therapies, given our still incomplete understanding of the biology of these enzymes, particularly in non-apoptotic contexts.
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Affiliation(s)
| | - Li Wang
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX13RE, UK
| | - Franz Wendler
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX13RE, UK. https://twitter.com/wendlerfranz
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40
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Zhang J, Du Y, Li Y. Rosmarinic acid attenuates TNF-α induced cardiomyocyte injury via regulating miR-344a-3p. Cell Mol Biol (Noisy-le-grand) 2024; 70:207-212. [PMID: 38372095 DOI: 10.14715/cmb/2024.70.1.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Indexed: 02/20/2024]
Abstract
To investigate whether rosmarinic acid protects cardiomyocytes from inflammatory damage through miRNAs, high-throughput sequencing and bioinformatics analysis were performed to identify TNF-α-induced inflammatory damage in cardiomyocytes and miRNAs differentially expressed in TNF-α-induced inflammatory injury in cardiomyocytes, and the bioinformatics analysis shown that the expression levels of 10 miRNAs were significantly up-regulated, and the expression levels of 6 miRNAs were significantly down-regulated. Among them, the expression level of miR-344a-3p was significantly up-regulated in the experimental group, while the expression level of miR-449c-5p was significantly down-regulated in experimental group of cells. The target genes of miR-344a-3p and miR-449c-5p were CCR1 and ATP2B4 respectively. The luciferase reporter system showed that luciferase activity in the WT-CCR1+miR-344a-3p mimic group was significantly decreased, and the expression of CCR1 was significantly decreased at mRNA and protein level after miR-344a-3p was transfected into H9C2 cells, indicating that TNF-α-induced inflammatory injury in cardiomyocytes, rosmarinic acid may up-regulate the expression of miR-344a-3p, thereby inhibiting the expression of CCR1 and ultimately protecting the cardiomyocytes from inflammatory damage. Thus, we thought that CCR1 might be a new therapeutic target for cardiomyocyte injury.
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Affiliation(s)
- Jun Zhang
- Department of Cardiology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, Jiangsu Province, China.
| | - Yingqiang Du
- Department of Cardiology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, Jiangsu Province, China.
| | - Yafei Li
- Department of Cardiology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou 215000, Jiangsu Province, China.
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Chen R, Zou J, Zhong X, Li J, Kang R, Tang D. HMGB1 in the interplay between autophagy and apoptosis in cancer. Cancer Lett 2024; 581:216494. [PMID: 38007142 DOI: 10.1016/j.canlet.2023.216494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/25/2023] [Accepted: 11/08/2023] [Indexed: 11/27/2023]
Abstract
Lysosome-mediated autophagy and caspase-dependent apoptosis are dynamic processes that maintain cellular homeostasis, ensuring cell health and functionality. The intricate interplay and reciprocal regulation between autophagy and apoptosis are implicated in various human diseases, including cancer. High-mobility group box 1 (HMGB1), a nonhistone chromosomal protein, plays a pivotal role in coordinating autophagy and apoptosis levels during tumor initiation, progression, and therapy. The regulation of autophagy machinery and the apoptosis pathway by HMGB1 is influenced by various factors, including the protein's subcellular localization, oxidative state, and interactions with binding partners. In this narrative review, we provide a comprehensive overview of the structure and function of HMGB1, with a specific focus on the interplay between autophagic degradation and apoptotic death in tumorigenesis and cancer therapy. Gaining a comprehensive understanding of the significance of HMGB1 as a biomarker and its potential as a therapeutic target in tumor diseases is crucial for advancing our knowledge of cell survival and cell death.
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Affiliation(s)
- Ruochan Chen
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
| | - Ju Zou
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xiao Zhong
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jie Li
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA.
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42
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Lindsay-Mosher N, Lusk S, Pearson BJ. Planarians require ced-12/elmo-1 to clear dead cells by excretion through the gut. Cell Rep 2024; 43:113621. [PMID: 38165802 DOI: 10.1016/j.celrep.2023.113621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/13/2023] [Accepted: 12/08/2023] [Indexed: 01/04/2024] Open
Abstract
Cell corpse removal is a critical component of both development and homeostasis throughout the animal kingdom. Extensive research has revealed many of the mechanisms involved in corpse removal, typically involving engulfment and digestion by another cell; however, the dynamics of cell corpse clearance in adult tissues remain unclear. Here, we track cell death in the adult planarian Schmidtea mediterranea and find that, following light-induced cell death, pigment cell corpses transit to the gut and are excreted from the animal. Gut phagocytes, previously only known to phagocytose food, are required for pigment cells to enter the gut lumen. Finally, we show that the planarian ortholog of ced-12/engulfment and cell motility (ELMO) is required for corpse phagocytosis and removal through the gut. In total, we present a mechanism of cell clearance in an adult organism involving transit of dead cells to the gut, transport into the gut by phagocytes, and physical excretion of debris.
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Affiliation(s)
- Nicole Lindsay-Mosher
- The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON, Canada
| | - Sarah Lusk
- Papé Research Institute, Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA
| | - Bret J Pearson
- The Hospital for Sick Children, Program in Developmental and Stem Cell Biology, Toronto, ON M5G0A4, Canada; University of Toronto, Department of Molecular Genetics, Toronto, ON, Canada; Papé Research Institute, Department of Pediatrics, Oregon Health & Science University, Portland, OR 97239, USA.
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43
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Pak TF, Pitt-Francis J, Baker RE. A mathematical framework for the emergence of winners and losers in cell competition. J Theor Biol 2024; 577:111666. [PMID: 37956955 DOI: 10.1016/j.jtbi.2023.111666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 09/27/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023]
Abstract
Cell competition is a process in multicellular organisms where cells interact with their neighbours to determine a "winner" or "loser" status. The loser cells are eliminated through programmed cell death, leaving only the winner cells to populate the tissue. Cell competition is context-dependent; the same cell type can win or lose depending on the cell type it is competing against. Hence, winner/loser status is an emergent property. A key question in cell competition is: how do cells acquire their winner/loser status? In this paper, we propose a mathematical framework for studying the emergence of winner/loser status based on a set of quantitative criteria that distinguishes competitive from non-competitive outcomes. We apply this framework in a cell-based modelling context, to both highlight the crucial role of active cell death in cell competition and identify the factors that drive cell competition.
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Affiliation(s)
- Thomas F Pak
- Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK.
| | - Joe Pitt-Francis
- Department of Computer Science, University of Oxford, Wolfson Building, Parks Road, Oxford, OX1 3QD, UK
| | - Ruth E Baker
- Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK
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44
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Weinelt N, Wächtershäuser KN, Celik G, Jeiler B, Gollin I, Zein L, Smith S, Andrieux G, Das T, Roedig J, Feist L, Rotter B, Boerries M, Pampaloni F, van Wijk SJL. LUBAC-mediated M1 Ub regulates necroptosis by segregating the cellular distribution of active MLKL. Cell Death Dis 2024; 15:77. [PMID: 38245534 PMCID: PMC10799905 DOI: 10.1038/s41419-024-06447-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024]
Abstract
Plasma membrane accumulation of phosphorylated mixed lineage kinase domain-like (MLKL) is a hallmark of necroptosis, leading to membrane rupture and inflammatory cell death. Pro-death functions of MLKL are tightly controlled by several checkpoints, including phosphorylation. Endo- and exocytosis limit MLKL membrane accumulation and counteract necroptosis, but the exact mechanisms remain poorly understood. Here, we identify linear ubiquitin chain assembly complex (LUBAC)-mediated M1 poly-ubiquitination (poly-Ub) as novel checkpoint for necroptosis regulation downstream of activated MLKL in cells of human origin. Loss of LUBAC activity inhibits tumor necrosis factor α (TNFα)-mediated necroptosis, not by affecting necroptotic signaling, but by preventing membrane accumulation of activated MLKL. Finally, we confirm LUBAC-dependent activation of necroptosis in primary human pancreatic organoids. Our findings identify LUBAC as novel regulator of necroptosis which promotes MLKL membrane accumulation in human cells and pioneer primary human organoids to model necroptosis in near-physiological settings.
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Affiliation(s)
- Nadine Weinelt
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Kaja Nicole Wächtershäuser
- Physical Biology Group, Buchmann Institute for Molecular Life Sciences (BMLS), Biological Sciences (IZN), Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438, Frankfurt am Main, Germany
| | - Gulustan Celik
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Birte Jeiler
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Isabelle Gollin
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Laura Zein
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Sonja Smith
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Geoffroy Andrieux
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79110, Freiburg, Germany
| | - Tonmoy Das
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79110, Freiburg, Germany
| | - Jens Roedig
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany
| | - Leonard Feist
- GenXPro GmbH, Altenhoeferallee 3, 60438, Frankfurt am Main, Germany
| | - Björn Rotter
- GenXPro GmbH, Altenhoeferallee 3, 60438, Frankfurt am Main, Germany
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79110, Freiburg, Germany
- German Cancer Consortium (DKTK) partner site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Francesco Pampaloni
- Physical Biology Group, Buchmann Institute for Molecular Life Sciences (BMLS), Biological Sciences (IZN), Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438, Frankfurt am Main, Germany
| | - Sjoerd J L van Wijk
- Institute for Experimental Paediatric Haematology and Oncology (EPHO), Goethe University Frankfurt, Komturstrasse 3a, 60528, Frankfurt am Main, Germany.
- German Cancer Consortium (DKTK) partner site Frankfurt/Mainz and German Cancer Research Center (DKFZ), Heidelberg, Germany.
- University Cancer Centre Frankfurt (UCT), University Hospital Frankfurt, Goethe-University Frankfurt, Frankfurt, Germany.
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45
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Song Y, Wang L, Xu M, Lu X, Wang Y, Zhang L. Molecular and functional characterization of porcine poly C binding protein 1 (PCBP1). BMC Vet Res 2024; 20:25. [PMID: 38218813 PMCID: PMC10787444 DOI: 10.1186/s12917-023-03861-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 12/20/2023] [Indexed: 01/15/2024] Open
Abstract
BACKGROUND Poly C Binding Protein 1 (PCBP1) belongs to the heterogeneous nuclear ribonucleoprotein family. It is a multifunctional protein that participates in several functional circuits and plays a variety of roles in cellular processes. Although PCBP1 has been identified in several mammals, its function in porcine was unclear. RESULTS In this study, we cloned the gene of porcine PCBP1 and analyzed its evolutionary relationships among different species. We found porcine PCBP1 protein sequence was similar to that of other animals. The subcellular localization of PCBP1 in porcine kidney cells 15 (PK-15) cells was analyzed by immunofluorescence assay (IFA) and revealed that PCBP1 was mainly localized to the nucleus. Reverse transcription-quantitative PCR (RT-qPCR) was used to compare PCBP1 mRNA levels in different tissues of 30-day-old pigs. Results indicated that PCBP1 was expressed in various tissues and was most abundant in the liver. Finally, the effects of PCBP1 on cell cycle and apoptosis were investigated following its overexpression or knockdown in PK-15 cells. The findings demonstrated that PCBP1 knockdown arrested cell cycle in G0/G1 phase, and enhanced cell apoptosis. CONCLUSIONS Porcine PCBP1 is a highly conserved protein, plays an important role in determining cell fate, and its functions need further study.
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Affiliation(s)
- Yue Song
- Molecule Biology Laboratory of Zhengzhou Normal University, Zhengzhou Henan, 450044, China
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, 450046, China
| | - Linqing Wang
- Molecule Biology Laboratory of Zhengzhou Normal University, Zhengzhou Henan, 450044, China.
| | - Menglong Xu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, 450046, China
| | - Xiuxiang Lu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, 450046, China
| | - Yumin Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, 450046, China
| | - Limeng Zhang
- Molecule Biology Laboratory of Zhengzhou Normal University, Zhengzhou Henan, 450044, China
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46
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Yamamoto Y, Hishikawa D, Ono F. Trpv4-mediated apoptosis of Leydig cells induced by high temperature regulates sperm development and motility in zebrafish. Commun Biol 2024; 7:96. [PMID: 38218950 PMCID: PMC10787748 DOI: 10.1038/s42003-023-05740-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/22/2023] [Indexed: 01/15/2024] Open
Abstract
Exposure of testes to high-temperature environment results in defective spermatogenesis. Zebrafish exposed to high temperature exhibited apoptosis not only in germ cells but also in Leydig cells, as expected from studies using mice or salmon. However, the role of testicular somatic cells in spermatogenesis defects remains unclear. We found that in Leydig cells the Trpv4 gene encoding the temperature sensitive ion channel was specifically upregulated in high temperature. High temperature also reduced hormone synthesis in Leydig cells and led to a prompt downregulation of sperm motility. In the Trpv4 null mutant, neither Leydig cell-specific apoptosis nor decreased sperm motility was observed under high temperature. These results indicate that Leydig cell specific-apoptosis is induced via Trpv4 by high temperature. Notably this Trpv4-dependent mechanism was specific to Leydig cells and did not operate in germ cells. Because sperm exposed to high temperature exhibited compromised genome stability, we propose that temperature sensing leading to apoptosis in Leydig cells evolved to actively suppress generation of offspring with unstable genome.
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Affiliation(s)
- Yasuhiro Yamamoto
- Department of Physiology, Osaka Medical and Pharmaceutical University 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
| | - Daisuke Hishikawa
- Department of Biochemistry and Molecular Biology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, 113-8602, Japan
| | - Fumihito Ono
- Department of Physiology, Osaka Medical and Pharmaceutical University 2-7, Daigaku-machi, Takatsuki, Osaka, 569-8686, Japan.
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47
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Wang M, Yu F, Zhang Y, Li P. Programmed cell death in tumor immunity: mechanistic insights and clinical implications. Front Immunol 2024; 14:1309635. [PMID: 38283351 PMCID: PMC10811021 DOI: 10.3389/fimmu.2023.1309635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024] Open
Abstract
Programmed cell death (PCD) is an evolutionarily conserved mechanism of cell suicide that is controlled by various signaling pathways. PCD plays an important role in a multitude of biological processes, such as cell turnover, development, tissue homeostasis and immunity. Some forms of PCD, including apoptosis, autophagy-dependent cell death, pyroptosis, ferroptosis and necroptosis, contribute to carcinogenesis and cancer development, and thus have attracted increasing attention in the field of oncology. Recently, increasing research-based evidence has demonstrated that PCD acts as a critical modulator of tumor immunity. PCD can affect the function of innate and adaptive immune cells, which leads to distinct immunological consequences, such as the priming of tumor-specific T cells, immunosuppression and immune evasion. Targeting PCD alone or in combination with conventional immunotherapy may provide new options to enhance the clinical efficacy of anticancer therapeutics. In this review, we introduce the characteristics and mechanisms of ubiquitous PCD pathways (e.g., apoptosis, autophagy-dependent cell death, pyroptosis and ferroptosis) and explore the complex interaction between these cell death mechanisms and tumor immunity based on currently available evidence. We also discuss the therapeutic potential of PCD-based approaches by outlining clinical trials targeting PCD in cancer treatment. Elucidating the immune-related effects of PCD on cancer pathogenesis will likely contribute to an improved understanding of oncoimmunology and allow PCD to be exploited for cancer treatment.
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Affiliation(s)
- Man Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | | | | | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
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48
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Soni C, Tyagi A, Wang X, Mathur R. Editorial: The molecular basis of programmed cell death and neuroinflammation in neurodegenerative diseases. Front Immunol 2024; 14:1359136. [PMID: 38283364 PMCID: PMC10812108 DOI: 10.3389/fimmu.2023.1359136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024] Open
Affiliation(s)
- Chetna Soni
- Department of Pathology, Grossman School of Medicine, New York University, New York, NY, United States
| | - Antariksh Tyagi
- Yale Center for Genome Analysis, Yale School of Medicine, West Haven, CT, United States
| | - Xusheng Wang
- Department of Genetics, Genomics & Informatics, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Ramkumar Mathur
- Department of Geriatrics, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND, United States
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49
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Murray S. Response to "Letter to the Editor: SMAC mimetics inhibit human T cell proliferation and fail to augment type 1 cytokine responses". Cell Immunol 2024; 395-396:104785. [PMID: 38016882 DOI: 10.1016/j.cellimm.2023.104785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 09/27/2023] [Indexed: 11/30/2023]
Affiliation(s)
- Susan Murray
- Department of Biology, University of Portland, Portland, OR, United States; Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
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50
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Li JY, Sun XA, Wang X, Yang NH, Xie HY, Guo HJ, Lu L, Xie X, Zhou L, Liu J, Zhang W, Lu LM. PGAM5 exacerbates acute renal injury by initiating mitochondria-dependent apoptosis by facilitating mitochondrial cytochrome c release. Acta Pharmacol Sin 2024; 45:125-136. [PMID: 37684381 PMCID: PMC10770374 DOI: 10.1038/s41401-023-01151-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 08/03/2023] [Indexed: 09/10/2023] Open
Abstract
Acute kidney injury (AKI) is a worldwide public health problem characterized by the massive loss of tubular cells. However, the precise mechanism for initiating tubular cell death has not been fully elucidated. Here, we reported that phosphoglycerate mutase 5 (PGAM5) was upregulated in renal tubular epithelial cells during ischaemia/reperfusion or cisplatin-induced AKI in mice. PGAM5 knockout significantly alleviated the activation of the mitochondria-dependent apoptosis pathway and tubular apoptosis. Apoptosis inhibitors alleviated the activation of the mitochondria-dependent apoptosis pathway. Mechanistically, as a protein phosphatase, PGAM5 could dephosphorylate Bax and facilitate Bax translocation to the mitochondrial membrane. The translocation of Bax to mitochondria increased membrane permeability, decreased mitochondrial membrane potential and facilitated the release of mitochondrial cytochrome c (Cyt c) into the cytoplasm. Knockdown of Bax attenuated PGAM5 overexpression-induced Cyt c release and tubular cell apoptosis. Our results demonstrated that the increase in PGAM5-mediated Bax dephosphorylation and mitochondrial translocation was implicated in the development of AKI by initiating mitochondrial Cyt c release and activating the mitochondria-dependent apoptosis pathway. Targeting this axis might be beneficial for alleviating AKI.
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Affiliation(s)
- Jing-Yao Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
- Division of Nephrology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xi-Ang Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Xin Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Ning-Hao Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Hong-Yan Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Heng-Jiang Guo
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Li Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Dali University, Dali, Yunnan, 671013, China
| | - Xin Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Li Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Jun Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Wei Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
| | - Li-Min Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China.
- National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, 200040, China.
- Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Children's Hospital of Fudan University, Shanghai, 201102, China.
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