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Guan M, Zhao H, Zhang Q, Li L, Wang X, Tang B. A novel anoikis-related signature predicts prognosis risk and treatment responsiveness in diffuse large B-cell lymphoma. Expert Rev Mol Diagn 2024; 24:439-457. [PMID: 38709202 DOI: 10.1080/14737159.2024.2351465] [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: 06/02/2023] [Accepted: 03/05/2024] [Indexed: 05/07/2024]
Abstract
BACKGROUND Although anoikis plays a role in cancer metastasis and aggressiveness, it has rarely been reported in diffuse large B cell lymphoma (DLBCL). METHODS We obtained RNA sequencing data and matched clinical data from the GEO database. An anoikis-related genes (ARGs)-based risk signature was developed in GSE10846 training cohort and validated in three other cohorts. Additionally, we predicted half-maximal inhibitory concentration (IC50) of drugs based on bioinformatics method and obtained the actual IC50 to some chemotherapy drugs via cytotoxicity assay. RESULTS The high-risk group, as determined by our signature, was associated with worse prognosis and an immunosuppressive environment in DLBCL. Meanwhile, the nomogram based on eight variables had more accurate ability in forecasting the prognosis than the international prognostic index in DLBCL. The prediction of IC50 indicated that DLBCL patients in the high-risk group were more sensitive to doxorubicin, IPA-3, lenalidomide, gemcitabine, and CEP.701, while patients in the low-risk group were sensitive to cisplatin and dasatinib. Consistent with the prediction, cytotoxicity assay suggested the higher sensitivity to doxorubicin and gemcitabine and the lower sensitivity to dasatinib in the high-risk group in DLBCL. CONCLUSION The ARG-based signature may provide a promising direction for prognosis prediction and treatment optimization for DLBCL patients.
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MESH Headings
- Humans
- Lymphoma, Large B-Cell, Diffuse/drug therapy
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/mortality
- Lymphoma, Large B-Cell, Diffuse/diagnosis
- Prognosis
- Anoikis/drug effects
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic
- Biomarkers, Tumor/genetics
- Transcriptome
- Antineoplastic Agents/therapeutic use
- Antineoplastic Agents/pharmacology
- Nomograms
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Affiliation(s)
- Mingze Guan
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Hua Zhao
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Qi Zhang
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Li Li
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Xiaobo Wang
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Bo Tang
- Department of Hematology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
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Chen M, Pan L, Chen D, Wu Y, Ye J, Li K, Zhang N, Xu J. PAK1 Promotes Inflammation Induced by Sepsis through the Snail/CXCL2 Signaling Pathway. ACS Infect Dis 2024; 10:1370-1378. [PMID: 38503263 DOI: 10.1021/acsinfecdis.4c00052] [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] [Indexed: 03/21/2024]
Abstract
Sepsis is a severe syndrome characterized by organ dysfunction, resulting from a systemic imbalance in response to infection. PAK1 plays a critical role in various diseases. The present study aimed to explore and delineate the mechanism of PAK1 in inflammation induced by sepsis. Bioinformatics analysis was performed to assess PAK1, snail, and CXCL2 expression in the whole blood of septic patients and the pathways enriched with PAK1. To simulate the sepsis model, THP-1 cells were stimulated with lipopolysaccharide. Gene expression was evaluated using qRT-PCR, while cell viability was assessed using CCK-8 assay. Cell apoptosis was tested with flow cytometry. Expression of inflammatory factors in cells following different treatments was analyzed using the enzyme linked immunosorbent assay (ELISA). Dual-luciferase and chromatin immunoprecipitation assays were conducted to verify the binding relationship between PAK1 and the snail. Mouse models of cecal ligation and puncture were established, and hematoxylin and eosin staining and ELISA were employed to detect the infiltration levels of inflammatory cells and the expression of related protective factors in lung, liver, and kidney tissues. The results demonstrated upregulation of PAK1, snail, and CXCL2 in the whole blood of septic patients, with PAK1 being enriched in the chemokine-related pathway. Knockdown of PAK1 significantly promoted the apoptosis of LPS-stimulated THP-1 cells and inhibited the expression of inflammatory factors. PAK1 upregulated the expression of the snail, which in turn promoted the expression of CXCL2. Thus, PAK1 mediated the sepsis-induced inflammatory response through the snail/CXCL2 pathway. In conclusion, PAK1 played a role in promoting inflammation induced by sepsis through the snail/CXCL2 axis, thereby providing a potential therapeutic target for the management of sepsis.
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Affiliation(s)
- Miaomiao Chen
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Liuhua Pan
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Deyuan Chen
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Yueming Wu
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Jianping Ye
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Ke Li
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Ning Zhang
- Department of Emergency Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Junlong Xu
- Department of Critical Care Medicine, The Six Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
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Chen Y, Huang M, Lu J, Zhang Q, Wu J, Peng S, Chen S, Zhang Y, Cheng L, Lin T, Chen X, Huang J. Establishment of a prognostic model to predict chemotherapy response and identification of RAC3 as a chemotherapeutic target in bladder cancer. ENVIRONMENTAL TOXICOLOGY 2024; 39:509-528. [PMID: 37310098 DOI: 10.1002/tox.23860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/17/2023] [Accepted: 05/28/2023] [Indexed: 06/14/2023]
Abstract
Cisplatin-based chemotherapy is considered the primary treatment option for patients with advanced bladder cancer (BCa). However, the objective response rate to chemotherapy is often unsatisfactory, leading to a poor 5-year survival rate. Furthermore, current strategies for evaluating chemotherapy response and prognosis are limited and inefficient. In this study, we aimed to address these challenges by establishing a chemotherapy response type gene (CRTG) signature consisting of 9 genes and verified the prognostic value of this signature using TCGA and GEO BCa cohorts. The risk scores based on the CRTG signature were found to be associated with advanced clinicopathological status and demonstrated favorable predictive power for chemotherapy response in the TCGA cohort. Meanwhile, tumors with high risk scores exhibited a tendency toward a "cold tumor" phenotype. These tumors showed a low abundance of T cells, CD8+ T cells and cytotoxic lymphocytes, along with a high abundance of cancer-associated fibroblasts. Moreover, they displayed higher mRNA levels of these immune checkpoints: CD200, CD276, CD44, NRP1, PDCD1LG2 (PD-L2), and TNFSF9. Furthermore, we developed a nomogram that integrated the CRTG signature with clinicopathologic risk factors. This nomogram proved to be a more effective tool for predicting the prognosis of BCa patients. Additionally, we identified Rac family small GTPase 3 (RAC3) as a biomarker in our model. RAC3 was found to be overexpressed in chemoresistant BCa tissues and enhance the chemotherapeutic resistance of BCa cells in vitro and in vivo by regulating the PAK1-ERK1/2 pathway. In conclusion, our study presents a novel CRTG model for predicting chemotherapy response and prognosis in BCa. We also highlight the potential of combining chemotherapy with immunotherapy as a promising strategy for chemoresistant BCa and that RAC3 might be a latent target for therapeutic intervention.
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Affiliation(s)
- Yuelong Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, PR China
| | - Ming Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Junlin Lu
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Qiang Zhang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Jilin Wu
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Shengmeng Peng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Siting Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Yangjie Zhang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Liang Cheng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Tianxin Lin
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, PR China
| | - Xu Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, PR China
| | - Jian Huang
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, PR China
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Xie C, Zhou H, Qin D, Zheng H, Tang Y, Li W, Zhou J, Liu L, Yu X, Duan H, Zhou Y, Li Z, Fang Z, Luo Y, Carter BZ, Xu B, Zha J. Bcl-2 inhibition combined with PPARα activation synergistically targets leukemic stem cell-like cells in acute myeloid leukemia. Cell Death Dis 2023; 14:573. [PMID: 37644011 PMCID: PMC10465498 DOI: 10.1038/s41419-023-06075-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 08/05/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
Persistence of leukemic stem cells (LSCs) is one of the determining factors to acute myeloid leukemia (AML) treatment failure and responsible for the poor prognosis of the disease. Hence, novel therapeutic strategies that target LSCs are crucial for treatment success. We investigated if targeting Bcl-2 and peroxisome proliferator activated receptor α (PPARα), two distinct cell survival regulating mechanisms could eliminate LSCs. This study demonstrate that the Bcl-2 inhibitor venetoclax combined with the PPARα agonist chiglitazar resulted in synergistic killing of LSC-like cell lines and CD34+ primary AML cells while sparing their normal counterparts. Furthermore, the combination regimen significantly suppressed AML progression in patient-derived xenograft (PDX) mouse models. Mechanistically, chiglitazar-mediated PPARα activation inhibited the transcriptional activity of the PIK3AP1 gene promoter and down-regulated the PI3K/Akt signaling pathway and anti-apoptotic Bcl-2 proteins, leading to cell proliferation inhibition and apoptosis induction, which was synergized with venetoclax. These findings suggest that combinatorial Bcl-2 inhibition and PPARα activation selectively eliminates AML cells in vivo and vitro, representing an effective therapy for patients with relapsed and refractory AML.
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Grants
- The National Natural Science Foundation of China (No. U22A20290,82170180, 81800163, 82100204,81900164); Natural Science Foundation of Fujian Province, China (No.2023J06054,2020J05307,2020J011246, 2021J011359); The Xiamen Municipal Bureau of Science and Technology (3502Z20209003, 3502Z20209008).
- The National Natural Science Foundation of China (No. U22A20290,82170180, 81800163, 82100204,81900164); Natural Science Foundation of Fujian Province, China (No. 2020J05307,2020J011246, 2021J011359); The Xiamen Municipal Bureau of Science and Technology (3502Z20209003, 3502Z20209008).
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Affiliation(s)
- Chendi Xie
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Hui Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Dongmei Qin
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Huijian Zheng
- School of Clinical Medicine, Fujian Medical University, Fuzhou, Fujian, China
| | - Yuanfang Tang
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Wenjuan Li
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Jie Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Long Liu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Xinxin Yu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Hongpeng Duan
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Yong Zhou
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Zhifeng Li
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Zhihong Fang
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Yiming Luo
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China
| | - Bing Z Carter
- Section of Molecular Hematology and Therapy, Department of Leukemia, the University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
| | - Bing Xu
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China.
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China.
| | - Jie Zha
- Department of Hematology, the First Affiliated Hospital of Xiamen University and Institute of Hematology, School of Medicine, Xiamen University, Xiamen, China.
- Key Laboratory of Xiamen for Diagnosis and Treatment of Hematological Malignancy, Xiamen, China.
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Wang K, Qiu X, Zhang Z, Xu H, Tan Y, Su R, Gao F, Zhuo J, Li W, Lian Z, He H, Xu X. ATRA sensitized the response of hepatocellular carcinoma to Sorafenib by downregulation of p21-activated kinase 1. Cell Commun Signal 2023; 21:193. [PMID: 37537668 PMCID: PMC10399044 DOI: 10.1186/s12964-023-01194-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/10/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Sorafenib resistance greatly reduces the efficacy of treatments in advanced hepatocellular carcinoma (HCC) patients, but the underlying mechanisms are not thoroughly understood. All-trans retinoic acid (ATRA), an anti-leukaemia agent, has attracted considerable attention due to its role in sensitizing cells to other anticancer treatments. We aimed to investigate the combined effect of ATRA and Sorafenib on HCC and the underlying mechanisms. METHODS CCK-8, cell sphere formation, trans-well migration, and wound-healing assays were used to analyse the biological behaviours of HCC cells in vitro. Western blotting and qRT-PCR analysis were conducted to measure the expression of p21 activated kinase 1 (PAK1) and phospho-p21 activated kinase 1 (pPAK1). Xenograft models were established to confirm the synergistic effects of ATRA and Sorafenib in vivo. TUNEL assays and immunohistochemistry were utilized to determine apoptosis, proliferation, PAK1 and pPAK1 levels in tumour tissues. RESULTS We observed that PAK1 was overexpressed in HCC, and its expression was negatively correlated with the survival of patients. PAK1 promoted the proliferation, self-renewal and epithelial-mesenchymal transition of HCC cells. Correlation analysis indicated that the IC50 of Sorafenib was positively correlated with the level of pPAK1 in HCC cell lines. ATRA inhibited the progression of HCC and sensitized HCC response to Sorafenib by downregulation of PAK1, as shown by the calculated coefficient of drug interaction and the data obtained from xenograft models. CONCLUSIONS Our findings indicated that instead of treatment with Sorafenib alone, the combination of ATRA and Sorafenib provides a more effective treatment for HCC patients. Video Abstract.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, 310024, People's Republic of China
| | - Xun Qiu
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Zhensheng Zhang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Hanzhi Xu
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Yawen Tan
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Renyi Su
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Fengqiang Gao
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China
| | - Jianyong Zhuo
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
| | - Wangyao Li
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
| | - Zhengxing Lian
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, People's Republic of China
| | - Hong He
- Department of Surgery, University of Melbourne, Austin Health, Heidelberg, VIC, 3084, Australia.
| | - Xiao Xu
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, 310024, People's Republic of China.
- Zhejiang University School of Medicine, Hangzhou, 310058, People's Republic of China.
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Hangzhou, 310006, People's Republic of China.
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6
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Hyperactivation of p21-Activated Kinases in Human Cancer and Therapeutic Sensitivity. Biomedicines 2023; 11:biomedicines11020462. [PMID: 36830998 PMCID: PMC9953343 DOI: 10.3390/biomedicines11020462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/09/2023] Open
Abstract
Over the last three decades, p21-activated kinases (PAKs) have emerged as prominent intracellular nodular signaling molecules in cancer cells with a spectrum of cancer-promoting functions ranging from cell survival to anchorage-independent growth to cellular invasiveness. As PAK family members are widely overexpressed and/or hyperactivated in a variety of human tumors, over the years PAKs have also emerged as therapeutic targets, resulting in the development of clinically relevant PAK inhibitors. Over the last two decades, this has been a promising area of active investigation for several academic and pharmaceutical groups. Similar to other kinases, blocking the activity of one PAK family member leads to compensatory activity on the part of other family members. Because PAKs are also activated by stress-causing anticancer drugs, PAKs are components in the rewiring of survival pathways in the action of several therapeutic agents; in turn, they contribute to the development of therapeutic resistance. This, in turn, creates an opportunity to co-target the PAKs to achieve a superior anticancer cellular effect. Here we discuss the role of PAKs and their effector pathways in the modulation of cellular susceptibility to cancer therapeutic agents and therapeutic resistance.
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Li M, Zhou J, Zhang Z, Li J, Wang F, Ma L, Tian X, Mao Z, Yang Y. Exosomal miR-485-3p derived from pancreatic ductal epithelial cells inhibits pancreatic cancer metastasis through targeting PAK1. Chin Med J (Engl) 2022; 135:2326-2337. [PMID: 36535010 PMCID: PMC9771326 DOI: 10.1097/cm9.0000000000002154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Cell competition is an important feature in pancreatic cancer (PC) progression, but the underlying mechanism remains elusive. This study aims to explore the role of exosomes derived from normal pancreatic ductal epithelial cells involved in PC progression. METHODS PC cells and pancreatic stellate cells (PSCs) were treated with exosomes isolated from pancreatic ductal epithelial cells. Cell proliferation was assessed by CCK8 assays. Cell migration and invasion were assessed by Transwell assays. PC and matched adjacent non-tumor tissue specimens were obtained from 46 patients pathologically diagnosed with PC at Peking University First Hospital from 2013 to 2017. Tissue miR-485-3p and p21-activated kinase-1 (PAK1) expression was examined by real-time polymerase chain reaction (RT-PCR), and the relationship of the two was analyzed using Pearman's product-moment correlation. The clinical significance of miR-485-3p was analyzed using the Chi-square test, Wilcoxon rank-sum test, and Fisher exact probability, respectively. The binding of miR-485-3p to PAK1 5'-untranslated region (5'-UTR) was examined by luciferase assay. PC cells were xenografted into nude mice as a PC metastasis model. RESULTS Exosomes from pancreatic ductal epithelial cells suppressed PC cell migration and invasion as well as the secretion and migration of PSCs. MiR-485-3p was enriched in the exosomes of pancreatic ductal epithelial cells but deficient in those of PC cells and PSCs, in accordance with the lower level in PSCs and PC cells than that in pancreatic ductal cells. And the mature miR-485-3p could be delivered into these cells by the exosomes secreted by normal pancreatic duct cells, to inhibit PC cell migration and invasion. Clinical data analysis showed that miR-485-3p was significantly decreased in PC tissues (P < 0.05) and was negatively associated with lymphovascular invasion (P = 0.044). As a direct target of miR-485-3p, PAK1 was found to exert an inhibitory effect on PC cells, and there was a significantly negative correlation between the expression levels of miR-485-3p and PAK1 (r = -0.6525, P < 0.0001) in PC tissues. Moreover, miR-485-3p could suppress PC metastasis in vivo by targeting p21-activated kinase-1. CONCLUSIONS Exosomal miR-485-3p delivered by normal pancreatic ductal epithelial cells into PC cells inhibits PC metastasis by directly targeting PAK1. The restoration of miR-485-3p by exosomes or some other vehicle might be a novel approach for PC treatment.
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Affiliation(s)
- Mingzhe Li
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Jiaxin Zhou
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Zhengkui Zhang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Jisong Li
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
- Department of Gastrointestinal Surgery, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China
| | - Feng Wang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Ling Ma
- Department of Surgical Oncology, Peking University Ninth School of Clinical Medicine (Beijing Shijitan Hospital, Capital Medical University), Beijing 100038, China
| | - Xiaodong Tian
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Zebin Mao
- Department of Medical Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing 100191, China
| | - Yinmo Yang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
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p53 Signaling on Microenvironment and Its Contribution to Tissue Chemoresistance. MEMBRANES 2022; 12:membranes12020202. [PMID: 35207121 PMCID: PMC8877489 DOI: 10.3390/membranes12020202] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 02/06/2023]
Abstract
Chemoresistance persists as a significant, unresolved clinical challenge in many cancer types. The tumor microenvironment, in which cancer cells reside and interact with non-cancer cells and tissue structures, has a known role in promoting every aspect of tumor progression, including chemoresistance. However, the molecular determinants of microenvironment-driven chemoresistance are mainly unknown. In this review, we propose that the TP53 tumor suppressor, found mutant in over half of human cancers, is a crucial regulator of cancer cell-microenvironment crosstalk and a prime candidate for the investigation of microenvironment-specific modulators of chemoresistance. Wild-type p53 controls the secretion of factors that inhibit the tumor microenvironment, whereas altered secretion or mutant p53 interfere with p53 function to promote chemoresistance. We highlight resistance mechanisms promoted by mutant p53 and enforced by the microenvironment, such as extracellular matrix remodeling and adaptation to hypoxia. Alterations of wild-type p53 extracellular function may create a cascade of spatial amplification loops in the tumor tissue that can influence cellular behavior far from the initial oncogenic mutation. We discuss the concept of chemoresistance as a multicellular/tissue-level process rather than intrinsically cellular. Targeting p53-dependent crosstalk mechanisms between cancer cells and components of the tumor environment might disrupt the waves of chemoresistance that spread across the tumor tissue, increasing the efficacy of chemotherapeutic agents.
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