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Xu L, Pan F, Guo Z. TIPE2: A Candidate for Targeting Antitumor Immunotherapy. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:755-763. [PMID: 38377476 DOI: 10.4049/jimmunol.2300433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 12/18/2023] [Indexed: 02/22/2024]
Abstract
TNF-α-induced protein 8-like 2 (TIPE2 or TNFAIP8L2) is a recently discovered negative regulator of innate and adaptive immunity. TIPE2 is expressed in a wide range of tissues, both immune and nonimmune, and is implicated in the maintenance of immune homeostasis within the immune system. Furthermore, TIPE2 has been shown to play a pivotal role in the regulation of inflammation and the development of tumor. This review focuses on the structural characteristics, expression patterns, and functional roles of TIPE proteins, with a particular emphasis on the role and underlying mechanisms of TIPE2 in immune regulation and its involvement in different diseases. However, the current body of evidence is still limited in providing a comprehensive understanding of the complex role of TIPE2 in the human body, warranting further investigation to elucidate the possible mechanisms and functions of TIPE2 in diverse disease contexts.
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Affiliation(s)
- Luxia Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Feiyan Pan
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Padmavathi G, Monisha J, Bordoloi D, Banik K, Roy NK, Girisa S, Singh AK, Longkumer I, Baruah MN, Kunnumakkara AB. Tumor necrosis factor-α induced protein 8 (TNFAIP8/TIPE) family is differentially expressed in oral cancer and regulates tumorigenesis through Akt/mTOR/STAT3 signaling cascade. Life Sci 2021; 287:120118. [PMID: 34740574 DOI: 10.1016/j.lfs.2021.120118] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/23/2021] [Accepted: 10/29/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Highest incidence of oral cancer is reported in India with reduced survival rate in the advanced stages due to lack of effective biomarkers. Therefore, it is essential to develop novel biomarkers for the better management of this disease. In the current study, TNFAIP8/TIPE protein family comprising of four proteins is explored for its role in oral cancer. METHODS IHC analysis of oral cancer TMA and Western blot analysis of tobacco treated oral cancer cells were performed to determine the differential expression of TIPE proteins in oral cancer. Further, CRISPR/Cas9-mediated gene editing was done to generate TIPE proteins' knockouts and MTT, colony formation, wound healing, cell cycle and Western blot analysis were performed to determine the effect of gene knockouts on various cancer hallmarks and the associated molecular targets of TIPE proteins. RESULTS AND DISCUSSION IHC results revealed that expression of TIPE, TIPE2 and TIPE3 were upregulated and TIPE1 was downregulated in oral cancer tissues compared to normal tissues. Similar results were observed upon treating oral cancer cells with tobacco carcinogens. Furthermore, knockout of TIPE or TIPE2 or TIPE3 significantly reduced the survival, proliferation, colony formation and migration of oral cancer cells whereas knockout of TIPE1 had an opposite effect. Further, TIPE, TIPE2 and TIPE3 knockout-mediated inhibition of proliferation was associated with inhibition of cell cycle progression at S or G2/M phases, and downregulation of proteins involved in cancer progression. We found that TIPE, TIPE1 and TIPE2 proteins regulate oral cancer progression through modulation of Akt/mTOR signaling cascade, whereas TIPE3 acts through an Akt-independent mTOR/STAT3 pathway. CONCLUSION Collectively, the TIPE proteins were proved to play significant roles in the progression of oral cancer thus warranting research and clinic attention for their therapeutic and prognostic values and raising the importance of specific targeting of TIPE proteins in cancer treatment.
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Affiliation(s)
- Ganesan Padmavathi
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Javadi Monisha
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Devivasha Bordoloi
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Kishore Banik
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Nand Kishor Roy
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Anuj Kumar Singh
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Imliwati Longkumer
- North-East Cancer Hospital and Research Institute, Guwahati 781023, Assam, India
| | | | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India.
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Gu Z, Cui X, Sun P, Wang X. Regulatory Roles of Tumor Necrosis Factor-α-Induced Protein 8 Like-Protein 2 in Inflammation, Immunity and Cancers: A Review. Cancer Manag Res 2020; 12:12735-12746. [PMID: 33364825 PMCID: PMC7751774 DOI: 10.2147/cmar.s283877] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/15/2020] [Indexed: 12/12/2022] Open
Abstract
Tumor necrosis factor-alpha (TNF-α)-induced protein 8 (TNFAIP8/TIPE) family, including TNFAIP8 (TIPE), TNFAIP8 like-protein 1 (TNFAIP8L1/TIPE1), TNFAIP8 like-protein 2 (TNFAIP8L2/TIPE2), and TNFAIP8 like-protein 3 (TNFAIP8L3/TIPE3), plays a vital role in regulating inflammatory responses, immune homeostasis, and cancer development. Over the last decade, studies have shown that TIPE2 protein is differentially expressed in diverse cells and tissues. The dysregulation of TIPE2 protein can lead to dysregulation of inflammatory responses and immune homeostasis, and change the basic characteristics of cancers. In consideration of the immeasurable values of TIPE2 in diagnosis, treatment, and prognosis of various human diseases, this review will focus on the expression pattern, structure, and regulatory roles of TIPE2 in inflammation, immunity, and cancers.
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Affiliation(s)
- Zhengzhong Gu
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Xiaohan Cui
- Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Pengda Sun
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Xudong Wang
- Department of Gastrointestinal Nutrition and Hernia Surgery, The Second Hospital of Jilin University, Changchun, Jilin Province, People's Republic of China
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Zhao LL. TIPE2 suppresses progression and tumorigenesis of the oral tongue squamous cell carcinoma by regulating FoxP3 + regulatory T cells. J Bioenerg Biomembr 2020; 52:279-289. [PMID: 32594290 DOI: 10.1007/s10863-020-09840-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 06/01/2020] [Indexed: 12/21/2022]
Abstract
To discover the effect of tumor necrosis factor-alpha-induced protein 8-like 2 (TIPE2) on the oral tongue squamous cell carcinoma (OTSCC) via affecting FoxP3+ regulatory T (Treg) cells. Immunohistochemistry was conducted to examine TIPE2 and FoxP3 expressions in OTSCC tumor tissues and corresponding oral mucosa. Tca8113 cells were transfected with TIPE2/control lentiviral activation particles followed by the detection with qRT-PCR, Western blotting, MTT assay, Wound healing, Transwell assay and Annexin V-FITC/PI staining. In vivo experiment was carried out on the nude mice xenografts of OTSCC with TIPE2 overexpression to observe the tumor volume and survival, and the CD4+ T cell subgroups were detected by flow cytometry. TIPE2 was lower in the OTSCC tissues than the corresponding oral mucosa, which was correlated with T stage, N stage, TNM stage, and differentiation of patients. Patients with TIPE2-positive expression had worse prognosis and lower expression of FoxP3+ Treg cells than the negative ones. Furthermore, TIPE2 overexpression curbed proliferation, invasion and migration of Tca8113 cells, while cell apoptosis was increased. Besides, TIPE2 suppressed the tumor growth and extended the survival of OTSCC mice, with the decreased proportion of FoxP3+ Treg cells in the spleen and tumor-infiltrated lymphocytes (TILs). The clinical results showed the down-regulation of TIPE2 in OTSCC tissues. Meanwhile TIPE2 overexpression affected OTSCC cells biological behavior in vitro, as well as exhibited strong tumor-growth suppressive effects in vivo, which may be a potential therapeutic target in OTSCC via regulating FoxP3+ Treg cells.
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Affiliation(s)
- Li-Li Zhao
- Department of Stomatology, Caoxian people's Hospital, Heze City, 274400, Shandong Province, China.
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Bordoloi D, Banik K, Padmavathi G, Vikkurthi R, Harsha C, Roy NK, Singh AK, Monisha J, Wang H, Kumar AP, Kunnumakkara AB. TIPE2 Induced the Proliferation, Survival, and Migration of Lung Cancer Cells Through Modulation of Akt/mTOR/NF-κB Signaling Cascade. Biomolecules 2019; 9:E836. [PMID: 31817720 PMCID: PMC6995575 DOI: 10.3390/biom9120836] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022] Open
Abstract
Lung cancer represents the most common cause of cancer deaths in the world, constituting around 11.6% of all new cancer cases and 18.4% of cancer-related deaths. The propensity for early spread, lack of suitable biomarkers for early diagnosis, as well as prognosis and ineffective existing therapies, contribute to the poor survival rate of lung cancer. Therefore, there is an urgent need to develop novel biomarkers for early diagnosis and prognosis which in turn can facilitate newer therapeutic avenues for the management of this aggressive neoplasm. TIPE2 (tumor necrosis factor-α-induced protein 8-like 2), a recently identified cytoplasmic protein, possesses enormous potential in this regard. Immunohistochemical analysis showed that TIPE2 was significantly upregulated in different stages and grades of lung cancer tissues compared to normal lung tissues, implying its involvement in the positive regulation of lung cancer. Further, knockout of TIPE2 resulted in significantly reduced proliferation, survival, and migration of human lung cancer cells through modulation of the Akt/mTOR/NF-κB signaling axis. In addition, knockout of TIPE2 also caused arrest in the S phase of the cell cycle of lung cancer cells. As tobacco is the most predominant risk factor for lung cancer, we therefore evaluated the effect of TIPE2 in tobacco-mediated lung carcinogenesis as well. Our results showed that TIPE2 was involved in nicotine-, nicotine-derived nitrosamine ketone (NNK)-, N-nitrosonornicotine (NNN)-, and benzo[a]pyrene (BaP)-mediated lung cancer through inhibited proliferation, survival, and migration via modulation of nuclear factor kappa B (NF-κB)- and NF-κB-regulated gene products, which are involved in the regulation of diverse processes in lung cancer cells. Taken together, TIPE2 possesses an important role in the development and progression of lung cancer, particularly in tobacco-promoted lung cancer, and hence, specific targeting of it holds an enormous prospect in newer therapeutic interventions in lung cancer. However, these findings need to be validated in the in vivo and clinical settings to fully establish the diagnostic and prognostic importance of TIPE2 against lung cancer.
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Affiliation(s)
- Devivasha Bordoloi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Kishore Banik
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Ganesan Padmavathi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Rajesh Vikkurthi
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Choudhary Harsha
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Nand Kishor Roy
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Anuj Kumar Singh
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Javadi Monisha
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
| | - Hong Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore;
- Singapore Nuclear Research and Safety Initiative, National University of Singapore, Singapore 138602, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore;
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DAILAB, DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India; (D.B.); (K.B.); (G.P.); (R.V.); (C.H.); (N.K.R.); (A.K.S.); (J.M.)
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Li D, Tan Y. TIPE2 suppresses atherosclerosis by exerting a protective effect on macrophages via the inhibition of the Akt signaling pathway. Exp Ther Med 2019; 17:2937-2944. [PMID: 30936963 PMCID: PMC6434246 DOI: 10.3892/etm.2019.7316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 11/30/2018] [Indexed: 12/19/2022] Open
Abstract
Macrophage apoptosis and inflammation serve pivotal roles in the occurrence of atherosclerosis. However, the detailed underlying mechanism of macrophage action during atherosclerosis is poorly understood. Tumor necrosis factor-α-induced protein 8-like 2 (TIPE2) is a well-known negative regulator of the immune response. The current study assessed the association between TIPE2 and apoptosis-associated molecules in macrophages during atherosclerosis, as well as the role of TIPE2 in macrophage inflammation. RAW264.7 macrophages were subsequently transfected with a TIPE2 expression plasmid. Following oxidized low-density lipoprotein (oxLDL) induction (100 µg/m1) for 48 h, macrophage apoptosis was assessed via Annexin V/propidium iodide dual staining. The apoptosis-associated factors and Akt signaling pathway-associated factors were also evaluated via western blot analysis. The expression of inflammatory factors was determined via a reverse transcription-quantitative polymerase chain reaction assay and western blotting. Furthermore, a transwell assay was performed to test cell invasion ability. NF-κB phosphorylation and nuclear translocation were also assessed via western blotting. The results demonstrated that TIPE2 overexpression may promote oxLDL-induced RAW264.7 macrophage apoptosis by inhibiting the protein kinase B (Akt) signaling pathway. Furthermore, it was demonstrated that TIPE2 significantly reduced oxLDL-induced tumor necrosis factor alpha (TNF-α), interleukin-6 (IL-6) and monocyte chemoattractant protein 1 expression (MCP-1), and increased IL-10 expression by suppressing NF-κB phosphorylation and nuclear translocation in RAW264.7 macrophages. These results indicated that TIPE2 serves a protective role in oxLDL-induced RAW264.7 macrophages, and its mechanism may partly be exerted via the inhibition of the PI3K/Akt signaling pathway and the reduction of the macrophage inflammatory response achieved via the suppression of NF-κB signal activation.
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Affiliation(s)
- Dan Li
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Ying Tan
- Department of Cardiovascular Medicine, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421000, P.R. China
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TIPE Family of Proteins and Its Implications in Different Chronic Diseases. Int J Mol Sci 2018; 19:ijms19102974. [PMID: 30274259 PMCID: PMC6213092 DOI: 10.3390/ijms19102974] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/19/2018] [Accepted: 09/22/2018] [Indexed: 12/14/2022] Open
Abstract
The tumor necrosis factor-α-induced protein 8-like (TIPE/TNFAIP8) family is a recently identified family of proteins that is strongly associated with the regulation of immunity and tumorigenesis. This family is comprised of four members, namely, tumor necrosis factor-α-induced protein 8 (TIPE/TNFAIP8), tumor necrosis factor-α-induced protein 8-like 1 (TIPE1/TNFAIP8L1), tumor necrosis factor-α-induced protein 8-like 2 (TIPE2/TNFAIP8L2), and tumor necrosis factor-α-induced protein 8-like 3 (TIPE3/TNFAIP8L3). Although the proteins of this family were initially described as regulators of tumorigenesis, inflammation, and cell death, they are also found to be involved in the regulation of autophagy and the transfer of lipid secondary messengers, besides contributing to immune function and homeostasis. Interestingly, despite the existence of a significant sequence homology among the four members of this family, they are involved in different biological activities and also exhibit remarkable variability of expression. Furthermore, this family of proteins is highly deregulated in different human cancers and various chronic diseases. This review summarizes the vivid role of the TIPE family of proteins and its association with various signaling cascades in diverse chronic diseases.
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Padmavathi G, Banik K, Monisha J, Bordoloi D, Shabnam B, Arfuso F, Sethi G, Fan L, Kunnumakkara AB. Novel tumor necrosis factor-α induced protein eight (TNFAIP8/TIPE) family: Functions and downstream targets involved in cancer progression. Cancer Lett 2018; 432:260-271. [DOI: 10.1016/j.canlet.2018.06.017] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 12/21/2022]
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Liu W, Fan Y, Shi Y, Lin Z, Huang X, Huang W, Shen D, Qi Z. Knockdown of TIPE2 increases the proliferation in lipopolysaccharide-stimulated gastric cancer cells. BMC Cancer 2018; 18:857. [PMID: 30157801 PMCID: PMC6116435 DOI: 10.1186/s12885-018-4761-3] [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: 08/08/2017] [Accepted: 08/17/2018] [Indexed: 12/13/2022] Open
Abstract
Background Gastric cancer (GC) is one of the most common malignant diseases with high morbidity and mortality, especially in Asian countries. During the GC developing progress, TIPE2, a member of TNF-alpha induced protein 8-like (TNFAIP8L) family, may play important roles. However, the molecular mechanisms of TIPE2 contributing to cell proliferation and tumor growth are poorly understood in GC. We performed flow cytometry to detect the cell cycle of TIPE2-knockdown GC cells under lipopolysaccharide (LPS) stimulation. Methods We measured TIPE2 expression in tumor samples from 46 human GC patients at mRNA level by Realtime PCR and in 68 pairs of GC tissues at protein level by immunohistochemistry. We established stable TIPE2 knockdown SGC7901 and BGC823 cell lines and performed CCK-8 and EdU proliferation assays under the stimulation of LPS. And then we analyzed AKT, IκBα and ERK phosphorylation levels, as well as cycle related proteins CDK4 and CyclinD3 in the stable TIPE2 knockdown SGC7901 and BGC823 cells. Results Our present studies indicated that the expression of TIPE2 was significantly decreased in tumor tissues compared to distant mucosa tissues in human GC patients. TIPE2 inhibited proliferation stimulated by LPS in SGC7901 and BGC823 cells. Silencing of TIPE2 significantly decreased cell G0/G1 phase ratio and increased G2/M phase. TIPE2 knockdown SGC7901 and BGC823 cells declined AKT and IκBα phosphorylation. TIPE2’s action on GC cell cycle was. Conclusions Our results demonstrated that TIPE2 is a novel tumor suppressor gene that inhibits GC growth may mediated via AKT and IκBα phosphorylated activation. We revealed that TIPE2 may effectively interdict neoplasm development, which has potential clinical application values for GC targeted therapies.
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Affiliation(s)
- Wenming Liu
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, 361004, Fujian Province, China
| | - Yanyun Fan
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, 361004, Fujian Province, China
| | - Ying Shi
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, Guangdong Province, China.,The First Clinical Medical College, Jinan University, Guangzhou, 510632, Guanegdong Province, China
| | - Zhenhe Lin
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, 361004, Fujian Province, China
| | - Xiaoxiao Huang
- Department of Gastroenterology, Zhongshan Hospital, Xiamen University, Xiamen, 361004, Fujian Province, China
| | - Wei Huang
- Department of Gastroenterology, The First Affiliated Hospital, Jinan University, Guangzhou, 510632, Guangdong Province, China.,The First Clinical Medical College, Jinan University, Guangzhou, 510632, Guanegdong Province, China
| | - Dongyan Shen
- Biobank, The First Affiliated Hospital of Xiamen University, Xiamen, 361003, Fujian Province, China.
| | - Zhongquan Qi
- Organ Transplantation Institute, Medical College of Xiamen University, Xiamen, 361005, Fujian Province, China.
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Sun Y, Wang X, Li Y, Sun H, Wan L, Wang X, Zhang L, Fang Z, Wei Z. The decreased expression of TIPE2 protein in the decidua of patients with missed abortion and possible significance. Reprod Biol Endocrinol 2017; 15:68. [PMID: 28851386 PMCID: PMC5576376 DOI: 10.1186/s12958-017-0285-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/29/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Missed abortion is a common occurrence for otherwise healthy women. Immunological factor is one of the most important reasons. Tumor necrosis factor-α-induced protein-8 like-2 (TIPE2) is a novel negative immune regulator related to several human diseases. However, the expression level and clinical significance of TIPE2 in missed abortion remain unclear. METHODS The expression of TIPE2 mRNA and protein in decidua and chorion from 36 missed abortion patients and 36 healthy controls was detected using quantitative real-time PCR, western blot and immunohistochemistry. In addition, serum TNF-ɑ and IL-10 levels were measured using flow cytometry. Serum estradiol and progesterone levels were measured by radioimmunoassay test. The correlations of TIPE2 protein levels with TNF-ɑ, IL-10, estradiol and progesterone were further analyzed. RESULTS TIPE2 protein levels were significantly lower in decidual tissues of missed abortion patients than those in healthy controls. The patients with missed abortion had significantly higher levels of serum TNF-ɑ, and lower levels of serum IL-10, estradiol and progesterone compared with healthy controls. The TIPE2 protein levels were positively related to serum IL-10 levels. CONCLUSION Our data indicate TIPE2 could play important roles in maintaining the maternal-fetal tolerance and decreased TIPE2 expression in the decidua may be related to the development of missed abortion.
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Affiliation(s)
- Yingshuo Sun
- 0000 0004 1761 1174grid.27255.37Department of Gynecology and Obstetrics, Clinical Medical School, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong 250012 People’s Republic of China
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Xiaoyan Wang
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Yue Li
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Han Sun
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
- grid.415946.bDepartment of Clinical Laboratory Services, Linyi People’s Hospital, Linyi, Shandong People’s Republic of China
| | - Lu Wan
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Xishuang Wang
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Lining Zhang
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
| | - Zhenghui Fang
- grid.452222.1Department of Gynecology and Obstetrics, Jinan Central Hospital affiliated to Shandong University, 105# Jiefang Road, Jinan, Shandong 250013 People’s Republic of China
| | - Zengtao Wei
- 0000 0004 1761 1174grid.27255.37Department of Gynecology and Obstetrics, Clinical Medical School, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong 250012 People’s Republic of China
- 0000 0004 1761 1174grid.27255.37Department of Immunology, School of Basic Medical Sciences, Shandong University, 44# Wenhua Xi Road, Jinan, Shandong People’s Republic of China
- grid.452222.1Department of Gynecology and Obstetrics, Jinan Central Hospital affiliated to Shandong University, 105# Jiefang Road, Jinan, Shandong 250013 People’s Republic of China
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