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METİN MS, BİLEN H, ELMAS ÖF, AKDENİZ N. The potential role of human HIV-1 TAT-Interactive Protein 2 levels in the pathogenesis of contact dermatitis. Turk J Med Sci 2021; 51:3017-3021. [PMID: 34688245 PMCID: PMC10734859 DOI: 10.3906/sag-2106-81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 12/13/2021] [Accepted: 10/23/2021] [Indexed: 11/03/2022] Open
Abstract
Background/aim Human HIV-1 TAT interactive protein 2 (HTATIP2/TIP30) is a gene that is extensively expressed in human tissues as well as in tumor tissues. This study aimed to explore the potential role of HTATIP2/TIP30 in contact dermatitis (CD), which is one of the most common inflammatory cutaneous conditions. Materials and methods This cross-sectional study involved adult patients with acute contact dermatitis who were admitted to the outpatient dermatology clinic of a tertiary hospital and healthy adult volunteers without any cutaneous or systemic diseases. The blood concentration of HTATIP2/TIP30 was measured using ELISA kits. Results The research sample consisted of 31 patients with CD (18 males, 13 females) and 20 healthy control subjects (14 males, 6 females). The mean ages of the patients with CD and healthy volunteers were 37 and 30 years, respectively (p > 0.05). The mean value of serum HTATIP2/TIP30 levels in patients with CD was 1.65 ng ml–1, which is 0.60 ng ml–1 in the control group (p = 0.02) Conclusion In this study, serum levels of HTATIP2/TIP30 were statistically significantly higher in patients with CD when compared to healthy controls. This outcome may indicate possible role of HTATIP2/TIP30 in the pathogenesis of CD.
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Affiliation(s)
- Mahmut Sami METİN
- Department of Dermatology, Faculty of Medicine, Kırşehir Ahi Evran University, Kırşehir,
Turkey
| | - Handan BİLEN
- Department of Dermatology, Faculty of Medicine, Ataturk University, Erzurum,
Turkey
| | - Ömer Faruk ELMAS
- Department of Dermatology, Faculty of Medicine, Kırıkkale University, Kırıkkale,
Turkey
| | - Necmettin AKDENİZ
- Department of Dermatology, Memorial Ataşehir Hospital, İstanbul,
Turkey
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Li M, Li J, Guo X, Pan H, Zhou Q. Absence of HTATIP2 Expression in A549 Lung Adenocarcinoma Cells Promotes Tumor Plasticity in Response to Hypoxic Stress. Cancers (Basel) 2020; 12:cancers12061538. [PMID: 32545251 PMCID: PMC7352940 DOI: 10.3390/cancers12061538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022] Open
Abstract
HIV-1 Tat Interactive Protein 2 (HTATIP2) is a tumor suppressor, of which reduced or absent expression is associated with increased susceptibility to tumorigenesis and enhanced tumor invasion and metastasis. However, whether the absent expression of HTATIP2 is a tumor-promoting factor that acts through improving tumor adaptation to hypoxia is unclear. Here, we established a stable HTATIP2-knockdown A549 human lung adenocarcinoma cell line (A549shHTATIP2) using lentiviral-delivered HTATIP2-targeting short hairpin RNA (shRNA), employed a double subcutaneous xenograft model and incorporated photoacoustic imaging and metabolomics approaches to elucidate the impact of the absent HTATIP2 expression on tumor response to hypoxic stress. Results from the in vivo study showed that A549shHTATIP2 tumors exhibited accelerated growth but decreased intratumoral oxygenation and angiogenesis and reduced sensitivity to sorafenib treatment as compared with their parental counterparts. Moreover, results of the immunoblot and real-time PCR analyses revealed that the HIF2α protein and mRNA levels in vehicle-treated A549shHTATIP2 tumors were significantly increased (p < 0.01 compared with the parental control tumors). Despite the strong HIF2α-c-Myc protein interaction indicated by our co-immunoprecipitation data, the increase in the c-Myc protein and mRNA levels was not significant in the A549shHTATIP2 tumors. Nonetheless, MCL-1 and β-catenin protein levels in A549shHTATIP2 tumors were significantly increased (p < 0.05 compared with the parental control tumors), suggesting an enhanced β-catenin/c-Myc/MCL-1 pathway in the absence of HTATIP2 expression. The finding of significantly decreased E-cadherin (p < 0.01 compared with vehicle-treated A549shHTATIP2 tumors) and increased vimentin (p < 0.05 compared with sorafenib-treated A549 tumors) protein levels in A549shHTATIP2 tumors implicates that the absence of HTATIP2 expression increases the susceptibility of A549 tumors to sorafenib-activated epithelial-mesenchymal transition (EMT) process. Comparison of the metabolomic profiles between A549 and A549shHTATIP2 tumors demonstrated that the absence of HTATIP2 expression resulted in increased tumor metabolic plasticity that enabled tumor cells to exploit alternative metabolic pathways for survival and proliferation rather than relying on glutamine and fatty acids as a carbon source to replenish TCA cycle intermediates. Our data suggest a mechanism by which the absent HTATIP2 expression modulates tumor adaptation to hypoxia and promotes an aggressive tumor phenotype by enhancing the HIF2α-regulated β-catenin/c-Myc/MCL-1 signaling, increasing the susceptibility of tumors to sorafenib treatment-activated EMT process, and improving tumor metabolic plasticity.
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Affiliation(s)
- Minghua Li
- Department of Pharmaceutical Sciences, Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA; (M.L.); (X.G.)
| | - Jing Li
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA;
| | - Xiaofang Guo
- Department of Pharmaceutical Sciences, Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA; (M.L.); (X.G.)
| | - Hua Pan
- Division of Cardiovascular Sciences, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA;
| | - Qingyu Zhou
- Department of Pharmaceutical Sciences, Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA; (M.L.); (X.G.)
- Correspondence: ; Tel.: +1-813-974-7081
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Zhao B, Chen Y, Hu S, Yang N, Liu M, Li J, Bao Z, Wu X. Characterization of HTATIP2 and its role during hair follicle cycles in Angora rabbit. Genome 2020; 63:179-187. [PMID: 31917611 DOI: 10.1139/gen-2019-0132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hair follicle (HF) growth and cycling is a complex biological process that occurs in most mammals. As HF growth and cycling directly impacts rabbit wool yield, it is important to better understand the potential regulation pattern of HF development. Our previous study demonstrated that HTATIP2 may participate in regulating rabbit HF cycles, but the molecular mechanism of HTATIP2 remained unclear. In this study, the coding sequence of the HTATIP2 gene in Angora rabbit was cloned. The length of the coding region sequence was 840 bp, which could code 279 amino acids, and exhibited high homology in different mammals. Bioinformatics analyses indicated that the HTATIP2 protein is stable, hydrophilic, located around the cytoplasm, and has a putative signal peptide. Moreover, we verified that HTATIP2 is highly expressed during catagen and telogen of the HF cycle. The overexpression vector was constructed and siRNAs were designed. Overexpression and knockdown of HTATIP2 appeared to regulate JAK-STAT pathway genes, such as BCL2, CCND1, c-Myc, and STAT2. It is therefore likely that HTATIP2 promotes cell apoptosis and inhibits cell proliferation. Our results indicate that HTATIP2 is highly expressed during catagen and telogen and may play an important role in JAK-STAT signaling. This study provides a theoretical foundation for investigating HTATIP2 in biological processes.
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Affiliation(s)
- Bohao Zhao
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Yang Chen
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China.,Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Shuaishuai Hu
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Naisu Yang
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Ming Liu
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Jiali Li
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Zhiyuan Bao
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
| | - Xinsheng Wu
- College of Animal Science and Technology, Yangzhou University, 225009, Yangzhou, Jiangsu, China
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TIP30 regulates lipid metabolism in hepatocellular carcinoma by regulating SREBP1 through the Akt/mTOR signaling pathway. Oncogenesis 2017; 6:e347. [PMID: 28604762 PMCID: PMC5519197 DOI: 10.1038/oncsis.2017.49] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/18/2017] [Accepted: 05/02/2017] [Indexed: 12/24/2022] Open
Abstract
Lipid reprogramming has been considered as a crucial characteristic in hepatocellular carcinoma (HCC) initiation and progression. However, detailed molecular mechanisms have yet to be clearly defined. Here, we examined the effects of tumor suppressor TIP30 on the regulation of HCC lipid metabolism. We found that decreased TIP30 expression leads to elevated fatty acid synthesis and enhanced levels of lipogenic enzymes SCD and FASN in HCC cells. Moreover, SREBP1 is one of the key transcription factors regulating liver lipid metabolism, and TIP30 deficiency significantly increased SREBP1 expression and nuclear accumulation. Small interfering RNAs targeting SREBP1 could reverse fatty acid synthesis induced by TIP30 deficiency. Furthermore, downregulating TIP30 activated the Akt/mTOR signaling pathway to upregulate SREBP1 expression, which promoted lipid metabolism by activating gene transcription of lipogenesis, including fasn and scd. We also showed that TIP30 deficiency-regulated lipid metabolism promoted proliferation of HCC cells. Clinically, our data revealed that TIP30 expression significantly correlated with SREBP1 in patients with HCC and that a combination of TIP30 and SREBP1 is a powerful predictor of HCC prognosis. Together, our data suggested a novel function of TIP30 in HCC progression and indicate that TIP30 regulation of SREBP1 may represent a novel target for HCC treatment.
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Xu T, Jin Z, Yuan Y, Zheng H, Li C, Hou W, Guo Q, Hua B. Tat-Interacting Protein 30 (TIP30) Expression Serves as a New Biomarker for Tumor Prognosis: A Systematic Review and Meta-Analysis. PLoS One 2016; 11:e0168408. [PMID: 28036326 PMCID: PMC5201241 DOI: 10.1371/journal.pone.0168408] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/29/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Tat-interacting protein 30 (TIP30) is a tumor suppressor protein that has been found to be expressed in a wide variety of tumor tissues. TIP30 is involved in the control of cell apoptosis, growth, metastasis, angiogenesis, DNA repair, and tumor cell metabolism. The methylation of the TIP30 promoter is also associated with tumor prognosis. To evaluate this topic further, we conducted a systematic meta-analysis to explore the clinicopathological and prognostic significance of TIP30 for tumor patients. METHODS We searched PubMed and EMBASE for eligible studies. We manually searched for printed journals and relevant textbooks. Subgroup analyses were performed based on the region, manuscript quality, methods of vasculogenic mimicry identification, pathology, and number of patients. RESULTS Fourteen studies with 1705 patients were included in this meta-analysis. A significant association was observed between high expression of TIP30 in patients with cancer with a good overall survival (hazard ratio = 0.53, 95% confidence interval: 0.41-0.69), and good recurrence-free survival or disease free survival (hazard ratio = 0.49, 95% confidence interval: 0.37-0.66). Lack of expression of TIP30 had an association with lymph node metastasis (odds ratio = 3.90, 95% confidence interval: 2.21-6.89) and high tumor node metastasis clinical stage (odds ratio = 2.10, 95% confidence interval: 1.68-2.62). The methylation of the TIP30 promoter did not significantly influence the overall survival (hazard ratio = 0.99, 95% confidence interval: 0.88-1.13) or disease free survival (hazard ratio = 0.62, 95% confidence interval: 0.19-2.02). CONCLUSIONS TIP30 expression is associated with a good prognosis in patients with tumors. Clinical studies with large samples are needed worldwide and standardized protocols should be adopted in the future to achieve a better understanding of the relationship between tumor prognosis and TIP30.
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Affiliation(s)
- Tao Xu
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
- Department of Oncology, Xiyuan Hospital, China Academy of Chinese Medicine Sciences, Haidian District, Beijing, China
| | - Zhichao Jin
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
| | - Yuan Yuan
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
- Beijing University of Chinese Medicine, Chaoyang District, Beijing, China
| | - Honggang Zheng
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
| | - Conghuang Li
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
| | - Wei Hou
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
| | - Qiujun Guo
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
- Beijing University of Chinese Medicine, Chaoyang District, Beijing, China
- * E-mail: (BH); (QG)
| | - Baojin Hua
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medicine Sciences, Xicheng District, Beijing, China
- * E-mail: (BH); (QG)
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Hu Y, Chen F, Liu F, Liu X, Huang N, Cai X, Sun Y, Li A, Luo R. Overexpression of TIP30 inhibits the growth and invasion of glioma cells. Mol Med Rep 2015; 13:605-12. [PMID: 26718891 PMCID: PMC4686083 DOI: 10.3892/mmr.2015.4619] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 06/04/2015] [Indexed: 12/15/2022] Open
Abstract
Glioma is an aggressive malignancy with limited effective treatment and poor prognosis. Therefore, the identification of novel prognostic markers and effective therapeutic targets is important for the treatment of human glioma. TIP30 is a tumor suppressor involved in the regulation of numerous cellular processes, including tumor cell growth, metastasis, and angiogenesis in various human cancers. The present study investigated whether Tat-interacting protein (TIP)30 was able to regulate tumorigenesis and predict the clinical outcome of patients with glioma. A total of 92 human glioma tissue samples and 10 normal brain tissue samples were examined by immunostaining. The results indicated that the expression levels of TIP30 significantly decreased in glioma tissue samples. as compared with normal brain tissue samples. Furthermore, TIP30 expression was inversely correlated with tumor histological classification, pathological grade, tumor size, and epidermal growth factor receptor (EGFR) expression; however, no association was detected between TIP30 expression and patient age and gender. In addition, patients with positive TIP30 expression exhibited significantly longer median overall survival rates, as compared with those with negative TIP30 expression. In vitro experiments revealed that upregulation of TIP30 expression by lentiviral vector transfection inhibited cell growth and induced cell apoptosis, as determined by MTT assay and Annexin V-fluorescein isothiocyanate staining, respectively. In addition, TIP30 expression markedly attenuated cell migration and invasion, as determined by wound healing and transwell assays. Upregulation of TIP30 expression in glioma cells decreased the expression levels of EGFR and its associated downstream molecules phosphorylated extracellular signal-regulated kinases (ERK) and phosphorylated AKT, as determined by western blot analysis. The results of the present study indicated that TIP30 may suppress oncogenesis and glioma progression, thereby improving the prognosis of patients with glioma. Therefore, TIP30 may prove useful as a prognostic biomarker, and as a potential target for glioma therapy.
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Affiliation(s)
- Yingying Hu
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Fengsheng Chen
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Feiye Liu
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Xinhui Liu
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Na Huang
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Xiaoli Cai
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Yi Sun
- Cancer Center, 3rd People's Hospital, Dongguan, Guangdong 523326, P.R. China
| | - Aimin Li
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
| | - Rongcheng Luo
- Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University, Guangzhou, Guangdong 510315, P.R. China
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Chen J, Zhu C, Zhu M, Geng M, Tian Y, Li G, Zheng H. Clinicopathologic significance and survival of TIP30 expression in laryngeal squamous cell carcinoma. Int J Clin Exp Med 2015; 8:6024-6031. [PMID: 26131199 PMCID: PMC4484035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/24/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND The expression and clinical significance of TIP30 and p53 in laryngeal squamous cell carcinoma (LSCC) have not been investigated. METHOD We determined immunohistochemically the expression of TIP30 and p53 in surgical specimens from 105 patients with LSCC. Survivals were estimated using the Kaplan-Meier method. RESULTS TIP30 protein expression in LSCC patients was significantly less in tumor tissues than that of adjacent normal tissues (46.7% vs. 79.0%), while p53 protein expression was significantly increased in LSCC (15.2% vs. 63.8%) compared with adjacent normal tissues. The TIP30 expression levels were also significantly correlated with tumor stage, differentiation, and the presence of lymph nodes. The expression of TIP30 was significantly negatively correlated with that of p53 (r = -0.249, P = 0.010). LSCC patients with lower expression level of TIP30 had a significantly higher recurrence and worse overall survival than those with elevated TIP30 expression (P = 0.014 and P = 0.040, respectively). Furthermore, multivariable analysis found that patients with high expression of TIP30 had a greater than approximately 2.2-fold increased risk for death overall or recurrence than those with low expression of TIP30, supporting that down-regulation of TIP30 expression in tumors may involve in development and progression and predict poor prognosis of patients with LSCC. CONCLUSION Our results may suggest that down-expression of TIP30 is closely related to carcinogenesis, progression, biological behavior, and prognosis of LSCC.
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Affiliation(s)
- Jianqiu Chen
- Department of Otolaryngology Head and Neck Surgery, Jinan General Hospital of PLAJinan 250031, Shandong Province, China
| | - Chunsheng Zhu
- Department of Otolaryngology Head and Neck Surgery, Jinan General Hospital of PLAJinan 250031, Shandong Province, China
| | - Minhui Zhu
- Department of Otolaryngology Head and Neck Surgery, Changhai Hospital of The Second Military Medical UniversityShanghai 200433, China
| | - Ming Geng
- Department of Pathology, Jinan General Hospital of PLAJinan 250031, Shandong Province, China
| | - Yongsheng Tian
- Department of Otolaryngology Head and Neck Surgery, Aerospace Center Hospital of Beijing UniversityBeijing 100049, China
| | - Guojun Li
- Department of Head and Neck Surgery, U.T. M.D. Anderson Cancer CenterHouston, TX 77030, USA
| | - Hongliang Zheng
- Department of Otolaryngology Head and Neck Surgery, Changhai Hospital of The Second Military Medical UniversityShanghai 200433, China
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Dong W, Shen R, Cheng S. Reduction of TIP30 in esophageal squamous cell carcinoma cells involves promoter methylation and microRNA-10b. Biochem Biophys Res Commun 2014; 453:772-7. [PMID: 25312779 DOI: 10.1016/j.bbrc.2014.10.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 10/06/2014] [Indexed: 10/24/2022]
Abstract
TIP30 is a putative tumor suppressor that can promote apoptosis and inhibit angiogenesis. However, the role of TIP30 in esophageal squamous cell carcinoma (ESCC) biology has not been investigated. Immunohistochemistry was used to investigate the expression of TIP30 in 70 ESCC. Hypermethylation of TIP30 was evaluated by the methylation specific PCR (MSP) method in ESCC (tumor and paired adjacent non-tumor tissues). Lost expression of TIP30 was observed in 50 of 70 (71.4%) ESCC. 61.4% (43 of 70) of primary tumors analyzed displayed TIP30 hypermethylation, indicating that this aberrant characteristic is common in ESCC. Moreover, a statistically significant inverse association was found between TIP30 methylation status and expression of the TIP30 protein in tumor tissues (p=0.001). We also found that microRNA-10b (miR-10b) targets a homologous DNA region in the 3'untranslated region of the TIP30 gene and represses its expression at the transcriptional level. Reporter assay with 3'UTR of TIP30 cloned downstream of the luciferase gene showed reduced luciferase activity in the presence of miR-10b, providing strong evidence that miR-10b is a direct regulator of TIP30. These results suggest that TIP30 expression is regulated by promoter methylation and miR-10b in ESCC.
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Affiliation(s)
- Wenjie Dong
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, China.
| | - Ruizhe Shen
- Department of Gastroenterology, Rui-jin Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shidan Cheng
- Department of Gastroenterology, Rui-jin Hospital, Shanghai Jiao Tong University, Shanghai, China
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Kumtepe Y, Halici Z, Sengul O, Kunak CS, Bayir Y, Kilic N, Cadirci E, Pulur A, Bayraktutan Z. High serum HTATIP2/TIP30 level in serous ovarian cancer as prognostic or diagnostic marker. Eur J Med Res 2013; 18:18. [PMID: 23800048 PMCID: PMC3695774 DOI: 10.1186/2047-783x-18-18] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 05/31/2013] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Human HIV-1 TAT interactive protein 2 (HTATIP2/TIP30) is an evolutionarily conserved gene that is expressed ubiquitously in human tissues and some tumor tissues. This protein has been found to be associated with some gynecological cancers; as such, this study aimed to investigate blood HTATIP2/TIP30 levels in patients with ovarian cancer. METHODS Twenty-three women with ovarian cancer and 18 patients with various non-cancerous gynecological complaints (for example, dysfunctional uterine bleeding, fibroids, and urinary incontinence) were included in the study. The pathological diagnosis of ovarian cancer was adenocarcinoma. HTATIP2/TIP30 concentration in the patients' blood samples was determined using ELISA kits. RESULTS The HTATIP2/TIP30 level was significantly higher in the cancer group than in the control group (1.84 ± 0.82 versus 0.57 ± 0.13 ng/ml, mean ± SD). CONCLUSIONS We demonstrated the potential role of HTATIP2/TIP30 in ovarian cancer for the first time, thereby enlightening future studies targeting HTATIP2/TIP30 in ovarian cancer treatment, diagnosis, and prevention.
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Affiliation(s)
- Yakup Kumtepe
- Department of Obstetrics and Gynecology, Ataturk University, Faculty of Medicine, Erzurum 25240, Turkey
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Lee SH, Ju SK, Lee TY, Huh SH, Han KH. TIP30 directly binds p53 tumor suppressor protein in vitro. Mol Cells 2012; 34:495-500. [PMID: 23178973 PMCID: PMC3887794 DOI: 10.1007/s10059-012-0232-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 10/08/2012] [Accepted: 10/09/2012] [Indexed: 01/03/2023] Open
Abstract
TIP30 (30 kDa HIV-1 TAT-interacting protein), also called HTATIP2 or CC3, is a tumor suppressor protein that acts as an angiogenesis inhibitor. TIP30 blocks nuclear import of the mRNA-binding protein HuR, and thereby promotes the cytoplasmic accumulation of HuR by binding to importin-β, which is known to facilitate the cytoplasm-tonuclear transport of HuR. Accumulation of HuR in the cytoplasm, in turn, enhances the expression of the transcription factor p53, a tumor suppressor that plays an essential role in preserving genome stability and inhibiting cancer growth. In addition to such a post-transcriptional mechanism via which TIP30 increases the p53 level, it has been proposed that TIP30 may regulate p53 protein at the protein level by directly binding to it. In order to investigate the possibility of direct interaction between p53 and TIP30, we have used on three functional regions in p53 and examined their interactions with TIP30 using GST pull-down assay and surface plasmon resonance technique. The results show that that TIP30 binds to the DNA-binding domain and the C-terminal domain of p53.
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Affiliation(s)
- Si-Hyung Lee
- Biomedical Translational Research Center, Division of Convergent Biomedical Research, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806,
Korea
- Department of Biochemistry, Graduate School, Chungnam National University, Daejeon 305-764,
Korea
| | - Sung-Kyu Ju
- Department of Bioscience and Biotechnology, College of Biological Sciences and Biotechnology, Chungnam National University, Daejeon 305-764,
Korea
| | - Tae-Young Lee
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806,
Korea
| | - Sung-Ho Huh
- Department of Biochemistry, Graduate School, Chungnam National University, Daejeon 305-764,
Korea
| | - Kyou-Hoon Han
- Biomedical Translational Research Center, Division of Convergent Biomedical Research, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806,
Korea
- Department of Bioinformatics, University of Science and Technology, Daejeon 305-333,
Korea
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Chen X, Cao X, Dong W, Luo S, Suo Z, Jin Y. Expression of TIP30 tumor suppressor gene is down-regulated in human colorectal carcinoma. Dig Dis Sci 2010; 55:2219-26. [PMID: 19798571 DOI: 10.1007/s10620-009-0992-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Accepted: 09/14/2009] [Indexed: 12/09/2022]
Abstract
PURPOSE Human TIP30 was initially identified as a candidate metastasis suppressor gene whose expression was down-regulated in human liver, lung, breast, and prostate cancers, and recently the role of this gene was examined in colorectal cancer. The aim of this study was to determine the level of TIP30 expression in colorectal carcinoma (CRC). RESULTS TIP30 protein levels were lower in colorectal carcinomas compared to normal tissue from the control group (P < 0.001). The frequencies of hypermethylation of TIP30 in tumor were 36%, while there was no aberrant methylation in paired adjacent non-tumor tissue. A statistically significant inverse association was found between TIP30 methylation status and expression of the TIP30 protein in tumor tissues (P = 0.006). Somatic missense mutations in the TIP30 gene were identified in human CRC tissue specimens. CONCLUSIONS Our results demonstrate that promoter methylation is involved in the decreased expression of TIP30 tumor suppressor gene in human colorectal carcinoma.
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Affiliation(s)
- Xiaobing Chen
- Department of Internal Medicine-Oncology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
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Nakahara J, Aiso S, Suzuki N. Factors that retard remyelination in multiple sclerosis with a focus on TIP30: a novel therapeutic target. Expert Opin Ther Targets 2009; 13:1375-86. [DOI: 10.1517/14728220903307491] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Tip30-induced apoptosis requires translocation of Bax and involves mitochondrial release of cytochrome c and Smac/DIABLO in hepatocellular carcinoma cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2008; 1783:263-74. [DOI: 10.1016/j.bbamcr.2007.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Revised: 10/05/2007] [Accepted: 10/10/2007] [Indexed: 11/22/2022]
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Cloning, expression, purification, and characterization of AmphiTip30, a member of short-chain dehydrogenases/reductases family from the amphioxus Branchiostoma belcheri tsingtauense. Protein Expr Purif 2007; 57:63-71. [PMID: 17950618 DOI: 10.1016/j.pep.2007.08.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2007] [Revised: 08/10/2007] [Accepted: 08/21/2007] [Indexed: 11/23/2022]
Abstract
In this paper we describe the cloning, expression and identification study of the TIP30 gene from amphioxus (Branchiostoma belcheri). The amphioxus TIP30 cDNA is comprised of 1499 bp and is translated in one open-reading frame to give a protein of 237 amino acids, with a predicted 23 amino acids signal peptide, a 147 bp 5'-UTR and a 638 bp 3'-UTR. A multiple alignment of TIP30 from amphioxus with other known TIP30 sequences shows the conservation of most amino acid residues involved in the peculiar structural domains found within TIP30's. Phylogenetic analysis places AmphiTIP30 at the base of the phylogenetic tree, suggesting that AmphiTIP30 is the archetype of the vertebrate TIP30 genes. We express the amphioxus TIP30 gene in Escherichia coli. driven by T7 promoter. The recombinant amphioxus TIP30 protein was purified by HisTrap affinity column. Subsequently, the binding constant and enzyme activity was mensurated. Western blot and immunohistochemistry analysis confirmed that amphioxus has a native molecular mass of approximately 26 kDa, and TIP30 was strongly expressed in ovary. Finally, the initial function of TIP30 is discussed.
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Harvey BG, Heguy A, Leopold PL, Carolan BJ, Ferris B, Crystal RG. Modification of gene expression of the small airway epithelium in response to cigarette smoking. J Mol Med (Berl) 2006; 85:39-53. [PMID: 17115125 DOI: 10.1007/s00109-006-0103-z] [Citation(s) in RCA: 165] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2006] [Revised: 05/25/2006] [Accepted: 05/29/2006] [Indexed: 11/28/2022]
Abstract
The earliest morphologic evidence of changes in the airways associated with chronic cigarette smoking is in the small airways. To help understand how smoking modifies small airway structure and function, we developed a strategy using fiberoptic bronchoscopy and brushing to sample the human small airway (10th-12th order) bronchial epithelium to assess gene expression (Affymetrix HG-U133A and HG-133 Plus 2.0 array) in phenotypically normal smokers (n = 16, 25 +/- 7 pack-years) compared to matched nonsmokers (n = 17). Compared to samples from large (second to third order) bronchi, the small airway samples had a higher proportion of ciliated cells, but less basal, undifferentiated, and secretory cells, and contained Clara cells. Even though the smokers were phenotypically normal, microarray analysis of gene expression of the small airway epithelium of the smokers compared to the nonsmokers demonstrated up- and downregulation of genes in multiple categories relevant to the pathogenesis of chronic obstructive lung disease (COPD), including genes coding for cytokines/innate immunity, apoptosis, mucin, response to oxidants and xenobiotics, and general cellular processes. In the context that COPD starts in the small airways, these gene expression changes in the small airway epithelium in phenotypically normal smokers are candidates for the development of therapeutic strategies to prevent the onset of COPD.
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Affiliation(s)
- Ben-Gary Harvey
- Division of Pulmonary and Critical Care Medicine, Weill Medical College of Cornell University, New York, NY 10021, USA
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