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Zhu Q, Wang Y, Liu Y, Yang X, Shuai Z. Prostate transmembrane androgen inducible protein 1 (PMEPA1): regulation and clinical implications. Front Oncol 2023; 13:1298660. [PMID: 38173834 PMCID: PMC10761476 DOI: 10.3389/fonc.2023.1298660] [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: 09/22/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Prostate transmembrane androgen inducible protein 1 (PMEPA1) can promote or inhibit prostate cancer cell growth based on the cancer cell response to the androgen receptor (AR). Further, it can be upregulated by transforming growth factor (TGF), which downregulates transforming growth factor-β (TGF-β) signaling by interfering with R-Smad phosphorylation to facilitate TGF-β receptor degradation. Studies have indicated the increased expression of PMEPA1 in some solid tumors and its functioning as a regulator of multiple signaling pathways. This review highlights the multiple potential signaling pathways associated with PMEPA1 and the role of the PMEPA1 gene in regulating prognosis, including transcriptional regulation and epithelial mesenchymal transition (EMT). Moreover, the relevant implications in and outside tumors, for example, as a biomarker and its potential functions in lysosomes have also been discussed.
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Affiliation(s)
- Qicui Zhu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yue Wang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yaqian Liu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiaoke Yang
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zongwen Shuai
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Inflammation and Immune Mediated Diseases Laboratory of Anhui, Hefei, China
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Zuo Y, Chai Y, Liu X, Gao Z, Jin X, Wang F, Bai Y, Zheng Z. A ratiometric fluorescent probe based on spiropyran in situ switching for tracking dynamic changes of lysosomal autophagy and anticounterfeiting. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122338. [PMID: 36657288 DOI: 10.1016/j.saa.2023.122338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/28/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Autophagy is the controlled breakdown of cellular components that dysfunctional or nonessential, and the decomposition products are further recycled and synthesized for the normal physiological activities of cells. Lysosomal autophagy has been implicated in cancer, neurological disorders, Parkinson's disease, etc. Therefore, it is necessary to develop a fluorescent probe that can clearly describe the process of lysosomal autophagy. However, there are currently limited fluorescent probes for ratiometric monitoring of the autophagic process in dual channels. To solve this problem, a fluorescent probe based on spiropyran with lysosomal targeting and pH response for ratiometric monitoring the autophagy process of lysosomes were designed. The sensitive response of the probe to pH in vitro was verified by UV and fluorescence spectrum tests. Meanwhile, the probe demonstrated the ability to monitor the intracellular pH fluctuations. In addition, the application of Lyso-SD in the field of anti-counterfeiting has been proposed based on the obvious photoluminescence ability of Lyso-SD under UV irradiation.
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Affiliation(s)
- Yujing Zuo
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China; Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China
| | - Yanfu Chai
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China; School of Mechanical and Electrical Engineering, Shaoxing University, Shaoxing 312000, China; Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China.
| | - Xiaofei Liu
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Zhiming Gao
- Tianjin Key Laboratory of Composite & Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xiaofeng Jin
- Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China
| | - Feng Wang
- Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China
| | - Yongjie Bai
- Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China
| | - Zhijun Zheng
- Ningbo Yinzhou Chinaust Automobile Fittings Corp. Ltd., Ningbo 315142, China
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Li Y, Zhang Y, Li L, Zhang M, Song N, Zhao Q, Liu Z, Diao A. TMEPAI promotes degradation of the NF-κB signaling pathway inhibitory protein IκBα and contributes to tumorigenesis. Int J Biol Macromol 2023; 235:123859. [PMID: 36868334 DOI: 10.1016/j.ijbiomac.2023.123859] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023]
Abstract
The transmembrane prostate androgen-induced protein (TMEPAI) is known to be highly expressed in various types of cancer and promoted oncogenic abilities. However, the mechanisms whereby TMEPAI facilitates tumorigenesis are not fully understood. Here we reported that expression of TMEPAI activated the NF-κB signaling. TMEPAI showed direct interaction with NF-κB pathway inhibitory protein IκBα. Though ubiquitin ligase Nedd4 (neural precursor cell expressed, developmentally down-regulated 4) did not interact with IκBα directly, TMEPAI recruited Nedd4 for ubiquitination of IκBα, leading to IκBα degradation through the proteasomal and lysosomal pathway, and promoted activation of NF-κB signaling. Further study indicated NF-κB signaling is involved in TMEPAI-induced cell proliferation and tumor growth in immune deficient mice. This finding helps to further understand the mechanism of TMEPAI on tumorigenesis and suggests TMEPAI is potential target for cancer treatment.
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Affiliation(s)
- Yuyin Li
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China.
| | - Yaxin Zhang
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Lu Li
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Mei Zhang
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Ning Song
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Qing Zhao
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Zhenxing Liu
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China
| | - Aipo Diao
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, State Key Laboratory of Food Nutrition and Safety, Tianjin 300457, China.
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Wardhani BWK, Louisa M, Watanabe Y, Setiabudy R, Kato M. TGF-β-Induced TMEPAI Promotes Epithelial-Mesenchymal Transition in Doxorubicin-Treated Triple-Negative Breast Cancer Cells via SMAD3 and PI3K/AKT Pathway Alteration. BREAST CANCER-TARGETS AND THERAPY 2021; 13:529-538. [PMID: 34584450 PMCID: PMC8464328 DOI: 10.2147/bctt.s325429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/03/2021] [Indexed: 12/27/2022]
Abstract
Introduction Epithelial–mesenchymal transition (EMT) and overexpression of drug efflux transporters have been reported to cause doxorubicin resistance. Our previous study indicated that TMEPAI (transmembrane prostate androgen-induced protein) attenuated doxorubicin sensitivity in triple-negative breast cancer cells. However, how TMEPAI contributes to doxorubicin resistance in TNBC remains unclear. Thus, the present study aimed to elucidate the mechanism of TMEPAI in doxorubicin resistance in triple-negative breast cancer cells. Methods We used BT549, triple-negative cells wild type (WT), and BT549 TMEPAI knock-out. Both cells were treated with TGF-β 2 ng/mL for 24 hours, followed by TGF-β 2 ng/mL and doxorubicin 12.9 nM for another 24 hours. Afterward, the cells were harvested and counted. Cells were further lysed and used for RT-PCR and Western blot analysis. We determined the expression levels of proliferation, apoptosis, EMT markers, and drug efflux transporters. Additionally, we investigated the expressions of PI3K as well as SMAD3 and AKT phosphorylation. Results TNBC cells were shown to be less sensitive to doxorubicin in the presence of TMEPAI. TMEPAI was shown to alleviate the mRNA expressions of apoptosis markers: Bax, Bcl2, Caspase-3, and Caspase-9. Our results indicated that the presence of TMEPAI greatly amplifies EMT and increases drug efflux transporter expressions after doxorubicin treatment. Furthermore, our findings demonstrated that TMEPAI reduced the action of doxorubicin in inhibiting SMAD3 phosphorylation. TMEPAI was also shown to modify the effect of doxorubicin by reducing PI3K expressions and Akt phosphorylation in triple-negative breast cancer cells. Conclusion Our findings indicate that TMEPAI promotes EMT and drug efflux transporters at least in part by shifting doxorubicin action from SMAD3 phosphorylation reduction to PI3K/AKT inhibition in triple-negative breast cancer cells.
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Affiliation(s)
- Bantari W K Wardhani
- Biomedical Sciences, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia.,Department of Pharmacology, Faculty of Military Pharmacy, Indonesia Defense University, West Java, Indonesia
| | - Melva Louisa
- Department of Pharmacology and Therapeutics, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Yukihide Watanabe
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Rianto Setiabudy
- Department of Pharmacology and Therapeutics, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Song M, Zhou B, Li B, Tian L. PMEPA1 Stimulates the Proliferation, Colony Formation of Pancreatic Cancer Cells via the MAPK Signaling Pathway. Am J Med Sci 2021; 362:291-296. [PMID: 33857498 DOI: 10.1016/j.amjms.2021.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/30/2020] [Accepted: 04/07/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Prostate transmembrane protein androgen-induced 1 (PMEPA1) is reportedly highly expressed in pancreatic cancer (PC). However, its biological role and associated mechanisms have not been addressed in PC progression. METHODS PMEPA1 mRNA expression and survival outcome of PC patients were evaluated via the GEPIA website. Lentiviral-mediated shRNA knockdown and ectopic expression of PMEPA1 were implemented in the pancreatic cancer cell line PANC1 cells. CCK-8 and colony formation assays were carried out to assess the biological function of PMEPA1 in PANC1 proliferation and viability. Dual-luciferase reporter assays and RT-qPCR were used to assess the interactive relationship between PMEPA1 and the MAPK signaling pathway. RESULTS By analyzing the data from GEPIA, we found that PMEPA1 mRNA expression is overexpressed in PC tissues compared with matched nontumor tissues. PMEPA1-high PC patients are predicted to have a worse prognosis than PMEPA1-low PC patients. We found that PMEPA1 shRNA suppressed PANC1 proliferation and colony formation capacity, while enforced expression of PMEPA1 yielded the opposite results. Mechanical investigations showed that PMEPA1 exerts its tumor-promoting function in pancreatic cancer via activation of the MAPK signaling pathway. CONCLUSION PMEPA1 promotes the progression of PC at least partially by activating the MAPK signaling pathway; thus, the PMEPA1/MAPK axis may be a potential therapeutic target in pancreatic cancer.
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Affiliation(s)
- Mengqi Song
- Department of Hepatobiliary and Pancreatic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - Bin Zhou
- Department of Hepatobiliary and Pancreatic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China; Department of Retroperitoneal Tumor Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - Bilu Li
- Department of Uroogic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China
| | - Lantian Tian
- Department of Hepatobiliary and Pancreatic Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, 266003, China.
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Hirata H, Xu X, Nishioka K, Matsuhisa F, Kitajima S, Kukita T, Murayama M, Urano Y, Miyamoto H, Mawatari M, Kukita A. PMEPA1 and NEDD4 control the proton production of osteoclasts by regulating vesicular trafficking. FASEB J 2021; 35:e21281. [PMID: 33484199 DOI: 10.1096/fj.202001795r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/13/2020] [Accepted: 12/01/2020] [Indexed: 11/11/2022]
Abstract
Osteoclast bone resorption activity is critically regulated to maintain bone homeostasis. Osteoclasts resorb bone by producing protons and acid hydrolase via lysosomal secretion, however, a detailed mechanism remains elusive. PMEPA1 is a vesicular membrane protein, which binds to the NEDD4 family member of ubiquitin ligases. We have previously reported that Pmepa1 is highly expressed in bone resorbing osteoclasts, and regulates bone resorption. Here, we investigated the mechanism of bone resorption regulated by PMEPA1. Mutant mice lacking NEDD4-binding domains of PMEPA1 displayed enhanced bone volume, and reduced bone resorption activity in comparison with those of WT mice. Analysis with pH-sensitive fluorescence probe revealed that proton secretion from osteoclasts significantly decreased in Pmepa1 mutant osteoclasts. Immunofluorescence analysis revealed that PMEPA1 was colocalized with NEDD4, V0A3, and V0D2 subunits of vacuolar ATPase, which regulate the proton production of osteoclasts. In addition, Nedd4 knockdown reduced bone resorption and proton secretion of osteoclasts. Furthermore, Pmepa1 mutation and Nedd4 knockdown altered the cytoplasmic distribution of components of V-ATPase and expression of autophagy-related proteins, suggesting that lysosomal secretion is affected. Collectively, these findings indicate that PMEPA1 controls proton secretion from osteoclasts via NEDD4 by regulating vesicular trafficking, and NEDD4 is an important regulator of bone resorption.
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Affiliation(s)
- Hirohito Hirata
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Molecular Cell Biology & Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Kenichi Nishioka
- Department of Internal Medicine, Musashimurayama Hospital, Tokyo, Japan
| | - Fumikazu Matsuhisa
- Division of Biological Resources and Development, Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan
| | - Shuji Kitajima
- Division of Biological Resources and Development, Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Masatoshi Murayama
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasuteru Urano
- Department of Chemical Biology & Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Chemistry & Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Miyamoto
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaaki Mawatari
- Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
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Akram M, Riaz M, Wadood AWC, Hazrat A, Mukhtiar M, Ahmad Zakki S, Daniyal M, Shariati MA, Said Khan F, Zainab R. Medicinal plants with anti-mutagenic potential. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1749527] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Muhammad Akram
- Department of Eastern Medicine, Government College University, Faisalabad, Pakistan
| | - Muhammad Riaz
- Department of Allied Health Sciences, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
| | - Abdul Wadood Chishti Wadood
- University College of Conventional Medicine, Department of Eastern Medicine, Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Ali Hazrat
- Department of Botany, University of Malakand, Chakdara, Pakistan
| | - Muhammad Mukhtiar
- Department of Pharmacy, University of Poonch, Rawalakot, Azad Kashmir, Pakistan
| | | | - Muhammad Daniyal
- Faculty of Eastern Medicine, Hamdard University, Karachi, Pakistan
| | - Mohammad Ali Shariati
- K.G. Razumovsky, Moscow State University of Technologies and Management (the First Cossack University), Moscow, Russian Federation
- Kazakh Research Institute of Processing and Food Industry (Semey Branch), Semey, Kazakhstan
| | - Fahad Said Khan
- Department of Eastern Medicine, Government College University, Faisalabad, Pakistan
| | - Rida Zainab
- Department of Eastern Medicine, Government College University, Faisalabad, Pakistan
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Li J, Liu G, Li L, Yao Z, Huang J. Research progress on the effect of autophagy-lysosomal pathway on tumor drug resistance. Exp Cell Res 2020; 389:111925. [DOI: 10.1016/j.yexcr.2020.111925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/22/2020] [Accepted: 02/25/2020] [Indexed: 12/14/2022]
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Wardhani BW, Puteri MU, Watanabe Y, Louisa M, Setiabudy R, Kato M. TGF-β-Induced TMEPAI Attenuates the Response of Triple-Negative Breast Cancer Cells to Doxorubicin and Paclitaxel. J Exp Pharmacol 2020; 12:17-26. [PMID: 32158279 PMCID: PMC6986256 DOI: 10.2147/jep.s235233] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/07/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose Triple-negative breast cancer (TNBC) is a refractory type of breast cancer with poor prognosis and limited choice for treatment. Previous studies had shown that TNBC has high expressions of transmembrane prostate androgen-induced protein (TMEPAI). TMEPAI was known to be induced by TGF-β/Smad signaling and have tumorigenic functions that converting TGF-β from tumor suppressor to tumor promoter and inducing epithelial–mesenchymal transition (EMT). Therefore, we aimed to define the role of TMEPAI in triple-negative breast cancer cells treatment using several anti-cancers in the presence of TGF-β. Methods TMEPAI-knock out (KO) was carried out in a triple-negative breast cancer cell, BT549. TMEPAI editing was developed using the CRISPR-Cas9 system using two combinations of sgRNA to remove exon 4 of the TMEPAI gene entirely. Genotyping and proteomic analysis were performed to check the establishment of the TMEPAI-KO cells. Wild type (WT) and KO cells were used to determine inhibitory concentration 50% (IC50) of several anti-cancers: doxorubicin, cisplatin, paclitaxel, and bicalutamide in the presence of TGF-β treatment. Results KO cells were successfully established by completely removing the TMEPAI gene, which was proven in genomic and proteomic analysis. Further, in TMEPAI-KO cells, we found a significant reduction of IC50 for doxorubicin and paclitaxel, and minimal effects were seen for cisplatin and bicalutamide. Our findings suggest that TGF-β-induced TMEPAI attenuates the response of TNBC to doxorubicin and paclitaxel, but not to cisplatin and bicalutamide. Conclusion TGF-β induced TMEPAI contributes to the reduced response of TNBC treatment to doxorubicin and paclitaxel, but minimal on cisplatin and bicalutamide. Further study is needed to confirm our findings in other growth factor-induced cells, as well as in in vivo model.
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Affiliation(s)
- Bantari Wk Wardhani
- Doctoral Program in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Meidi Utami Puteri
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukihide Watanabe
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Melva Louisa
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Rianto Setiabudy
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Xu X, Hirata H, Shiraki M, Kamohara A, Nishioka K, Miyamoto H, Kukita T, Kukita A. Prostate transmembrane protein androgen induced 1 is induced by activation of osteoclasts and regulates bone resorption. FASEB J 2018; 33:4365-4375. [PMID: 30557043 DOI: 10.1096/fj.201801573r] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Osteoclasts derived from hematopoietic cells are activated on bone surface. To resorb bone, osteoclasts release acid and lysosome acid hydrolase via membrane transport. Prostate transmembrane protein androgen induced 1 (Pmepa1) is a type I transmembrane protein that regulates proliferation, migration, and metastasis of cancer cells. Because recent reports showed that Pmepa1 is involved in membrane transport in cancer cells, we investigated the role of Pmepa1 in osteoclast function. Pmepa1 expression was barely detected in osteoclasts formed on plastic surfaces in vitro, but was markedly increased in activated osteoclasts formed on calcified matrix. Inhibitors of bone resorption, such as alendronate, bafilomycin A1, and the PI3K inhibitor LY294002, suppressed the expression of Pmepa1 in osteoclasts. Knockdown of Pmepa1 expression impaired bone resorption activity and inhibited formation of a ring-like, actin-rich podosome belt that is essential for osteoclast function. Pmepa1 protein localized to lysosomes in osteoclasts. In addition, in sites of bone destruction observed in rats with adjuvant-induced arthritis, a marked high level of Pmepa1 expression was associated with the osteoclasts' resorbing bone. Our results suggest that Pmepa1 is a critical regulator of bone resorption and is a promising marker for activated osteoclasts and a potential therapeutic target in pathologic bone destruction.-Xu, X., Hirata, H., Shiraki, M., Kamohara, A., Nishioka, K., Miyamoto, H., Kukita, T., Kukita, A. Prostate transmembrane protein androgen induced 1 is induced by activation of osteoclasts and regulates bone resorption.
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Affiliation(s)
- Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan; and
| | - Hirohito Hirata
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Makoto Shiraki
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Asana Kamohara
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Kenichi Nishioka
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama City, Japan
| | - Hiroshi Miyamoto
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan; and
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
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Li Y, Wang J, Song N, Zeng F, Zhao M, Wang A, Chen Y, Jing L, Yu P, Diao A. 2-(2-nitrobenzylidene) indolin-3-one compound inhibits transmembrane prostate androgen-induced protein (TMEPAI) expression and cancer cell proliferation. Cell Prolif 2018; 51:e12469. [PMID: 30069967 DOI: 10.1111/cpr.12469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/19/2018] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVES The transmembrane prostate androgen-induced protein (TMEPAI) is aberrantly expressed in many cancer and plays a crucial role in tumourigenesis, which makes it a potential cancer therapeutic target for drug discovery. MATERIALS AND METHODS Here, we employed a firefly luciferase reporter driven by the TMEPAI gene promoter to screen for compound capable of inhibiting the expression of TMEPAI, and the effects of TMEPAI inhibitor on cancer cell proliferation were evaluated using the colony formation assay, cell cycle analysis, Ki-67 immunofluorescence assay and EdU incorporation assay. RESULTS 2-(2-nitrobenzylidene) indolin-3-one (JHY-A007-50) was identified and shown to effectively inhibit the TMEPAI promoter activity. Further studies revealed that JHY-A007-50 specifically inhibited the expression of TMEPAI at both the mRNA and protein levels. Moreover, we found that JHY-A007-50 could inhibit cell proliferation and induce cell cycle arrest at the G1 phase. Our results showed that overexpression of TMEPAI decreased the inhibitory effects of JHY-A007-50 on cancer cell proliferation, and JHY-A007-50 did not affect the cell viability of HeLa cells knocked down of TMEPAI. CONCLUSIONS Taken together, these results suggest that compound JHY-A007-50 mediates the downregulation of TMEPAI expression and inhibits cell proliferation in cancer cells.
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Affiliation(s)
- Yuyin Li
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Jianjun Wang
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Ning Song
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Feihong Zeng
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Miaomiao Zhao
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Ali Wang
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Yue Chen
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Lei Jing
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Peng Yu
- Sino-French Joint Lab of Food Nutrition/Safety and Medicinal Chemistry, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, Tianjin University of Science and Technology, Tianjin, China
| | - Aipo Diao
- Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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Itoh S, Itoh F. TMEPAI family: involvement in regulation of multiple signalling pathways. J Biochem 2018; 164:195-204. [DOI: 10.1093/jb/mvy059] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/25/2018] [Indexed: 01/10/2023] Open
Affiliation(s)
- Susumu Itoh
- Laboratory of Biochemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo, Japan
| | - Fumiko Itoh
- Laboratory of Cardiovascular Medicine, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, Japan
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Du Y, Liu Y, Xu Y, Juan J, Zhang Z, Xu Z, Cao B, Wang Q, Zeng Y, Mao X. The transmembrane protein TMEPAI induces myeloma cell apoptosis by promoting degradation of the c-Maf transcription factor. J Biol Chem 2018; 293:5847-5859. [PMID: 29467225 DOI: 10.1074/jbc.ra117.000972] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/14/2018] [Indexed: 11/06/2022] Open
Abstract
TMEPAI (transmembrane prostate androgen-induced protein, also called prostate transmembrane protein, androgen-induced 1 (PMEPA1)) is a type I transmembrane (TM) protein, but its cellular function is largely unknown. Here, studying factors influencing the stability of c-Maf, a critical transcription factor in multiple myeloma (MM), we found that TMEPAI induced c-Maf degradation. We observed that TMEPAI recruited NEDD4 (neural precursor cell expressed, developmentally down-regulated 4), a WW domain-containing ubiquitin ligase, to c-Maf, leading to its degradation through the proteasomal pathway. Further investigation revealed that TMEPAI interacts with NEDD4 via its conserved PY motifs. Alanine substitution or deletion of these motifs abrogated the TMEPAI complex formation with NEDD4, resulting in failed c-Maf degradation. Functionally, TMEPAI suppressed the transcriptional activity of c-Maf. Of note, increased TMEPAI expression was positively associated with the overall survival of MM patients. Moreover, TMEPAI was down-regulated in MM cells, and re-expression of TMEPAI induced MM cell apoptosis. In conclusion, this study highlights that TMEPAI decreases c-Maf stability by recruiting the ubiquitin ligase NEDD4 to c-Maf for proteasomal degradation. Our findings suggest that the restoration of functional TMEPA1 expression may represent a promising complementary therapeutic strategy for treating patients with MM.
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Affiliation(s)
- Yanyun Du
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yan Liu
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yujia Xu
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiaxiang Juan
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Zubin Zhang
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Zhuan Xu
- the Department of Neurology, First Affiliated Hospital of Soochow University, Suzhou 215100, China
| | - Biyin Cao
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Qi Wang
- the Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yuanying Zeng
- Department of Oncology, Suzhou Municipal Hospital, Suzhou 215100, China, and
| | - Xinliang Mao
- From the Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China, .,the Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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Funakubo N, Xu X, Kukita T, Nakamura S, Miyamoto H, Kukita A. Pmepa1 induced by RANKL-p38 MAPK pathway has a novel role in osteoclastogenesis. J Cell Physiol 2017; 233:3105-3118. [DOI: 10.1002/jcp.26147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/10/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Noboru Funakubo
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
- Faculty of Dentistry; Oral & Maxillofacial Oncology; Kyushu University; Maidashi Fukuoka Japan
| | - Xianghe Xu
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
| | - Toshio Kukita
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
| | - Seiji Nakamura
- Faculty of Dentistry; Oral & Maxillofacial Oncology; Kyushu University; Maidashi Fukuoka Japan
| | - Hiroshi Miyamoto
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
| | - Akiko Kukita
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
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Luo S, Jing L, Zhao T, Li Y, Liu Z, Diao A. Ubiquitination and dynactin regulate TMEPAI lysosomal trafficking. Sci Rep 2017; 7:42668. [PMID: 28218281 PMCID: PMC5316989 DOI: 10.1038/srep42668] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/13/2017] [Indexed: 12/17/2022] Open
Abstract
The transmembrane prostate androgen-induced protein (TMEPAI) has been reported to be elevated in various tumor cells, is localized to the lysosome and promotes lysosome stability. The molecular mechanism of TMEPAI trafficking however to the lysosome is unknown. Here we report that clathrin and CI-M6PR mediate TMEPAI transport from the Golgi directly into the endo-lysosomal pathway. TMEPAI is ubiquitinated at its C-terminal region and ubiquitination modification of TMEPAI is a signal for its lysosomal trafficking. Moreover, TMEPAI binds the ubiquitin binding proteins Hrs and STAM which is required for its lysosomal transport. In addition, TMEPAI interacts with the dynactin pointed-end complex subunits dynactin 5 and dynactin 6. The aa 132–155 domain is essential for specific TMEPAI binding and deletion of this binding site leads to mis-trafficking of TMEPAI to the plasma membrane. These results reveal the pathway and mechanism regulating transport of TMEPAI to the lysosome, which helps to further understand the role of TMEPAI in tumorigenesis.
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Affiliation(s)
- Shenheng Luo
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
| | - Lei Jing
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
| | - Tian Zhao
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
| | - Yuyin Li
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
| | - Zhenxing Liu
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
| | - Aipo Diao
- School of Biotechnology, Tianjin University of Science and Technology, Key Lab of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin, 300457, China
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