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Huang H, Zhang J, Ling F, Huang Y, Yang M, Zhang Y, Wei Y, Zhang Q, Wang H, Song L, Wu Y, Yang J, Tang J. Leptin Receptor (LEPR) promotes proliferation, migration, and invasion and inhibits apoptosis in hepatocellular carcinoma by regulating ANXA7. Cancer Cell Int 2021; 21:4. [PMID: 33397392 PMCID: PMC7784271 DOI: 10.1186/s12935-020-01641-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/01/2020] [Accepted: 11/02/2020] [Indexed: 02/08/2023] Open
Abstract
Background Leptin Receptor (LEPR) has been suggested to have several roles in cancer metastasis. However, the role of LEPR and its underlying mechanisms in lymphatic metastasis of hepatocarcinoma have not yet been studied. Methods We performed bioinformatics analysis, qRT-PCR, western blotting, immunohistochemistry, immunofluorescence, enzyme-linked immunosorbent, coimmunoprecipitation assays and a series of functional assays to investigate the roles of LEPR in hepatocellular carcinoma. Results We discovered that LEPR was highly expressed in liver cancer tissues, and the expression of LEPR in Hca-F cells was higher than that in Hca-P cells. Furthermore, LEPR promotes the proliferation, migration and invasion and inhibits the apoptosis of hepatocarcinoma lymphatic metastatic cells. Further studies indicated that LEPR interacts with ANXA7. Mechanistically, LEPR regulated ERK1/2 and JAK2/STAT3 expression via ANXA7 regulation. Conclusions These findings unveiled a previously unappreciated role of LEPR in the regulation of lymphatic metastatic hepatocellular carcinoma, assigning ANXA7-LEPR as a promising therapeutic target for liver cancer treatments.
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Affiliation(s)
- He Huang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China.,Department of Pathology, Tangshan People's Hospital, 65 Shengli Road, Tangshan, 063001, Hebei, China
| | - Jun Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Fei Ling
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yuhong Huang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Min Yang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yao Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Yuanyi Wei
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Qingqing Zhang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Honghai Wang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Lin Song
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, 94158, USA
| | - Ying Wu
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Jiayu Yang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China
| | - Jianwu Tang
- Department of Pathology, College of Basic Medical Sciences, Dalian Medical University, 9 W. Lushun South Road, Dalian, 116044, Liaoning, China.
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Long Noncoding RNAs Coregulated by Annexin A7 and JNK in Hepatocellular Carcinoma Cells Identified by Whole-Genome Expression Profiling. BIOMED RESEARCH INTERNATIONAL 2020; 2020:5747923. [PMID: 32775428 PMCID: PMC7399738 DOI: 10.1155/2020/5747923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/19/2020] [Accepted: 07/08/2020] [Indexed: 12/31/2022]
Abstract
Knockdown of Annexin A7 (ANXA7) or C-Jun N-terminal kinase (JNK) inhibits the proliferation, migration, invasion, and lymphatic adhesion of hepatocellular carcinoma (HCC) cells, suggesting that ANXA7 and JNK signaling pathways contribute to HCC growth and lymph node metastasis (LNM). While the intervening molecular pathways are largely unknown, emerging evidence suggests that long noncoding RNAs (lncRNAs) participate in ANXA7 and JNK signaling. To identify potential therapeutic targets for HCC, we screened for lncRNAs differentially expressed among Hca-P cells stably expressing shRNA-ANXA7, shRNA-JNK, or control-shRNA. RNA sequencing identified 216 lncRNAs differentially expressed between shRNA-ANXA7 and control-shRNA cells, of which 101 were downregulated and 115 upregulated, as well as 436 lncRNAs differentially expressed between shRNA-JNK and control-shRNA cells, of which 236 were downregulated and 200 upregulated. Fifty-six lncRNAs were differentially expressed under both ANXA7 and JNK knockdown. We selected 4 of these for verification based on putative involvement in cancer regulation according to GO and KEEG analyses of target genes. Knockdown of ANXA7 or JNK suppressed expression of NONMMUT012084.2, NONMMUT024756.2, and ENSMUST00000130486, and enhanced expression of ENSMUST00000197932. These lncRNAs are intriguing candidate targets for mechanistic analysis of HCC progression and therapeutic intervention.
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Wang J, Huang Y, Zhang J, Xing B, Xuan W, Wang H, Huang H, Yang J, Tang J. High co-expression of the SDF1/CXCR4 axis in hepatocarcinoma cells is regulated by AnnexinA7 in vitro and in vivo. Cell Commun Signal 2018; 16:22. [PMID: 29783989 PMCID: PMC5963093 DOI: 10.1186/s12964-018-0234-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/15/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND SDF1/CXCR4 and AnnexinA7 play important roles in many physiological and pathological conditions, but the molecular association between them in cancer cells has not been studied thus far. METHODS The expression changes of SDF1/CXCR4 were detected by gene transcriptome sequencing, qRT-PCR, Western blotting, cytoimmunofluorescence and immunohistochemistry in mouse hepatocarcinoma F/P cells, AnnexinA7 downregulated expression F (FA7DOWN) cells, AnnexinA7 overexpression P (PA7UP) cells, AnnexinA7 unrelated sequence F (FSHUS) cells, empty vector P (PNCEV) cells and normal liver cells in vitro and in vivo. RESULTS SDF1 and CXCR4 were co-expressed in hepatocarcinoma cells. SDF1 was localized mainly in the cytoplasm of cells, while CXCR4 was mainly localized in the cell membrane. Both in vitro and in vivo, expression levels of SDF1/CXCR4 in F and P cells were higher than in normal liver cells, and expression levels of SDF1/CXCR4 in F cells with high lymphatic metastatic potential were higher than those in P cells with low lymphatic metastatic potential. Expression of SDF1 was higher than that of CXCR4 in P cells and normal liver cells, while expression of CXCR4 was higher than that of SDF1 in F cells. Expression levels of SDF1/CXCR4 were completely consistent with AnnexinA7 regulation. After the AnnexinA7 gene was downregulated or upregulated, expression levels of SDF1/CXCR4 in FA7DOWN/PA7UP cells were lower or higher than those in FSHUS/PNCEV cells. Furthermore, CXCR4 was more sensitively modulated by AnnexinA7 regulation than SDF1. CONCLUSIONS High co-expression of SDF1/CXCR4 is a molecular characteristic of hepatocarcinoma cells, especially those with high lymphatic metastatic potential. AnnexinA7 positively regulates expression levels of SDF1/CXCR4, in particular CXCR4, and AnnexinA7 is a functional regulator of SDF1/CXCR4.
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Affiliation(s)
- Jingwen Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Jun Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Boyi Xing
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Wei Xuan
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - Honghai Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | - He Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China
| | | | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, 9 West, Lvshun Southern Road, Dalian, 116044, Liaoning, China.
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Bakheet AMH, Mahmoud SA, Huang Y, Zhang J, Wang J, Wei Y, Gamallat Y, Awadasseid A, Owusu L, Khidir Y, Wang L, Zhou S, Seewooruttun PK, Xin B, Xuan W, Su Z, Tang J. Ezrin as a possible diagnostic and/or prognostic biomarker in mice lymphatic metastatic hepatocellular carcinoma in vivo. Biofactors 2017; 43:662-672. [PMID: 28608644 DOI: 10.1002/biof.1368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) ranks in the top of cancers leading to death. Early diagnosis is the big challenge in the case of HCC. Our in vitro study showed that Ezrin expression in lymphatic metastasis hepatocellular carcinoma (LNM-HCC) was associated with the metastatic rate. Here we aim to evaluate Ezrin expression as diagnostic and/or prognostic biomarker of LNM-HCC in mice. Chinese inbred 615 mice, Hca-F and Hca-P cell lines were used in the study. Histological changes were determined by Hematoxylin and Eosin, while Ezrin expression was assessed by qRT-PCR, western blot, immunohistochemistry, and enzyme-linked immunosorbent assay. Ezrin expression in this study gives credit to our in vitro study which Ezrin expression was positively correlated with LNM-HCC and negatively with Annexin7 (A7) expression. The highest histological changes were observed in high metastatic primary/secondary tumors combined with high Ezrin expression. Ezrin and A7 are higher in total primary tumors than in total secondary tumors (P = 0.0001, P = 0.021), respectively. Ezrin expression was enhanced in Hca-P A7 down-regulated primary/secondary tumors (P = 0.004), whereas, Ezrin expression was suppressed in Hca-F A7 upregulated primary/secondary tumors. Serum ELISA indicated differential expression of Ezrin among the study groups (P ≤ 0.0001). Ezrin expression was higher in NC-Hca-F than NC-Hca-P (P ≤ 0.0001), suppressed in Hca-F A7 upregulation (P ≤ 0.0001) and in enhanced in Hca-P A7 down-regulation (P = 0.0001). In conclusion, Ezrin level may serve as a differential diagnostic and/or prognostic biomarker for high and low LNM-HCC and may be beneficial in the diagnosis of HCC disease. © 2017 BioFactors, 43(5):662-672, 2017.
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Affiliation(s)
- Ahmed Musa Hago Bakheet
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Salma Abdi Mahmoud
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jun Zhang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jingwen Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuanyi Wei
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yaser Gamallat
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Annoor Awadasseid
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Lawrence Owusu
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yousra Khidir
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Li Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Shuting Zhou
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Pawan Kumar Seewooruttun
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Boyi Xin
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Wei Xuan
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Zhen Su
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jianwu Tang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
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Gao Y, Wang Z, Hao Q, Li W, Xu Y, Zhang J, Zhang W, Wang S, Liu S, Li M, Xue X, Zhang W, Zhang C, Zhang Y. Loss of ERα induces amoeboid-like migration of breast cancer cells by downregulating vinculin. Nat Commun 2017; 8:14483. [PMID: 28266545 PMCID: PMC5344302 DOI: 10.1038/ncomms14483] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/20/2016] [Indexed: 12/16/2022] Open
Abstract
Oestrogen receptor alpha (ERα) is a well-known target of endocrine therapy for ERα-positive breast cancer. ERα-negative cells, which are enriched during endocrine therapy, are associated with metastatic relapse. Here we determine that loss of ERα in the invasive front and in lymph node metastasis in human breast cancer is significantly correlated with lymphatic metastasis. Using in vivo and in vitro experiments, we demonstrate that ERα inhibits breast cancer metastasis. Furthermore, we find that ERα is a novel regulator of vinculin expression in breast cancer. Notably, ERα suppresses the amoeboid-like movement of breast cancer cells by upregulating vinculin in 3D matrix, which in turn promotes cell–cell and cell–matrix adhesion and inhibits the formation of amoeboid-like protrusions. A positive association between ERα and vinculin expression is found in human breast cancer tissues. The results show that ERα inhibits breast cancer metastasis and suggest that ERα suppresses cell amoeboid-like movement by upregulating vinculin. Estrogen receptor alpha (ERα)-negative cells, which are enriched during endocrine therapy, are associated with metastatic relapse of breast cancer. Here the authors show that ERα inhibits breast cancer metastasis and suggest that ERα suppresses the amoeboid-like migration of breast cancer cells by upregulating vinculin.
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Affiliation(s)
- Yuan Gao
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Zhaowei Wang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Qiang Hao
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Weina Li
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Yujin Xu
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Juliang Zhang
- Department of Vascular and Endocrine Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an 710032, China
| | - Wangqian Zhang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Shuning Wang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Shuo Liu
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Meng Li
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Xiaochang Xue
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Wei Zhang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Cun Zhang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
| | - Yingqi Zhang
- State Key Laboratory of Cancer Biology, Biotechnology Center, School of Pharmacy, The Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, China
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Jiang Z, Han B, Liu W, Peng Y. Evaluation on biological compatibility of carboxymethyl chitosan as biomaterials for antitumor drug delivery. J Biomater Appl 2017; 31:985-994. [DOI: 10.1177/0885328216688337] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Carboxymethyl-chitosan, a water-soluble derivative of chitosan, has emerged as a promising candidate for biomedical applications due to its excellent water solubility, biodegradation, biocompatibility, hydrating, antimicrobial, and nontoxicity. In this paper, the antitumor proliferation and metastasis was studied in vitro and in vivo to evaluate biocompatibility of carboxymethyl-chitosan as biomaterials for antitumor drug delivery. The results showed that carboxymethyl-chitosan could significantly reduce the clone formation and tumor migration of human cancer cells including kidney cancer cell line OS-RC-2, gastric cancer cell line SGC-7901, colon cancer cell line HT-29, and nonsmall cell lung cancer cell line NCI-H1650 in vitro. Through Lewis tumor-bearing C57BL/6 mouse model, carboxymethyl-chitosan was proved to be able to inhibit solid tumor growth and tumor metastasis to the liver and lung, meanwhile increase the level of tissue inhibitor of metalloproteinase 1 and E-cadherin, and decrease the level of mice blood serum matrix metalloproteinase 9. This study suggested that carboxymethyl-chitosan had certain antimetastasis effect and good biocompatibility and may have a potential application as a synergic antitumor reagent.
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Affiliation(s)
| | - Baoqin Han
- Ocean University of China, Qingdao, China
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Hago AM, Gamallat Y, Mahmoud SA, Huang Y, Zhang J, Mahmoud YK, Wang J, Wei Y, Wang L, Zhou S, Awsh MA, Yabasin IB, Tang J. Ezrin expression is altered in mice lymphatic metastatic hepatocellular carcinoma and subcellular fractions upon Annexin 7 modulation in-vitro. Biomed Pharmacother 2017; 85:209-217. [DOI: 10.1016/j.biopha.2016.10.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/07/2016] [Accepted: 10/24/2016] [Indexed: 01/03/2023] Open
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Bai L, Guo Y, Du Y, Wang H, Zhao Z, Huang Y, Tang J. 47kDa isoform of Annexin A7 affecting the apoptosis of mouse hepatocarcinoma cells line. Biomed Pharmacother 2016; 83:1127-1131. [PMID: 27551759 DOI: 10.1016/j.biopha.2016.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/25/2016] [Accepted: 08/04/2016] [Indexed: 12/25/2022] Open
Abstract
Our previous studies have shown that Annexin A7 is associated with the cell proliferation and apoptosis. Both the isoforms 47kDa and 51kDa of Annexin A7 are expressed in liver cancer cells. This study aimed at elucidating which isoform of Annexin A7 affects the cell apoptosis and how to affect in the hepatocarcinoma cell line. The results showed that Annexin A7 co-immunoprecipitated with Bcl2 and co-located in the cytoplasm and the mitochondria. Therein, the regulated 47kDa isoform of Annexin A7 altered the expression of Bcl2 and the mitochondrial membrane potential. These results indicate that 47kDa isoform of Annexin A7 could associated with the apoptosis of Hca-P cells through its interaction with Bcl2.
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Affiliation(s)
- Lulu Bai
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Yu Guo
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Yue Du
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Huaxin Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Zhiying Zhao
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China.
| | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China.
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Cui X, Wei Y, Wang YH, Li J, Wong FL, Zheng YJ, Yan H, Liu SS, Liu JL, Jia BL, Zhang SH. Proteins interacting with mitochondrial ATP-dependent Lon protease (MAP1) in Magnaporthe oryzae are involved in rice blast disease. MOLECULAR PLANT PATHOLOGY 2015; 16:847-59. [PMID: 25605006 PMCID: PMC6638408 DOI: 10.1111/mpp.12242] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The ATP-dependent Lon protease is involved in many physiological processes. In bacteria, Lon regulates pathogenesis and, in yeast, Lon protects mitochondia from oxidative damage. However, little is known about Lon in fungal phytopathogens. MAP1, a homologue of Lon in Magnaporthe oryzae, was recently identified to be important for stress resistance and pathogenesis. Here, we focus on a novel pathogenic pathway mediated by MAP1. Based on an interaction system between rice and a tandem affinity purification (TAP)-tagged MAP1 complementation strain, we identified 23 novel fungal proteins from infected leaves using a TAP approach with mass spectrometry, and confirmed that 14 of these proteins physically interact with MAP1 in vivo. Among these 14 proteins, 11 candidates, presumably localized to the mitochondria, were biochemically determined to be substrates of MAP1 hydrolysis. Deletion mutants were created and functionally analysed to further confirm the involvement of these proteins in pathogenesis. The results indicated that all mutants showed reduced conidiation and sensitivity to hydrogen peroxide. Appressorial formations were not affected, although conidia from certain mutants were morphologically altered. In addition, virulence was reduced in four mutants, enhanced (with lesions forming earlier) in two mutants and remained unchanged in one mutant. Together with the known virulence-related proteins alternative oxidase and enoyl-CoA hydratase, we propose that most of the Lon-interacting proteins are involved in the pathogenic regulation pathway mediated by MAP1 in M. oryzae. Perturbation of this pathway may represent an effective approach for the inhibition of rice blast disease.
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Affiliation(s)
- Xiao Cui
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Yu-Han Wang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Jian Li
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Fuk-Ling Wong
- Department of Biology, The Chinese University of Hong Kong, 999077, Hong Kong SAR
| | - Ya-Jie Zheng
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Hai Yan
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Shao-Shuai Liu
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Jin-Liang Liu
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Bao-Lei Jia
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
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Wang XY, Gao F, Sun YR, Bai LL, Ibrahim MM, Wang B, Tang JW. In vivo and in vitro effect of hepatocarcinoma lymph node metastasis by upregulation of Annexin A7 and relevant mechanisms. Tumour Biol 2015; 37:911-24. [PMID: 26256045 DOI: 10.1007/s13277-015-3691-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Accepted: 06/18/2015] [Indexed: 02/07/2023] Open
Abstract
We unveiled the association of Annexin A7 with vascular endothelial growth factor-C (VEGF-C) and the effect of upregulation of Annexin A7 in Hca-F and Hca-P cells on inhibiting hepatocarcinoma (HCC) lymph node metastasis (LNM) in vitro and in vivo. A total of 200 inbred 615 mice were randomly divided into four equal groups inoculated with Hca-F, Hca-P, FAnxa7-upregulated, and PAnxa7-upregulated cells, respectively. The primary tumor, popliteal, inguinal, and iliac lymph nodes were prepared for immunohistochemical (IHC) staining, real-time quantitative polymerase chain reaction (qRT-PCR) analysis, Western blot, and hematoxylin-eosin (H&E) staining. There was over 50 % increase both in the number of FAnxa7-upregulated and PAnxa7-upregulated cells migrated through the filter compared to their controls (FAnxa7-control, Hca-F and PAnxa7-control, Hca-P). However, no significant differences were noted in invasion ability between them (all P > 0.05). Tumor lymph vessels were significantly reduced in FAnxa7-upregulated and PAnxa7-upregulated tumors when compared with Hca-F and Hca-P tumors (all P < 0.05). Blood vessel density did not differ significantly between FAnxa7-upregulated and PAnxa7-upregulated tumors and Hca-F and Hca-P tumors. Enzyme-linked immunosorbent assay (ELISA) for VEGF-C showed that upregulating Annexin A7 decreased VEGF-C secretion in FAnxa7-upregulated and PAnxa7-upregulated cells (P < 0.05). The IHC staining result showed that the level of serum Annexin A7 was found to be statistically higher in all experimental groups than that in the control group (P < 0.05). The present results indicated that alterations in serum Annexin A7 expression may be of prognostic relevance in HCC lymphatic metastasis.
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Affiliation(s)
- Xian-Yan Wang
- Department of Pathology, Qiqihar Medical University, Qiqihar, 161006, People's Republic of China
| | - Feng Gao
- Department of Anesthesia, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161006, People's Republic of China
| | - Yu-Rong Sun
- Department of Pathology, Qiqihar Medical University, Qiqihar, 161006, People's Republic of China
| | - Lu-Lu Bai
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, No. 9, West Lvshun Southern Road, Dalian, 116044, People's Republic of China
| | - Mohammed Mohammed Ibrahim
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, No. 9, West Lvshun Southern Road, Dalian, 116044, People's Republic of China
| | - Bo Wang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, No. 9, West Lvshun Southern Road, Dalian, 116044, People's Republic of China
| | - Jian-Wu Tang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, No. 9, West Lvshun Southern Road, Dalian, 116044, People's Republic of China.
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11
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Du Y, Huang Y, Gao Y, Song B, Mao J, Chen L, Bai L, Tang J. RETRACTED: Annexin A7 modulates BAG4 and BAG4-binding proteins in mitochondrial apoptosis. Biomed Pharmacother 2015; 74:30-4. [PMID: 26349959 DOI: 10.1016/j.biopha.2015.06.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 06/22/2015] [Indexed: 01/15/2023] Open
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concerns were raised in the public domain and also reported by the authors to the journal regarding the similarity between various sections from Figures 1B, 2A, 3A and 4A. Given also the findings of the investigation conducted by the funder, the journal requested the authors to provide the raw data. However, the authors were not able to provide raw data of sufficient quality and detail for the journal to independently audit the provenance and validity of the data, and therefore the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Yue Du
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Yuhong Huang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Yue Gao
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Bo Song
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Jun Mao
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Lina Chen
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Lulu Bai
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Jianwu Tang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China.
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12
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Wang X, Jiao W, Zhao Y, Zhang L, Yao R, Wang Y, Wang M, Luo Y, Zhao J. CUG-binding protein 1 (CUGBP1) expression and prognosis of brain metastases from non-small cell lung cancer. Thorac Cancer 2015; 7:32-8. [PMID: 26816536 PMCID: PMC4718132 DOI: 10.1111/1759-7714.12268] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 03/29/2015] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The brain is a frequent site of metastases from non-small cell lung cancer (NSCLC). The purpose of this study was to detect the expression of CUG-binding protein 1 (CUGBP1) messenger ribonucleic acid (mRNA) and Ki-67 in metastasized brain tissue from NSCLC and determine the relationship between CUGBP1 and brain metastases. METHODS The expression of CUGBP1 mRNA and Ki-67 in metastasized brain tissue from NSCLC was investigated by semiquantitative polymerase chain reaction and immunohistochemistry, respectively. The expression of CUGBP1 and Ki-67 in metastasized brain tissue from NSCLC was related to clinical characteristics, as assessed using the chi-square test. The prognostic significance was assessed by univariate and multivariate analyses using the Cox hazard model. RESULTS The expression of CUGBP1 mRNA and Ki-67 was overexpressed in metastasized brain tissue from NSCLC and was correlated with differentiation. In addition, by both univariate and multivariate survival analyses, CUGBP1 expression, Ki-67 expression, and age were noted to be independent indicators of a shorter postsurgical survival. CONCLUSION The expression of CUGBP1 is an important factor in the development of brain metastases from NSCLC.
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Affiliation(s)
- Xiaofei Wang
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Wenjie Jiao
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Yandong Zhao
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Liangdong Zhang
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Ruyong Yao
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Yongjie Wang
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Mingzhao Wang
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Yiren Luo
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
| | - Jinpeng Zhao
- Department of Thoracic Surgery The Affiliated Hospital of Qingdao University Qingdao China
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13
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Huang Y, Du Y, Zhang X, Bai L, Mibrahim M, Zhang J, Wei Y, Li C, Fan S, Wang H, Zhao Z, Tang J. Down-regulated expression of Annexin A7 induces apoptosis in mouse hepatocarcinoma cell line by the intrinsic mitochondrial pathway. Biomed Pharmacother 2015; 70:146-50. [PMID: 25776493 DOI: 10.1016/j.biopha.2015.01.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 01/04/2015] [Indexed: 12/21/2022] Open
Abstract
Our previous studies have shown that decreased expression of Annexin A7 elevates apoptosis in Hca-P cells, a hepatocarcinoma cell line with lymphatic metastatic potential. In this study, RNA interference technique was used to down-regulate the expression of Annexin A7, and unmanipulated Hca-P cells and transfected nonspecific-sequence Hca-P cells as control. The down-regulation of Annexin A7 declined the cell viability after cisplatin exposure. And the reduced expression of Annexin A7 decreased the expression of Bcl2, increased the expression of Cytochrome-C in the cytoplasme, and then improved the expression of Caspase-3. However there was no significant effect on the expression of Bax, Caspase-12, Fas, FasL and Caspase-8. The results indicate that the decreased expression of Annexin A7 could inhibit the proliferation, and increase the apoptosis of Hca-P cells by affecting the expression of the apoptosis associated proteins by the mitochondrial pathway.
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Affiliation(s)
- Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China.
| | - Yue Du
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Xin Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Lulu Bai
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Mohmmed Mibrahim
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Jun Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Yuanyi Wei
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Cong Li
- Department of Pathophysiology, Dalian Medical University, Dalian, PR China
| | - Shujun Fan
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Huaxin Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Zhiying Zhao
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China
| | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, PR China.
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14
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Huang Y, Wang Q, Du Y, Bai L, Jin F, Zhang J, Fan S, Wang H, Song L, Gao Y, Wang X, Tang J. Inhibition of annexin A7 gene and protein induces the apotosis and decreases the invasion, migration of the hepatocarcinoma cell line. Biomed Pharmacother 2014; 68:819-24. [PMID: 25070395 DOI: 10.1016/j.biopha.2014.07.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/02/2014] [Indexed: 01/11/2023] Open
Abstract
Our previous studies have shown that annexin A7 (ANXA7) gives different expressions in the mouse hepatocarcinoma cell lines with low or high lymphatic metastatic potential in both gene and protein levels. In this study, whether by using RNA interference (RNAi) technique downregulating ANXA7 in the gene level or by using antibody against ANXA7 in the protein level, the depressed expression of ANXA7 could induce apotosis and decrease the invasion, migration capacities of the Hca-P cell, a hepatocarcinoma cell line with low lymphatic metastatic potential in vitro. The results indicate that ANXA7 is an important factor in tumors with the lymphatic metastasis.
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Affiliation(s)
- Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China.
| | - Qing Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Yue Du
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Lulu Bai
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Fen Jin
- Dalian Maternity Hospital, Dalian, Liaoning Province, PR China
| | - Jun Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Shujun Fan
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Huaxin Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Lin Song
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Yue Gao
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Xianyan Wang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China
| | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory for Tumor Metastasis of Liaoning Province, Dalian, Liaoning Province, PR China.
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15
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Du Y, Meng J, Huang Y, Wu J, Wang B, Ibrahim MM, Tang J. Guanine nucleotide-binding protein subunit beta-2-like 1, a new Annexin A7 interacting protein. Biochem Biophys Res Commun 2014; 445:58-63. [PMID: 24491534 DOI: 10.1016/j.bbrc.2014.01.119] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 01/23/2014] [Indexed: 12/19/2022]
Abstract
We report for the first time that Guanine nucleotide-binding protein subunit beta-2-like 1 (RACK1) formed a complex with Annexin A7. Hca-F and Hca-P are a pair of syngeneic mouse hepatocarcinoma cell lines established and maintained in our laboratory. Our previous study showed that both Annexin A7 and RACK1 were expressed higher in Hca-F (lymph node metastasis >70%) than Hca-P (lymph node metastasis <30%). Suppression of Annexin A7 expression in Hca-F cells induced decreased migration and invasion ability. In this study, knockdown of RACK1 by RNA interference (RNAi) had the same impact on metastasis potential of Hca-F cells as Annexin A7 down-regulation. Furthermore, by co-immunoprecipitation and double immunofluorescence confocal imaging, we found that RACK1 was in complex with Annexin A7 in control cells, but not in the RACK1-down-regulated cells, indicating the abolishment of RACK1-Annexin A7 interaction in Hca-F cells by RACK1 RNAi. Taken together, these results suggest that RACK1-Annexin A7 interaction may be one of the means by which RACK1 and Annexin A7 influence the metastasis potential of mouse hepatocarcinoma cells in vitro.
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Affiliation(s)
- Yue Du
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Jinyi Meng
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Yuhong Huang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Jun Wu
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Bo Wang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Mohammed M Ibrahim
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China
| | - Jianwu Tang
- Key Laboratory of Tumor Metastasis of Liaoning Province, Department of Pathology, Dalian Medical University, Dalian 116044, China.
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16
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Wang X, Yuegao, Bai L, Ibrahim MM, Ma W, Zhang J, Huang Y, Wang B, Song L, Tang J. Evaluation of Annexin A7, Galectin-3 and Gelsolin as possible biomarkers of hepatocarcinoma lymphatic metastasis. Biomed Pharmacother 2014; 68:259-65. [PMID: 24529848 DOI: 10.1016/j.biopha.2013.12.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 12/31/2013] [Indexed: 01/25/2023] Open
Abstract
We have previously demonstrated that Annexin A7 is involved in the lymphatic metastasis of hepatocarcinoma in vitro. The expression of Galectin-3 and Gelsolin, which were also relevant to tumor lymphatic metastasis, had shown the same tendency concordantly with the expression of Annexin A7 alteration by qRT-PCR and Western blot analysis. Here, we gain an insight into the role that Annexin A7 is playing in Hca-P, PAnxa7-upregulated and PAnxa7-downregulated cells in vivo. Then, Hca-P, PAnxa7-upregulated and PAnxa7-downregulated cells were injected into a mouse footpad to establish primary tumors in mice. On the fourth week after HCC cells inoculation, the mice were sacrificed for inspection the expression of Annexin A7, Galectin-3 and Gelsolin in primary tumors and in serum. Our work indicates that Annexin A7 and Gelsolin are both valuable in tumors and in serum evaluating lymph node metastasis in mice with hepatocarcinoma; Galectin-3 in tumors is significant but no much contribution in serum.
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Affiliation(s)
- Xianyan Wang
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China; Department of Pathology, Qiqihar Medical College, 161006 Heilongjiang, China
| | - Yuegao
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Lulu Bai
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Mohammed Mohammed Ibrahim
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Wei Ma
- Department of Human Anatomy, Dalian Medical University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Jun Zhang
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Bo Wang
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Lin Song
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China
| | - Jianwu Tang
- Department of Pathology, Dalian Medical University, Key Laboratory of Tumor Metastasis of Liaoning Province University, 9, West Lvshun Southern Road, Dalian, 116044 Liaoning, China.
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17
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Song L, Mao J, Zhang J, Ibrahim MM, Li LH, Tang JW. Annexin A7 and its binding protein galectin-3 influence mouse hepatocellular carcinoma cell line in vitro. Biomed Pharmacother 2013; 68:377-84. [PMID: 24373698 DOI: 10.1016/j.biopha.2013.10.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 10/28/2013] [Indexed: 12/17/2022] Open
Abstract
Lymph node metastasis is recognized as an important mode of liver cancer metastasis. Our previous study has built two hepatocarcinoma cell lines, Hca-F with high (75%) and Hca-P with low (25%) incidences of lymph node metastasis, and has indicated that annexin A7 is an important factor in the lymphatic metastasis of tumors. There is evidence that galectin-3 is the binding protein of annexin A7 and works in protein complexes. Our current study shows that both annexin A7 and galectin-3 express higher in Hca-F than Hca-P. Annexin A7 was successfully down-regulated in Hca-P by RNA interference, and this resulted in concomitant reduction of galactin 3 expression in annexin A7 down regulated compared to the control and N-control cells. Using CCK-8 assay, the expression level of annexin A7 and galectin-3 were found to have correlation with the proliferation ability; Transwell assay showed annexin A7 and galectin-3 are involved in cell migration and invasion regulation in mouse hepatocellular carcinoma cell lines, immunofluorescence assay indicate annexin A7 and galectin-3 were co-located annexin A7 and galectin-3 played roles in DNA damage and cell proliferation cycle checkpoint arrest pathway. Those phenomena indicated that annexin A7 influences lymphatic metastasis of tumors by interacting with galectin-3 through the regulation of tumor cell proliferation, attachment, migration and invasion.
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Affiliation(s)
- Lin Song
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China
| | - Jun Mao
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China
| | - Jun Zhang
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China
| | - Mohammed Mohammed Ibrahim
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China
| | - Lian-Hong Li
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China.
| | - Jian-Wu Tang
- The Key laboratory of tumor metastasis in Liaoning Province, Dalian Medical University, 9 West, Lvshun Southern Road, Dalian 116044, China.
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Jin Y, Wang S, Chen W, Zhang J, Wang B, Guan H, Tang J. Annexin A7 suppresses lymph node metastasis of hepatocarcinoma cells in a mouse model. BMC Cancer 2013; 13:522. [PMID: 24188284 PMCID: PMC3840638 DOI: 10.1186/1471-2407-13-522] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 09/20/2013] [Indexed: 11/25/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the leading causes of cancer death in China. This study investigated the effects of Annexin A7 (ANXA7) on the inhibition of HCC lymph node metastasis in a mouse model. Methods The stable knockup and knockdown of Annexin A7-expressing HCC cells using Annexin A7 cDNA and shRNA vectors, respectively, were injected into a mouse footpad to establish primary and metastatic tumors in mice. On the 14th, 21st, and 28th days after HCC cells inoculation, the mice were sacrificed for inspection of primary and secondary tumors and immunohistochemistry of Annexin A7 expression. Results The lymph node metastasis rate of the FANXA7-control group was 77%, and the lymph node metastasis rate of the FANXA7-down group was 100% (p < 0.05). In contrast, the lymph node metastasis rate of the PANXA7-up group was 0% and that of the PANXA7-control group was 36% (p < 0.05). Furthermore, immunohistochemistry experiments revealed that the subcellular localization of Annexin A7 protein in both primary and lymph node-metastasized tumors was mainly in the cytosol. In addition, the expression of the 47 kDa and 51 kDa isoforms of Annexin A7 protein changed during tumor progression. Conclusion This study indicated that Annexin A7 expression was able to inhibit HCC lymph node metastasis, whereas knockdown of Annexin A7 expression significantly induced HCC metastasis to local lymph nodes.
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Affiliation(s)
| | | | | | | | | | | | - Jianwu Tang
- Department of Pathology, Dalian Medical University, 9 West Lvshun Southern Road, Dalian 116044, P,R, China.
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