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Yin H, Liu Y, Dong Q, Wang H, Yan Y, Wang X, Wan X, Yuan G, Pan Y. The mechanism of extracellular CypB promotes glioblastoma adaptation to glutamine deprivation microenvironment. Cancer Lett 2024:216862. [PMID: 38582396 DOI: 10.1016/j.canlet.2024.216862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/21/2024] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Glioblastoma, previously known as glioblastoma multiform (GBM), is a type of glioma with a high degree of malignancy and rapid growth rate. It is highly dependent on glutamine (Gln) metabolism during proliferation and lags in neoangiogenesis, leading to extensive Gln depletion in the core region of GBM. Gln-derived glutamate is used to synthesize the antioxidant Glutathione (GSH). We demonstrated that GSH levels are also reduced in Gln deficiency, leading to increased reactive oxygen species (ROS) levels. The ROS production induces endoplasmic reticulum (ER) stress, and the proteins in the ER are secreted into the extracellular medium. We collected GBM cell supernatants cultured with or without Gln medium; the core and peripheral regions of human GBM tumor tissues. Proteomic analysis was used to screen out the target-secreted protein CypB. We demonstrated that the extracellular CypB expression is associated with Gln deprivation. Then, we verified that GBM can promote the glycolytic pathway by activating HIF-1α to upregulate the expression of GLUT1 and LDHA expressions. Meanwhile, the DRP1 was activated, increasing mitochondrial fission, thus inhibiting mitochondrial function. To explore the specific mechanism of its regulation, we constructed a si-CD147 knockout model and added human recombinant CypB protein to verify that extracellular CypB influenced the expression of downstream p-AKT through its cell membrane receptor CD147 binding. Moreover, we confirmed that p-AKT could upregulate HIF-1α and DRP1. Finally, we observed that extracellular CypB can bind to the CD147 receptor, activate p-AKT, and upregulate HIF-1α and DRP1 in order to promote glycolysis while inhibiting mitochondrial function to adapt to the Gln-deprived microenvironment.
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Affiliation(s)
- Hang Yin
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Yang Liu
- Laboratory of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China; Neurological Diseases Clinical Medical Research Center of Gansu Province, Lanzhou, China
| | - Qiang Dong
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Hongyu Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Yunji Yan
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Xiaoqing Wang
- Laboratory of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China; Neurological Diseases Clinical Medical Research Center of Gansu Province, Lanzhou, China
| | - Xiaoyu Wan
- Division of Cellular and Molecular Research, National Cancer Centre Singapore, 11 Hospital Crescen, Singapore, Singapore; School of Basic Medicine, Henan University, Kaifeng, China
| | - Guoqiang Yuan
- Laboratory of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China; Neurological Diseases Clinical Medical Research Center of Gansu Province, Lanzhou, China.
| | - Yawen Pan
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China.
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Kan H, Zhao M, Wang W, Sun B. Understanding Propofol's Protective Mechanism in Tubular Epithelial Cells: Mitigating Pyroptosis via the miR-143-3p/ATPase Na + /K + Transporting Subunit Alpha 2 Pathway in Renal Ischemia-Reperfusion. Mol Biotechnol 2024:10.1007/s12033-024-01116-7. [PMID: 38498283 DOI: 10.1007/s12033-024-01116-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 02/02/2024] [Indexed: 03/20/2024]
Abstract
Propofol (Pro), a prevalent intravenous anesthetic, has recently been recognized for its potential in mitigating ischemia-reperfusion (I/R) injuries. Despite a plethora of evidence suggesting the beneficial effects of low-dose Pro in renal I/R injury (RI/R), its role in modulating pyroptosis in renal tubular epithelial cells consequent to RI/R has not been thoroughly elucidated. In our investigation, we explored the therapeutic potential of Pro against pyroptosis in renal tubular epithelial cells under the duress of RI/R, employing both in vivo and in vitro models, while deciphering the intricate molecular pathways involved. Our results demonstrate an elevation in the expression of miR-143-3p, contrasted by a diminution in ATPase Na + /K + Transporting Subunit Alpha 2 (ATP1A2) under RI/R conditions. Pro effectively mitigates apoptosis in renal tubular epithelial cells induced by RI/R, principally characterized by the inhibition of pro-inflammatory cytokines interleukin (IL-)-1β and IL-18, enhancement of cellular viability, reduction in the ratio of pyroptotic cells, and suppression of nucleotide-binding domain and leucine-rich repeat-related family, pyrin domain containing 3 inflammasome activation along with the expression of cleaved caspase-1, and gasdermin D. Both knockdown and overexpression studies of miR-143-3p revealed its pivotal role in modulating RI/R-induced tubular cell pyroptosis. Notably, Pro's capacity to inhibit pyroptosis in renal tubular epithelial cells was found to be reversible following ATP1A2 knockdown. Furthermore, our study unveils miR-143-3p as a targeted regulator of ATP1A2 expression. From a mechanistic standpoint, Pro's therapeutic efficacy is attributed to its regulatory influence on miR-143-3p and ATP1A2 expression levels. In conclusion, our findings pioneer the understanding that Pro can significantly ameliorate pyroptosis in renal tubular epithelial cells in the context of RI/R, predominantly through the modulation of the miR-143-3p/ATP1A2 axis. This novel insight furnishes robust empirical support for the development of targeted therapeutics and clinical strategies in addressing RI/R.
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Affiliation(s)
- Hongjun Kan
- Department of Anesthesiology, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan City, 250022, Shandong Province, China
| | - Miaomiao Zhao
- Department of Paediatrics, Pediatrics, Zaozhuang Traditional Chinese Medicine Hospital, Zaozhuang City, 277100, Shandong Province, China
| | - Wei Wang
- Anesthesia and Perioperative Medicine, Zaozhuang Municipal Hospital, Zaozhuang City, 277000, Shandong Province, China
| | - Baozhong Sun
- Department of Anesthesiology, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan City, 250022, Shandong Province, China.
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Guo H, Zhuang K, Ding N, Hua R, Tang H, Wu Y, Yuan Z, Li T, He S. High-fat diet induced cyclophilin B enhances STAT3/lncRNA-PVT1 feedforward loop and promotes growth and metastasis in colorectal cancer. Cell Death Dis 2022; 13:883. [PMID: 36266267 PMCID: PMC9584950 DOI: 10.1038/s41419-022-05328-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 01/23/2023]
Abstract
High-fat diet (HFD) has been implicated to promote colorectal cancer (CRC). Recently, oncogene Cyclophilin B (CypB) is reported to be induced by cholesterol. However, the role of CypB in CRC carcinogenesis and metastasis associated with HFD remains unknown. In the present study, we showed that HFD-induced CypB enhances proliferation and metastasis through an inflammation-driven circuit, including Signal Transducer and Activator of Transcription 3 (STAT3)-triggered transcription of lncRNA-PVT1, and its binding with CypB that promotes activation of STAT3. CypB was found to be upregulated in CRC, which was correlated with elevated body mass index and poor prognosis. HFD induced CypB expression and proinflammatory cytokines in colon of mice. Besides, CypB restoration facilitated growth, invasion and metastasis in CRC cells both in vitro and in vivo. Moreover, RIP sequencing data identified lncRNA-PVT1 as a functional binding partner of CypB. Mechanistically, PVT1 increased the phosphorylation and nuclear translocation of STAT3 in response to IL-6, through directly interaction with CypB, which impedes the binding of Suppressors Of Cytokine Signalling 3 (SOCS3) to STAT3. Furthermore, STAT3 in turn activated PVT1 transcription through binding to its promoter, forming a regulatory loop. Finally, this CypB/STAT3/PVT1 axis was verified in TCGA datasets and CRC tissue arrays. Our data revealed that CypB linked HFD and CRC malignancy by enhancing the CypB/STAT3/PVT1 feedforward axis and activation of STAT3.
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Affiliation(s)
- Hanqing Guo
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China ,grid.43169.390000 0001 0599 1243Department of Gastroenterology, Xi’an Central Hospital, College of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Kun Zhuang
- grid.43169.390000 0001 0599 1243Department of Gastroenterology, Xi’an Central Hospital, College of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Ning Ding
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Rui Hua
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Hailing Tang
- grid.43169.390000 0001 0599 1243Department of Gastroenterology, Xi’an Central Hospital, College of Medicine, Xi’an Jiaotong University, Xi’an, China
| | - Yue Wu
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China ,grid.452438.c0000 0004 1760 8119Department of Cardiovascular Diseases, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zuyi Yuan
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China ,grid.452438.c0000 0004 1760 8119Department of Cardiovascular Diseases, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ting Li
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China ,grid.452438.c0000 0004 1760 8119Department of Cardiovascular Diseases, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Shuixiang He
- grid.43169.390000 0001 0599 1243First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
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