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Wang LH, Wei S, Yuan Y, Zhong MJ, Wang J, Yan ZX, Zhou K, Luo T, Liang L, Bian XW. KPT330 promotes the sensitivity of glioblastoma to olaparib by retaining SQSTM1 in the nucleus and disrupting lysosomal function. Autophagy 2024; 20:295-310. [PMID: 37712615 PMCID: PMC10813631 DOI: 10.1080/15548627.2023.2252301] [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: 01/04/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023] Open
Abstract
ABBREVIATIONS AO: acridine orange; ATM: ATM serine/threonine kinase; CHEK1: checkpoint kinase 1; CHEK2: checkpoint kinase 2; CI: combination index; DMSO: dimethyl sulfoxide; DSBs: double-strand breaks; GBM: glioblastoma; HR: homologous recombination; H2AX: H2A.X variant histone; IHC: immunohistochemistry; LAPTM4B: lysosomal protein transmembrane 4 beta; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; PARP: poly(ADP-ribose) polymerase; RAD51: RAD51 recombinase; SQSTM1: sequestosome 1; SSBs: single-strand breaks; RNF168: ring finger protein 168; XPO1: exportin 1.
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Affiliation(s)
- Li-Hong Wang
- Department of Pathology, School of Basic Medical Science, Southern Medical University, Guangzhou, Guangdong, China
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Sen Wei
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Ye Yuan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Ming-Jun Zhong
- Institute of Rare Diseases, West China Hospital of Sichuan University, Chengdu610000, China
| | - Jiao Wang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Ze-Xuan Yan
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Kai Zhou
- Department of General Surgery and Center of Minimal Invasive Gastrointestinal Surgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Tao Luo
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
| | - Li Liang
- Department of Pathology, School of Basic Medical Science, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing400038, China
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Wu M, Gui H, Feng Z, Xu H, Li G, Li M, Chen T, Wu Y, Huang J, Bai Z, Li Y, Pan J, Wang J, Zhou H. KPT-330, a potent and selective CRM1 inhibitor, exhibits anti-inflammation effects and protection against sepsis. Biochem Biophys Res Commun 2018; 503:1773-1779. [PMID: 30064906 DOI: 10.1016/j.bbrc.2018.07.112] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 02/07/2023]
Abstract
Sepsis, a systemic inflammatory response caused by infection or injury, is still one of the most important causes of death in clinical patients. The ongoing search for the pathogenesis of sepsis and novel therapeutic methods are highly urgent. In this study, we hypothesized that KPT330, a potent and specific small molecule inhibitor of CRM1, could reduce inflammation and attenuate the severity of sepsis. In LPS-induced sepsis model in vivo, administration of KPT330 increased survival rate and ameliorated LPS-induced lung injury, with suppressed levels of TNF-α, IL-6 and HMGB1 in the circulation and decreased macrophage and PMN subpopulations in peritoneal cavity. In vitro investigations showed that KPT330 dose-dependently inhibited LPS-triggered proinflammatory cytokines production including TNF-α, IL-6 and HMGB1 in macrophages. Furthermore, KPT330 treatment significantly suppressed TNF-α and IL-6 mRNA expression and inhibited HMGB1 necleocytoplasmic translocation by inhibiting CRM1 distribution. Moreover, the mechanism analysis demonstrated that KPT330 exerted anti-inflammation effects by inhibiting the production of pro-inflammatory cytokines through suppressing activation of NF-κB and p38 signaling. Thus, pharmacologic stimulation of KPT330 may present a promising therapeutic strategy for sepsis.
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Affiliation(s)
- Ming Wu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Huan Gui
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Zongtai Feng
- Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Hua Xu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Gang Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Mei Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Ting Chen
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Yi Wu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Jie Huang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Zhenjiang Bai
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Yanhong Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Jian Pan
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Jian Wang
- Department of Pediatric Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China.
| | - Huiting Zhou
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, 215025, China.
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