1
|
Zhang X, Wang BZ, Kim M, Nash TR, Liu B, Rao J, Lock R, Tamargo M, Soni RK, Belov J, Li E, Vunjak-Novakovic G, Fine B. STK25 inhibits PKA signaling by phosphorylating PRKAR1A. Cell Rep 2022; 40:111203. [PMID: 35977512 PMCID: PMC9446420 DOI: 10.1016/j.celrep.2022.111203] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 06/10/2022] [Accepted: 07/21/2022] [Indexed: 11/26/2022] Open
Abstract
In the heart, protein kinase A (PKA) is critical for activating calcium handling and sarcomeric proteins in response to beta-adrenergic stimulation leading to increased myocardial contractility and performance. The catalytic activity of PKA is tightly regulated by regulatory subunits that inhibit the catalytic subunit until released by cAMP binding. Phosphorylation of type II regulatory subunits promotes PKA activation; however, the role of phosphorylation in type I regulatory subunits remain uncertain. Here, we utilize human induced pluripotent stem cell cardiomyocytes (iPSC-CMs) to identify STK25 as a kinase of the type Iα regulatory subunit PRKAR1A. Phosphorylation of PRKAR1A leads to inhibition of PKA kinase activity and increased binding to the catalytic subunit in the presence of cAMP. Stk25 knockout in mice diminishes Prkar1a phosphorylation, increases Pka activity, and augments contractile response to beta-adrenergic stimulation. Together, these data support STK25 as a negative regulator of PKA signaling through phosphorylation of PRKAR1A.
Collapse
Affiliation(s)
- Xiaokan Zhang
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Bryan Z Wang
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Michael Kim
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Trevor R Nash
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Bohao Liu
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Jenny Rao
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Roberta Lock
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Manuel Tamargo
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Rajesh Kumar Soni
- Proteomics and Macromolecular Crystallography Shared Resource, Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, USA
| | - John Belov
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Eric Li
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Gordana Vunjak-Novakovic
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA; Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Barry Fine
- Department of Medicine, Division of Cardiology, Columbia University Irving Medical Center, New York, NY 10032, USA.
| |
Collapse
|
2
|
Lin H, Peng J, Zhu T, Xiong M, Zhang R, Lei L. Exosomal miR-4800-3p Aggravates the Progression of Hepatocellular Carcinoma via Regulating the Hippo Signaling Pathway by Targeting STK25. Front Oncol 2022; 12:759864. [PMID: 35756606 PMCID: PMC9214204 DOI: 10.3389/fonc.2022.759864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 05/17/2022] [Indexed: 12/12/2022] Open
Abstract
Background Emerging evidence has shown that exosome microRNAs (miRNAs) regulate the development of hepatocellular carcinoma (HCC). Here, the influences of miR-4800-3p on the progression of HCC were explored. Materials and Methods The expression of miR-4800-3p in the exosome derived by transforming growth factor beta 1 (TGF-β1)-treated HCC cells and the serum exosome isolated from HCC patients were identified by real-time PCR. The effects of TGF-β1 and the influences of Huh7-secreted exosomes and the effects of miR-4800-3p combined with/without STK25 on cell functions were explored using the EdU assay cloning experiments, wound healing assay, and Transwell assay. The corresponding molecular mechanisms were further detected using Western blot and real-time PCR assays. The combination of miR-4800-3p and STK25 was verified by the dual-luciferase and RNA pulldown assays. The influences of miR-4800-3p on the growth and epithelial–mesenchymal transformation (EMT) of implanted tumors were tested in vivo and further confirmed by Western blot. Results The miR-4800-3p expression was highly expressed in both exosomes derived by TGF-β1-treated HCC cells and the serum exosomes of HCC patients. In the cases of treatment with both Huh7-derived exosomes, the level of miR-4800-3p expression was highest, and the treatment of TGF-β1 could greatly promote the proliferation, stemness, migration, and invasion of HCC cells via upregulating the markers of stemness and EMT, including CD44, CD133, OCT4, N-cadherin, E-cadherin, and ZO-1. Similar results could be obtained when miR-4800-3p was overexpressed in HCC cells. Furthermore, downregulation of STK25 expression, a direct target gene of miR-4800-3p, could greatly rescue the malignant biological behaviors aggravated by overexpression of miR-4800-3p. This was achieved by suppressing the expression of CD44, CD133, OCT4, N-cadherin, and PCNA and activating the Hippo pathway while increasing E-cadherin and ZO-1. Similar results were also obtained in vivo that knockdown of miR-4800-3p expression suppressed tumor growth induced by Huh7-derived exosomes by mediating the EMT markers and the Hippo signaling pathway. Conclusion Exosomal miR-4800-3p could accelerate HCC development by regulating the Hippo signal by targeting STK25, which could be used as a new therapeutic target for HCC treatment.
Collapse
Affiliation(s)
- Haoming Lin
- Department of HBP Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jicai Peng
- Department of Emergency, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Taifeng Zhu
- Department of HBP Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Meihong Xiong
- Department of HBP Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rui Zhang
- Department of HBP Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liming Lei
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Laboratory of South China Structural Heart Disease, Guangzhou, China
| |
Collapse
|
3
|
Chen J, Gao P, Peng L, Liu T, Wu F, Xu K, Chen L, Tan F, Xing P, Wang Z, Di J, Jiang B, Su X. Downregulation of STK25 promotes autophagy via the Janus kinase 2/signal transducer and activator of transcription 3 pathway in colorectal cancer. Mol Carcinog 2022; 61:572-586. [PMID: 35349179 DOI: 10.1002/mc.23403] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/08/2022] [Accepted: 03/16/2022] [Indexed: 11/09/2022]
Abstract
Autophagy plays a crucial role in colorectal cancer (CRC) development. Our previous study suggested that serine/threonine protein kinase 25 (STK25) regulates aerobic glycolysis in CRC cells. Glycolysis modulates cellular autophagy during tumor growth; however, the role of STK25 in autophagy remains unclear. In this study, we found that STK25 expression was decreased in CRC tissues and CRC patients with high STK25 expression had a favorable prognosis. Functional assays suggested that STK25 inhibition promoted autophagy in CRC cells. Overexpression of STK25 exhibited the opposite effects. Moreover, the results of western blot demonstrated that silencing STK25 induced autophagy by activating the JAK2/STAT3 pathway. Therefore, STK25 could be a potential indicator for therapies targeting the JAK2/STAT3 pathway in CRC.
Collapse
Affiliation(s)
- Jiangbo Chen
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Pin Gao
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Lin Peng
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Tianqi Liu
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Fan Wu
- Inner Mongolia People's Hospital, Hohhot, China
| | - Kai Xu
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Lei Chen
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Fei Tan
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Pu Xing
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Zaozao Wang
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Jiabo Di
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Beihai Jiang
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Xiangqian Su
- Department of Gastrointestinal Surgery IV, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| |
Collapse
|
4
|
Zhang Y, Xu J, Qiu Z, Guan Y, Zhang X, Zhang X, Chai D, Chen C, Hu Q, Wang W. STK25 enhances hepatocellular carcinoma progression through the STRN/AMPK/ACC1 pathway. Cancer Cell Int 2022; 22:4. [PMID: 34986838 PMCID: PMC8734210 DOI: 10.1186/s12935-021-02421-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/19/2021] [Indexed: 12/11/2022] Open
Abstract
Background Serine/threonine protein kinase 25 (STK25) plays an important role in regulating glucose and insulin homeostasis and in ectopic lipid accumulation. It directly affects the progression and prognosis of nonalcoholic fatty liver disease (NAFLD). However, the effects of STK25 on lipid metabolism in hepatocellular carcinoma (HCC) remain unexplored. The aim of this study was to investigate the role of STK25 in HCC and to elucidate the underlying mechanisms. Methods Immunohistochemistry was used to measure the expression of STK25 in hepatic tissues of HCC patients, and public datasets were used as supplementary material for predicting the expression of STK25 and the prognosis of patients with HCC. The interaction between STK25 and striatin (STRN) was determined by the STRING database, immunohistochemistry and western blot analyses. The involved signaling pathway was detected by the KEGG database and western blot. Moreover, the biological behaviors of the HCC cells were detected by wound healing assays, Transwell invasion assays and oil red O staining. Finally, it was verified again by xenograft model. Results STK25 is highly expressed in HCC patients and is associated with poor prognosis. STK25 knockdown inhibited the HCC cell invasion and proliferation, promotes apoptosis. Consistently, STK25 knockdown inhibited tumor growth in xenograft mouse model. Besides, STK25 deficiency decreased lipid synthesis, energy reserve, epithelial-mesenchymal transition (EMT) by down-regulating lipid metabolism signaling pathway. STRN could reverse the change of lipid metabolism. Conclusions Our results demonstrated that STK25 interacted with STRN to regulates the energy reserve and EMT via lipid metabolism reprogramming. Accordingly, high expression of STK25 may be associated with HCC patients and poor prognosis, which implicates STK25 could be a potential target for lipid metabolism in cancer therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02421-w.
Collapse
Affiliation(s)
- Yichao Zhang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Junhui Xu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Zhendong Qiu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yongjun Guan
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - XiaoYi Zhang
- Intensive Care Unit, ZhongNan Hospital of Wuhan University, Wuhan, China
| | - Xin Zhang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Dongqi Chai
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Chen Chen
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Qinyong Hu
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Weixing Wang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
| |
Collapse
|
5
|
Matsuki T, Iio A, Ueda M, Tsuneura Y, Howell BW, Nakayama A. STK25 and MST3 Have Overlapping Roles to Regulate Rho GTPases during Cortical Development. J Neurosci 2021; 41:8887-903. [PMID: 34518307 DOI: 10.1523/JNEUROSCI.0523-21.2021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/13/2021] [Accepted: 09/06/2021] [Indexed: 11/21/2022] Open
Abstract
Precise control of neuronal migration is required for the laminar organization of the neocortex and critical for brain function. We previously reported that the acute disruption of the Stk25 gene (Stk25 conditional knock-out; cKO) during mouse embryogenesis causes anomalous neuronal migration in the neocortex, but paradoxically the Stk25 cKO did not have a cortical phenotype, suggesting some forms of compensation exist. In this study, we report that MST3, another member of the GCKIII subgroup of the Ste20-like kinase family, compensates for loss of Stk25 and vice versa with sex independent manner. MST3 overexpression rescued neuronal migration deficit and abnormal axonogenesis in Stk25 cKO brains. Mechanistically, STK25 leads to Rac1 activation and reduced RhoA levels in the developing brain, both of which are required to fully restore neuronal migration in the Stk25 cKO brain. Abnormal migration phenotypes are also rescued by overexpression of Bacurd1and Cul3, which target RhoA for degradation, and activate Rac1. This study reveals that MST3 upregulation is capable of rescuing acute Stk25 deficiency and resolves details of signaling downstream STK25 required for corticogenesis both common to and distinct from MST3 signaling.SIGNIFICANCE STATEMENT Proper neuronal migration during cortical development is required for normal neuronal function. Here, we show that STK25 and MST3 kinases regulate neuronal migration and polarization in a mutually compensatory manner. Furthermore, STK25 balances Rac1 activity and RhoA level through forming complexes with α-PIX and β-PIX, GTPase regulatory enzymes, and Cullin3-Bacurd1/Kctd13, a pair of RhoA ubiquitination molecules in a kinase activity-independent manner. Our findings demonstrate the importance of overlapping and unique roles of STK25 and MST3 to regulate Rho GTPase activities in cortical development.
Collapse
|
6
|
Kurhe Y, Caputo M, Cansby E, Xia Y, Kumari S, Anand SK, Howell BW, Marschall HU, Mahlapuu M. Antagonizing STK25 Signaling Suppresses the Development of Hepatocellular Carcinoma Through Targeting Metabolic, Inflammatory, and Pro-Oncogenic Pathways. Cell Mol Gastroenterol Hepatol 2022; 13:405-23. [PMID: 34624527 DOI: 10.1016/j.jcmgh.2021.09.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Hepatocellular carcinoma (HCC) is one of the most fatal and fastest-growing cancers. Recently, nonalcoholic steatohepatitis (NASH) has been recognized as a major catalyst for HCC. Thus, additional research is critically needed to identify mechanisms involved in NASH-induced hepatocarcinogenesis, to advance the prevention and treatment of NASH-driven HCC. Because the sterile 20-type kinase serine/threonine kinase 25 (STK25) exacerbates NASH-related phenotypes, we investigated its role in HCC development and aggravation in this study. METHODS Hepatocarcinogenesis was induced in the context of NASH in Stk25 knockout and wild-type mice by combining chemical procarcinogens and a dietary challenge. In the first cohort, a single injection of diethylnitrosamine was combined with a high-fat diet-feeding. In the second cohort, chronic administration of carbon tetrachloride was combined with a choline-deficient L-amino-acid-defined diet. To study the cell-autonomous mode of action of STK25, we silenced this target in the human hepatocarcinoma cell line HepG2 by small interfering RNA. RESULTS In both mouse models of NASH-driven HCC, the livers from Stk25-/- mice showed a markedly lower tumor burden compared with wild-type controls. We also found that genetic depletion of STK25 in mice suppressed liver tumor growth through reduced hepatocellular apoptosis and decreased compensatory proliferation, by a mechanism that involves protection against hepatic lipotoxicity and inactivation of STAT3, ERK1/2, and p38 signaling. Consistently, silencing of STK25 suppressed proliferation, apoptosis, migration, and invasion in HepG2 cells, which was accompanied by lower expression of the markers of epithelial-mesenchymal transition and autophagic flux. CONCLUSIONS This study provides evidence that antagonizing STK25 signaling hinders the development of NASH-related HCC and provides an impetus for further analysis of STK25 as a therapeutic target for NASH-induced HCC treatment in human beings.
Collapse
|
7
|
Mencarelli C, Nitarska J, Kroecher T, Ferraro F, Massey K, Riccio A, Pichaud F. RanBP1 Couples Nuclear Export and Golgi Regulation through LKB1 to Promote Cortical Neuron Polarity. Cell Rep 2018; 24:2529-2539.e4. [PMID: 30184488 PMCID: PMC6137820 DOI: 10.1016/j.celrep.2018.07.107] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 06/06/2018] [Accepted: 07/30/2018] [Indexed: 11/18/2022] Open
Abstract
Neuronal polarity in the developing cortex begins during the early stages of neural progenitor migration toward the cortical plate and culminates with the specification of the axon and dendrites. Here, we demonstrate that the Ran-dependent nucleocytoplasmic transport machinery is essential for the establishment of cortical neuron polarity. We found that Ran-binding protein 1 (RanBP1) regulates axon specification and dendritic arborization in cultured neurons in vitro and radial neural migration in vivo. During axonogenesis, RanBP1 regulates the cytoplasmic levels of the polarity protein LKB1/Par4, and this is dependent on the nuclear export machinery. Our results show that downstream of RanBP1, LKB1 function is mediated by the STK25-GM130 pathway, which promotes axonogenesis through Golgi regulation. Our results indicate that the nucleocytoplasmic transport machinery is a main regulator of neuron polarity, including radial migration, and that the regulated export of LKB1 through RanBP1 is a limiting step of axonogenesis.
Collapse
Affiliation(s)
- Chiara Mencarelli
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Justyna Nitarska
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Tim Kroecher
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Francesco Ferraro
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Katherine Massey
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Antonella Riccio
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Franck Pichaud
- Medical Research Council Laboratory for Molecular Cell Biology, University College London, Gower Street, London WC1E 6BT, UK.
| |
Collapse
|
8
|
Wu F, Gao P, Wu W, Wang Z, Yang J, Di J, Jiang B, Su X. STK25-induced inhibition of aerobic glycolysis via GOLPH3-mTOR pathway suppresses cell proliferation in colorectal cancer. J Exp Clin Cancer Res 2018; 37:144. [PMID: 29996891 PMCID: PMC6042396 DOI: 10.1186/s13046-018-0808-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/07/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Serine/threonine protein kinase 25 (STK25) is critical in regulating whole-body glucose and insulin homeostasis and the accumulation of ectopic lipids. The Warburg effect, also known as aerobic glycolysis, is an essential metabolic characteristic of cancer cells. However, the effects of STK25 on aerobic glycolysis of cancer cells remain unexplored. The aim of this study is to investigate the role of STK25 in colorectal cancer (CRC) and to elucidate the underlying mechanisms. METHODS The influences of STK25 on the cell proliferation were evaluated by MTT and colony formation assays. The roles of STK25 in aerobic glycolysis were determined by glucose uptake and lactate production assays. The interaction between STK25 and GOLPH3 was detected by co-immunoprecipitation, GST pull-down, and His-tag pull-down assays. Western blot was used to measure the expression of glycolytic genes, and the status of kinases in mTOR pathway. Moreover, a xenograft mouse model was used to investigate the effects of STK25 in vivo. The prognostic significance of STK25 was analyzed using public CRC datasets by a log-rank test. RESULTS STK25 suppressed proliferation, glycolysis and glycolytic gene expression in CRC cells. STK25 interacted with GOLPH3 and mediated glycolysis through GOLPH3-regulated mTOR signaling. Consistent with these observations, silencing of STK25 promoted tumor growth and glycolytic gene expression in an in vivo xenograft mouse model. Moreover, high levels of STK25 correlated with favorable prognosis in patients with CRC. CONCLUSIONS Our results demonstrated that STK25 negatively regulates the proliferation and glycolysis via GOLPH3-dependent mTOR signaling. Accordingly, STK25 could be a potential therapeutic target for the treatment of CRC.
Collapse
Affiliation(s)
- Fan Wu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China.,Inner Mongolia People's Hospital, Hohhot, 010010, China
| | - Pin Gao
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China
| | - Wei Wu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China
| | - Zaozao Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China
| | - Jie Yang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China
| | - Jiabo Di
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China
| | - Beihai Jiang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China.
| | - Xiangqian Su
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Surgery IV, Peking University Cancer Hospital & Institute, 52 Fucheng Road, Haidian District, Beijing, 100142, China.
| |
Collapse
|
9
|
Zhang H, Ma X, Peng S, Nan X, Zhao H. Differential expression of MST4, STK25 and PDCD10 between benign prostatic hyperplasia and prostate cancer. Int J Clin Exp Pathol 2014; 7:8105-8111. [PMID: 25550858 PMCID: PMC4270628] [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] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 11/08/2014] [Indexed: 06/04/2023]
Abstract
Both benign prostatic hyperplasia (BPH) and prostate cancer (PC) are common diseases for men around the world. Both serine/threonine protein kinase MST4 (MST4) and serine/threonine kinase 25 (STK25) belong to the Ste20-like kinases and interact with programmed cell death 10 (PDCD10) which is closely linked to cancer diseases. To clarify the roles of MST4, STK25 and PDCD10 in prostate carcinogenesis, we examined MST4, STK25 and PDCD10 expression in tissue microarray blocks containing 110 cores of BPH and 160 cores of PC immunohistochemically and evaluated their correlation with clinicopathological findings. MST4 was not expressed in all the BPH cases and expressed in 38.7% of PC cases (P < 0.0001). STK25 expression was found in 77.3% of BPH cases and 93.1% of PC cases (P < 0.0001). PDCD10 staining was considered weak in 82 (74.5%) and strong in 28 (25.5%) of BPH cases. However, in prostate cancer cases, PDCD10 staining was weak in 95 (59.4%) and strong in 65 (40.6%) (P < 0.05). PDCD10 and STK25 immunostaining were associated with age in prostatic hyperplasia cases (P < 0.05). The staining intensity for STK25 was significantly greater in Gleason grades 3-5 (47.1% of such cases staining strongly) compared with other grades of prostate cancer (only 26.5% of these cases staining strongly; P < 0.05). Our results suggest that MST4, STK25 and PDCD10 are unregulated in prostate cancer and may play roles in prostate tumorigenesis. MST4 may be a helpful marker for identifying prostate cancer.
Collapse
Affiliation(s)
- Heyu Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking UniversityNo. 38 Xueyuan Road, Beijing, PR China
- Human Disease Genomics Center, Peking University38 Xueyuan Road, Beijing, PR China
- Central Laboratory, Peking University School of Stomatology22 South Zhongguancun Road, Beijing, PR China
| | - Xi Ma
- State Key Lab of Animal Nutrition, China Agricultural University2 Yuanmingyuan West Road, Beijing 100193, PR China
| | - Saihui Peng
- Department of Immunology, School of Basic Medical Sciences, Peking UniversityNo. 38 Xueyuan Road, Beijing, PR China
- Human Disease Genomics Center, Peking University38 Xueyuan Road, Beijing, PR China
| | - Xu Nan
- Department of Medical Genetics, School of Basic Medical Sciences, Peking University38 Xueyuan Road, Beijing, PR China
- Human Disease Genomics Center, Peking University38 Xueyuan Road, Beijing, PR China
| | - Hongshan Zhao
- Department of Medical Genetics, School of Basic Medical Sciences, Peking University38 Xueyuan Road, Beijing, PR China
- Human Disease Genomics Center, Peking University38 Xueyuan Road, Beijing, PR China
| |
Collapse
|