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Wang D, Wang W, Song M, Xie Y, Kuang W, Yang P. Regulation of protein phosphorylation by PTPN2 and its small-molecule inhibitors/degraders as a potential disease treatment strategy. Eur J Med Chem 2024; 277:116774. [PMID: 39178726 DOI: 10.1016/j.ejmech.2024.116774] [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: 07/04/2024] [Revised: 08/09/2024] [Accepted: 08/12/2024] [Indexed: 08/26/2024]
Abstract
Protein tyrosine phosphatase nonreceptor type 2 (PTPN2) is an enzyme that dephosphorylates proteins with tyrosine residues, thereby modulating relevant signaling pathways in vivo. PTPN2 acts as tumor suppressor or tumor promoter depending on the context. In some cancers, such as colorectal, and lung cancer, PTPN2 defects could impair the protein tyrosine kinase pathway, which is often over-activated in cancer cells, and inhibit tumor development and progression. However, PTPN2 can also suppress tumor immunity by regulating immune cells and cytokines. The structure, functions, and substrates of PTPN2 in various tumor cells were reviewed in this paper. And we summarized the research status of small molecule inhibitors and degraders of PTPN2. It also highlights the potential opportunities and challenges for developing PTPN2 inhibitors as anticancer drugs.
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Affiliation(s)
- Dawei Wang
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Wenmu Wang
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Mingge Song
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yishi Xie
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Wenbin Kuang
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiang Su Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; Institute of Innovative Drug Discovery and Development, China Pharmaceutical University, Nanjing 211198, China.
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2
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Asare O, Ayala Y, Hafeez BB, Ramirez-Correa GA, Cho YY, Kim DJ. Ultraviolet Radiation Exposure and its Impacts on Cutaneous Phosphorylation Signaling in Carcinogenesis: Focusing on Protein Tyrosine Phosphatases †. Photochem Photobiol 2022; 99:344-355. [PMID: 36029171 DOI: 10.1111/php.13703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/23/2022] [Indexed: 01/14/2023]
Abstract
Sunlight exposure is a significant risk factor for UV-induced deteriorating transformations of epidermal homeostasis leading to skin carcinogenesis. The ability of UVB radiation to cause melanoma, as well as basal and squamous cell carcinomas, makes UVB the most harmful among the three known UV ranges. UVB-induced DNA mutations and dysregulation of signaling pathways contribute to skin cancer formation. Among various signaling pathways modulated by UVB, tyrosine phosphorylation signaling which is mediated by the action of protein tyrosine kinases (PTKs) on specific tyrosine residues is highly implicated in photocarcinogenesis. Following UVB irradiation, PTKs get activated and their downstream signaling pathways contribute to photocarcinogenesis by promoting the survival of damaged keratinocytes and increasing cell proliferation. While UVB activates oncogenic signaling pathways, it can also activate tumor suppressive signaling pathways as initial protective mechanisms to maintain epidermal homeostasis. Tyrosine dephosphorylation is one of the protective mechanisms and is mediated by the action of protein tyrosine phosphatases (PTPs). PTP can counteract UVB-mediated PTK activation and downregulate oncogenic signaling pathways. However, PTPs have not been studied extensively in photocarcinogenesis with previous studies regarding their inactivation induced by UVB. This current review will summarize the recent progress in the protective function of PTPs in epidermal photocarcinogenesis.
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Affiliation(s)
- Obed Asare
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX
| | - Yasmin Ayala
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX
| | - Bilal Bin Hafeez
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX.,South Texas Center for Excellence in Cancer Research, University of Texas Rio Grande Valley, Edinburg, TX
| | - Genaro A Ramirez-Correa
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Korea
| | - Dae Joon Kim
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX.,South Texas Center for Excellence in Cancer Research, University of Texas Rio Grande Valley, Edinburg, TX.,Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX
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3
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Dickinson SE, Khawam M, Kirschnerova V, Vaishampayan P, Centuori SM, Saboda K, Calvert VS, Petricoin EF, Curiel-Lewandrowski C. Increased PD-L1 Expression in Human Skin Acutely and Chronically Exposed to UV Irradiation. Photochem Photobiol 2021; 97:778-784. [PMID: 33615483 DOI: 10.1111/php.13406] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/18/2021] [Indexed: 01/22/2023]
Abstract
Overexpression of PD-L1 (CD274) on tumor cells may represent a hallmark of immune evasion, and overexpression has been documented in several tumors including cutaneous squamous cell carcinoma (cSCC). While PD-L1/PD-1 activity in the skin has been primarily described in inflammatory models, our goal was to examine PD-L1 expression in human keratinocytes exposed to UV irradiation. We assessed PD-L1 expression in human sun-protected (SP) and sun-damaged (SD) skin, actinic keratosis (AK), and cSCC using IHC and protein microarray. Both methods found low baseline levels of PD-L1 in SP and SD skin and significantly increased expression in cSCC. Next, we examined PD-L1 expression in acute models of UV exposure. In human SP skin exposed to 2-3 MED of UV (n = 20), epidermal PD-L1 was induced in 70% of subjects after 24 h (P = 0.0001). SKH-1 mice exposed to acute UV also showed significant epidermal PD-L1 induction at 16, 24 and 48 h. A time- and dose-dependent induction of PD-L1 was confirmed in cultured human keratinocytes after UV, which was markedly reduced in the presence of MEK/ERK, JNK or STAT3 inhibitors. These findings suggest that UV induces upregulation of PD-L1 through established, pharmacologically targetable stress-signaling pathways in keratinocytes.
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Affiliation(s)
- Sally E Dickinson
- Department of Pharmacology, University of Arizona, Tucson, AZ.,University of Arizona Cancer Center, Tucson, AZ
| | | | | | | | - Sara M Centuori
- University of Arizona Cancer Center, Tucson, AZ.,Department of Medicine, University of Arizona, Tucson, AZ
| | | | - Valerie S Calvert
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA
| | - Emanuel F Petricoin
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA
| | - Clara Curiel-Lewandrowski
- University of Arizona Cancer Center, Tucson, AZ.,College of Medicine, Division of Dermatology, University of Arizona, Tucson, AZ
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4
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Kim BR, Ha J, Cho EK&S. Regulation of signal transducer and activator of transcription 3 activation by dual-specificity phosphatase 3. BMB Rep 2020. [PMID: 32475380 PMCID: PMC7330810 DOI: 10.5483/bmbrep.2020.53.6.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Since cancer is the leading cause of death worldwide, there is an urgent need to understand the mechanisms underlying cancer progression and the development of cancer inhibitors. Signal transducer and activator of transcription 3 (STAT3) is a major transcription factor that regulates the proliferation and survival of various cancer cells. Here, dual-specificity phosphatase 3 (DUSP3) was identified as a regulator of STAT3 based on an interaction screening performed using the protein tyrosine phosphatase library. DUSP3 interacted with the C-terminal domain of STAT3 and dephosphorylated p-Y705 of STAT3. In vitro dephosphorylation assay revealed that DUSP3 directly dephosphorylated p-STAT3. The suppressive effects of DUSP3 on STAT3 were evaluated by a decreased STAT3-specific promoter activity, which in turn reduced the expression of the downstream target genes of STAT3. In summary, DUSP3 downregulated the transcriptional activity of STAT3 via dephosphorylation at Y705 and also suppressed the migratory activity of cancer cells. This study demonstrated that DUSP3 inhibits interleukin 6 (IL-6)/STAT3 signaling and is expected to regulate cancer development. Novel functions of DUSP3 discovered in IL-6/STAT3 signaling regulation would help expand the understanding of cancer development mechanisms.
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Affiliation(s)
- Ba Reum Kim
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Jain Ha
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Eunjeong Kang & Sayeon Cho
- Laboratory of Molecular and Pharmacological Cell Biology, College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
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5
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Kim M, Morales LD, Lee CJ, Olivarez SA, Kim WJ, Hernandez J, Mummidi S, Jenkinson C, Tsin AT, Jang IS, Slaga TJ, Kim DJ. Overexpression of TC-PTP in murine epidermis attenuates skin tumor formation. Oncogene 2020; 39:4241-4256. [PMID: 32286519 PMCID: PMC7244373 DOI: 10.1038/s41388-020-1282-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 03/18/2020] [Accepted: 03/23/2020] [Indexed: 02/07/2023]
Abstract
T-cell protein tyrosine phosphatase (TC-PTP), encoded by Ptpn2, has been shown to function as a tumor suppressor during skin carcinogenesis. In the current study, we generated a novel epidermal-specific TC-PTP-overexpressing (K5HA.Ptpn2) mouse model to show that TC-PTP contributes to the attenuation of chemically induced skin carcinogenesis through the synergistic regulation of STAT1, STAT3, STAT5, and PI3K/AKT signaling. We found overexpression of TC-PTP increased epidermal sensitivity to DMBA-induced apoptosis and it decreased TPA-mediated hyperproliferation, coinciding with reduced epidermal thickness. Inhibition of STAT1, STAT3, STAT5, or AKT reversed the effects of TC-PTP overexpression on epidermal survival and proliferation. Mice overexpressing TC-PTP in the epidermis developed significantly reduced numbers of tumors during skin carcinogenesis and presented a prolonged latency of tumor initiation. Examination of human papillomas and squamous cell carcinomas (SCCs) revealed that TC-PTP expression was significantly reduced and TC-PTP expression was inversely correlated with the increased grade of SCCs. Our findings demonstrate that TC-PTP is a potential therapeutic target for the prevention of human skin cancer given that it is a major negative regulator of oncogenic signaling.
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Affiliation(s)
- Mihwa Kim
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Liza D Morales
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Cheol Jung Lee
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Serena A Olivarez
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Woo Jin Kim
- School of Mathematical and Statistical Sciences, College of Sciences, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Joselin Hernandez
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Srinivas Mummidi
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Christopher Jenkinson
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Andrew T Tsin
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon, 305-333, Republic of Korea
| | - Thomas J Slaga
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Dae Joon Kim
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.
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6
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Kramer F, Dernedde J, Mezheyeuski A, Tauber R, Micke P, Kappert K. Platelet-derived growth factor receptor β activation and regulation in murine myelofibrosis. Haematologica 2019; 105:2083-2094. [PMID: 31672904 PMCID: PMC7395273 DOI: 10.3324/haematol.2019.226332] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/29/2019] [Indexed: 12/17/2022] Open
Abstract
There is prevailing evidence to suggest a decisive role for platelet-derived growth factors (PDGF) and their receptors in primary myelofibrosis. While PDGF receptor β (PDGFRβ) expression is increased in bone marrow stromal cells of patients correlating with the grade of myelofibrosis, knowledge on the precise role of PDGFRβ signaling in myelofibrosis is sparse. Using the Gata-1low mouse model for myelofibrosis, we applied RNA sequencing, protein expression analyses, multispectral imaging and, as a novel approach in bone marrow tissue, an in situ proximity ligation assay to provide a detailed characterization of PDGFRβ signaling and regulation during development of myelofibrosis. We observed an increase in PDGFRβ and PDGF-B protein expression in overt fibrotic bone marrow, along with an increase in PDGFRβ–PDGF-B interaction, analyzed by proximity ligation assay. However, PDGFRβ tyrosine phosphorylation levels were not increased. We therefore focused on regulation of PDGFRβ by protein tyrosine phosphatases as endogenous PDGFRβ antagonists. Gene expression analyses showed distinct expression dynamics among PDGFRβ-targeting phosphatases. In particular, we observed enhanced T-cell protein tyrosine phosphatase protein expression and PDGFRβ–T-cell protein tyrosine phosphatase interaction in early and overt fibrotic bone marrow of Gata-1low mice. In vitro, T-cell protein tyrosine phosphatase (Ptpn2) knockdown increased PDGFRβ phosphorylation at Y751 and Y1021, leading to enhanced downstream signaling in fibroblasts. Furthermore, Ptpn2 knockdown cells showed increased growth rates when exposed to low-serum growth medium. Taken together, PDGF signaling is differentially regulated during myelofibrosis. Protein tyrosine phosphatases, which have so far not been examined during disease progression, are novel and hitherto unrecognized components in myelofibrosis.
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Affiliation(s)
- Frederike Kramer
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Berlin, Germany.,Charité -Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Cardiovascular Research (CCR), Berlin, Germany
| | - Jens Dernedde
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Berlin, Germany
| | - Artur Mezheyeuski
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Rudolf Tauber
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Berlin, Germany
| | - Patrick Micke
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Kai Kappert
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Berlin, Germany .,Charité -Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Center for Cardiovascular Research (CCR), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany
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7
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Morales LD, Archbold AK, Olivarez S, Slaga TJ, DiGiovanni J, Kim DJ. The role of T-cell protein tyrosine phosphatase in epithelial carcinogenesis. Mol Carcinog 2019; 58:1640-1647. [PMID: 31264291 PMCID: PMC6692238 DOI: 10.1002/mc.23078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
Abstract
T-cell protein tyrosine phosphatase (TC-PTP, encoded by PTPN2) is a nonreceptor PTP that is most highly expressed in hematopoietic tissues. TC-PTP modulates a variety of physiological functions including cell cycle progression, cell survival and proliferation, and hematopoiesis through tyrosine dephosphorylation of its target substrates, such as EGFR, JAK1, JAK3, STAT1, and STAT3. Studies with whole or tissue-specific loss of TC-PTP function transgenic mice have shown that TC-PTP has crucial roles in the regulation of the immune response, insulin signaling, and oncogenic signaling. More recently, the generation of epidermal-specific TC-PTP-deficient mice for use in multistage skin carcinogenesis bioassays demonstrated that TC-PTP suppresses skin tumor formation by negatively regulating STAT3 and AKT signaling. Further investigation showed that TC-PTP also minimizes UVB-induced epidermal cell damage by promoting apoptosis through the negative regulation of Flk-1/JNK signaling. These findings provide major evidence for a tumor suppressive function for TC-PTP against environment-induced skin cancer. Here, we will discuss TC-PTP, its substrates, and its functions with an emphasis on its role in skin carcinogenesis.
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Affiliation(s)
- Liza D. Morales
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
- South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Anna K. Archbold
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Serena Olivarez
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
| | - Thomas J. Slaga
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX
| | - John DiGiovanni
- Division of Pharmacology & Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX 78723, USA
| | - Dae Joon Kim
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
- Department of Molecular Science, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78541, USA
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8
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Protein Tyrosine Phosphatases as Potential Regulators of STAT3 Signaling. Int J Mol Sci 2018; 19:ijms19092708. [PMID: 30208623 PMCID: PMC6164089 DOI: 10.3390/ijms19092708] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/29/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023] Open
Abstract
The signal transducer and activator of transcription 3 (STAT3) protein is a major transcription factor involved in many cellular processes, such as cell growth and proliferation, differentiation, migration, and cell death or cell apoptosis. It is activated in response to a variety of extracellular stimuli including cytokines and growth factors. The aberrant activation of STAT3 contributes to several human diseases, particularly cancer. Consequently, STAT3-mediated signaling continues to be extensively studied in order to identify potential targets for the development of new and more effective clinical therapeutics. STAT3 activation can be regulated, either positively or negatively, by different posttranslational mechanisms including serine or tyrosine phosphorylation/dephosphorylation, acetylation, or demethylation. One of the major mechanisms that negatively regulates STAT3 activation is dephosphorylation of the tyrosine residue essential for its activation by protein tyrosine phosphatases (PTPs). There are seven PTPs that have been shown to dephosphorylate STAT3 and, thereby, regulate STAT3 signaling: PTP receptor-type D (PTPRD), PTP receptor-type T (PTPRT), PTP receptor-type K (PTPRK), Src homology region 2 (SH-2) domain-containing phosphatase 1(SHP1), SH-2 domain-containing phosphatase 2 (SHP2), MEG2/PTP non-receptor type 9 (PTPN9), and T-cell PTP (TC-PTP)/PTP non-receptor type 2 (PTPN2). These regulators have great potential as targets for the development of more effective therapies against human disease, including cancer.
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9
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Kim M, Baek M, Kim DJ. Protein Tyrosine Signaling and its Potential Therapeutic Implications in Carcinogenesis. Curr Pharm Des 2018. [PMID: 28625132 DOI: 10.2174/1381612823666170616082125] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Protein tyrosine phosphorylation is a crucial signaling mechanism that plays a role in epithelial carcinogenesis. Protein tyrosine kinases (PTKs) control various cellular processes including growth, differentiation, metabolism, and motility by activating major signaling pathways including STAT3, AKT, and MAPK. Genetic mutation of PTKs and/or prolonged activation of PTKs and their downstream pathways can lead to the development of epithelial cancer. Therefore, PTKs became an attractive target for cancer prevention. PTK inhibitors are continuously being developed, and they are currently used for the treatment of cancers that show a high expression of PTKs. Protein tyrosine phosphatases (PTPs), the homeostatic counterpart of PTKs, negatively regulate the rate and duration of phosphotyrosine signaling. PTPs initially were considered to be only housekeeping enzymes with low specificity. However, recent studies have demonstrated that PTPs can function as either tumor suppressors or tumor promoters, depending on their target substrates. Together, both PTK and PTP signal transduction pathways are potential therapeutic targets for cancer prevention and treatment.
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Affiliation(s)
- Mihwa Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Minwoo Baek
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
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10
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Baek M, Kim M, Lim JS, Morales LD, Hernandez J, Mummidi S, Williams-Blangero S, Jang IS, Tsin AT, Kim DJ. Epidermal-specific deletion of TC-PTP promotes UVB-induced epidermal cell survival through the regulation of Flk-1/JNK signaling. Cell Death Dis 2018; 9:730. [PMID: 29955047 PMCID: PMC6023867 DOI: 10.1038/s41419-018-0781-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/24/2018] [Accepted: 06/04/2018] [Indexed: 01/27/2023]
Abstract
UVB exposure can contribute to the development of skin cancer by modulating protein tyrosine kinase (PTK) signaling. It has been suggested that UVB radiation increases the ligand-dependent activation of PTKs and induces PTP inactivation. Our recent studies have shown that T-cell protein tyrosine phosphatase (TC-PTP) attenuates skin carcinogenesis induced by chemical regimens, which indicates its critical role in the prevention of skin cancer. In the current work, we report that TC-PTP increases keratinocyte susceptibility to UVB-induced apoptosis via the downregulation of Flk-1/JNK signaling. We showed that loss of TC-PTP led to resistance to UVB-induced apoptosis in vivo epidermis. We established immortalized primary keratinocytes (IPKs) from epidermal-specific TC-PTP-deficient (K14Cre.Ptpn2fl/fl) mice. Immortalized TC-PTP-deficient keratinocytes (TC-PTP/KO IPKs) showed increased cell survival against UVB-induced apoptosis which was concomitant with a UVB-mediated increase in Flk-1 phosphorylation, especially on tyrosine residue 1173. Inhibition of Flk-1 by either its specific inhibitors or siRNA in TC-PTP/KO IPKs reversed this effect and significantly increased cell death after UVB irradiation in comparison with untreated TC-PTP/KO IPKs. Immunoprecipitation analysis using the TC-PTP substrate-trapping mutant TCPTP-D182A indicated that TC-PTP directly interacts with Flk-1 to dephosphorylate it and their interaction was stimulated by UVB. Following UVB-mediated Flk-1 activation, the level of JNK phosphorylation was also significantly increased in TC-PTP/KO IPKs compared to control IPKs. Similar to our results with Flk-1, treatment of TC-PTP/KO IPKs with the JNK inhibitor SP600125 significantly increased apoptosis after UVB irradiation, confirming that the effect of TC-PTP on UVB-mediated apoptosis is regulated by Flk-1/JNK signaling. Western blot analysis showed that both phosphorylated Flk-1 and phosphorylated JNK were significantly increased in the epidermis of TC-PTP-deficient mice compared to control mice following UVB. Our results suggest that TC-PTP plays a protective role against UVB-induced keratinocyte cell damage by promoting apoptosis via negative regulation of Flk-1/JNK survival signaling.
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Affiliation(s)
- Minwoo Baek
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,College of Pharmacy, University of Minnesota, Duluth, MN, USA
| | - Mihwa Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Jae Sung Lim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Liza D Morales
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Joselin Hernandez
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Srinivas Mummidi
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Sarah Williams-Blangero
- Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon, 305-333, Republic of Korea
| | - Andrew T Tsin
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA. .,Department of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.
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11
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Le HTT, Cho YC, Cho S. Inhibition of protein tyrosine phosphatase non-receptor type 2 by PTP inhibitor XIX: Its role as a multiphosphatase inhibitor. BMB Rep 2018; 50:329-334. [PMID: 28228214 PMCID: PMC5498144 DOI: 10.5483/bmbrep.2017.50.6.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Indexed: 11/20/2022] Open
Abstract
Protein tyrosine phosphatases (PTPs) play crucial roles in signal transduction and their functional alteration has been detected in many diseases. PTP inhibitors have been developed as therapeutic drugs for diseases that are related to the activity of PTPs. In this study, PTP inhibitor XIX, an inhibitor of CD45 and PTEN, was investigated whether it inhibits other PTPs. Protein tyrosine phosphatase non-receptor type 2 (PTPN2) was selectively inhibited by the inhibitor in a competitive manner. Drug affinity responsive target stability (DARTS) analysis showed that the inhibitor induces conformational changes in PTPN2. Phosphorylation levels of signal transducer and activator of transcription 3 (STAT3) at Tyr-705, a crucial site for STAT3 activation and target site of PTPN2, decreased upon exposure to the inhibitor. Our results suggest that PTP inhibitor XIX might be considered as an effective regulator of PTPN2 for treating diseases related to PTPN2.
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Affiliation(s)
- Hien Thi Thu Le
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Young-Chang Cho
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
| | - Sayeon Cho
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea
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12
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Blohm-Mangone K, Burkett NB, Tahsin S, Myrdal PB, Aodah A, Ho B, Janda J, McComas M, Saboda K, Roe DJ, Dong Z, Bode AM, Petricoin EF, Calvert VS, Curiel-Lewandrowski C, Alberts DS, Wondrak GT, Dickinson SE. Pharmacological TLR4 Antagonism Using Topical Resatorvid Blocks Solar UV-Induced Skin Tumorigenesis in SKH-1 Mice. Cancer Prev Res (Phila) 2018; 11:265-278. [PMID: 29437671 DOI: 10.1158/1940-6207.capr-17-0349] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 01/02/2018] [Accepted: 01/19/2018] [Indexed: 02/06/2023]
Abstract
An urgent need exists for the development of more efficacious molecular strategies targeting nonmelanoma skin cancer (NMSC), the most common malignancy worldwide. Inflammatory signaling downstream of Toll-like receptor 4 (TLR4) has been implicated in several forms of tumorigenesis, yet its role in solar UV-induced skin carcinogenesis remains undefined. We have previously shown in keratinocyte cell culture and SKH-1 mouse epidermis that topical application of the specific TLR4 antagonist resatorvid (TAK-242) blocks acute UV-induced AP-1 and NF-κB signaling, associated with downregulation of inflammatory mediators and MAP kinase phosphorylation. We therefore explored TLR4 as a novel target for chemoprevention of UV-induced NMSC. We selected the clinical TLR4 antagonist resatorvid based upon target specificity, potency, and physicochemical properties. Here, we confirm using ex vivo permeability assays that topical resatorvid can be effectively delivered to skin, and using in vivo studies that topical resatorvid can block UV-induced AP-1 activation in mouse epidermis. We also report that in a UV-induced skin tumorigenesis model, topical resatorvid displays potent photochemopreventive activity, significantly suppressing tumor area and multiplicity. Tumors harvested from resatorvid-treated mice display reduced activity of UV-associated signaling pathways and a corresponding increase in apoptosis compared with tumors from control animals. Further mechanistic insight on resatorvid-based photochemoprevention was obtained from unsupervised hierarchical clustering analysis of protein readouts via reverse-phase protein microarray revealing a significant attenuation of key UV-induced proteomic changes by resatorvid in chronically treated high-risk SKH-1 skin prior to tumorigenesis. Taken together, our data identify TLR4 as a novel molecular target for topical photochemoprevention of NMSC. Cancer Prev Res; 11(5); 265-78. ©2018 AACRSee related editorial by Sfanos, p. 251.
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Affiliation(s)
| | | | - Shekha Tahsin
- The University of Arizona Cancer Center, Tucson, Arizona
| | - Paul B Myrdal
- Department of Pharmacy Practice and Science, The University of Arizona, Tucson, Arizona
| | - Alhassan Aodah
- Department of Pharmacy Practice and Science, The University of Arizona, Tucson, Arizona.,The National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Brenda Ho
- The University of Arizona Cancer Center, Tucson, Arizona
| | - Jaroslav Janda
- The University of Arizona Cancer Center, Tucson, Arizona
| | | | | | - Denise J Roe
- The University of Arizona Cancer Center, Tucson, Arizona.,Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, Arizona
| | - Zigang Dong
- Department of Molecular Medicine and Biopharmaceutical Sciences, The Hormel Institute, The University of Minnesota, Austin, Minnesota
| | - Ann M Bode
- Department of Molecular Medicine and Biopharmaceutical Sciences, The Hormel Institute, The University of Minnesota, Austin, Minnesota
| | - Emanuel F Petricoin
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia
| | - Valerie S Calvert
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, Virginia
| | - Clara Curiel-Lewandrowski
- The University of Arizona Cancer Center, Tucson, Arizona.,Department of Medicine, The University of Arizona, Tucson, Arizona
| | - David S Alberts
- The University of Arizona Cancer Center, Tucson, Arizona.,Department of Medicine, The University of Arizona, Tucson, Arizona
| | - Georg T Wondrak
- The University of Arizona Cancer Center, Tucson, Arizona.,Department of Pharmacology and Toxicology, The University of Arizona, Tucson, Arizona
| | - Sally E Dickinson
- The University of Arizona Cancer Center, Tucson, Arizona. .,Department of Pharmacology, The University of Arizona, Tucson, Arizona
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13
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Kim M, Morales LD, Baek M, Slaga TJ, DiGiovanni J, Kim DJ. UVB-induced nuclear translocation of TC-PTP by AKT/14-3-3σ axis inhibits keratinocyte survival and proliferation. Oncotarget 2017; 8:90674-90692. [PMID: 29207596 PMCID: PMC5710877 DOI: 10.18632/oncotarget.21794] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/15/2017] [Indexed: 12/28/2022] Open
Abstract
Understanding protein subcellular localization is important to determining the functional role of specific proteins. T-cell protein tyrosine phosphatase (TC-PTP) contains bipartite nuclear localization signals (NLSI and NLSII) in its C-terminus. We previously have demonstrated that the nuclear form of TC-PTP (TC45) is mainly localized to the cytoplasm in keratinocytes and it is translocated to the nucleus following UVB irradiation. Here, we report that TC45 is translocated by an AKT/14-3-3σ-mediated mechanism in response to UVB exposure, resulting in increased apoptosis and decreased keratinocyte proliferation. We demonstrate that UVB irradiation increased phosphorylation of AKT and induced nuclear translocation of 14-3-3σ and TC45. However, inhibition of AKT blocked nuclear translocation of TC45 and 14-3-3σ. Site-directed mutagenesis of 14-3-3σ binding sites within TC45 showed that a substitution at Threonine 179 (TC45/T179A) effectively blocked UVB-induced nuclear translocation of ectopic TC45 due to the disruption of the direct binding between TC45 and 14-3-3σ. Overexpression of TC45/T179A in keratinocytes resulted in a decrease of UVB-induced apoptosis which corresponded to an increase in nuclear phosphorylated STAT3, and cell proliferation was higher in TC45/T179A-overexpressing keratinocytes compared to control keratinocytes following UVB irradiation. Furthermore, deletion of TC45 NLSII blocked its UVB-induced nuclear translocation, indicating that both T179 and NLSII are required. Taken together, our findings suggest that AKT and 14-3-3σ cooperatively regulate TC45 nuclear translocation in a critical step of an early protective mechanism against UVB exposure that signals the deactivation of STAT3 in order to promote keratinocyte cell death and inhibit keratinocyte proliferation.
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Affiliation(s)
- Mihwa Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Liza D Morales
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA.,South Texas Diabetes and Obesity Institute, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Minwoo Baek
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
| | - Thomas J Slaga
- Department of Pharmacology, School of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - John DiGiovanni
- Division of Pharmacology & Toxicology, College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX, USA
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14
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Ran LW, Wang H, Lan D, Jia HX, Yu SS. Effects of RNA interference combined with ultrasonic irradiation and SonoVue microbubbles on expression of STAT3 gene in keratinocytes of psoriatic lesions. ACTA ACUST UNITED AC 2017; 37:279-285. [PMID: 28397054 DOI: 10.1007/s11596-017-1728-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 03/01/2017] [Indexed: 01/25/2023]
Abstract
The most effective sequence of small interfering RNA (siRNA) silencing STAT3 of psoriatic keratinocytes (KCs) was screened out, and the effects of the most effective siRNA combined with ultrasonic irradiation and SonoVue microbubbles on the expression of STAT3 of KCs and the dose- and time-response were investigated. Three chemically-synthetic siRNAs targeting STAT3 carried by Lipofectamine 3000 were transfected into KCs, and the effects on STAT3 expression were detected, then the most effective siRNA was selected for the subsequent experiments. The negative controls of siRNA (siRNA-NC) labeled with Cy3 carried by Lipofectamine 3000 combined with ultrasonic irradiation and SonoVue microbubbles were transfected into KCs, then the optimal parameters of ultrasonic irradiation were determined. The most effective siRNA carried by Li-pofectamine 3000 combined with ultrasonic irradiation at the optimal parameters and SonoVue microbubbles was transfected into KCs, and the dose- and time-response of RNA interference was determined. The effect of RNA interference by the most effective siRNA at the optimal time and dose carried by Lipofectamine 3000 combined with ultrasonic irradiation and SonoVue microbubbles (LUS group) was compared with that only carried by Li-pofectamine 3000 (L group). The results showed that siRNA-3 achieved the highest silencing efficacy. 0.5 W/cm2 and 30 s were selected as the parameters of ultrasonic irradiation. The siRNA-3 carried by Lipofectamine 3000 combined with ultrasonic irradiation and SonoVue microbubbles could effectively knock down the STAT3 expression at mRNA and protein levels in dose- and time-dependent manners determined at 100 nmol/L with maximum downregulation on mRNA at 48 h, and on protein at 72 h after transfection. The LUS group achieved the highest silencing efficacy. It was concluded that siRNA-3 carried by Lipofectamine 3000 combined with ultrasonic irradiation and SonoVue microbubbles could effectively knock down the STAT3 expression in psoriatic KCs, and the optimized transfection condition and the sequence of siRNA-3 could serve for further research on gene therapy of psoriasis.
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Affiliation(s)
- Li-Wei Ran
- Department of Dermatology and Venereology, Jingxi Campus, Beijing ChaoYang Hospital, Capital Medical University, Beijing, 100043, China.
| | - Hao Wang
- Department of Dermatology and Venereology, the Second Affiliated Hospital (Xibei Hospital), Xi'an Jiaotong University, Xi'an, 710004, China
| | - Dong Lan
- Department of Dermatology and Venereology, Jingxi Campus, Beijing ChaoYang Hospital, Capital Medical University, Beijing, 100043, China
| | - Hong-Xia Jia
- Department of Dermatology and Venereology, Jingxi Campus, Beijing ChaoYang Hospital, Capital Medical University, Beijing, 100043, China
| | - Si-Si Yu
- Department of Dermatology and Venereology, Jingxi Campus, Beijing ChaoYang Hospital, Capital Medical University, Beijing, 100043, China
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15
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Targeted disruption of TC-PTP in the proliferative compartment augments STAT3 and AKT signaling and skin tumor development. Sci Rep 2017; 7:45077. [PMID: 28322331 PMCID: PMC5359614 DOI: 10.1038/srep45077] [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: 10/25/2016] [Accepted: 02/17/2017] [Indexed: 12/30/2022] Open
Abstract
Tyrosine phosphorylation is a vital mechanism that contributes to skin carcinogenesis. It is regulated by the counter-activities of protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs). Here, we report the critical role of T-cell protein tyrosine phosphatase (TC-PTP), encoded by Ptpn2, in chemically-induced skin carcinogenesis via the negative regulation of STAT3 and AKT signaling. Using epidermal specific TC-PTP knockout (K14Cre.Ptpn2fl/fl) mice, we demonstrate loss of TC-PTP led to a desensitization to tumor initiator 7,12-dimethylbenz[a]anthracene (DMBA)-induced apoptosis both in vivo epidermis and in vitro keratinocytes. TC-PTP deficiency also resulted in a significant increase in epidermal thickness and hyperproliferation following exposure to the tumor promoter, 12-O-tetradecanoylphorbol-13-acetate (TPA). Western blot analysis showed that both phosphorylated STAT3 and phosphorylated AKT expressions were significantly increased in epidermis of TC-PTP-deficient mice compared to control mice following TPA treatment. Inhibition of STAT3 or AKT reversed the effects of TC-PTP deficiency on apoptosis and proliferation. Finally, TC-PTP knockout mice showed a shortened latency of tumorigenesis and significantly increased numbers of tumors during two-stage skin carcinogenesis. Our findings reveal that TC-PTP has potential as a novel target for the prevention of skin cancer through its role in the regulation of STAT3 and AKT signaling.
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16
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Liao Y, Feng J, Zhang Y, Tang L, Wu S. The mechanism of CIRP in inhibition of keratinocytes growth arrest and apoptosis following low dose UVB radiation. Mol Carcinog 2017; 56:1554-1569. [PMID: 27864909 DOI: 10.1002/mc.22597] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 10/31/2016] [Accepted: 11/17/2016] [Indexed: 01/08/2023]
Abstract
UV induces CIRP expression and subsequent Stat3 activation, but the biological function and mechanism of CIRP and Stat3 in mediating UVB-induced skin carcinogenesis have not been fully elucidated. In this study, we demonstrate that CIRP is elevated in all tested melanoma and non-melanoma skin cancer cell lines; and the expression of CIRP is upregulated in keratinocytes after being irradiated with relatively low dose (<5 mJ/cm2 ), but not high dose (50 mJ/cm2 ), UVB acutely and chronically. The increased expression of CIRP, either induced by UVB or through overexpression, leads to resistance of keratinocytes to UVB-induced growth arrest and death; and reduced expression of CIRP by RNA knockdown sensitizes keratinocyte cells to the low dose UVB radiation. We also demonstrated that CIRP expression is required for the low dose UVB-induced Tyr705-phosphorylation, but not total amount, of Stat3. The p-Stat3 level is correlated with the expression levels of cyclin D1 and VEGF, two known downstream cell growth regulators of Stat3, as well as Bag-1/S, an apoptosis regulator. Inhibition of Stat3 DNA-binding activity by S3I-201 leads to a reduction of the p-Stat3 and Bag-1/S along with growth and survival of keratinocytes post-UVB; and the effect of S3I-201 on the UVB-irradiated cells can be partially inhibited by overexpression of CIRP or Bag-1/S. Furthermore, the overexpression of Bag-1/S can totally inhibit UVB-induced PARP cleavage and caspase 3 activation. The results presented above led us to propose that CIRP-p(705)Stat3 cascade promotes cell proliferation and survival post-UVB via upregulating the expression of cyclin D1 and Bag-1/S, respectively. Published 2017. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Yi Liao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,Department of Chemistry and Biochemistry, 101 Konneker Laboratories, Edison Biotechnology Institute, Athens, Ohio.,Department of Cardiothoracic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jianguo Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.,Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
| | - Yi Zhang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Shiyong Wu
- Department of Chemistry and Biochemistry, 101 Konneker Laboratories, Edison Biotechnology Institute, Athens, Ohio
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17
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Ouédraogo ZG, Biau J, Kemeny JL, Morel L, Verrelle P, Chautard E. Role of STAT3 in Genesis and Progression of Human Malignant Gliomas. Mol Neurobiol 2016; 54:5780-5797. [PMID: 27660268 DOI: 10.1007/s12035-016-0103-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 09/06/2016] [Indexed: 12/23/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) is aberrantly activated in glioblastoma and has been identified as a relevant therapeutic target in this disease and many other human cancers. After two decades of intensive research, there is not yet any approved STAT3-based glioma therapy. In addition to the canonical activation by tyrosine 705 phosphorylation, concordant reports described a potential therapeutic relevance of other post-translational modifications including mainly serine 727 phosphorylation. Such reports reinforce the need to refine the strategy of targeting STAT3 in each concerned disease. This review focuses on the role of serine 727 and tyrosine 705 phosphorylation of STAT3 in glioma. It explores their contribution to glial cell transformation and to the mechanisms that make glioma escape to both immune control and standard treatment.
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Affiliation(s)
- Zangbéwendé Guy Ouédraogo
- Clermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, F-63000, Clermont-Ferrand, France.,Département de Radiothérapie, Laboratoire de Radio-Oncologie Expérimentale, Centre Jean Perrin, EA7283 CREaT - Université d'Auvergne, 58 rue Montalembert, F-63000-63011, Clermont Ferrand, France.,Laboratoire de Pharmacologie, de Toxicologie et de Chimie Thérapeutique, Université de Ouagadougou, 03, Ouagadougou, BP 7021, Burkina Faso
| | - Julian Biau
- Clermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, F-63000, Clermont-Ferrand, France.,Département de Radiothérapie, Laboratoire de Radio-Oncologie Expérimentale, Centre Jean Perrin, EA7283 CREaT - Université d'Auvergne, 58 rue Montalembert, F-63000-63011, Clermont Ferrand, France.,Département de Radiothérapie, Institut Curie, 91405, Orsay, France
| | - Jean-Louis Kemeny
- Clermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, F-63000, Clermont-Ferrand, France.,CHU Clermont-Ferrand, Service d'Anatomopathologie, F-63003, Clermont-Ferrand, France
| | - Laurent Morel
- Clermont Université, Université Blaise-Pascal, GReD, UMR CNRS 6293, INSERM U1103, 24 Avenue des Landais BP80026, 63171, Aubière, France
| | - Pierre Verrelle
- Clermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, F-63000, Clermont-Ferrand, France.,Département de Radiothérapie, Laboratoire de Radio-Oncologie Expérimentale, Centre Jean Perrin, EA7283 CREaT - Université d'Auvergne, 58 rue Montalembert, F-63000-63011, Clermont Ferrand, France.,Département de Radiothérapie, Institut Curie, 91405, Orsay, France
| | - Emmanuel Chautard
- Clermont Université, Université d'Auvergne, EA 7283, CREaT, BP 10448, F-63000, Clermont-Ferrand, France. .,Département de Radiothérapie, Laboratoire de Radio-Oncologie Expérimentale, Centre Jean Perrin, EA7283 CREaT - Université d'Auvergne, 58 rue Montalembert, F-63000-63011, Clermont Ferrand, France.
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