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Sumida K, Doi T, Obayashi K, Chiba Y, Nagasaka S, Ogino N, Miyagawa K, Baba R, Morimoto H, Hara H, Terabayashi T, Ishizaki T, Harada M, Endo M. Caspase-4 has a role in cell division in epithelial cells through actin depolymerization. Biochem Biophys Res Commun 2024; 695:149394. [PMID: 38157629 DOI: 10.1016/j.bbrc.2023.149394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
In addition to its role in pyroptosis and inflammatory cytokine maturation, caspase-4 (CASP4) also contributes to the fusion of phagosomes with lysosomes and cell migration. However, its role in cell division remains elusive. In this study, we demonstrate that CASP4 is indispensable for proper cell division in epithelial cells. Knockout of CASP4 (CASP4 KO) in HepG2 cells led to delayed cell proliferation, increased cell size, and increased multinucleation. In mitosis, CASP4 KO cells showed multipolar spindles, asymmetric spindle positioning, and chromosome segregation errors, ultimately increasing DNA content and chromosome number. We also found that phalloidin, a marker of filamentous actin, increased in CASP4 KO cells owing to suppressed actin depolymerization. Moreover, the levels of actin polymerization-related proteins, including Rho-associated protein kinase1 (ROCK1), LIM kinase1 (LIMK1), and phosphorylated cofilin, significantly increased in CASP4 KO cells. These results suggest that CASP4 contributes to proper cell division through actin depolymerization.
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Affiliation(s)
- Kazuhiro Sumida
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Tomomitsu Doi
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kunie Obayashi
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yosuke Chiba
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Shohei Nagasaka
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Noriyoshi Ogino
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Koichiro Miyagawa
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Ryoko Baba
- Department of Anatomy, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hiroyuki Morimoto
- Department of Anatomy, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hideki Hara
- Department of Infectious Diseases, Division of Microbiology and Immunochemistry, Asahikawa Medical University, Asahikawa, Japan
| | - Takeshi Terabayashi
- Department of Pharmacology, Faculty of Medicine, Oita University, Yufu, Japan
| | - Toshimasa Ishizaki
- Department of Pharmacology, Faculty of Medicine, Oita University, Yufu, Japan
| | - Masaru Harada
- Third Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Motoyoshi Endo
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan.
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Matsukawa T, Doi T, Obayashi K, Sumida K, Fujimoto N, Endo M. ANGPTL8 links inflammation and poor differentiation, which are characteristics of malignant renal cell carcinoma. Cancer Sci 2022; 114:1410-1422. [PMID: 36529524 PMCID: PMC10067409 DOI: 10.1111/cas.15700] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Inflammation is observed in many tumors, which affects metastasis, infiltration, and immune escape and causes poor differentiation of the cancer cells. However, the molecular basis underlying the relationship between inflammation and poor differentiation in tumors has not been identified. In this study, we demonstrate that angiopoietin-like protein-8 (ANGPTL8), which is induced by stress stimuli such as inflammation, is involved in the maintenance of the undifferentiated state of clear cell renal cell carcinoma (ccRCC) cells. ANGPTL8 is also involved in the production of chemokines that attract immune suppressor cells to the tumor microenvironment. ANGPTL8 sustains the continuous production of chemokines by activating the NF-κB signaling pathway and maintains the undifferentiated state of ccRCC cells. Finally, ANGPTL8 is induced by STAT3 signaling, which is activated by immune cells in the tumor microenvironment. These results support a role for ANGPTL8 in determining the properties of ccRCC by hampering tumor cell differentiation and establishing the tumor microenvironment.
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Affiliation(s)
- Takuo Matsukawa
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan.,Department of Urology, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Tomomitsu Doi
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kunie Obayashi
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kazuhiro Sumida
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Naohiro Fujimoto
- Department of Urology, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Motoyoshi Endo
- Department of Molecular Biology, University of Occupational and Environmental Health, Kitakyushu, Japan
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