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Yu Z, Wu X, Zhu J, Yan H, Li Y, Zhang H, Zhong Y, Lin M, Ye G, Li X, Jin J, Li K, Wang J, Zhuang H, Lin T, He J, Lu C, Xu Z, Zhang X, Li H, Jin X. BCLAF1 binds SPOP to stabilize PD-L1 and promotes the development and immune escape of hepatocellular carcinoma. Cell Mol Life Sci 2024; 81:82. [PMID: 38340178 PMCID: PMC10858942 DOI: 10.1007/s00018-024-05144-z] [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: 09/17/2023] [Revised: 12/21/2023] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
Interaction between programmed death-1 (PD-1) ligand 1 (PD-L1) on tumor cells and PD-1 on T cells allows tumor cells to evade T cell-mediated immune surveillance. Strategies targeting PD-1/PD-L1 have shown clinical benefits in a variety of cancers. However, limited response rates in hepatocellular carcinoma (HCC) have prompted us to investigate the molecular regulation of PD-L1. Here, we identify B cell lymphoma-2-associated transcription factor 1 (BCLAF1) as a key PD-L1 regulator in HCC. Specifically, BCLAF1 interacts with SPOP, an E3 ligase that mediates the ubiquitination and degradation of PD-L1, thereby competitively inhibiting SPOP-PD-L1 interaction and subsequent ubiquitination and degradation of PD-L1. Furthermore, we determined an SPOP-binding consensus (SBC) motif mediating the BCLAF1-SPOP interaction on BCLAF1 protein and mutation of BCLAF1-SBC motif disrupts the regulation of the SPOP-PD-L1 axis. In addition, BCLAF1 expression was positively correlated with PD-L1 expression and negatively correlated with biomarkers of T cell activation, including CD3 and CD8, as well as with the level of immune cell infiltration in HCC tissues. Besides, BCLAF1 depletion leads to a significant reduction of PD-L1 expression in vitro, and this reduction of PD-L1 promoted T cell-mediated cytotoxicity. Notably, overexpression of BCLAF1 sensitized tumor cells to checkpoint therapy in an in vitro HCC cells-Jurkat cells co-culture model, whereas BCLAF1-SBC mutant decreased tumor cell sensitivity to checkpoint therapy, suggesting that BCLAF1 and its SBC motif serve as a novel therapeutic target for enhancing anti-tumor immunity in HCC.
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Affiliation(s)
- Zongdong Yu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Xiang Wu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Jie Zhu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
| | - Huan Yan
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
| | - Yuxuan Li
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Hui Zhang
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Yeling Zhong
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Man Lin
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Ganghui Ye
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Xinming Li
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Jiabei Jin
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Kailang Li
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Jie Wang
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Hui Zhuang
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Ting Lin
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Jian He
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China
| | - Changjiang Lu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
| | - Zeping Xu
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
| | - Xie Zhang
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China
| | - Hong Li
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China.
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China.
| | - Xiaofeng Jin
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Li Huili Hospital, Ningbo University, Ningbo, 315040, China.
- Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Nngbo University, Ningbo, 315211, China.
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Daggez M, Dolanbay M, Akgun H, Gülseren V, Keklikcioglu SA, Ozcelik B, Serin IS. Human chorionic gonadotropin expression in endometrial hyperplasia and endometrial carcinoma: could it be a new marker? Int J Gynecol Cancer 2023; 33:707-712. [PMID: 37001896 DOI: 10.1136/ijgc-2023-004279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
ObjectiveHuman chorionic gonadotropin (hCG) is a glycoprotein hormone expressed in a variety of tumors and is correlated with advanced stage disease and poor prognosis. This study aimed to determine hCG expression immunohistochemically in endometrial specimens obtained from patients with normal endometrium, endometrial hyperplasia, and endometrial carcinoma, and to determine if there is a correlation between invasiveness and hCG positivity.MethodsThe histologic materials and medical records for patients diagnosed with normal endometrium, endometrial hyperplasia with/without atypia, and endometrial carcinoma between September 2017 and September 2020 were retrospectively reviewed. Immunohistochemical staining for hCG was performed and analyzed semi-quantitatively.ResultsA total of 96 patients were included: normal endometrium (27.1%) (n=26); endometrial hyperplasia without atypia (25%) (n=24); atypical endometrial hyperplasia (22.9%) (n=22); endometrioid endometrial cancer (25%) (n=24). Median age of the patients was 48 (range 28–81) years. hCG was positive in 8.3% of patients with endometrial hyperplasia without atypia, 18.2% in those with atypical endometrial hyperplasia, and 41.7% in those with endometrial cancer (p<0.001). None of the patients with normal endometrium had a positive hCG. The rate of endometrial cancer was 62.5% in the hCG-positive group and 17.5% in the hCG-negative group.ConclusionhCG is expressed to a significantly greater degree in patients with atypical endometrial hyperplasia and endometrial carcinoma and it may be potentially used as a marker for these lesions.
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Affiliation(s)
- Mine Daggez
- Gynecologic Oncology, Erciyes University, Kayseri, Turkey
| | - Mehmet Dolanbay
- Obstetrics and Gynecology, Erciyes University, Kayseri, Turkey
| | - Hulya Akgun
- Pathology, Erciyes University, Kayseri, Turkey
| | - Varol Gülseren
- Gynecologic Oncology, Erciyes University, Kayseri, Turkey
| | | | - Bulent Ozcelik
- Gynecologic Oncology, Erciyes University, Kayseri, Turkey
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Wang H, Wang Q, Wu Y, Lou J, Zhu S, Xu Y. Autophagy-related gene LAPTM4B promotes the progression of renal clear cell carcinoma and is associated with immunity. Front Pharmacol 2023; 14:1118217. [PMID: 36937841 PMCID: PMC10017457 DOI: 10.3389/fphar.2023.1118217] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Renal cell carcinoma (RCC) is a common urologic disease. Currently, surgery is the primary treatment for renal cancer; immunotherapy is not as effective a treatment strategy as expected. Hence, understanding the mechanism in the tumor immune microenvironment (TME) and exploring novel immunotherapeutic targets are considered important. Recent studies have demonstrated that autophagy could affect the immune environment of renal cell carcinoma and induce proliferation and apoptosis of cancer cells. By comparing lysosomal genes and regulating autophagy genes, we identified the LAPTM4B gene to be related to RCC autophagy. By analyzing the TCGA-KIRC cohort using bioinformatics, we found M2 macrophages associated with tumor metastasis to be significantly increased in the immune microenvironment of patients with high expression of LAPTM4B. GO/KEGG/GSEA/GSVA results showed significant differences in tumor autophagy- and metastasis-related pathways. Single-cell sequencing was used to compare the expression of LAPTM4B in different cell types and obtain the differences in lysosomal and autophagy pathway activities in different ccRCC cells. Subsequently, we confirmed the differential expression of LAPTM4B in renal cell carcinoma of different Fuhrman grades using western blotting. Downregulation of LAPTM4B expression significantly reduced the proliferation of renal cell carcinoma cells and promoted cell apoptosis through cell experiments. Overall, our study demonstrated that the autophagy-related gene LAPTM4B plays a critical role in the TME of RCC, and suggested that LAPTM4B is a potential therapeutic target for RCC immunotherapy.
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Affiliation(s)
- He Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qibo Wang
- Department of Urology, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
| | - Yaoyao Wu
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianmin Lou
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shaoxing Zhu
- Department of Urology, Fujian Medical University Union Hospital, Fuzhou, China
- *Correspondence: Shaoxing Zhu, ; Yipeng Xu,
| | - Yipeng Xu
- Department of Urology, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China
- *Correspondence: Shaoxing Zhu, ; Yipeng Xu,
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Chen X, Wang K, Jiang S, Sun H, Che X, Zhang M, He J, Wen Y, Liao M, Li X, Zhou X, Song J, Ren X, Yi W, Yang J, Chen X, Yin M, Cheng Y. eEF2K promotes PD-L1 stabilization through inactivating GSK3β in melanoma. J Immunother Cancer 2022; 10:jitc-2021-004026. [PMID: 35347072 PMCID: PMC8961175 DOI: 10.1136/jitc-2021-004026] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2022] [Indexed: 12/21/2022] Open
Abstract
Background Immune checkpoint blockade (ICB) targeting programmed death ligand-1 (PD-L1)/programmed cell death protein-1 (PD-1) pathway has become an attractive strategy for cancer treatment; however, unsatisfactory efficacy has limited its clinical benefits. Therefore, a more comprehensive understanding of the regulation of PD-L1 expression is essential for developing more effective cancer immunotherapy. Recent studies have revealed the important roles of eukaryotic elongation factor 2 kinase (eEF2K) in promoting epithelial-mesenchymal transition (EMT), angiogenesis, tumor cell migration and invasion; nevertheless, the exact role of eEF2K in the regulation of tumor immune microenvironment (TIME) remains largely unknown. Methods In this study, we used a cohort of 38 patients with melanoma who received anti-PD-1 treatment to explore the association between eEF2K expression and immunotherapy efficacy against melanoma. Immunoprecipitation-mass spectrometry analysis and in vitro assays were used to examine the role and molecular mechanism of eEF2K in regulating PD-L1 expression. We also determined the effects of eEF2K on tumor growth and cytotoxicity of CD8+ T cells in TIME in a mouse melanoma model. We further investigated the efficacy of the eEF2K inhibition in combination with anti-PD-1 treatment in vivo. Results High eEF2K expression is correlated with better therapeutic response and longer survival in patients with melanoma treated with PD-1 monoclonal antibody (mAb). Moreover, eEF2K protein expression is positively correlated with PD-L1 protein expression. Mechanistically, eEF2K directly bound to and inactivated glycogen synthase kinase 3 beta (GSK3β) by phosphorylating it at serine 9 (S9), leading to PD-L1 protein stabilization and upregulation, and subsequently tumor immune evasion. Knockdown of eEF2K decreased PD-L1 expression and enhanced CD8+ T cell activity, thus dramatically attenuating murine B16F10 melanoma growth in vivo. Clinically, p-GSK3β/S9 expression is positively correlated with the expressions of eEF2K and PD-L1, and the response to anti-PD-1 immunotherapy. Furthermore, eEF2K inhibitor, NH125 treatment or eEF2K knockdown enhanced the efficacy of PD-1 mAb therapy in a melanoma mouse model. Conclusions Our results suggest that eEF2K may serve as a biomarker for predicting therapeutic response and prognosis in patients receiving anti-PD-1 therapy, reveal a vital role of eEF2K in regulating TIME by controlling PD-L1 expression and provide a potential combination therapeutic strategy of eEF2K inhibition with ICB therapy.
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Affiliation(s)
- Xisha Chen
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, China
| | - Kuansong Wang
- Department of Pathology, Xiangya hospital and Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Shilong Jiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hongyin Sun
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Xuanling Che
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Minghui Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jiaying He
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ying Wen
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Mengting Liao
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Xiangling Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, China
| | - Xiaoming Zhou
- Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, China
| | - Jianxun Song
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, Texas, USA
| | - Xingcong Ren
- Department of Cancer Biology and Toxicology, Department of Pharmacology, College of Medicine, Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA
| | - Wenjun Yi
- Department of General Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jinming Yang
- Department of Cancer Biology and Toxicology, Department of Pharmacology, College of Medicine, Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA
| | - Xiang Chen
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Mingzhu Yin
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Cheng
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China
- Hunan Provincial Engineering Research Centre of Translational Medicine and Innovative Drug, Changsha, China
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Deng G, Zeng F, He Y, Meng Y, Sun H, Su J, Zhao S, Cheng Y, Chen X, Yin M. EEF2K silencing inhibits tumour progression through repressing SPP1 and synergises with BET inhibitors in melanoma. Clin Transl Med 2022; 12:e722. [PMID: 35184394 PMCID: PMC8858631 DOI: 10.1002/ctm2.722] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Despite the remarkable breakthroughs achieved in the management of metastatic melanoma using immunotherapy and targeted therapies, long-term clinical efficacy is often compromised due to dose-limiting toxicity and innate or acquired resistance. Therefore, it is of vital importance to further explore the molecular mechanisms underlying melanoma progression and identify new targeted therapeutic approaches. METHODS The function of eukaryotic elongation factor-2 kinase (EEF2K) in melanoma were investigated in vitro and in vivo. RNA-seq and chromatin immunoprecipitation (ChIP) assay were undertaken to explore the mechanisms. The antitumor effect of bromodomain and extra terminal domain (BET) inhibitors combined with cytarabine were assessed in melanoma both in vitro and in vivo. RESULTS EEF2K silencing markedly attenuated the malignant phenotypes of melanoma cells, including proliferation, migration, invasion and metastasis. In contrast, EEF2K overexpression promoted melanoma cell proliferation, migration and invasion. Mechanistically, we demonstrated that EEF2K upregulates the phosphorylation of STAT3 (p-STAT3) at Tyr705, which binds to the promoter region of SPP1 and enhances its transcription, thus facilitating melanoma progression. Transfection-induced re-expression of SPP1 partly negated the inhibitory effect of EEF2K silencing on melanoma, whereas inhibition of SPP1 or STAT3 significantly abolished the efficacy of EEF2K on melanoma cells. Intriguingly, EEF2K silencing combined with BET inhibitor treatment further inhibited cell proliferation and promoted apoptosis in melanoma. We further screened the US FDA-approved antitumour drug library and identified cytarabine as a potential clinically applicable EEF2K inhibitor that could synergise with BET inhibitors in melanoma treatment. CONCLUSION EEF2K/p-STAT3/SPP1 may be a novel oncogenic pathway in melanoma progression, which could be a target for novel combination therapy for melanoma.
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Affiliation(s)
- Guangtong Deng
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Furong Zeng
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
- Department of OncologyXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Yi He
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Yu Meng
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Huiyan Sun
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Juan Su
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Shuang Zhao
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Yan Cheng
- Department of PharmacyThe Second Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Xiang Chen
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
| | - Mingzhu Yin
- Department of DermatologyHunan Engineering Research Center of Skin Health and DiseaseHunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalCentral South UniversityChangshaHunanChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalCentral South UniversityChangshaHunanChina
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Su Q, Luo H, Zhang M, Gao L, Zhao F. LAPTM4B promotes the progression of nasopharyngeal cancer. Bosn J Basic Med Sci 2021; 21:305-312. [PMID: 32651973 PMCID: PMC8112566 DOI: 10.17305/bjbms.2020.4738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022] Open
Abstract
Lysosomal protein transmembrane 4 beta (LAPTM4B) is a protein that contains four transmembrane domains. The impact of LAPTM4B on the malignancy of nasopharyngeal carcinoma (NPC) remains unclear. In the present study, we aimed to investigate the role of LAPTM4B in NPC. NPC tissue samples were used to evaluate the expression of LAPTM4B and its relationship with patient prognosis. Furthermore, we inhibited the expression of LAPTM4B in NPC cell lines and examined the effects of LAPTM4B on NPC cell proliferation, migration, and invasion. We found that LAPTM4B protein was mainly localized in the cytoplasm and intracellular membranes of NPC cells. LAPTM4B protein was upregulated in NPC tissues and cell lines. High LAPTM4B expression was closely related to pathological subtypes and disease stages in NPC patients. NPC patients with high LAPTM4B expression had a worse prognosis. LAPTM4B knockdown inhibited the proliferation, migration, and invasion ability of NPC cells. LAPTM4B plays a cancer-promoting role in the progression of NPC and may be a potential target for NPC therapy.
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Affiliation(s)
- Qun Su
- Department of Radiotherapy, Gansu Provincial Cancer Hospital, Lanzhou, China
| | - Hongtao Luo
- Department of Radiotherapy, Gansu Provincial Cancer Hospital, Lanzhou, China
| | - Ming Zhang
- Department of Radiotherapy, Gansu Provincial Cancer Hospital, Lanzhou, China
| | - Liying Gao
- Department of Radiotherapy, Gansu Provincial Cancer Hospital, Lanzhou, China
| | - Fengju Zhao
- Department of Radiotherapy, Gansu Provincial Cancer Hospital, Lanzhou, China
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Zhou S, Chen H, Yuan P, Shi N, Wang X, Hu J, Liu L. Helicobacter pylori infection promotes epithelial-to-mesenchymal transition of gastric cells by upregulating LAPTM4B. Biochem Biophys Res Commun 2019; 514:893-900. [PMID: 31084933 DOI: 10.1016/j.bbrc.2019.05.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 05/04/2019] [Indexed: 01/13/2023]
Abstract
Helicobacter pylori infection can lead to epithelial-to-mesenchymal transition (EMT) and the progression of gastric cancer (GC); however, the underlying mechanism is poorly understood. Lysosomal-associated protein transmembrane 4β (LAPTM4B) has been implicated in carcinogenesis, including in GC, and we previously showed that LAPTM4B-35 overexpression was an independent prognostic factor in GC. In this study, we demonstrate that upregulation of LAPTM4B promotes GES-1 human gastric epithelial cell proliferation, migration, and invasion and EMT. Conversely, LAPTM4B downregulation inhibited proliferation, migration, invasion, and EMT in SGC7901 GC cells. We also found that H. pylori infection enhanced LAPTM4B expression and induced EMT in GES-1 cells. Thus, EMT in GC is promoted by a combination of LAPTM4B overexpression and H. pylori infection. These results provide a basis for the development of novel two-pronged therapeutic strategies for the treatment of GC.
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Affiliation(s)
- Shengfei Zhou
- Department of Pathology, Binzhou Medical University, Yantai, Shandong Province, China
| | - Hui Chen
- Department of Pathology, Binzhou Medical University, Yantai, Shandong Province, China
| | - Peihua Yuan
- Department of Pathology, Binzhou Medical University, Yantai, Shandong Province, China
| | - Ning Shi
- Department of Gastroenterology, Binzhou Affiliated Hospital of Binzhou Medical University, Binzhou, Shandong Province, China
| | - Xiao Wang
- Department of Pathology, Binzhou Medical University, Yantai, Shandong Province, China
| | - Jinxia Hu
- Department of Molecular Biology and Biochemistry, Binzhou Medical University, Yantai, Shandong Province, China.
| | - Luying Liu
- Department of Pathology, Binzhou Medical University, Yantai, Shandong Province, China.
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Rehman Z, Fahim A, Bhatti A, Sadia H, John P. Co-expression of HIF-1α, MDR1 and LAPTM4B in peripheral blood of solid tumors. PeerJ 2019; 7:e6309. [PMID: 30746305 PMCID: PMC6368972 DOI: 10.7717/peerj.6309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022] Open
Abstract
The hypoxic tumor microenvironment is the major contributor of chemotherapy resistance in solid tumors. One of the key regulators of hypoxic responses within the cell is the hypoxia inducible factor-1α (HIF-1α) that is involved in transcription of genes promoting cell survival and chemotherapy resistance. Multidrug resistance gene-1 (MDR1) and Lysosome-associated protein transmembrane 4B-35 (LAPTM4B-35) are among those notable players which augment their responses to cellular hypoxia. MDR1 is the hypoxia responsive gene involved in multidrug resistance phenotype while LAPTM4B-35 is involved in chemotherapy resistance by stabilizing HIF-1α and overexpressing MDR1. Overexpression of HIF-1α, MDR1 and LAPTM4B has been associated with poor disease outcome in many cancers when studied individually at tissue level. However, accessibility of the tissues following the course of chemotherapy for ascertaining chemotherapy resistance is difficult and sometimes not clinically feasible. Therefore, indication of hypoxic biomarkers in patient’s blood can significantly alter the clinical outcome. Hence there is a need to identify a blood based marker to understand the disease progression. In the current study the expression of hypoxia associated chemotherapy resistance genes were studied in the peripheral blood lymphocytes of solid tumor patients and any potential correlation with disease progression were explored. The expression of HIF-1α, MDR1 and LAPTM4B was studied in blood of 72 breast, 42 ovarian, 32 colon and 21 prostate cancer patients through real time PCR analysis using delta cycle threshold method. The statistical scrutiny was executed through Fisher’s Exact test and the Spearman correlation method. There was 12–13 fold increased in expression of HIF-1α, two fold increased in MDR1 and 13–14 fold increased in LAPTM4B mRNA level in peripheral blood of breast, ovarian, prostate and colon cancer patients. In the current study there was an association of HIF-1α, MDR1 and LAPTM4B expression with advanced tumor stage, metastasis and chemotherapy treated group in breast, ovarian, prostate and colon cancer patients. The Spearman analysis also revealed a positive linear association among HIF-1α, MDR1 and LAPTM4B in all the studied cancer patients. The elevated expression of HIF-1α, MDR1 and LAPTM4B in peripheral blood of solid tumor patients can be a predictor of metastasis, disease progression and treatment response in these cancers. However, larger studies are needed to further strengthen their role as a potential biomarker for cancer prognosis.
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Affiliation(s)
- Zaira Rehman
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Ammad Fahim
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Attya Bhatti
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Hajra Sadia
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Peter John
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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9
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Hu B, Hu H, Yin M, Sun Z, Chen X, Li Y, Sun Z, Liu C, Li L, Qiu Y. Sertad1 promotes prostate cancer progression through binding androgen receptor ligand binding domain. Int J Cancer 2018; 144:558-568. [PMID: 30230528 DOI: 10.1002/ijc.31877] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 08/11/2018] [Accepted: 08/30/2018] [Indexed: 02/01/2023]
Abstract
Androgen receptor (AR) signaling is involved in the initiation and progression of prostate cancer (PCa), which is the most frequently diagnosed nonskin cancer and remains a leading cause of cancer-related death in men. Further investigation of the involvement of AR signaling in PCa progression is urgently needed. In the present study, we performed a yeast two-hybrid screen and demonstrated that SERTA domain-containing protein 1 (Sertad1) is a novel AR-binding protein that binds to the AR ligand binding domain (LBD). The binding between AR-LBD and Sertad1 was confirmed by glutathione S-transferase (GST) pull-down assays and immunoprecipitation (IP) and confocal immunofluorescence co-localization experiments. Furthermore, we demonstrated that DHT inhibited Sertad1 protein degradation in prostate cancer cell lines and that Sertad1 knockdown inhibited the proliferation of prostate cancer cells in vitro. In human PCa tumor tissues, Sertad1 expression is positively correlated with AR expression and the Gleason score. Taken together, this report is the first to show that Sertad1 is a novel AR-LBD-binding protein, and DHT-liganded AR-LBD inhibits Sertad1 degradation. Thus, Sertad1 may represent a novel therapeutic target for the treatment of AR-positive PCa.
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Affiliation(s)
- Bingqing Hu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Haidi Hu
- Department of Surgery, The First Hospital of China Medical University, Shenyang, People's Republic of China
| | - Mingzhu Yin
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, People's Republic of China
- Department of Pathology, Yale University School of Medicine, New Haven, CT
| | - Zhengrong Sun
- Virus Laboratory, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xiaoya Chen
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ying Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ziyi Sun
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Cong Liu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Ling Li
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yang Qiu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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10
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Kong F, Gao F, Chen J, Sun Y, Zhang Y, Liu H, Li X, Yang P, Zheng R, Liu G, Jia Y. Overexpressed LAPTM4B-35 is a risk factor for cancer recurrence and poor prognosis in non-small-cell lung cancer. Oncotarget 2018; 7:56193-56199. [PMID: 27486880 PMCID: PMC5302906 DOI: 10.18632/oncotarget.10907] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 06/13/2016] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The expression levels and clinical significances of Lysosomal-associated protein transmembrane-4β-35 (LAPTM4B-35) protein are unknown in the non-small-cell lung cancer (NSCLC). This study aimed to explore the expression and prognostic value of LAPTM4B-35 in NSCLC patients. METHODS The clinicopathological and survival data of 107 NSCLC patients who received radical surgery from 2007 and 2011 were reviewed. The LAPTM4B-35 expression of the paired tumors and adjacent normal specimens were detected, and the association between LAPTM4B-35 and clinical variables was explored. Kaplan-Meier analysis and Cox regression (Proportional hazard model) were performed to investigate the prognostic significance for NSCLC. RESULTS LAPTM4B-35 was over expressed in NSCLC tissues. The elevated LAPTM4B-35 expression was associated with cancer recurrence (P = 0.031). The 5-year median OS and PFS were significantly worse in the LAPTM4B-35 overexpressed group. Multivariate Cox analysis showed that LAPTM4B-35 over-expression was an independent factor for OS and PFS in NSCLC(P = 0.018, P = 0.026, respectively). CONCLUSIONS The overexpressed LAPTM4B-35 was an independent prognostic biomarker for NSCLC, which could predict cancer recurrence and poor over survival. And that may be applied as potential target for NSCLC treatment.
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Affiliation(s)
- Fanming Kong
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fangfang Gao
- Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, China
| | - Jun Chen
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yiyu Sun
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Ying Zhang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Honggen Liu
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Xiaojiang Li
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - PeiYing Yang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Rongxiu Zheng
- Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, China
| | - Geli Liu
- Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, China
| | - Yingjie Jia
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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11
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Huang B, Yin M, Li X, Cao G, Qi J, Lou G, Sheng S, Kou J, Chen K, Yu B. Migration-inducing gene 7 promotes tumorigenesis and angiogenesis and independently predicts poor prognosis of epithelial ovarian cancer. Oncotarget 2018; 7:27552-66. [PMID: 27050277 PMCID: PMC5053671 DOI: 10.18632/oncotarget.8487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/18/2016] [Indexed: 11/25/2022] Open
Abstract
Epithelial ovarian carcinomas (EOC) cause more mortality than any other cancer of the female reproductive system. New therapeutic approaches to reduce EOC mortality have been largely unsuccessful due to the poor understanding of the mechanisms underlying EOC proliferation and metastasis. Progress in EOC treatment is further hampered by a lack of reliable prognostic biomarkers for early risk assessment. In this study, we identify that Migration-Inducting Gene 7 (MIG-7) is specifically induced in human EOC tissues but not normal ovaries or ovarian cyst. Ovarian MIG-7 expression strongly correlated with EOC progression. Elevated MIG-7 level at the time of primary cytoreductive surgery was a strong and independent predictor of poor survival of EOC patients. Cell and murine xenograft models showed that MIG-7 was required for EOC proliferation and invasion, and MIG-7 enhanced EOC-associated angiogenesis by promoting the expression of vascular endothelial growth factor. Inhibiting MIG-7 by RNA interference in grafted EOC cells retarded tumor growth, angiogenesis and improved host survival, and suppressing MIG-7 expression with a small molecule inhibitor D-39 identified from the medicinal plant Liriope muscari mitigated EOC growth and invasion and specifically abrogated the expression of vascular endothelial growth factor. Our data not only reveal a critical function of MIG-7 in EOC growth and metastasis and support MIG-7 as an independent prognostic biomarker for EOC, but also demonstrate that therapeutic targeting of MIG-7 is likely beneficial in the treatment of EOC.
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Affiliation(s)
- Bihui Huang
- Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut, USA.,Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA.,Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Detroit, Michigan, USA
| | - Mingzhu Yin
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China.,Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Xia Li
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA.,Yale Stem Cell Center, Yale University, New Haven, Connecticut, USA
| | - Guosheng Cao
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Jin Qi
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Ge Lou
- Department of Gynecologic Oncology, The Affiliated Cancer Hospital of Harbin Medical University, Harbin, China
| | - Shijie Sheng
- Department of Pathology, Wayne State University, Detroit, Michigan, USA.,Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Center and Department of Oncology, Wayne State University, Detroit, Michigan, USA
| | - Junping Kou
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Kang Chen
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan, USA.,Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Detroit, Michigan, USA.,Tumor Biology and Microenvironment Program, Barbara Ann Karmanos Cancer Center and Department of Oncology, Wayne State University, Detroit, Michigan, USA.,Department of Immunology and Microbiology, Wayne State University, Detroit, Michigan, USA.,Mucosal Immunology Studies Team, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Boyang Yu
- State Key Laboratory of Natural Products and Jiangsu Key Laboratory of Traditional Chinese Medicine (TCM) Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
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12
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Cheng H, Wang W, Zhang Y, Zhang B, Cheng J, Teng P, Tang X. Expression levels and clinical significance of hepsin and HMGB1 proteins in cervical carcinoma. Oncol Lett 2017; 14:159-164. [PMID: 28693148 PMCID: PMC5494806 DOI: 10.3892/ol.2017.6116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 03/24/2017] [Indexed: 12/30/2022] Open
Abstract
This study assessed the hypothesis that the protein levels of high mobility group box 1 (HMGB1) and hepsin can be used as markers for diagnosis and prognosis in cervical carcinoma. Seventy patients with cervical cancer who were hospitalized in Xuzhou Central Hospital from May 2008 to June 2010 and underwent surgical treatment were selected for the observation group. At the same time, 20 patients with cervical benign lesions who underwent tumor stripping or accessory resection were selected for the control group. Immunohistochemical (SP) detection methods were used to detect hepsin and HMGB1 protein levels in tissues. The positive rates of HMGB1 cells in normal, paracancerous and cancerous cervical tissues were 5.0% (1/20), 22.9% (16/70) and 95.7% (67/70) (F=24.581, P=0.001) respectively. The positive rates of hepsin in normal, paracancerous and cancerous cervical tissues were respectively 10% (2/20), 61% (43/70) and 90% (63/70) (F=11.538, P=0.001). The HMGB1 expression level was related to the degree of tumor differentiation, lymph node metastasis and TNM stage (P<0.05). While the level of hepsin expression was related to the degree of tumor differentiation, invasion depth, lymph node metastasis and TNM stage (P<0.05). Furthermore, a positive correlation between the levels of hepsin and HMGB1 was found (r=15.27, P<0.05). The overall 5-year survival rates of patients with high expression of HMGB1 (+++) and low expression of HMGB1 (+ to ++) were respectively 51.2 and 29.2% (HR=11.637, 95% CI=4.351-38.213; P=0.002). The overall 5-year survival rates of patients with high hepsin expression (+++) and low hepsin expression (+ to ++) were respectively 41.3 and 35.3% (HR=10.143, 95% CI=4.285-33.275; P=0.006). Based on our results, the higher the levels of expression of hepsin and HMGB1 in tissues the higher the degree of invasiveness of the cervical cancers, and the worse the prognoses for the patient.
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Affiliation(s)
- Hui Cheng
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Weiqi Wang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Yanling Zhang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Bei Zhang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Jie Cheng
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Peng Teng
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
| | - Xin Tang
- Department of Obstetrics and Gynecology, Xuzhou Central Hospital, Xuzhou, Jiangsu 221009, P.R. China
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13
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Zhang L, Fu Z, Li X, Tang H, Luo J, Zhang D, Zhuang Y, Han Z, Yin M. Transforming growth factor β-activated kinase 1 inhibitor suppresses the proliferation in triple-negative breast cancer through TGF-β/TGFR pathway. Chem Biol Drug Des 2017; 90:450-455. [PMID: 28224764 DOI: 10.1111/cbdd.12965] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 12/27/2016] [Accepted: 02/03/2017] [Indexed: 12/01/2022]
Abstract
Breast cancer is one of the most invasive cancer types in female population. The functional activity of Transforming growth factor β-activated kinase 1 (TAK1) in breast cancer progression increasingly attracts attention as it provides a potential target for antibreast cancer drug development. However, the fundamental role of TAK1 for triple-negative breast cancer (TNBC) progression and the effect of potential anti-TAK1 drug candidate needs to be further evaluated. Herein, we focused on the role of TAK1 in human breast cancer cells, and we hypothesized that the inhibition of TAK1 activation can repress the growth of human TNBC cells. We found that the TAK1 is robustly activated within cancer cell population of clinic-derived TNBC samples and the human breast cancer cell lines in culture. Furthermore, we determined the effect of 5Z-7-oxozeaenol (5Z-O), a TAK1-specific small molecule inhibitor, on proliferation of human TNBC cell line. 5Z-O treatment significantly suppressed the proliferation of human TNBC cells. Collectively, these demonstrate the role of TAK1 in human breast cancer and the antiproliferate effect of TAK1 inhibitor. Our study sets the stage for further research on TAK1 as a promising target for development of anti-TNBC drugs and therapeutic strategies.
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Affiliation(s)
- Liangyu Zhang
- Department of Oncology, Daqing Oil Field General Hospital, Daqing City, China
| | - Zelong Fu
- Department of Breast surgery, Tianjin Central Obstetrics and Gynecology Hospital, Tianjin City, China
| | - Xia Li
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Yale Stem Cell Center, Yale University, New Haven, CT, USA
| | - Haitao Tang
- Department of Neurosurgery, Daqing Oil Field General Hospital, Daqing City, China
| | - Jiesi Luo
- Yale Stem Cell Center, Yale University, New Haven, CT, USA
| | - Dehui Zhang
- Department of Oncology, Daqing Oil Field General Hospital, Daqing City, China
| | - Yongzhi Zhuang
- Department of Oncology, Daqing Oil Field General Hospital, Daqing City, China
| | - Zhiyang Han
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingzhu Yin
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Yale Stem Cell Center, Yale University, New Haven, CT, USA
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14
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Yin M, Li X, Tan S, Zhou HJ, Ji W, Bellone S, Xu X, Zhang H, Santin AD, Lou G, Min W. Tumor-associated macrophages drive spheroid formation during early transcoelomic metastasis of ovarian cancer. J Clin Invest 2016; 126:4157-4173. [PMID: 27721235 DOI: 10.1172/jci87252] [Citation(s) in RCA: 261] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 08/30/2016] [Indexed: 12/13/2022] Open
Abstract
Tumor-associated macrophages (TAMs) can influence ovarian cancer growth, migration, and metastasis, but the detailed mechanisms underlying ovarian cancer metastasis remain unclear. Here, we have shown a strong correlation between TAM-associated spheroids and the clinical pathology of ovarian cancer. Further, we have determined that TAMs promote spheroid formation and tumor growth at early stages of transcoelomic metastasis in an established mouse model for epithelial ovarian cancer. M2 macrophage-like TAMs were localized in the center of spheroids and secreted EGF, which upregulated αMβ2 integrin on TAMs and ICAM-1 on tumor cells to promote association between tumor cells and TAM. Moreover, EGF secreted by TAMs activated EGFR on tumor cells, which in turn upregulated VEGF/VEGFR signaling in surrounding tumor cells to support tumor cell proliferation and migration. Pharmacological blockade of EGFR or antibody neutralization of ICAM-1 in TAMs blunted spheroid formation and ovarian cancer progression in mouse models. These findings suggest that EGF secreted from TAMs plays a critical role in promoting early transcoelomic metastasis of ovarian cancer. As transcoelomic metastasis is also associated with many other cancers, such as pancreatic and colon cancers, our findings uncover a mechanism for TAM-mediated spheroid formation and provide a potential target for the treatment of ovarian cancer and other transcoelomic metastatic cancers.
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15
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Meng Y, Wang L, Chen D, Chang Y, Zhang M, Xu JJ, Zhou R, Zhang QY. LAPTM4B: an oncogene in various solid tumors and its functions. Oncogene 2016; 35:6359-6365. [PMID: 27212036 PMCID: PMC5161753 DOI: 10.1038/onc.2016.189] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 04/18/2016] [Accepted: 04/18/2016] [Indexed: 01/07/2023]
Abstract
The oncogene Lysosome-associated protein transmembrane-4β (LAPTM4B) gene was identified, and the polymorphism region in the 5′-UTR of this gene was certified to be associated with tumor susceptibility. LAPTM4B-35 protein was found to be highly expressed in various solid tumors and could be a poor prognosis marker. The functions of LAPTM4B in solid tumors were also explored. It is suggested that LAPTM4B could promote the proliferation of tumor cells, boost invasion and metastasis, resist apoptosis, initiate autophagy and assist drug resistance.
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Affiliation(s)
- Y Meng
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - L Wang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - D Chen
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - Y Chang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - M Zhang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - J-J Xu
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - R Zhou
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Q-Y Zhang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
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16
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Meng F, Chen X, Song H, Lou G, Fu S. Lentivirus-mediated RNA Interference Targeting LAPTM4B Inhibits Human Ovarian Cancer Cell Invasion In Vitro. Chem Biol Drug Des 2015; 87:121-30. [PMID: 26247403 DOI: 10.1111/cbdd.12632] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/17/2015] [Accepted: 07/27/2015] [Indexed: 12/19/2022]
Abstract
LAPTM4B (lysosome-associated protein transmembrane 4 beta) play an important role in several human carcinomas. We examines the effects of RNA interference mediated downregulation of human lysosomal-associated protein transmembrane 4 beta expression on the biological behavior of the human serous adenocarcinoma cell line NIH:OVCAR3. This study investigated the expression level of lysosomal-associated protein transmembrane 4 beta in several ovarian cancer cell lines. RNA interference mediated by recombinant lentiviral vectors expressing an artificial lysosomal-associated protein transmembrane 4 beta miRNA was used to induce long-lasting downregulation of lysosomal-associated protein transmembrane 4 beta gene expression in NIH:OVCAR3 cells. Lysosomal-associated protein transmembrane 4 beta expression as well as the motility, migration potential, and proliferation of the tumor cells was measured by flow cytometry, real-time polymerase chain reaction, Western blot analysis, transwell migration assays, wound healing assays, and cell counting kit-8 assays. In addition, the cell cycle analysis utilized fluorescence-activated cell sorting. Four recombinant plasmid expression vectors encoding premiRNAs against lysosomal-associated protein transmembrane 4 beta (pcDNA-LAPTM4B-miR-1, -2, -3, and-4) were constructed and transfected into 293T cells, which overexpress lysosomal-associated protein transmembrane 4 beta. The recombinant lentiviral vector for lysosomal-associated protein transmembrane 4 beta RNA interference was packaged with pcDNA-LAPTM4B-miR-3, which had the highest interfering efficiency, thereby successfully generating stable transfectants. Compared with the control cells, the LAPTM4B-miRNA-transfected NIH:OVCAR3 cells exhibited significant decreases in cell motility and invasion. Furthermore, LAPTM4B depletion resulted in a significant decrease in proliferating cell nuclear antigen, vascular endothelial growth factor, MMP2, MMP9, and CDK12 expression. We propose that lysosomal-associated protein transmembrane 4 beta expression may be an oncogene-inducing feature of invasive ovarian cancer cells and may be a potential therapeutic target for ovarian cancer treatment.
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Affiliation(s)
- Fanling Meng
- Department of Gynecology, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, 150081, China
| | - Xiuwei Chen
- Department of Gynecology, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, 150081, China
| | - Hongtao Song
- Department of Pathology, The Affiliated Tumor Hospital, Harbin Medical University, 150 Ha Ping Road, Nangang District, Harbin, Heilongjiang Province, 150081, China
| | - Ge Lou
- Department of Gynecology, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, 150081, China
| | - Songbin Fu
- Laboratory of Medical Genetics, Harbin Medical University, 194 Xue Fu Road, Nangang District, Harbin, Heilongjiang Province, 150086, China
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17
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Huygens C, Liénart S, Dedobbeleer O, Stockis J, Gauthy E, Coulie PG, Lucas S. Lysosomal-associated Transmembrane Protein 4B (LAPTM4B) Decreases Transforming Growth Factor β1 (TGF-β1) Production in Human Regulatory T Cells. J Biol Chem 2015; 290:20105-16. [PMID: 26126825 DOI: 10.1074/jbc.m115.655340] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Indexed: 12/30/2022] Open
Abstract
Production of active TGF-β1 is one mechanism by which human regulatory T cells (Tregs) suppress immune responses. This production is regulated by glycoprotein A repetitions predominant (GARP), a transmembrane protein present on stimulated Tregs but not on other T lymphocytes (Th and CTLs). GARP forms disulfide bonds with proTGF-β1, favors its cleavage into latent inactive TGF-β1, induces the secretion and surface presentation of GARP·latent TGF-β1 complexes, and is required for activation of the cytokine in Tregs. We explored whether additional Treg-specific protein(s) associated with GARP·TGF-β1 complexes regulate TGF-β1 production in Tregs. We searched for such proteins by yeast two-hybrid assay, using GARP as a bait to screen a human Treg cDNA library. We identified lysosomal-associated transmembrane protein 4B (LAPTM4B), which interacts with GARP in mammalian cells and is expressed at higher levels in Tregs than in Th cells. LAPTM4B decreases cleavage of proTGF-β1, secretion of soluble latent TGF-β1, and surface presentation of GARP·TGF-β1 complexes by Tregs but does not contribute to TGF-β1 activation. Therefore, LAPTM4B binds to GARP and is a negative regulator of TGF-β1 production in human Tregs. It may play a role in the control of immune responses by decreasing Treg immunosuppression.
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Affiliation(s)
- Caroline Huygens
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Stéphanie Liénart
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Olivier Dedobbeleer
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Julie Stockis
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Emilie Gauthy
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Pierre G Coulie
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Sophie Lucas
- From the de Duve Institute and WELBIO, Université catholique de Louvain, 1200 Brussels, Belgium
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18
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Lysosomal-associated protein transmembrane 4 Beta-35 overexpression is a novel independent prognostic marker for gastric carcinoma. PLoS One 2015; 10:e0118026. [PMID: 25689860 PMCID: PMC4331526 DOI: 10.1371/journal.pone.0118026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Accepted: 01/06/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The purpose of this work was to analyze the relationships between the expression status of Lysosomal-associated protein transmembrane-4 beta 35 (LAPTM4B-35) in cancerous tissues and clinicopathological characteristics and prognosis of the patients with gastric carcinoma (GC). METHODS The GC samples from 157 patients in a discovery cohort and 148 patients in a testing cohort with follow-up data were used to validate the feasibility of expression of LAPTM4B-35 protein in predicting GC prognosis. Immunohistochemical staining was used to determine the expression of LAPTM4B-35 protein in precancerous gastric lesions and gastric carcinomas. The correlation between the expression of LAPTM4B-35 and clinicopathologic characteristics of patients with gastric carcinoma was analyzed using chi-square test. Univariate and multivariate analyses were performed to determine the association between LAPTM4B-35 expression and prognosis. RESULTS LAPTM4B-35 expression was increased steadily in sequential stages of precancerous gastric lesions. Positive LAPTM4B-35 expression was more frequently detected in patients with distant metastasis (P = 0.023) and III+IV TNM stages (P = 0.042) in the discovery cohort. Kaplan-Meier survival curves and univariate analysis showed that expression of LAPTM4B-35 had a significant impact on overall survival of patients with gastric carcinoma in discovery cohort (P<0.001) and testing cohort (P = 0.001). LAPTM4B-35 expression was an independent prognostic indicator for the overall survival of patients with gastric carcinoma in both cohorts. CONCLUSIONS The present research demonstrated that LAPTM4B-35 over-expression was an independent factor in gastric carcinoma prognosis. LAPTM4B gene may be a useful target of interventions slowing the progression of precancerous gastric lesions and a new therapy method to improve the prognosis of gastric carcinoma.
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Wang L, Mao Y, Du G, He C, Han S. Overexpression of JARID1B is associated with poor prognosis and chemotherapy resistance in epithelial ovarian cancer. Tumour Biol 2015; 36:2465-72. [PMID: 25663457 PMCID: PMC4428534 DOI: 10.1007/s13277-014-2859-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 11/14/2014] [Indexed: 01/01/2023] Open
Abstract
JARID1B, a histone demethylase, has been reported to be highly expressed in various human cancers. In the present study, we investigated the association of JARID1B level with epithelial ovarian cancer (EOC) and prognosis of patients with EOC. We analyzed JARID1B expression in 20 normal ovaries, 20 benign ovarian tumor (BOT) samples, and 45 epithelial ovarian carcinoma specimens by quantitative PCR (qRT-PCR) and western blotting analyses. JARID1B was further examined in 120 EOC specimens from patients with different histological stages via immunohistochemistry. Possible correlations between JARID1B levels and prognosis as well as chemotherapy resistance of EOC patients were determined by univariate and multivariate analyses. JARID1B level was significantly increased in EOC, as compared to normal ovaries and BOT. Among 120 EOC cases examined, the 5-year progression-free survival (PFS) rates were 17 and 85 % in patients with high and low JARID1B expression, respectively (hazard ratio = 17.85, 95 % confidence interval (CI) 6.31–50.51, P < 0.001). Similarly, the 5-year overall survival (OS) rates for patients with high and low JARID1B expression were 28 and 92 % respectively (hazard ratio = 21.8, 95 % CI 5.92–71.81, P < 0.001). Positive correlation between JARID1B level and chemotherapy resistance was observed in patients with EOC (odds ratio (OR) 36.81, 95 % CI 4.84–280.11, P < 0.001). JARID1B could serve as an important biomarker for prognosis and chemotherapy resistance of EOC patients.
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Affiliation(s)
- Lishuang Wang
- Department of Gynecology and Obstetrics, The Fourth Affiliated Hospital of Harbin Medical University, Yiyuan Road 37, Nangang District, Harbin, 150001, China
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CLIC1 a novel biomarker of intraperitoneal metastasis in serous epithelial ovarian cancer. Tumour Biol 2015; 36:4175-9. [PMID: 25582317 DOI: 10.1007/s13277-015-3052-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/02/2015] [Indexed: 10/24/2022] Open
Abstract
Early diagnosis of intraperitoneal metastasis is a pivot for survival of patients with serous epithelial ovarian cancers (SEOC). However, to date, there is lack of efficient molecular biomarker for early metastasis of SEOC. Here, we found that the expression of chloride intracellular channel 1 (CLIC1) is highly correlative with intraperitoneal metastasis. There is very low expression of CLIC1 in normal ovaries (NO), benign ovarian tumor (BOT), and primary ovarian cancer without metastasis (POCNM); but its expression is remarkably high in primary ovarian cancer with metastasis (POCM) omentum and peritoneal metastasis. Furthermore, for clinic prediction of intraperitoneal metastasis of SEOC, the sensitivity and specificity of CLIC1 overexpression were 97.4 and 88.1 %, respectively. Collectively, CLIC1 may be a potential sensitive and specific molecular biomarker for early diagnose for SEOC metastasis.
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Overexpression of LAPTM4B is correlated with tumor angiogenesis and poor prognosis in non-small cell lung cancer. Med Oncol 2014; 31:974. [PMID: 24816841 DOI: 10.1007/s12032-014-0974-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 04/18/2014] [Indexed: 01/28/2023]
Abstract
Lysosome-associated protein transmembrane-4 beta (LAPTM4B) is a novel oncogene, which has been indicated to be dramatically overexpressed in various malignant tumors. The aims of this study were to detect LAPTM4B protein expression in patients with non-small cell lung cancer (NSCLC) and then analyze the relationships of LAPTM4B protein with clinicopathologic factors, tumor angiogenesis and prognosis with SPSS statistical software. Immunohistochemistry was used to examine the expression of LAPTM4B and CD34 proteins in NSCLC tissues, and its results showed that LAPTM4B protein expression in NSCLC tissues was significantly higher than that in normal lung tissues (P < 0.001). Of the186 NSCLC cases, 129 (69.35 %) had strong expression of LAPTM4B protein, which was associated with histopathologic differentiation (P = 0.017), lymph node metastasis (P = 0.001) and TNM stage (P = 0.046), as well as the microvessel density (MVD) (P = 0.019). Kaplan-Meier survival analysis revealed that patients with strong LAPM4B protein expression and high MVD might have poor overall survival (OS; P = 0.001, P = 0.002, respectively) and disease-free survival (DFS; P = 0.002, P = 0.038, respectively). Multivariate analysis demonstrated that LAPTM4B protein was an independent prognostic marker for OS and DFS of NSCLC patients (P = 0.037, P = 0.046, respectively). These findings illustrated that LAPTM4B protein was closely associated with NSCLC progression, angiogenesis and poor prognosis, suggesting that LAPTM4B protein could be applied not only in predicting patient's outcome, but also in antiangiogenic therapy as a possible novel target molecule.
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Yang H, Zhai G, Ji X, Xiong F, Su J, McNutt MA. Correlation of LAPTM4B polymorphisms with gallbladder carcinoma susceptibility in Chinese patients. Med Oncol 2013; 29:2809-13. [PMID: 22302286 DOI: 10.1007/s12032-012-0173-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 01/19/2012] [Indexed: 11/30/2022]
Abstract
Gallbladder carcinoma (GBC) is a malignancy with an extremely poor prognosis. In order to improve the survival rate, identification of new susceptibility risk factors is of importance. Here, we report findings on the novel cancer-related gene lysosomal protein transmembrane 4 beta (LAPTM4B) that has two alleles designated LAPTM4B*1 and LAPTM4B*2. Allele *1 differs from allele *2 in that it contains one copy of a 19-bp sequence, whereas this sequence is duplicated in exon 1 of allele *2. This study aimed to investigate the relationship of LAPTM4B allelic variation and GBC susceptibility. LAPTM4B genotype was analyzed in 155 healthy individuals and 91 GBC patients by PCR, and the genotypic distribution of LAPTM4B was analyzed with the chi-squared test. The frequency of allele *2 was 37.9 and 24.8% in the GBC and the control groups, respectively, representing a significant difference between these two groups (P<0.001). LAPTM4B allele *2 may be a risk factor associated with genetic susceptibility to GBC.
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Affiliation(s)
- Hua Yang
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, and Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China.
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Jia C, Li X, Sun H, Sui L. Over-expression of the overexpressed in lung cancer 1 is associated with poor prognosis in epithelial ovarian cancer. J Surg Oncol 2013; 107:847-52. [PMID: 23609236 DOI: 10.1002/jso.23336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 02/27/2013] [Indexed: 01/15/2023]
Abstract
BACKGROUND The overexpressed in lung cancer 1 (OLC1), a novel tumor associated gene, is upregulated in several carcinomas. The purpose of this study was to determine whether increased expression of OLC1 is associated with epithelial ovarian carcinoma (EOC) that diagnosed in patients. METHODS OLC1 expression was assayed in 20 normal ovarian and 139 ovarian cancer's specimens by Western blotting and immunohistochemical staining (IHC). Univariate and multivariate analysis were performed to determine the association between OLC1 expression and prognosis. RESULTS Western blotting analysis demonstrated that OLC1 was overexpressed in ovarian cancers, and immunohistochemistry results revealed that 63 patients had increased level of OLC1. The 5-year overall survival (OS) rates of patients with high OLC1 expression and low OLC1 expression were 24.8% and 75.2%, respectively (hazard ratio: 21.43, 95% CI: 2.54, 7.12, P < 0.0001). The 5-year progression-free survival (PFS) rates were 30.1% for patients in the high-expression group and 69.9% for patients in the low OLC1 expression group (hazard ratio: 17.04, 95% CI: 0.33, 5.96, P < 0.0001). CONCLUSIONS OLC1 over-expression is an important factor in epithelial ovarian carcinoma prognosis and can be a potential biomarker for ovarian carcinoma.
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Affiliation(s)
- Changru Jia
- Department of Gynecology Oncology, Affiliated Tumor Hospital of Harbin Medical University, Harbin, China
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Meng F, Li H, Zhou R, Luo C, Hu Y, Lou G. LAPTM4B gene polymorphism and endometrial carcinoma risk and prognosis. Biomarkers 2013; 18:136-43. [PMID: 23312008 DOI: 10.3109/1354750x.2012.752526] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A novel gene called LAPTM4B (lysosome-associated protein transmembrane 4 beta) plays several crucial roles in carcinogenesis. In this case-control study, we investigated the relationship between LAPTM4B gene polymorphism and susceptibility to endometrial carcinoma (EC). In an adjusted multivariate logistic regression analyses, subjects with the LAPTM4B*1/2 and *2/2 genotypes respectively exhibited 1.572-fold (95% confidence interval (CI) = 1.041-2.375) and 2.335-fold (95% CI = 1.365-3.995) increases in the risk of developing EC relative to those carrying LAPTM4B*1/1. Patients with LAPTM4B *2 had both significantly shorter overall survival (OS) and shorter disease-free survival (DFS) (both p < 0.001). Multivariate analysis showed that LAPTM4B genotype is an independent prognostic factor for OS and DFS (both p < 0.001). These results suggest that LAPTM4B polymorphisms might play an important role in the aetiology of EC.
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Affiliation(s)
- Fanling Meng
- Department of Gynaecology, The Affiliated Tumour Hospital, Harbin Medical University, Harbin, China
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LAPTM4B overexpression is a novel independent prognostic marker for metastatic ovarian tumors. Int J Gynecol Cancer 2012; 22:54-62. [PMID: 22193644 DOI: 10.1097/igc.0b013e318234f9ac] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Metastatic ovarian tumors are a series of lethal carcinomas that almost always have bad prognosis. Their prognoses, however, vary depending on the primary tumor malignancies of each. It has been reported that LAPTM4B, a novel tumor-associated gene, might indicate a worse prognosis when it was overexpressed in other carcinomas. Therefore, the authors expected to investigate whether LAPTM4B overexpression is an independent prognostic marker in metastatic ovarian tumors. METHODS Immunohistochemistry was used to assess LAPTM4B expression in metastatic ovarian tumors from 102 patients. Subsequently, univariate and multivariate survival analyses with Cox regression were performed to determine the association between LAPTM4B expression and prognosis. To identify any differences in prognosis between the 2 groups of patients with differing primary malignancies, the log-rank test was used. RESULTS The median overall and progression-free survival rates of patients with tumors of gastrointestinal tract origin were 0.97 and 0.51 years, respectively, and both were statistically significantly lower than those of patients with tumors of breast origin (P < 0.0001), which were 2.68 and 1.96 years, accordingly. Of 102 patients, 77 were classified as having a high expression of LAPTM4B, and LAPTM4B expression had a significant association with the prognosis of metastatic ovarian tumors (P < 0.01); no statistically significant interaction between LAPTM4B expression and primary malignancies was detected (P > 0.1). On the other hand, medians of overall survival and progression-free survival of patients with tumors of gastrointestinal tract origin were significantly lower than those of patients with tumors of breast origin (P < 0.0001). CONCLUSIONS Patients with metastatic ovarian tumors of breast origin had significantly better prognosis than those with the disease from gastrointestinal tract primary malignancies. LAPTM4B overexpression might be an independent prognostic marker of metastatic ovarian tumors.
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LAPTM4B allele *2 is associated with breast cancer susceptibility and prognosis. PLoS One 2012; 7:e44916. [PMID: 22984585 PMCID: PMC3440355 DOI: 10.1371/journal.pone.0044916] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 08/09/2012] [Indexed: 11/19/2022] Open
Abstract
Background Lysosome-associated protein transmembrane 4 beta (LAPTM4B) has two alleles named LAPTM4B*1 and LAPTM4B*2. Allele *1 contains only one copy of a 19-bp sequence at the 5′UTR in the first exon, whereas this sequence of allele*2 is duplicated and arrayed as a tandem repeat. Previous studies revealed that LAPTM4B polymorphisms contribute to the risk of certain types of cancers. This study aimed to investigate the polymorphism of LAPTM4B in breast cancer by analysis the correlation of LAPTM4B genotype with breast cancer susceptibility, clinicopathologic features and prognosis. Methods Genotyping of the LAPTM4B polymorphism was determined by PCR method. The expression levels of LAPTM4B in breast cancer tissues and breast cancer cell lines were determined by quantitative reverse-transcription PCR (qRT-PCR) analysis. The correlation of LAPTM4B genotype with clinicopathologic parameters and prognosis were assessed statistically. Results The results of qRT-PCR analysis indicated that LAPTM4B*2 was associated with the higher level of LAPTM4B expression compared with the LAPTM4B*1 in both breast cancer cell lines and breast cancer tissues. We found that LAPTM4B*2 was associated with an increased risk for breast cancer. LAPTM4B*2 was significantly associated with higher histopathologic grade, lymph node metastasis and poor prognosis. Conclusion LAPTM4B*2 is a risk factor associated with breast cancer susceptibility and poor prognosis. LAPTM4B*2 may be a potential predicative marker for the susceptibility, progression and metastasis of breast cancer.
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Zhai G, Yan K, Ji X, Xu W, Yang J, Xiong F, Su J, McNutt MA, Yang H. LAPTM4B allele *2 is a marker of poor prognosis for gallbladder carcinoma. PLoS One 2012; 7:e45290. [PMID: 22984631 PMCID: PMC3440336 DOI: 10.1371/journal.pone.0045290] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 08/14/2012] [Indexed: 12/15/2022] Open
Abstract
Background Lysosomal protein transmembrane 4 beta (LAPTM4B) is a novel cancer-related gene which has two alleles designated LAPTM4B*1 and LAPTM4B*2. In this study we investigated the correlation of LAPTM4B genotype with prognosis and clinicopathologic features in patients who had undergone curative resection for gallbladder carcinoma (GBC). Methodology/Principal Findings PCR assay was performed to determine the LAPTM4B genotype in 85 patients. The correlation of LAPTM4B genotype with clinicopathologic parameters was assessed with the Chi-squared test. Differences in patient survival were determined by the Kaplan–Meier method. Multivariate analysis of prognostic factors was carried out with Cox regression analysis. Patients with LAPTM4B *2 had both significantly shorter overall survival (OS) and shorter disease-free survival (DFS) (both P<0.001). Multivariate analysis showed that LAPTM4B genotype is a prognostic factor for OS and DFS (both P<0.001). Conclusions/Significance LAPTM4B allele *2 is a risk factor associated with poor prognosis in patients with resected GBC, and LAPTM4B status may be therefore be useful preoperatively as an adjunct in evaluation of the operability of GBC.
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Affiliation(s)
- Guojun Zhai
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Kaowen Yan
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Xiaoxu Ji
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - Wenrui Xu
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Jiuling Yang
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Fuxia Xiong
- Department of Pharmacology, Loma Linda University, Loma Linda, California, United States of America
| | - Jing Su
- Department of Pathology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Michael A. McNutt
- Department of Pathology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Hua Yang
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China
- * E-mail:
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Kang Y, Yin M, Jiang W, Zhang H, Xia B, Xue Y, Huang Y. Overexpression of LAPTM4B-35 is associated with poor prognosis in colorectal carcinoma. Am J Surg 2012; 204:677-83. [PMID: 22578410 DOI: 10.1016/j.amjsurg.2012.02.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 02/27/2012] [Accepted: 02/27/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND The purpose of this study was to determine whether lysosome-associated protein transmembrane-4 beta (LAPTM4B) overexpression is associated with the prognosis in patients with colorectal cancer. METHODS LAPTM4B expression was evaluated in colorectal cancer patients by Western blot analysis and immunohistochemistry. Univariate and multivariate analyses were performed to determine the association between LAPTM4B expression and prognosis. RESULTS Among the 136 patients with colorectal cancer, 51 patients had low LAPTM4B expression, and 85 patients had high LAPTM4B expression. The sensitivity and specificity of LAPTM4B overexpression were 62.5% and 100%, respectively. The 5-year overall survival (OS) rates for patients with high and low LAPTM4B expression were 37.38% and 98.04%, respectively (hazard ratio = 22.774; 95% confidence interval [CI], 5.287-98.091; P < .0001). The 5-year disease-free survival rate was 21.15% for patients in the high-expression group and 91.82% for patients in the low-expression group (hazard ratio = 11.674; 95% CI, 3.562-38.263; P < .0001). CONCLUSIONS LAPTM4B overexpression is an independent factor in colorectal cancer prognosis, and it may be an important potential biomarker.
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Affiliation(s)
- Yue Kang
- Department of General Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Yang H, Zhai G, Ji X, Xiong F, Su J, McNutt MA. LAPTM4B allele *2 is a marker of poor prognosis following hepatic tumor resection for hepatocellular carcinoma. PLoS One 2012; 7:e34984. [PMID: 22509374 PMCID: PMC3318008 DOI: 10.1371/journal.pone.0034984] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 03/12/2012] [Indexed: 01/26/2023] Open
Abstract
Background Lysosomal protein transmembrane 4 beta (LAPTM4B) is a gene related to hepatocellular carcinoma that has two alleles designated LAPTM4B*1 and LAPTM4B*2. This study aimed to investigate the correlation of LAPTM4B genotype with prognosis and clinicopathologic features in patients who have undergone resection for hepatocellular carcinoma (HCC). Methodology/Principal Findings The LAPTM4B genotype was analyzed by PCR in 68 patients who had undergone curative hepatic resection for hepatocellular carcinoma. The correlation of LAPTM4B genotype with clinicopathologic parameters was assessed with the Chi-squared test. Differences in patient survival were determined by the Kaplan–Meier method. Multivariate analysis of prognostic factors was carried out with Cox regression analysis. Patients with LAPTM4B *2 had both significantly shorter overall survival (OS) and shorter disease-free survival (DFS) (both P<0.001). Multivariate analysis showed that LAPTM4B genotype is an independent prognostic factor for OS and DFS (both P<0.001). Conclusions/Significance Allele *2 of LAPTM4B is a risk factor associated with poor prognosis in patients with resected HCC. LAPTM4B status may be useful preoperatively as an adjunct in evaluation of the operability of HCC.
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Affiliation(s)
- Hua Yang
- Department of Cell Biology, School of Basic Medical Sciences, Peking University, Beijing, China.
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Xu Y, Liu Y, Zhou R, Meng F, Gao Y, Yang S, Li X, Yang M, Lou G. LAPTM4B polymorphisms is associated with ovarian cancer susceptibility and its prognosis. Jpn J Clin Oncol 2012; 42:413-9. [PMID: 22412199 DOI: 10.1093/jjco/hys026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Lysosome-associated protein transmembrane 4 beta (LAPTM4B) is an important novel gene associated with the proliferation and differentiation of cells. Recent studies have shown that it was overexpressed in many cancer tissues. This study investigated the association between different LAPTM4B polymorphisms and the susceptibility and prognosis of ovarian cancer. METHODS A case-control study was performed in 282 patients with ovarian cancer and 365 control subjects. Genomic DNA was extracted from peripheral blood lymphocytes in all participants. LAPTM4B genotypes were determined using polymerase chain reaction. RESULTS There was a significantly higher LAPTM4B 2 allele frequency in ovarian cancer cases than controls (P < 0.05). Using the LAPTM4B 1/1 genotype as the reference, we found that the LAPTM4B 1/2 and LAPTM4B 2/2 genotypes were positively associated with ovarian cancer. Additionally, we found a negative correlation between the tumor grade and LAPTM4B allele genotype, which indicates strongly that LAPTM4B 2 could affect the survival of patients. CONCLUSIONS These findings indicate that the LAPTM4B 2 allele may be a risk factor for ovarian cancer and may play an important role in genetic susceptibility to ovarian cancer.
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Affiliation(s)
- Ye Xu
- Department of Gynecology, The Affiliated Tumor Hospital, Harbin Medical University, Harbin 150081, China
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Wang S, Zhang QY, Zhou RL. Relationship between LAPTM4B gene polymorphism and susceptibility of primary liver cancer. Ann Oncol 2011; 23:1864-9. [PMID: 22156622 DOI: 10.1093/annonc/mdr538] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Lysosome associated protein transmembrane 4 beta (LAPTM4B) was identified first as a novel gene overexpressed in human hepatocellular carcinoma. LAPTM4B*1 and LAPTM4B*2 are two alleles of the gene; they are differentiated at 5'UTR in the first exon. Allele *1 contains only one copy of a 19-bp sequence in the 5'UTR. However, allele *2 contains another identical 19-bp sequence following the first one tightly. In this case-control study, we aimed to identify the relationship between LAPTM4B gene polymorphism and the susceptibility of primary liver cancer. MATERIALS AND METHODS The case-control study was conducted in China, including 303 primary liver cancer cases and 515 controls. LAPTM4B gene polymorphism was determined by PCR. Statistical analysis includes odds ratio (OR) and 95% confidence interval (CI) calculations using unconditional logistic regression. RESULTS We found a significant difference in the frequency of LAPTM4B*2 between cases and controls (P<0.05). Our study showed that LAPTM4B*1/2 and *2/2 were associated with a significantly increased risk of primary liver cancer compared with LAPTM4B*1/1 (OR=1.898, 95% CI=1.387-2.598 and OR=2.483, 95% CI=1.480-4.168, respectively). The genotypes of LAPTM4B in this study have negative correlation with the clinicopathologicals observed. CONCLUSION The evidences suggest that gene polymorphism of LAPTM4B may influence the individuals' susceptibility to primary liver cancer and allele *2 being considered as a potential risk factor.
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Affiliation(s)
- S Wang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
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A role for the ubiquitin ligase Nedd4 in membrane sorting of LAPTM4 proteins. PLoS One 2011; 6:e27478. [PMID: 22096579 PMCID: PMC3214061 DOI: 10.1371/journal.pone.0027478] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 10/18/2011] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The lysosome associated protein transmembrane (LAPTM) family is comprised of three members: LAPTM5, LAPTM4a and LAPTM4b, with the latter previously shown to be overexpressed in numerous cancers. While we had demonstrated earlier the requirement of the E3 ubiquitin ligase Nedd4 for LAPTM5 sorting to lysosomes, the regulation of sorting of LAPTM4 proteins is less clear. METHODOLOGY/PRINCIPAL FINDINGS Here we show that LAPTM4a and LAPTM4b are localized to the lysosome, but unique to LAPTM4b, a fraction of it is present at the plasma membrane and its overexpression induces the formation of actin-based membrane protrusions. We demonstrate that LAPTM4s, like LAPTM5, are able to co-immunoprecipitate with the E3 ubiquitin ligase Nedd4, an interaction that is dependent on LAPTM4 PY motifs and plays a role in membrane sorting. Accordingly, in Nedd4 knockout mouse embryonic fibroblasts (MEFs), LAPTM4a and LAPTM4b show reduced lysosomal localization. Moreover, lack of PY motifs leads to enhanced missorting of LAPTM4b to the plasma membrane instead of the lysosome. CONCLUSIONS/SIGNIFICANCE These results suggest that while some requisites of LAPTM5 lysosomal sorting are conserved among LAPTM4 proteins, LAPTM4a and LAPTM4b have also developed distinct sorting requirements.
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Burnichon N, Vescovo L, Amar L, Libé R, de Reynies A, Venisse A, Jouanno E, Laurendeau I, Parfait B, Bertherat J, Plouin PF, Jeunemaitre X, Favier J, Gimenez-Roqueplo AP. Integrative genomic analysis reveals somatic mutations in pheochromocytoma and paraganglioma. Hum Mol Genet 2011; 20:3974-85. [DOI: 10.1093/hmg/ddr324] [Citation(s) in RCA: 233] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Yin M, Li C, Li X, Lou G, Miao B, Liu X, Meng F, Zhang H, Chen X, Sun M, Ling Q, Zhou R. Over-expression of LAPTM4B is associated with poor prognosis and chemotherapy resistance in stages III and IV epithelial ovarian cancer. J Surg Oncol 2011; 104:29-36. [PMID: 21416470 DOI: 10.1002/jso.21912] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 02/23/2011] [Indexed: 11/11/2022]
Abstract
BACKGROUND The purpose of this study was to determine whether LAPTM4B over-expression is associated with the prognosis and chemotherapy resistance in patients with stages III and IV epithelial ovarian carcinoma, i.e., patients with peritoneal metastasis or lymph node metastasis of epithelial ovarian carcinoma. METHODS LAPTM4B expression was evaluated in 10 normal ovarian and 113 stages III-IV ovarian carcinomas specimens by Western blotting analyses and immunohistochemistry. Univariate and multivariate analyses were performed to determine the association between LAPTM4B expression and prognosis and the relationship between LAPTM4B over-expression and chemotherapy resistance. RESULTS Western blotting analysis demonstrated that LAPTM4B was overexpressed in ovarian cancers, and immunohistochemistry results revealed that 80 patients were LAPTM4B over-expression. The five-year overall survival (OS) rates for patients with high LAPTM4B expression and low LAPTM4B expression were 27.36% and 90.7%, respectively (hazard ratio = 20.611, 95% CI: 5.916-71.808, P < 0.0001). The five-year progression-free survival (PFS) rate was 17.68% for patients in the high-expression group and 84.42% for patients in the low-expression group (hazard ratio = 17.852, 95% CI: 6.31-5.935, P < 0.0001); The presence of chemotherapy resistance was significantly associated with LAPTM4B expression (OR: 36.609, 95% CI: 4.737-282.941, P = 0.0006). CONCLUSIONS LAPTM4B over-expression is an independent factor in stages III-IV epithelial ovarian carcinoma prognosis and chemotherapy resistance, and it may be an important potential biomarker.
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Affiliation(s)
- Mingzhu Yin
- Department of Gynecology Oncology, The Tumor Hospital of Harbin Medical University, Harbin, China
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