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Pesini C, Artal L, Paúl Bernal J, Sánchez Martinez D, Pardo J, Ramírez-Labrada A. In-depth analysis of the interplay between oncogenic mutations and NK cell-mediated cancer surveillance in solid tumors. Oncoimmunology 2024; 13:2379062. [PMID: 39036370 PMCID: PMC11259085 DOI: 10.1080/2162402x.2024.2379062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/08/2024] [Indexed: 07/23/2024] Open
Abstract
Natural killer (NK) cells play a crucial role in antitumoral and antiviral responses. Yet, cancer cells can alter themselves or the microenvironment through the secretion of cytokines or other factors, hindering NK cell activation and promoting a less cytotoxic phenotype. These resistance mechanisms, often referred to as the "hallmarks of cancer" are significantly influenced by the activation of oncogenes, impacting most, if not all, of the described hallmarks. Along with oncogenes, other types of genes, the tumor suppressor genes are frequently mutated or modified during cancer. Traditionally, these genes have been associated with uncontrollable tumor growth and apoptosis resistance. Recent evidence suggests oncogenic mutations extend beyond modulating cell death/proliferation programs, influencing cancer immunosurveillance. While T cells have been more studied, the results obtained highlight NK cells as emerging key protagonists for enhancing tumor cell elimination by modulating oncogenic activity. A few recent studies highlight the crucial role of oncogenic mutations in NK cell-mediated cancer recognition, impacting angiogenesis, stress ligands, and signaling balance within the tumor microenvironment. This review will critically examine recent discoveries correlating oncogenic mutations to NK cell-mediated cancer immunosurveillance, a relatively underexplored area, particularly in the era dominated by immune checkpoint inhibitors and CAR-T cells. Building on these insights, we will explore opportunities to improve NK cell-based immunotherapies, which are increasingly recognized as promising alternatives for treating low-antigenic tumors, offering significant advantages in terms of safety and manufacturing suitability.
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Affiliation(s)
- Cecilia Pesini
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
- Center for Biomedical Research in the Network of Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Zaragoza, Spain
- Department of Microbiology, Radiology, Pediatry and Public Health, University of Zaragoza, Zaragoza, Spain
| | - Laura Artal
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
- Institute of Carbochemistry (ICB-CSIC), Zaragoza, Spain
| | - Jorge Paúl Bernal
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
| | - Diego Sánchez Martinez
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
- Aragón I + D Foundation (ARAID), Government of Aragon, Zaragoza, Spain
| | - Julián Pardo
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
- Center for Biomedical Research in the Network of Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Zaragoza, Spain
- Department of Microbiology, Radiology, Pediatry and Public Health, University of Zaragoza, Zaragoza, Spain
| | - Ariel Ramírez-Labrada
- Aragón Health Research Institute (IIS Aragón), Biomedical Research Centre of Aragón (CIBA), Zaragoza, Spain
- Center for Biomedical Research in the Network of Infectious Diseases (CIBERINFEC), Carlos III Health Institute, Zaragoza, Spain
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Lang B, Wang M, Zhang Z, Fu Y, Han X, Hu Q, Ding H, Shang H, Jiang Y. Inhibitory receptor CD47 binding to plasma TSP1 suppresses NK-cell IFN-γ production via activating the JAK/STAT3 pathway during HIV infection. J Transl Med 2023; 21:869. [PMID: 38037074 PMCID: PMC10688093 DOI: 10.1186/s12967-023-04667-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/27/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Natural killer (NK) cells play an important first-line role against tumour and viral infections and are regulated by inhibitory receptor expression. Among these inhibitory receptors, the expression, function, and mechanism of cluster of differentiation 47 (CD47) on NK cells during human immunodeficiency virus (HIV) infection remain unclear. METHODS Fresh peripheral blood mononuclear cells (PBMCs) were collected from people living with HIV (PLWH) and HIV negative controls (NC) subjects. Soluble ligand expression levels of CD47 were measured using ELISA. HIV viral proteins or Toll-like receptor 7/8 (TLR7/8) agonist was used to investigate the mechanisms underlying the upregulation of CD47 expression. The effect of CD47 on NK cell activation, proliferation, and function were evaluated by flow cytometry. RNA-seq was used to identify downstream pathways for CD47 and its ligand interactions. A small molecule inhibitor was used to restore the inhibition of NK cell function by CD47 signalling. RESULTS CD47 expression was highly upregulated on the NK cells from PLWH, which could be due to activation of the Toll-like receptor 7/8 (TLR7/8) pathway. Compared with NC subjects, PLWH subjects exhibited elevated levels of CD47 ligands, thrombospondin-1 (TSP1), and counter ligand signal regulatory protein-α (SIRPα). The TSP1-CD47 axis drives the suppression of interferon gamma (IFN-γ) production and the activation of the Janus kinase signal transducer and activator of transcription (JAK-STAT) pathway in NK cells. After treatment with a STAT3 inhibitor, the NK cells from PLWH showed significantly improved IFN-γ production. CONCLUSIONS The current data indicate that the binding of the inhibitory receptor CD47 to plasma TSP1 suppresses NK cell IFN-γ production by activating the JAK/STAT3 pathway during HIV infection. Our results suggest that CD47 and its related signalling pathways could be targets for improving NK cell function in people living with HIV.
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Affiliation(s)
- Bin Lang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Meiting Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Zining Zhang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Yajing Fu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Xiaoxu Han
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Qinghai Hu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Haibo Ding
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China
| | - Hong Shang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China.
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China.
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China.
| | - Yongjun Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, NHC Key Laboratory of AIDS Immunology, National Clinical Research Center for Laboratory Medicine, The First Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China.
- Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.
- Key Laboratory of AIDS Immunology of Liaoning Province, Shenyang, 110001, China.
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Dong Y, Chen J, Chen Y, Liu S. Targeting the STAT3 oncogenic pathway: Cancer immunotherapy and drug repurposing. Biomed Pharmacother 2023; 167:115513. [PMID: 37741251 DOI: 10.1016/j.biopha.2023.115513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 09/25/2023] Open
Abstract
Immune effector cells in the microenvironment tend to be depleted or remodeled, unable to perform normal functions, and even promote the malignant characterization of tumors, resulting in the formation of immunosuppressive microenvironments. The strategy of reversing immunosuppressive microenvironment has been widely used to enhance the tumor immunotherapy effect. Signal transducer and activator of transcription 3 (STAT3) was found to be a crucial regulator of immunosuppressive microenvironment formation and activation as well as a factor, stimulating tumor cell proliferation, survival, invasiveness and metastasis. Therefore, regulating the immune microenvironment by targeting the STAT3 oncogenic pathway might be a new cancer therapy strategy. This review discusses the pleiotropic effects of STAT3 on immune cell populations that are critical for tumorigenesis, and introduces the novel strategies targeting STAT3 oncogenic pathway for cancer immunotherapy. Lastly, we summarize the conventional drugs used in new STAT3-targeting anti-tumor applications.
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Affiliation(s)
- Yushan Dong
- Graduate School of Heilongjiang University of Chinese Medicine, No. 24, Heping Road, Xiangfang District, Harbin, Heilongjiang, China
| | - Jingyu Chen
- Department of Chinese Medicine Internal Medicine, Xiyuan Hospital, China Academy of Chinese Medical Sciences, No. 1 Xiyuan Playground, Haidian District, Beijing, China
| | - Yuhan Chen
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Songjiang Liu
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, No.26, Heping Road, Xiangfang District, Harbin, Heilongjiang Province, China.
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Xu J, Zhang X, Zhou M, Lu P, Xu Y, Wu L, Zhang Q, Wu Z, Xu X, Shi P, Wei Q, Li X, Song Q. Bioactive compound C498-0670 alleviates LPS-induced sepsis via JAK/STAT and NFκB signaling pathways. Front Immunol 2023; 14:1132265. [PMID: 37122731 PMCID: PMC10140310 DOI: 10.3389/fimmu.2023.1132265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/27/2023] [Indexed: 05/02/2023] Open
Abstract
The JAK/STAT and NFκB signaling pathways are two major inflammatory signaling pathways that are usually activated simultaneously in the body's inflammatory response to bacterial or viral infections. Hyperactivation of these two prominent signaling pathways is associated with various immune-related diseases and mortality, pointing to an urgent need for drug development targeting JAK/STAT and/or NFκB signaling. In this study, we screened 18,840 compounds using our well-established dual STAT-NFκB driven luciferase reporter based high-throughput screening system and identified a bioactive compound C498-0670, which inhibits both JAK/STAT and NFκB signaling. C498-0670 inhibits the activation of STATs and p-IKKα/β in both the immortalized cell lines and primary peritoneal macrophages, while suppressing the expression of LPS-induced inflammatory mediators in vitro. In addition, the overall anti-inflammatory effects of C498-0670 were investigated using transcriptome sequencing and bioinformatics approaches. C498-0670 was predicted to alleviate sepsis/septic shock by disease/function analysis using IPA software, which was further verified in the LPS-induced mouse sepsis model in vivo. C498 reduced LPS-induced liver and kidney damage, myeloid cell infiltration, and pro-inflammatory cytokine and chemokine production in vivo. Furthermore, the SPR-HPLC-MS-based target fishing approach was used to identify the putative drug targets, and the high affinities of JAK2 (JAK/STAT signaling), NFKBIA (NFκB signaling), and IL-1β, NLRP1b (inflammasome signaling) for C498-0670 were verified by molecular docking approach. These results suggest that C498-0670 can be used as a dual-target inhibitor of JAK/STAT and NFκB signaling pathways for the treatment of various inflammatory diseases, especially septic shock.
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Affiliation(s)
- Jing Xu
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Xinxin Zhang
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Mingming Zhou
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Peizhe Lu
- Department of Neuroscience, University of Michigan, Ann Arbor, MI, United States
| | - Yuting Xu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Lihong Wu
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Qianyue Zhang
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Zhihua Wu
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Xiaoyu Xu
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Pengfei Shi
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Qingda Wei
- School of Medicine, Zhengzhou University, Zhengzhou, China
| | - Xiaoyu Li
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Xiaoyu Li, ; Qiaoling Song,
| | - Qiaoling Song
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
- *Correspondence: Xiaoyu Li, ; Qiaoling Song,
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5
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Bickett TE, Knitz MW, Piper M, Oweida AJ, Gadwa J, Darragh LB, Nguyen D, Bhatia S, Bhuvane S, Phan AV, Van Court B, Corbo S, Pham T, Dent AL, Lenz L, Karam SD. Dichotomous effects of cellular expression of STAT3 on tumor growth of HNSCC. Mol Ther 2022; 30:1149-1162. [PMID: 34793974 PMCID: PMC8899526 DOI: 10.1016/j.ymthe.2021.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/17/2021] [Accepted: 11/11/2021] [Indexed: 01/12/2023] Open
Abstract
STAT3 signaling has been shown to regulate cellular function and cytokine production in the tumor microenvironment (TME). Within the head and neck squamous cell carcinoma (HNSCC) TME, we previously showed that therapeutic targeting of STAT3 in combination with radiation resulted in improved tumor growth delay. However, given the independent regulatory effects STAT3 has on anti-tumor immunity, we aimed to decipher the effects of individually targeting STAT3 in the cancer cell, regulatory T cells (Tregs), and natural killer (NK) cell compartments in driving tumor growth and resistance to therapy in HNSCCs. We utilized a CRISPR knockout system for genetic deletion of STAT3 within the cancer cell as well as two genetic knockout mouse models, FoxP3-Cre/STAT3 fl and NKp46-Cre/STAT3 fl, for Tregs and NK cell targeting, respectively. Our data revealed differences in development of resistance to treatment with STAT3 CRISPR knockout in the cancer cell, driven by differential recruitment of immune cells. Knockout of STAT3 in Tregs overcomes this resistance and results in Treg reprogramming and recruitment and activation of antigen-presenting cells. In contrast, knockout of STAT3 in the NK cell compartment results in NK cell inactivation and acceleration of tumor growth. These data underscore the complex interplay between the cancer cell and the immune TME and carry significant implications for drug targeting and design of combination approaches in HNSCCs.
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Affiliation(s)
- Thomas E Bickett
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Michael W Knitz
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Miles Piper
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ayman J Oweida
- Département de Médecine Nucléaire et Radiobiologie, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
| | - Jacob Gadwa
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Laurel B Darragh
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Immunology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Diemmy Nguyen
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Shilpa Bhatia
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Shiv Bhuvane
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Andy V Phan
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Benjamin Van Court
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sophia Corbo
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Tiffany Pham
- Department of Otolaryngology, Head and Neck Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Alexander L Dent
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Laurel Lenz
- Department of Immunology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sana D Karam
- Department of Radiation Oncology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Immunology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
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CXCL13 in Cancer and Other Diseases: Biological Functions, Clinical Significance, and Therapeutic Opportunities. Life (Basel) 2021; 11:life11121282. [PMID: 34947813 PMCID: PMC8708574 DOI: 10.3390/life11121282] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/31/2021] [Accepted: 11/12/2021] [Indexed: 12/11/2022] Open
Abstract
The development of cancer is a multistep and complex process involving interactions between tumor cells and the tumor microenvironment (TME). C-X-C chemokine ligand 13 (CXCL13) and its receptor, CXCR5, make crucial contributions to this process by triggering intracellular signaling cascades in malignant cells and modulating the sophisticated TME in an autocrine or paracrine fashion. The CXCL13/CXCR5 axis has a dominant role in B cell recruitment and tertiary lymphoid structure formation, which activate immune responses against some tumors. In most cancer types, the CXCL13/CXCR5 axis mediates pro-neoplastic immune reactions by recruiting suppressive immune cells into tumor tissues. Tobacco smoke and haze (smohaze) and the carcinogen benzo(a)pyrene induce the secretion of CXCL13 by lung epithelial cells, which contributes to environmental lung carcinogenesis. Interestingly, the knockout of CXCL13 inhibits benzo(a)pyrene-induced lung cancer and azoxymethane/dextran sodium sulfate-induced colorectal cancer in mice. Thus, a better understanding of the context-dependent functions of the CXCL13/CXCR5 axis in tumor tissue and the TME is required to design an efficient immune-based therapy. In this review, we summarize the molecular events and TME alterations caused by CXCL13/CXCR5 and briefly discuss the potentials of agents targeting this axis in different malignant tumors.
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Kim SJ, Cho NC, Hahn YI, Kim SH, Fang X, Surh YJ. STAT3 as a Potential Target for Tumor Suppressive Effects of 15-Deoxy-Δ 12,14-prostaglandin J 2 in Triple Negative Breast Cancer. J Cancer Prev 2021; 26:207-217. [PMID: 34703823 PMCID: PMC8511581 DOI: 10.15430/jcp.2021.26.3.207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/17/2021] [Accepted: 09/17/2021] [Indexed: 12/24/2022] Open
Abstract
STAT3 plays a prominent role in proliferation and survival of tumor cells. Thus, STAT3 has been considered to be a prime target for development of anti-cancer therapeutics. The electrophilic cyclopentenone prostaglandin,15-deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has been well recognized for its capability to modulate intracellular signaling pathways involved in cancer cell growth and progression. We previously reported that 15d-PGJ2 had potent cytotoxicity against harvey-ras transformed human mammary epithelial cells through direct interaction with STAT3. In this study, we have attempted to verify the inhibitory effects of 15d-PGJ2 on STAT3 signaling in human breast tumor cells. The triple negative breast cancer cell lines, MDA-MB-231 and MDA-MB-468 displaying constitutive phosphorylation of STAT3 on the tyrosine 705 (Tyr705) residue, underwent apoptosis upon inhibition of STAT3 by 15d-PGJ2. In contrast, estrogen receptor positive MCF-7 breast cancer cells that do not exhibit elevated STAT3 phosphorylation were much less susceptible to 15d-PGJ2-induced apoptosis as assessed by PARP cleavage. Furthermore, 15d-PGJ2 inhibited interleukin-6-induced tyrosine phosphorylation of STAT3 in LNCaP cells. According to molecular docking studies, 15d-PGJ2 may preferentially bind to the cysteine 259 residue (Cys259) present in the coiled-coil domain of STAT3. Site-directed mutagenesis of STAT3 identified Cys259 to be the critical amino acid for the 15d-PGJ2-induced apoptosis as well as epithelial-to-mesenchymal transition. Taken together, these findings suggest STAT3 inactivation through direct chemical modification of its Cys259 as a potential therapeutic approach for treatment of triple negative breast cancer treatment.
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Affiliation(s)
- Su-Jung Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Nam-Chul Cho
- Korea Chemical Bank, Korea Research Institute of Chemical Technology, Daejeon, Korea
| | - Young-Il Hahn
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science, Seoul National University, Seoul, Korea
| | - Seong Hoon Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Xizhu Fang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Young-Joon Surh
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science, Seoul National University, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
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Zhang L, Kuca K, You L, Zhao Y, Musilek K, Nepovimova E, Wu Q, Wu W, Adam V. Signal transducer and activator of transcription 3 signaling in tumor immune evasion. Pharmacol Ther 2021; 230:107969. [PMID: 34450232 DOI: 10.1016/j.pharmthera.2021.107969] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023]
Abstract
The underlying mechanism of tumor immune evasion is a highly concerning subject for researchers. Increasing evidences reveal that the over-activated signal transducer and activator of transcription 3 (STAT3) is a crucial molecular hub in malignant tumors. STAT3 controls autophagy molecules that impair CTL-mediated tumor cell lysis, inhibiting natural killer cells and inducing apoptosis in T lymphocytes to create an immunosuppressive environment. STAT3 signaling regulates the expression of immune factors and recruits immunosuppressive cells to establish a tolerant tumor microenvironment (TME). STAT3 signaling regulates the expression of immune factors and recruits immunosuppressive cells to create an immunosuppressive environment. All this aid tumor cells in escaping from immune surveillance. In this review, we outlined the STAT3-mediated mechanisms involved in tumor immune evasion and their potential regulatory functions in the TME. We discussed the impact of STAT3 signaling on PD-L1, HIF-1α, exosome, lncRNA, and autophagy in the promotion of tumor immune evasion and highlighted the recent research on STAT3 signaling and tumor immune evasion that may assist in developing effective STAT3-targeted drugs for advancing immunotherapy.
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Affiliation(s)
- Luying Zhang
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Králové 500 03, Czech Republic
| | - Li You
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Yingying Zhao
- College of Life Science, Yangtze University, Jingzhou 434025, China
| | - Kamil Musilek
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Králové 500 03, Czech Republic
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Králové 500 03, Czech Republic
| | - Qinghua Wu
- College of Life Science, Yangtze University, Jingzhou 434025, China; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Králové 500 03, Czech Republic.
| | - Wenda Wu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Králové 500 03, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno 613 00, Czech Republic; Central European Institute of Technology, Brno University of Technology, Brno 602 00, Czech Republic.
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Radaeva M, Ton AT, Hsing M, Ban F, Cherkasov A. Drugging the 'undruggable'. Therapeutic targeting of protein-DNA interactions with the use of computer-aided drug discovery methods. Drug Discov Today 2021; 26:2660-2679. [PMID: 34332092 DOI: 10.1016/j.drudis.2021.07.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/22/2021] [Accepted: 07/17/2021] [Indexed: 02/09/2023]
Abstract
Transcription factors (TFs) act as major oncodrivers in many cancers and are frequently regarded as high-value therapeutic targets. The functionality of TFs relies on direct protein-DNA interactions, which are notoriously difficult to target with small molecules. However, this prior view of the 'undruggability' of protein-DNA interfaces has shifted substantially in recent years, in part because of significant advances in computer-aided drug discovery (CADD). In this review, we highlight recent examples of successful CADD campaigns resulting in drug candidates that directly interfere with protein-DNA interactions of several key cancer TFs, including androgen receptor (AR), ETS-related gene (ERG), MYC, thymocyte selection-associated high mobility group box protein (TOX), topoisomerase II (TOP2), and signal transducer and activator of transcription 3 (STAT3). Importantly, these findings open novel and compelling avenues for therapeutic targeting of over 1600 human TFs implicated in many conditions including and beyond cancer.
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Affiliation(s)
- Mariia Radaeva
- Vancouver Prostate Centre and the Department of Urologic Sciences, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada
| | - Anh-Tien Ton
- Vancouver Prostate Centre and the Department of Urologic Sciences, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada
| | - Michael Hsing
- Vancouver Prostate Centre and the Department of Urologic Sciences, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada
| | - Fuqiang Ban
- Vancouver Prostate Centre and the Department of Urologic Sciences, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada
| | - Artem Cherkasov
- Vancouver Prostate Centre and the Department of Urologic Sciences, University of British Columbia, 2660 Oak Street, Vancouver, BC V6H 3Z6, Canada.
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10
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Wei J, Chen P, Gupta P, Ott M, Zamler D, Kassab C, Bhat KP, Curran MA, de Groot JF, Heimberger AB. Immune biology of glioma-associated macrophages and microglia: functional and therapeutic implications. Neuro Oncol 2021; 22:180-194. [PMID: 31679017 DOI: 10.1093/neuonc/noz212] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
CNS immune defenses are marshaled and dominated by brain resident macrophages and microglia, which are the innate immune sentinels and frontline host immune barriers against various pathogenic insults. These myeloid lineage cells are the predominant immune population in gliomas and can constitute up to 30-50% of the total cellular composition. Parenchymal microglial cells and recruited monocyte-derived macrophages from the periphery exhibit disease-specific phenotypic characteristics with spatial and temporal distinctions and are heterogeneous subpopulations based on their molecular signatures. A preponderance of myeloid over lymphoid lineage cells during CNS inflammation, including gliomas, is a contrasting feature of brain immunity relative to peripheral immunity. Herein we discuss glioma-associated macrophage and microglia immune biology in the context of their identity, molecular drivers of recruitment, nomenclature and functional paradoxes, therapeutic reprogramming and polarization strategies, relevant challenges, and our perspectives on therapeutic modulation.
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Affiliation(s)
- Jun Wei
- Departments of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Peiwen Chen
- Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Pravesh Gupta
- Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Martina Ott
- Departments of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Daniel Zamler
- Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Cynthia Kassab
- Departments of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Krishna P Bhat
- Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael A Curran
- Immunology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - John F de Groot
- Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Amy B Heimberger
- Departments of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, Texas
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11
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Aftabizadeh M, Li YJ, Zhao Q, Zhang C, Ambaye N, Song J, Nagao T, Lahtz C, Fakih M, Ann DK, Yu H, Herrmann A. Potent antitumor effects of cell-penetrating peptides targeting STAT3 axis. JCI Insight 2021; 6:136176. [PMID: 33491667 PMCID: PMC7934871 DOI: 10.1172/jci.insight.136176] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 12/09/2020] [Indexed: 01/05/2023] Open
Abstract
To date, there are no inhibitors that directly and specifically target activated STAT3 and c-Myc in the clinic. Although peptide-based inhibitors can selectively block activated targets, their clinical usage is limited because of low cell penetration and/or serum stability. Here, we generated cell-penetrating acetylated (acet.) STAT3, c-Myc, and Gp130 targeting peptides by attaching phosphorothioated (PS) polymer backbone to peptides. The cell-penetrating peptides efficiently penetrated cells and inhibited activation of the intended targets and their downstream genes. Locally or systemically treating tumor-bearing mice with PS-acet.-STAT3 peptide at low concentrations effectively blocked STAT3 in vivo, resulting in significant antitumor effects in 2 human xenograft models. Moreover, PS-acet.-STAT3 peptide penetrated and activated splenic CD8+ T cells in vitro. Treating immune-competent mice bearing mouse melanoma with PS-acet.-STAT3 peptide inhibited STAT3 in tumor-infiltrating T cells, downregulating tumor-infiltrating CD4+ T regulatory cells while activating CD8+ T effector cells. Similarly, systemic injections of the cell-penetrating c-Myc and Gp130 peptides prevented pancreatic tumor growth and induced antitumor immune responses. Taken together, we have developed therapeutic peptides that effectively and specifically block challenging cancer targets, resulting in antitumor effects through both direct tumor cell killing and indirectly through antitumor immune responses.
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Affiliation(s)
| | | | - Qianqian Zhao
- Department of Immuno-Oncology and
- Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | | | | | | | | | - Christoph Lahtz
- Department of Immuno-Oncology and
- Sorrento Therapeutics, San Diego, California, USA
| | - Marwan Fakih
- Department of Medical Oncology and Therapeutics and
| | - David K. Ann
- Diabetes & Metabolism Research Institute, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Hua Yu
- Department of Immuno-Oncology and
| | - Andreas Herrmann
- Department of Immuno-Oncology and
- Sorrento Therapeutics, San Diego, California, USA
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12
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Targeting Glioblastoma: Advances in Drug Delivery and Novel Therapeutic Approaches. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.202000124] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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13
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Siddiqui SS, Rahman S, Rupasinghe HV, Vazhappilly CG. Dietary Flavonoids in p53-Mediated Immune Dysfunctions Linking to Cancer Prevention. Biomedicines 2020; 8:biomedicines8080286. [PMID: 32823757 PMCID: PMC7460013 DOI: 10.3390/biomedicines8080286] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/03/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022] Open
Abstract
The p53 protein plays a central role in mediating immune functioning and determines the fate of the cells. Its role as a tumor suppressor, and in transcriptional regulation and cytokine activity under stress conditions, is well defined. The wild type (WT) p53 functions as a guardian for the genome, while the mutant p53 has oncogenic roles. One of the ways that p53 combats carcinogenesis is by reducing inflammation. WT p53 functions as an anti-inflammatory molecule via cross-talk activity with multiple immunological pathways, such as the major histocompatibility complex I (MHCI) associated pathway, toll-like receptors (TLRs), and immune checkpoints. Due to the multifarious roles of p53 in cancer, it is a potent target for cancer immunotherapy. Plant flavonoids have been gaining recognition over the last two decades to use as a potential therapeutic regimen in ameliorating diseases. Recent studies have shown the ability of flavonoids to suppress chronic inflammation, specifically by modulating p53 responses. Further, the anti-oxidant Keap1/Nrf2/ARE pathway could play a crucial role in mitigating oxidative stress, leading to a reduction of chronic inflammation linked to the prevention of cancer. This review aims to discuss the pharmacological properties of plant flavonoids in response to various oxidative stresses and immune dysfunctions and analyzes the cross-talk between flavonoid-rich dietary intake for potential disease prevention.
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Affiliation(s)
- Shoib Sarwar Siddiqui
- Department of Biotechnology, American University of Ras Al Khaimah, Ras Al Khaimah PO Box 10021, UAE;
| | - Sofia Rahman
- School of Natural Sciences and Mathematics, The University of Texas at Dallas, Richardson, TX 75080, USA;
| | - H.P. Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada;
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - Cijo George Vazhappilly
- Department of Biotechnology, American University of Ras Al Khaimah, Ras Al Khaimah PO Box 10021, UAE;
- Correspondence:
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14
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Ambaye ND, Yu HE. Novel anti-cancer candidates from a combinatorial peptide library. Chem Biol Drug Des 2020; 97:87-96. [PMID: 32659860 DOI: 10.1111/cbdd.13763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/21/2020] [Accepted: 07/05/2020] [Indexed: 12/26/2022]
Abstract
STAT3 is attractive target for development of anti-cancer therapeutics as it is implicated in nearly all forms of human tumors. To identify novel leads, we screened a combinatorial peptide library displayed on the surface of M13 bacteriophage. After three rounds of biopanning, a dodecapeptide with the YYVSWPPDMMHY sequence was found to be enriched by 36% while another with a short consensus motif was displayed in 20% of the phages. Binding analysis by isothermal titration calorimetry shows the most displayed peptide interacted with a Kd of 1.79 μM, which on modification of its structure to mimic the natural binding partners of STAT3 brought the affinity to high nanomolar range (Kd = 500 nM). Using a panel of tumor cell lines, we show that the peptides prevented the proliferation of triple-negative breast cancer cells with a moderate activity (GI50 = 50 μM). Furthermore, gene expression analysis shows the peptide reduced the expression of oncoproteins critical for tumor cell proliferation, angiogenesis, and metastasis. To find novel STAT3-interacting proteins, we searched the non-redundant sequences of the National Center for Biotechnology Information database which allowed us to identify potential binding partners of the protein. In sum, our data show the identified agents could serve as useful therapeutics candidates for further development.
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Affiliation(s)
- Nigus D Ambaye
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Hua E Yu
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
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15
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Xiao G, Yang Q, Bao Z, Mao H, Zhang Y, Lin S. Expression of tripartite motif-containing 44 and its prognostic and clinicopathological value in human malignancies:a meta-analysis. BMC Cancer 2020; 20:525. [PMID: 32503466 PMCID: PMC7275359 DOI: 10.1186/s12885-020-07014-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/28/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Previous researches have reported that tripartite motif-containing 44 (TRIM44) is related to the prognosis of multiple human tumors. This study was designed to systematically assess the prognostic value of TRIM44 in human malignancies and summarize its possible tumor-related mechanisms. METHODS The available databases were searched for eligible studies that evaluated the clinicopathological and prognostic roles of TRIM44 in patients with malignancies. The hazard ratios (HR) and odds ratios (OR) were combined to assess the predictive role of TRIM44 using Stata/SE 14.1 software. RESULTS A total of 1740 patients from thirteen original studies were finally included in this study. The results of the combined analysis showed that over-expression of TRIM44 protein was significantly correlated with shorter overall survival (OS) (HR = 1.94, 95% CI: 1.60-2.35) and worse disease-free survival (DFS) (HR = 2.13, 95% CI: 1.24-3.65) in cancer patients. Additionally, the combined ORs indicated that elevated expression level of TRIM44 protein was significantly associated with lymph node metastasis (OR = 2.69, 95% CI: 1.71-4.24), distant metastasis (OR = 10.35, 95% CI: 1.01-106.24), poor tumor differentiation (OR = 1.78, 95% CI: 1.03-3.09), increased depth of tumor invasion (OR = 2.72, 95% CI: 1.73-4.30), advanced clinical stage (OR = 2.75, 95% CI: 2.04-3.71), and recurrence (OR = 2.30, 95% CI: 1.34-3.95). Furthermore, analysis results using Gene Expression Profiling Interactive Analysis (GEPIA) showed that the expression level of TRIM44 mRNA was higher in most tumor tissues than in the corresponding normal tissues, and the relationship between TRIM44 mRNA level and prognosis in various malignant tumors also explored in GEPIA and OS analysis webservers. CONCLUSIONS TRIM44 may serve as a valuable prognostic biomarker and a potential therapeutic target for patients with malignancies.
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Affiliation(s)
- Guoliang Xiao
- Department of General Surgery, the First People's Hospital of Neijiang, Neijiang, 641000, Sichuan Province, PR China
| | - Qiuxi Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, Hainan Province, PR China
| | - Ziwei Bao
- Department of medicine, Southwest Medical University, Luzhou, 646000, Sichuan Province, PR China
| | - Haixia Mao
- Department of medicine, Southwest Medical University, Luzhou, 646000, Sichuan Province, PR China
| | - Yi Zhang
- Department of General Surgery, the First People's Hospital of Neijiang, Neijiang, 641000, Sichuan Province, PR China.
| | - Shibu Lin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, 570100, Hainan Province, PR China
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16
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Qi X, Li M, Zhang XM, Dai XF, Cui J, Li DH, Gu QQ, Lv ZH, Li J. Trichothecin Inhibits Cancer-Related Features in Colorectal Cancer Development by Targeting STAT3. Molecules 2020; 25:molecules25102306. [PMID: 32422984 PMCID: PMC7287781 DOI: 10.3390/molecules25102306] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/22/2022] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a transcription factor that contributes to cancer progression through multiple processes of cancer development, which makes it an attractive target for cancer therapy. The IL-6/STAT3 pathway is associated with an advanced stage in colorectal cancer patients. In this study, we identified trichothecin (TCN) as a novel STAT3 inhibitor. TCN was found to bind to the SH2 domain of STAT3 and inhibit STAT3 activation and dimerization, thereby blocking STAT3 nuclear translocation and transcriptional activity. TCN did not affect phosphorylation levels of STAT1. TCN significantly inhibited cell growth, arrested cell cycle at the G0/G1 phase, and induced apoptosis in HCT 116 cells. In addition, the capacities of colony formation, migration, and invasion of HCT 116 cells were impaired upon exposure to TCN with or without IL-6 stimulation. In addition, TCN treatment abolished the tube formation of HUVEC cells in vitro. Taken together, these results highlight that TCN inhibits various cancer-related features in colorectal cancer development in vitro by targeting STAT3, indicating that TCN is a promising STAT3 inhibitor that deserves further exploration in the future.
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Affiliation(s)
- Xin Qi
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
| | - Meng Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
| | - Xiao-min Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
| | - Xiu-fen Dai
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
| | - Jian Cui
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
| | - De-hai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Qian-qun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Zhi-hua Lv
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Correspondence: (Z.-h.L.); (J.L.); Tel.: +86-532-82032096 (Z.-h.L.); +86-532-82032066 (J.L.)
| | - Jing Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; (X.Q.); (M.L.); (X.-m.Z.); (X.-f.D.); (J.C.); (D.-h.L.); (Q.-q.G.)
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Correspondence: (Z.-h.L.); (J.L.); Tel.: +86-532-82032096 (Z.-h.L.); +86-532-82032066 (J.L.)
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LLY17, a novel small molecule STAT3 inhibitor induces apoptosis and suppresses cell migration and tumor growth in triple-negative breast cancer. Breast Cancer Res Treat 2020; 181:31-41. [PMID: 32240456 DOI: 10.1007/s10549-020-05613-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 03/23/2020] [Indexed: 01/29/2023]
Abstract
PURPOSE Persistent STAT3 signaling is frequently detected in many cancer types including triple-negative breast cancer, and thus could potentially serve as a viable therapeutic target. We have designed a novel non-peptide compound LLY17 targeting STAT3 using Advanced Multiple Ligand Simultaneous Docking (AMLSD) methods. However, the efficacy of LLY17 has not been evaluated extensively in human and murine triple-negative breast cancer cells. In this study, we tested LLY17 in multiple human and murine triple-negative breast cancer cell lines. METHODS Human triple-negative breast cancer MDA-MB-468, MDA-MB-231, SUM159, and BT-549 cells, and murine triple-negative breast cancer 4T1 cells were used to study the inhibition effects of LLY17. The inhibition of STAT3 activation of LLY17 was investigated using western blot analysis. Cell viability, apoptosis and migration assays were carried out by MTT assay, Caspase-3/7 assay and wound healing assay, respectively. A mammary fat pad syngeneic mouse model was used to evaluate the antitumor effect of LLY17 in vivo. RESULTS LLY17 inhibited IL-6-mediated induction of STAT3 phosphorylation but had no effect on IFN-γ-induced STAT1 phosphorylation or EGF-induced ERK phosphorylation. LLY17 inhibited STAT3 phosphorylation and induced apoptosis in human and murine triple-negative breast cancer cells but exhibited minimal toxicity toward Luminal A subtype breast cancer MCF-7 cells. RNAi attenuation experiments supported the requirement of STAT3 for LLY17-mediated inhibition of cell viability in triple-negative breast cancer cells. In addition, LLY17 inhibited cell migration of human and murine triple-negative breast cancer cells. Furthermore, LLY17 suppressed tumor growth and STAT3 phosphorylation of triple-negative breast cancer cells in a mammary fat pad syngeneic mouse model in vivo. CONCLUSIONS Together, our findings suggest that targeting persistent STAT3 signaling by novel small molecule LLY17 may be a potential approach for the therapy of triple-negative breast cancer.
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Liu Z, Ge X, Gu Y, Huang Y, Liu H, Yu M, Liu Y. Small molecule STAT3 inhibitor, 6Br-6a suppresses breast cancer growth in vitro and in vivo. Biomed Pharmacother 2020; 121:109502. [DOI: 10.1016/j.biopha.2019.109502] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/12/2019] [Accepted: 09/26/2019] [Indexed: 01/16/2023] Open
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Hu YS, Han X, Liu XH. STAT3: A Potential Drug Target for Tumor and Inflammation. Curr Top Med Chem 2019; 19:1305-1317. [PMID: 31218960 DOI: 10.2174/1568026619666190620145052] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/25/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022]
Abstract
STAT (Signal Transducers and Activators of Transcription) is a cellular signal transcription factor involved in the regulation of many cellular activities, such as cell differentiation, proliferation, angiogenesis in normal cells. During the study of the STAT family, STAT3 was found to be involved in many diseases, such as high expression and sustained activation of STAT3 in tumor cells, promoting tumor growth and proliferation. In the study of inflammation, it was found that it plays an important role in the anti-inflammatory and repairing of damage tissues. Because of the important role of STAT3, a large number of studies have been obtained. At the same time, after more than 20 years of development, STAT3 has also been used as a target for drug therapy. And the discovery of small molecule inhibitors also promoted the study of STAT3. Since STAT3 has been extensively studied in inflammation and tumor regulation, this review presents the current state of research on STAT3.
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Affiliation(s)
- Yang Sheng Hu
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, 230032, China
| | - Xu Han
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, 230032, China
| | - Xin Hua Liu
- School of Pharmacy, Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, 230032, China
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20
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Zhao LM, Zhang JH. Histone Deacetylase Inhibitors in Tumor Immunotherapy. Curr Med Chem 2019; 26:2990-3008. [PMID: 28762309 DOI: 10.2174/0929867324666170801102124] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 04/26/2017] [Accepted: 06/27/2017] [Indexed: 01/20/2023]
Abstract
BACKGROUND With an increasing understanding of the antitumor immune response, considerable progress has been made in the field of tumor immunotherapy in the last decade. Inhibition of histone deacetylases represents a new strategy in tumor therapy and histone deacetylase inhibitors have been recently developed and validated as potential antitumor drugs. In addition to the direct antitumor effects, histone deacetylase inhibitors have been found to have the ability to improve tumor recognition by immune cells that may contribute to their antitumor activity. These immunomodolutory effects are desirable, and their in-depth comprehension will facilitate the design of novel regimens with improved clinical efficacy. OBJECTIVE Our goal here is to review recent developments in the application of histone deacetylase inhibitors as immune modulators in cancer treatment. METHODS Systemic compilation of the relevant literature in this field. RESULTS & CONCLUSION In this review, we summarize recent advances in the understanding of how histone deacetylase inhibitors alter immune process and discuss their effects on various cytokines. We also discuss the challenges to optimize the use of these inhibitors as immune modulators in cancer treatment. Information gained from this review will be valuable to this field and may be helpful for designing tumor immunotherapy trials involving histone deacetylase inhibitors.
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Affiliation(s)
- Li-Ming Zhao
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.,State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, Guangxi, China
| | - Jie-Huan Zhang
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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21
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Zhang H, Zhao X, Liu H, Jin H, Ji Y. Trichostatin A inhibits proliferation of PC3 prostate cancer cells by disrupting the EGFR pathway. Oncol Lett 2019; 18:687-693. [PMID: 31289542 PMCID: PMC6546995 DOI: 10.3892/ol.2019.10384] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/04/2019] [Indexed: 01/10/2023] Open
Abstract
Prostate cancer (PC) is the most common type of malignancy to exist in men within developed countries. Androgen deprivation therapy is performed for metastatic and advanced PC. However, the majority of cases of prostate cancer become refractory during therapy, leading to castration-resistant PC (CRPC). Histone deacetylases (HDACs) are key factors in regulating gene transcription and have been associated with cancer development. In the present study the small molecule inhibitor trichostatin A (TSA), which targets HDACs, was demonstrated to inhibit the proliferation of CRPC PC3 cells by disrupting the epidermal growth factor receptor (EGFR)-STAT3 pathway. The expression of EGFR and STAT3 was downregulated following TSA treatment, and cell cycle arrest was induced by downregulating the expression of cyclin D1 and CDK6, and via retinoblastoma protein phosphorylation. Furthermore, the transcription of cyclin D1 and CDK6 was suppressed by TSA. Apoptosis of PC3 cells treated with TSA was also investigated, and it was revealed that TSA induced apoptosis by upregulating BAX and downregulating BCL-2. The combination of TSA with doxorubicin exerted a synergistic inhibitory effect on PC3 cell proliferation through the induction of apoptosis. The results of the present study revealed a promising epigenetic-based therapeutic strategy that could be implemented in cases of CRPC.
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Affiliation(s)
- Hong Zhang
- Department of Clinical Medicine, Changchun Medical College, Changchun, Jilin 130031, P.R. China
| | - Xin Zhao
- Department of Clinical Medicine, Changchun Medical College, Changchun, Jilin 130031, P.R. China
| | - Hongbo Liu
- Department of Clinical Medicine, Changchun Medical College, Changchun, Jilin 130031, P.R. China
| | - Hui Jin
- Department of Pain Medical Center, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
| | - Youbo Ji
- Department of Pain Medical Center, The Second Hospital of Jilin University, Changchun, Jilin 130041, P.R. China
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22
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The correlation between phosphorylated Histone H3 (PHH3) and p-STAT3 in Meningiomas. Clin Neurol Neurosurg 2019; 178:46-50. [DOI: 10.1016/j.clineuro.2019.01.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 12/19/2018] [Accepted: 01/24/2019] [Indexed: 12/26/2022]
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23
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Two decades of research in discovery of anticancer drugs targeting STAT3, how close are we? Pharmacol Ther 2018; 191:74-91. [DOI: 10.1016/j.pharmthera.2018.06.006] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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24
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Xiong D, Jin C, Ye X, Qiu B, Jianjun X, Zhu S, Xiang L, Wu H, Yongbing W. TRIM44 promotes human esophageal cancer progression via the AKT/mTOR pathway. Cancer Sci 2018; 109:3080-3092. [PMID: 30098109 PMCID: PMC6172051 DOI: 10.1111/cas.13762] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 07/25/2018] [Accepted: 08/01/2018] [Indexed: 12/29/2022] Open
Abstract
Aberrant expression of TRIM‐containing protein 44 (TRIM44) acts as a promoter in multiple cancers. Here, we investigated the biological functions and clinical significance of TRIM44 in human esophageal cancer (HEC). TRIM44 expression was significantly higher in HEC tissues than corresponding normal tissues at both the mRNA (2.42 ± 0.52 vs 0.99 ± 0.25) and protein (1.01 ± 0.27 vs 0.30 ± 0.13) levels. Patients with high TRIM44 expression showed poor differentiation (P = 1.39 × 10−5), advanced TNM stage (P = 3.87 × 10−4) and, most importantly, significantly poorer prognosis (P = 2.80 × 10−5). TRIM44 played a crucial role in epithelial mesenchymal transition (EMT). A significant correlation was observed between TRIM44 and Ki67 expression. We demonstrated that TRIM44 markedly enhanced HEC cell proliferation, migration, and invasion. Additionally, TRIM44 was involved in the AKT/mTOR signaling pathway and its downstream targets, such as STAT3 phosphorylation. Thus, elevated TRIM44 expression promotes HEC development by EMT via the AKT/mTOR pathway, and TRIM44 may be a novel prognostic indicator for HEC patients after curative resection.
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Affiliation(s)
- Dian Xiong
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China.,Department of Thoracic Surgery, The Central Hospital of Xuhui District, Shanghai, China
| | - Chun Jin
- Department of Thoracic Surgery, The Central Hospital of Xuhui District, Shanghai, China.,Department of Thoracic Surgery, The Affiliated Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xudong Ye
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Baiquan Qiu
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Xu Jianjun
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Shuqiang Zhu
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Long Xiang
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Haibo Wu
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
| | - Wu Yongbing
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Nanchang University, Jiangxi Province, China
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25
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West AJ, Tsui V, Stylli SS, Nguyen HPT, Morokoff AP, Kaye AH, Luwor RB. The role of interleukin-6-STAT3 signalling in glioblastoma. Oncol Lett 2018; 16:4095-4104. [PMID: 30250528 PMCID: PMC6144698 DOI: 10.3892/ol.2018.9227] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/26/2018] [Indexed: 12/18/2022] Open
Abstract
Glioblastoma is the most common type of malignant brain tumor among adults and is currently a non-curable disease due primarily to its highly invasive phenotype, and the lack of successful current therapies. Despite surgical resection and post-surgical treatment patients ultimately develop recurrence of the tumour. Several signalling molecules have been implicated in the development, progression and aggressiveness of glioblastoma. The present study reviewed the role of interleukin (IL)-6, a cytokine known to be important in activating several pro-oncogenic signaling pathways in glioblastoma. The current study particularly focused on the contribution of IL-6 in recurrent glioblastoma, with particular focus on glioblastoma stem cells and resistance to therapy.
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Affiliation(s)
- Alice J West
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Vanessa Tsui
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Stanley S Stylli
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia.,Department of Neurosurgery, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Hong P T Nguyen
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Andrew P Morokoff
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia.,Department of Neurosurgery, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Andrew H Kaye
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia.,Department of Neurosurgery, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
| | - Rodney B Luwor
- Department of Surgery, The University of Melbourne, The Royal Melbourne Hospital, Parkville, VIC 3050, Australia
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26
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Chiu CM, Huang SY, Chang SF, Liao KF, Chiu SC. Synergistic antitumor effects of tanshinone IIA and sorafenib or its derivative SC-1 in hepatocellular carcinoma cells. Onco Targets Ther 2018; 11:1777-1785. [PMID: 29636623 PMCID: PMC5881525 DOI: 10.2147/ott.s161534] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) is the most common form of hepatic malignancy in the world. We aimed to determine the effect of tanshinone IIA (Tan-IIA) in combination with sorafenib or its derivative SC-1 on cytotoxicity, apoptosis, and metastasis in human HCC cells. Materials and methods Cytotoxicity was detected by MTT assay. Apoptosis and sub-G1 populations were analyzed by flow cytometry. Cell migration and invasion were evaluated by Transwell assay. Protein expression was detected by Western blot. Results Tan-IIA combined with sorafenib or SC-1 exerted synergistic cytotoxicity in HCC cells. Elevated proportions of sub-G1 and caspase activation were observed in the combinative treatments; in addition, marked inhibition of cell migration and invasion, which could be mediated by the modulation of epithelial–mesenchymal transition was observed. pSTAT3 levels were significantly reduced as well. Conclusion A combination therapy using Tan-IIA and sorafenib or SC-1 could be a promising approach to target HCC, and further preclinical investigations are warranted to establish their synergetic advantage.
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Affiliation(s)
- Chien-Ming Chiu
- Division of Colorectal Surgery, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Sung-Ying Huang
- Department of Ophthalmology, Hsinchu Mackay Memorial Hospital, Hsinchu, Taiwan
| | - Shu-Fang Chang
- Department of Research, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Kuan-Fu Liao
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.,Department of Internal Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Sheng-Chun Chiu
- Department of Research, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan.,Department of Laboratory Medicine, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan.,General Education Center, Tzu Chi University of Science and Technology, Hualien, Taiwan
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27
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Amrouche K, Jamin C. Influence of drug molecules on regulatory B cells. Clin Immunol 2017; 184:1-10. [DOI: 10.1016/j.clim.2017.04.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 04/27/2017] [Indexed: 02/07/2023]
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28
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Chang N, Ahn SH, Kong DS, Lee HW, Nam DH. The role of STAT3 in glioblastoma progression through dual influences on tumor cells and the immune microenvironment. Mol Cell Endocrinol 2017; 451:53-65. [PMID: 28089821 DOI: 10.1016/j.mce.2017.01.004] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 01/05/2017] [Indexed: 01/07/2023]
Abstract
Glioblastoma multiforme (GBM) is the most aggressive form of cancer that begins within the brain; generally, the patient has a dismal prognosis and limited therapeutic options. Signal transducer and activator of transcription 3 (STAT3) is a critical mediator of tumorigenesis, tumor progression, and suppression of anti-tumor immunity in GBM. In a high percentage of GBM cells and tumor microenvironments, persistent activation of STAT3 induces cell proliferation, anti-apoptosis, glioma stem cell maintenance, tumor invasion, angiogenesis, and immune evasion. This makes STAT3 an attractive therapeutic target and a prognostic indicator in GBM. Targeting STAT3 affords an opportunity to disrupt multiple pro-oncogenic pathways at a single molecular hub. Unfortunately, there are no successful STAT3 inhibitors currently in clinical trials. However, strong clinical evidence implicating STAT3 as a major factor in GBM justifies the identification of safe and effective strategies for inhibiting STAT3.
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Affiliation(s)
- Nakho Chang
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, South Korea; Institute for Refractory Cancer Research, Samsung Medical Center, Seoul 06351, South Korea
| | - Sun Hee Ahn
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, South Korea; Institute for Refractory Cancer Research, Samsung Medical Center, Seoul 06351, South Korea
| | - Doo-Sik Kong
- Departments of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, South Korea
| | - Hye Won Lee
- Institute for Refractory Cancer Research, Samsung Medical Center, Seoul 06351, South Korea; Institute for Future Medicine, Samsung Medical Center, Seoul 06351, South Korea.
| | - Do-Hyun Nam
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, South Korea; Institute for Refractory Cancer Research, Samsung Medical Center, Seoul 06351, South Korea; Departments of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, South Korea.
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29
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Tanshinone IIA Inhibits Epithelial-Mesenchymal Transition in Bladder Cancer Cells via Modulation of STAT3-CCL2 Signaling. Int J Mol Sci 2017; 18:ijms18081616. [PMID: 28757590 PMCID: PMC5578008 DOI: 10.3390/ijms18081616] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/20/2017] [Accepted: 07/21/2017] [Indexed: 02/06/2023] Open
Abstract
Tanshinone IIA (Tan-IIA) is an extract from the widely used traditional Chinese medicine (TCM) Danshen (Salvia miltiorrhiza), and has been found to attenuate the proliferation of bladder cancer (BCa) cells (The IC50 were: 5637, 2.6 μg/mL; BFTC, 2 μg/mL; T24, 2.7 μg/mL, respectively.). However, the mechanism of the effect of Tan-IIA on migration inhibition of BCa cells remains unclear. This study investigates the anti-metastatic effect of Tan-IIA in human BCa cells and clarifies its molecular mechanism. Three human BCa cell lines, 5637, BFTC and T24, were used for subsequent experiments. Cell migration and invasion were evaluated by transwell assays. Real-time RT-PCR and western blotting were performed to detect epithelial-mesenchymal transition (EMT)-related gene expression. The enzymatic activity of matrix metalloproteinases (MMP) was evaluated by zymography assay. Tan-IIA inhibited the migration and invasion of human BCa cells. Tan-IIA suppressed both the protein expression and enzymatic activity of MMP-9/-2 in human BCa cells. Tan-IIA up-regulated the epithelial marker E-cadherin and down-regulated mesenchymal markers such as N-cadherin and Vimentin, along with transcription regulators such as Snail and Slug in BCa cells in a time- and dose-dependent manner. Mechanism dissection revealed that Tan-IIA-inhibited BCa cell invasion could function via suppressed chemokine (C-C motif) ligand 2 (CCL2) expression, which could be reversed by the addition of CCL2 recombinant protein. Furthermore, Tan-IIA could inhibit the phosphorylation of the signal transducer and activator of transcription 3 (STAT3) (Tyr705), which cannot be restored by the CCL2 recombinant protein addition. These data implicated that Tan-IIA might suppress EMT on BCa cells through STAT3-CCL2 signaling inhibition. Tan-IIA inhibits EMT of BCa cells via modulation of STAT3-CCL2 signaling. Our findings suggest that Tan-IIA can serve as a potential anti-metastatic agent in BCa therapy.
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30
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Garg SM, Vakili MR, Molavi O, Lavasanifar A. Self-Associating Poly(ethylene oxide)-block-poly(α-carboxyl-ε-caprolactone) Drug Conjugates for the Delivery of STAT3 Inhibitor JSI-124: Potential Application in Cancer Immunotherapy. Mol Pharm 2017; 14:2570-2584. [PMID: 28221800 DOI: 10.1021/acs.molpharmaceut.6b01119] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Constitutive activation of signal transducer and activator of transcription 3 (STAT3) in tumor cells and tumor associated dendritic cells (DCs) plays a major role in the progression of cancer. JSI-124 (cucurbitacin I) is a potent inhibitor of STAT3; however, its poor solubility and nonspecificity limit its effectiveness in cancer immunotherapy. In order to achieve a nanocarrier for solubilization and passive targeting of JSI-124 to tumor cells and tumor associated DCs, the drug was chemically conjugated to pendent COOH groups of self-associating poly(ethylene oxide)-block-poly(α-carboxylate-ε-caprolactone) (PEO-b-PCCL). Developed PEO-b-P(CL-JSI-124) conjugates self-assembled to polymeric micelles of 40 nm size range with negligible drug release under physiological mimicking conditions. The conjugation of JSI-124 to PEO-b-PCCL was confirmed by 1H NMR, thin layer chromatography (TLC), and HPLC with a conjugation of 8.9% w/w of the polymer. As expected, JSI-124 nanoconjugates showed lower potency in p-STAT3 inhibition and direct anticancer activity in B16-F10 melanoma cells. Interestingly, JSI-124 nanoconjugates were more powerful than free drug in reducing the level of p-STAT3 in tumor exposed bone marrow derived dendritic cells (BMDCs). The JSI-124 nanoconjugates were also significantly more active than free drug in reversing the immunosuppressive effect of B16-F10 tumor and led to significantly better phenotypical and functional stimulation of tumor exposed immature BMDCs in the presence of immune adjuvants like LPS and CpG. Our findings points to great promise for PEO-b-P(CL-JSI-124) micelles for modulation of immunosuppressive microenvironment in melanoma tumors, implicating application of this strategy in cancer immunotherapy.
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Affiliation(s)
- Shyam M Garg
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta , Edmonton, Alberta, Canada
| | - Mohammad Reza Vakili
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta , Edmonton, Alberta, Canada
| | - Ommoleila Molavi
- Faculty of Pharmacy, Tabriz University of Medical Sciences , Tabriz, Iran
| | - Afsaneh Lavasanifar
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta , Edmonton, Alberta, Canada.,Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta , Edmonton, Alberta, Canada
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31
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Johnson M, O'Connell M, Walter K. STAT3 activation and risk of recurrence in meningiomas. Oncol Lett 2017; 13:2432-2436. [PMID: 28454415 DOI: 10.3892/ol.2017.5736] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 11/17/2016] [Indexed: 02/06/2023] Open
Abstract
Several studies have suggested that activation of signal transducer and activator of transcription 3 (STAT3) is associated with initiation, progression and metastasis of numerous types of malignancy. However, the role of the Janus kinase-interleukin 6-STAT3 signaling pathway in the pathogenesis and recurrence of meningiomas is unknown. The present study evaluated STAT3 activation by western blotting and immunohistochemistry and assessed its association with Ki-67 labeling in 13 cases of meningioma in which frozen tissue and ≥5.5-year follow-up information were available, and in formalin-fixed meningioma tissues from 14 cases with an 8.4-year follow-up. The results of the western blot analysis indicated that STAT3 phosphorylation was markedly higher in grade II meningiomas compared with that in grade I, with mean densitometric values of 8.6 and 1.7 following normalization to actin, respectively. High STAT3 phosphorylation/activation was identified in 2 of 3 recurrent World Health Organization (WHO) grade I meningiomas and 0 of 3 non-recurrent meningiomas. Strong STAT3 phosphorylation/activation signal was also found in 2 of 4 recurrent grade II meningiomas and 1 of 3 non-recurrent cases. According to the immunohistochemistry results, phospho-STAT3 was not increased in WHO grade II tumors compared with that in grade I tumors, and was not significantly different between recurrent and non-recurrent cases. Ki-67 labeling was significantly increased in grade II vs. grade I tumors, and was also significantly increased in recurrent compared with non-recurrent grade I meningiomas. The results of the current study suggest that, while detection of phosphorylated/activated STAT3 may be useful in isolated cases, identifying activation may be of little value in predicting recurrence.
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Affiliation(s)
- Mahlon Johnson
- Department of Pathology, Division of Neuropathology, University of Rochester, Rochester, NY 14623, USA
| | - Mary O'Connell
- Department of Pathology, Division of Neuropathology, University of Rochester, Rochester, NY 14623, USA
| | - Kevin Walter
- Department of Neurosurgery, University of Rochester, Rochester, NY 14623, USA
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32
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Xu J, Lin H, Li G, Sun Y, Shi L, Ma WL, Chen J, Cai X, Chang C. Sorafenib with ASC-J9 ® synergistically suppresses the HCC progression via altering the pSTAT3-CCL2/Bcl2 signals. Int J Cancer 2016; 140:705-717. [PMID: 27668844 PMCID: PMC5215679 DOI: 10.1002/ijc.30446] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 09/07/2016] [Accepted: 09/09/2016] [Indexed: 12/21/2022]
Abstract
Sorafenib is currently used as a standard treatment to suppress the progression of hepatocellular carcinoma (HCC), especially in advanced stages. However, patients who receive Sorafenib treatment eventually develop resistance without clear mechanisms. There is a great need for better efficacy of Sorafenib treatment in combination with other therapies. Here, we demonstrated that the treatment combining Sorafenib with ASC‐J9® could synergistically suppress HCC progression via altering cell‐cycle regulation, apoptosis and invasion. Mechanism dissection suggests that while Sorafenib impacts little or even slightly increases the activated/phosphorylated STAT3 (p‐STAT3), a key stimulator to promote the HCC progression, adding ASC‐J9® significantly suppresses the p‐STAT3 expression and its downstream genes including CCL2 and Bcl2. Interrupting these signals via constitutively active STAT3 partially reverses the synergistic suppression of Sorafenib‐ASC‐J9® combination on HCC progression. In vivo studies further confirmed the synergistic effect of Sorafenib‐ASC‐J9® combination. Together, these results suggest the newly developed Sorafenib‐ASC‐J9® combination is a novel therapy to better suppress HCC progression. What's new? Sorafenib is currently a standard treatment to suppress the progression of hepatocellular carcinoma (HCC). STAT3 activation may however play a role in the development of Sorafenib resistance. Following earlier studies suggesting that ASC‐J9® may alter activated p‐STAT3 signals to suppress prostate cancer metastasis, here the authors found that combining Sorafenib with ASC‐J9® may synergistically suppress HCC progression. Sorafenib had little impact on p‐STAT3, whereas ASC‐J9® significantly suppressed p‐STAT3 expression and its downstream genes, including CCL2 and Bcl2. Clinical studies using human HCC samples also demonstrated that higher expression of p‐STAT3 might be linked to the lower response to Sorafenib treatment.
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Affiliation(s)
- Junjie Xu
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China.,George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, USA
| | - Hui Lin
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Gonghui Li
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Yin Sun
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, USA
| | - Liang Shi
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China.,George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, USA
| | - Wen-Lung Ma
- Sex Hormone Research Center, China Medical University/Hospital, Taichung, Taiwan
| | - Jiang Chen
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Xiujun Cai
- Chawnshang Chang Liver Cancer Center, Departments of General Surgery and Urology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Chawnshang Chang
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY, USA.,Sex Hormone Research Center, China Medical University/Hospital, Taichung, Taiwan
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33
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4-Carbonyl-2,6-dibenzylidenecyclohexanone derivatives as small molecule inhibitors of STAT3 signaling pathway. Bioorg Med Chem 2016; 24:6174-6182. [PMID: 27816267 DOI: 10.1016/j.bmc.2016.09.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/27/2016] [Accepted: 09/28/2016] [Indexed: 12/20/2022]
Abstract
Inhibition of STAT3 signaling pathway is proposed to be a promising strategy for cancer treatment. In this study, a series of 4-carbonyl-2,6-dibenzylidenecyclohexanone derivatives were prepared and evaluated as anticancer agents. The most potent compound 13r was discovered to exhibit antiproliferative activity against a broad rang of cancer cell lines and relatively low cytotoxicity against normal human cells. Besides, 13r effectively suppressed STAT3 expression as well as phosphorylation, and surface plasmon resonance analysis confirmed the direct interaction of 13r with STAT3. Docking simulation showed that 13r could inhibit STAT3 by targeting SH2 domain. This study provided evidence for these compounds to be further developed as antitumor agents through inhibition of the STAT3 pathway.
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Cacalano NA. Regulation of Natural Killer Cell Function by STAT3. Front Immunol 2016; 7:128. [PMID: 27148255 PMCID: PMC4827001 DOI: 10.3389/fimmu.2016.00128] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 03/21/2016] [Indexed: 01/05/2023] Open
Abstract
Natural killer (NK) cells, key members of a distinct hematopoietic lineage, innate lymphoid cells, are not only critical effectors that mediate cytotoxicity toward tumor and virally infected cells but also regulate inflammation, antigen presentation, and the adaptive immune response. It has been shown that NK cells can regulate the development and activation of many other components of the immune response, such as dendritic cells, which in turn, modulate the function of NK cells in multiple synergistic feed back loops driven by cell–cell contact, and the secretion of cytokines and chemokines that control effector function and migration of cells to sites of immune activation. The signal transducer and activator of transcription (STAT)-3 is involved in driving almost all of the pathways that control NK cytolytic activity as well as the reciprocal regulatory interactions between NK cells and other components of the immune system. In the context of tumor immunology, NK cells are a first line of defense that eliminates pre-cancerous and transformed cells early in the process of carcinogenesis, through a mechanism of “immune surveillance.” Even after tumors become established, NK cells are critical components of anticancer immunity: dysfunctional NK cells are often found in the peripheral blood of cancer patients, and the lack of NK cells in the tumor microenvironment often correlates to poor prognosis. The pathways and soluble factors activated in tumor-associated NK cells, cancer cells, and regulatory myeloid cells, which determine the outcome of cancer immunity, are all critically regulated by STAT3. Using the tumor microenvironment as a paradigm, we present here an overview of the research that has revealed fundamental mechanisms through which STAT3 regulates all aspects of NK cell biology, including NK development, activation, target cell killing, and fine tuning of the innate and adaptive immune responses.
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Affiliation(s)
- Nicholas A Cacalano
- Department of Radiation Oncology, David Geffen School of Medicine at UCLA , Los Angeles, CA , USA
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35
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Immune Checkpoint Modulators: An Emerging Antiglioma Armamentarium. J Immunol Res 2016; 2016:4683607. [PMID: 26881264 PMCID: PMC4736366 DOI: 10.1155/2016/4683607] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 12/31/2022] Open
Abstract
Immune checkpoints have come to the forefront of cancer therapies as a powerful and promising strategy to stimulate antitumor T cell activity. Results from recent preclinical and clinical studies demonstrate how checkpoint inhibition can be utilized to prevent tumor immune evasion and both local and systemic immune suppression. This review encompasses the key immune checkpoints that have been found to play a role in tumorigenesis and, more specifically, gliomagenesis. The review will provide an overview of the existing preclinical and clinical data, antitumor efficacy, and clinical applications for each checkpoint with respect to GBM, as well as a summary of combination therapies with chemotherapy and radiation.
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36
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Abstract
Gliomas are the most common primary brain tumors of the central nervous system, and carry a grim prognosis. Novel approaches utilizing the immune system as adjuvant therapy are quickly emerging as viable and effective options. Immunotherapeutic strategies being investigated to treat glioblastoma include: vaccination therapy targeted against either specific tumor antigens or whole tumor lysate, adoptive cellular therapy with cytotoxic T lymphocytes, chimeric antigen receptors and bi-specific T-cell engaging antibodies allowing circumvention of major histocompatibility complex restriction, aptamer therapy with aims for more efficient target delivery, and checkpoint blockade in order to release the tumor-mediated inhibition of the immune system. Given the heterogeneity of glioblastoma and its ability to gain mutations throughout the disease course, multifaceted treatment strategies utilizing multiple forms of immunotherapy in combination with conventional therapy will be most likely to succeed moving forward.
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Affiliation(s)
- Brandon D Liebelt
- Department of Neurosurgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA; Houston Methodist Neurological Institute, Houston, TX, USA
| | - Gaetano Finocchiaro
- Department of Neuro-oncology, IRCCS Istituto Neurologico Besta, Milan, Italy
| | - Amy B Heimberger
- Department of Neurosurgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Zhang Y, Gallastegui N, Rosenblatt JD. Regulatory B cells in anti-tumor immunity. Int Immunol 2015; 27:521-30. [PMID: 25999597 DOI: 10.1093/intimm/dxv034] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 05/18/2015] [Indexed: 12/19/2022] Open
Abstract
Advances in understanding of the immune microenvironment have highlighted the role of immunosuppressive T cell, myeloid, dendritic and monocytic sub-populations in inhibition of the anti-tumor immune response. The role of B cells in modulating the immune response to solid tumors as well as lymphoid malignancies is less well understood. Murine models of autoimmune disease have defined B regulatory cell (Breg) subsets with immune suppressive activity, including B cell subsets that express IL-10, and transforming growth factor-β, which can facilitate T regulatory cell recruitment and expansion. Multiple murine tumor models point to the existence of similar immune suppressive B cell sub-populations that can migrate into tumor deposits and acquire an immune suppressive phenotype, which then leads to attenuation of the local anti-tumor immune response. Other murine models of viral or chemically induced skin carcinogenesis have identified a pivotal role for B cells in promoting inflammation and carcinogenesis. While many human solid tumors demonstrate significant B cell infiltration and/or tertiary lymphoid structure formation, the functional properties of tumor-infiltrating B cells and their effects on immunity are poorly understood. Recent successes in early Phase I/II trials using anti-checkpoint inhibitor antibodies such as nivolumab or pidilizumab directed against PD-1 in the setting of Hodgkin's and non-Hodgkin's lymphomas validate the therapeutic utility of reversing B cell-mediated immune suppression. Further studies to define Breg subsets, and mechanisms of suppression, may provide new avenues for modulation of the immune response and meaningful therapeutic intervention in both lymphoid and solid tumors.
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Affiliation(s)
- Yu Zhang
- Division of Hematology/Oncology, Department of Medicine, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Nicolas Gallastegui
- Division of Hematology/Oncology, Department of Medicine, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
| | - Joseph D Rosenblatt
- Division of Hematology/Oncology, Department of Medicine, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
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Quinolone-indolone conjugate induces apoptosis by inhibiting the EGFR-STAT3-HK2 pathway in human cancer cells. Mol Med Rep 2015; 12:2749-56. [PMID: 25937091 DOI: 10.3892/mmr.2015.3716] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 03/26/2015] [Indexed: 11/05/2022] Open
Abstract
The epidermal growth factor receptor (EGFR) is involved in the proliferation of human tumors and is an effective target for the treatment of cancer. In the present study, a novel quinolone-indolone conjugate, QIC1 [9-Fluoro-3,7-dihydro-3-methyl-10-(4-methyl -1-piperazinyl) -6-(2-oxo-1,2-dihydro-indol-3-ylidenemethyl) -7-oxo-2H-(1,4) oxazino(2,3,4-ij)quinoline], which targeted EGFR, was synthesized in order to investigate the anticancer activity and the potential mechanisms underlying the effect of this compound in human cancer cells. Using MTT assays it was observed that QIC1 inhibited the growth of HepG2 human hepatoma cells, MCF7 human breast cancer cells, HeLa human cervical cancer cells and A549 human lung adenocarcinoma cells. QIC1 arrested cell cycle progression at the G2/M phase in HepG2 cells. QIC1 inhibited the synthesis of DNA in A549 cells. In addition, it resulted in cell apoptosis, in association with increased expression of Bax and reduced expression of Bcl-2. Further analyses demonstrated that QIC1 attenuated the activity of EGFR, and the downstream signal transducer and activator of transcription 3 (STAT3)-mediated hexokinase II (HK2) signaling pathways. Furthermore, QIC1 exhibited antiproliferative effects in MCF7/DOX human doxorubicin-resistant breast cancer cells and also enhanced the anticancer activity of doxorubicin in these cells. In conclusion, the inhibition of proliferation and the induction of apoptosis was associated with reduced expression of phospho-EGFR-phospho-STAT3-HK2. The present results suggest a potential role for QIC1 in the treatment of human cancer.
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Ferguson SD, Srinivasan VM, Heimberger AB. The role of STAT3 in tumor-mediated immune suppression. J Neurooncol 2015; 123:385-94. [PMID: 25700834 DOI: 10.1007/s11060-015-1731-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 02/01/2015] [Indexed: 02/07/2023]
Abstract
The role of tumor-induced immune modulation in cancer progression is currently a focus of investigation. The signal transducer and activator of transcription 3 (STAT3) is an established molecular hub of immunosuppression, and its signaling pathways are classically overactivated within malignancies. This article will review STAT3 operational mechanisms within the immune system and the tumor microenvironment, with a focus on therapeutic strategies that may impact outcomes for patients with cancer.
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Affiliation(s)
- Sherise D Ferguson
- Department of Neurosurgery, The University of Texas M. D. Anderson Cancer Center, 1400 Holcombe Blvd., Unit 442, Houston, TX, 77030, USA,
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STAT3 in Cancer-Friend or Foe? Cancers (Basel) 2014; 6:1408-40. [PMID: 24995504 PMCID: PMC4190548 DOI: 10.3390/cancers6031408] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 06/19/2014] [Accepted: 06/20/2014] [Indexed: 12/25/2022] Open
Abstract
The roles and significance of STAT3 in cancer biology have been extensively studied for more than a decade. Mounting evidence has shown that constitutive activation of STAT3 is a frequent biochemical aberrancy in cancer cells, and this abnormality directly contributes to tumorigenesis and shapes many malignant phenotypes in cancer cells. Nevertheless, results from more recent experimental and clinicopathologic studies have suggested that STAT3 also can exert tumor suppressor effects under specific conditions. Importantly, some of these studies have demonstrated that STAT3 can function either as an oncoprotein or a tumor suppressor in the same cell type, depending on the specific genetic background or presence/absence of specific coexisting biochemical defects. Thus, in the context of cancer biology, STAT3 can be a friend or foe. In the first half of this review, we will highlight the “evil” features of STAT3 by summarizing its oncogenic functions and mechanisms. The differences between the canonical and non-canonical pathway will be highlighted. In the second half, we will summarize the evidence supporting that STAT3 can function as a tumor suppressor. To explain how STAT3 may mediate its tumor suppressor effects, we will discuss several possible mechanisms, one of which is linked to the role of STAT3β, one of the two STAT3 splicing isoforms. Taken together, it is clear that the roles of STAT3 in cancer are multi-faceted and far more complicated than one appreciated previously. The new knowledge has provided us with new approaches and strategies when we evaluate STAT3 as a prognostic biomarker or therapeutic target.
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Katsha A, Arras J, Soutto M, Belkhiri A, El-Rifai W. AURKA regulates JAK2-STAT3 activity in human gastric and esophageal cancers. Mol Oncol 2014; 8:1419-28. [PMID: 24953013 DOI: 10.1016/j.molonc.2014.05.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 05/09/2014] [Accepted: 05/23/2014] [Indexed: 12/16/2022] Open
Abstract
Aurora kinase A is a frequently amplified and overexpressed gene in upper gastrointestinal adenocarcinomas (UGCs). Using in vitro cell models of UGCs, we investigated whether AURKA can regulate Signal Transducer and Activator of Transcription 3 (STAT3). Our data indicate that overexpression of AURKA in FLO-1 and AGS cells increase STAT3 phosphorylation at the Tyr705 site, whereas AURKA genetic depletion by siRNA results in decreased phosphorylation levels of STAT3 in FLO-1 and MKN45 cells. Immunofluorescence analysis showed that AURKA overexpression enhanced STAT3 nuclear translocation while AURKA genetic knockdown reduced the nuclear translocation of STAT3 in AGS and FLO-1 cells, respectively. Using a luciferase reporter assay, we demonstrated that AURKA expression induces transcriptional activity of STAT3. Pharmacological inhibition of AURKA by MLN8237 reduced STAT3 phosphorylation along with down-regulation of STAT3 pro-survival targets, BCL2 and MCL1. Moreover, by using clonogenic cells survival assay, we showed that MLN8237 single dose treatment reduced the ability of FLO-1 and AGS cells to form colonies. Additional experiments utilizing cell models of overexpression and knockdown of AURKA indicated that STAT3 upstream non-receptor tyrosine kinase Janus kinase 2 (JAK2) is mediating the effect of AURKA on STAT3. The inhibition of JAK2 using JAK2-specific inhibitor AZD1480 or siRNA knockdown, in presence of AURKA overexpression, abrogated the AURKA-mediated STAT3 activation. These results confirm that the AURKA-JAK2 axis is the main mechanism by which AURKA regulates STAT3 activity. In conclusion, we report, for the first time, that AURKA promotes STAT3 activity through regulating the expression and phosphorylation levels of JAK2. This highlights the importance of targeting AURKA as a therapeutic approach to treat gastric and esophageal cancers.
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Affiliation(s)
- Ahmed Katsha
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Janet Arras
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Mohammed Soutto
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Abbes Belkhiri
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Wael El-Rifai
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, United States.
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STAT3 Activation in Glioblastoma: Biochemical and Therapeutic Implications. Cancers (Basel) 2014; 6:376-95. [PMID: 24518612 PMCID: PMC3980601 DOI: 10.3390/cancers6010376] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 01/19/2014] [Accepted: 01/29/2014] [Indexed: 02/04/2023] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a potent regulator of gliomagenesis through its induction of angiogenesis, host immunosuppression, and tumor invasion. Gain of function mutations result in constitutive activation of STAT3 in glioma cells, making STAT3 an attractive target for inhibition in cancer therapy. Nevertheless, some studies show that STAT3 also participates in terminal differentiation and apoptosis of various cell lines and in glioma with phosphatase and tensin homolog (PTEN)-deficient genetic backgrounds. In light of these findings, the utility of STAT3 as a prognostic indicator and as a target of drug therapies will be contingent on a more nuanced understanding of its pro- and anti-tumorigenic effects.
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Coppin C. Immunotherapy for renal cell cancer in the era of targeted therapy. Expert Rev Anticancer Ther 2014; 8:907-19. [DOI: 10.1586/14737140.8.6.907] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Johnson MD, O’Connell MJ, Walter K. Cucurbitacin I blocks cerebrospinal fluid and platelet derived growth factor-BB stimulation of leptomeningeal and meningioma DNA synthesis. Altern Ther Health Med 2013; 13:303. [PMID: 24188277 PMCID: PMC4228312 DOI: 10.1186/1472-6882-13-303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 10/29/2013] [Indexed: 02/02/2023]
Abstract
Background Currently, there are no consistently effective chemotherapies for recurrent and inoperable meningiomas. Recently, cucurbitacin I (JSI-124), a naturally occurring tetracyclic triterpenoid compound used as folk medicines has been found to have cytoxic and anti-proliferative properties in several malignancies thru inhibition of activator of transcription (STAT3) activation. Previously, we have found STAT3 to be activated in meningiomas, particularly higher grade tumors. Methods Primary leptomeningeal cultures were established from 17, 20 and 22 week human fetuses and meningioma cell cultures were established from 6 World Health Organization (WHO) grade I or II meningiomas. Cells were treated with cerebrospinal fluid from patients without neurologic disease. The effects of cucurbitacin I on cerebrospinal fluid stimulation of meningioma cell DNA synthesis phosphorylation/activation of JAK1, STAT3, pMEK1/2, p44/42MAPK, Akt, mTOR, Rb and caspase 3 activation were analyzed in human leptomeningeal and meningioma cells. Results Cerebrospinal fluid significantly stimulated DNA synthesis in leptomeningeal cells. Co-administration of cucurbitacin I (250 nM) produces a significant blockade of this effect. Cucurbitacin I alone also produced a significant reduction in basal DNA synthesis. In grade I and II meningiomas, cerebrospinal fluid also significantly stimulated DNA synthesis. Co-administration of cucurbitacin I (250 nM) blocked this effect. In the leptomeningeal cultures, cerebrospinal fluid stimulated STAT3 phosphorylation but not p44/42MAPK, Akt or mTOR. Cucurbitacin I had no effect on basal STAT3 phosphorylation but co-administration with cerebrospinal fluid blocked cerebrospinal fluid stimulation of STAT3 phosphorylation in each. In the grade I meningiomas, cerebrospinal fluid stimulated phosphorylation of STAT3 and decreased MEK1/2 and cucurbitacin I had no effect on basal STAT3, p44/42MAPK, Akt, JAK1, mTOR, or Rb phosphorylation. In the grade II meningiomas, cerebrospinal fluid stimulated STAT3 phosphorylation in all and reduced phosphorylation of MEK1/2 in all and p44/42MAPK in one. Cucurbitacin I had no effect on basal phosphorylation of STAT3 but reduced phorphorylated p44/42 MAPK in 2 grade II meningioma cells lines. Conclusions These studies raise the possibility that cucurbitacin I might have value as an adjunct chemotherapy. Additional studies are warranted to evaluate the effects of cucurbitacin I on meningiomas in vivo.
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Emeagi PU, Maenhout S, Dang N, Heirman C, Thielemans K, Breckpot K. Downregulation of Stat3 in melanoma: reprogramming the immune microenvironment as an anticancer therapeutic strategy. Gene Ther 2013; 20:1085-92. [PMID: 23804077 DOI: 10.1038/gt.2013.35] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 03/11/2013] [Accepted: 03/18/2013] [Indexed: 01/11/2023]
Abstract
Persistent activation of the transcription factor, signal transducer and activator of transcription 3 (Stat3) has been shown to mediate several oncogenic features in many types of cancers, including melanoma. In this study, we investigated whether lentiviral (LV) delivery of Stat3-targeting short hairpin RNA (shRNA; LV-shStat3) to K1735-C4 melanoma cells modulates antitumor immunity. Three shStat3 sequences, starting at the position 446, 830 and 1412, were cloned into a mir30 cassette. A shRNA with scrambled sequence served as a control. Transduction with LV-shStat3 resulted in downregulation of Stat3 in vitro. The latter coincided with low cell viability, a reduced expression of survivin and matrix metalloproteinase (MMP)-2. A single injection of LV-shStat3 in K1735-C4 tumors efficiently downregulated Stat3 in vivo and resulted in reduction of both vascular endothelial growth factor secretion and in myeloid-derived suppressor cell (MDSC) numbers. In contrast, we observed an increase in interleukin-6 and interferon-γ secretion, mature dendritic cells (DCs) and CD8(+) T cells. Both DCs and CD8(+) T cells displayed enhanced activity, whereas granulocytic MDSCs lost their suppressive capacity upon Stat3 downregulation. Importantly, a single injection of LV-shStat3 was sufficient to reduce tumor growth, hence prolong survival of tumor-bearing mice. These data demonstrate that Stat3 downregulation in melanoma reinvigorates existing antitumor immunity.
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Affiliation(s)
- P U Emeagi
- Laboratory of Molecular and Cellular Therapy, Department of Immunology-Physiology, Vrije Universiteit Brussel, Jette, Belgium
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Takeuchi A, Shiota M, Tatsugami K, Yokomizo A, Kuroiwa K, Dejima T, Tanaka S, Itsumi M, Eto M, Naito S. YB-1 suppression induces STAT3 proteolysis and sensitizes renal cancer to interferon-α. Cancer Immunol Immunother 2013; 62:517-27. [PMID: 23052245 PMCID: PMC11029031 DOI: 10.1007/s00262-012-1356-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Accepted: 09/17/2012] [Indexed: 01/15/2023]
Abstract
Renal cell carcinoma (RCC) accounts for 80-95 % of kidney tumors, and approximately 30 % of RCC patients have metastatic disease at diagnosis. Conventional chemotherapy is not effective in patients with metastatic RCC (MRCC); therefore, immunotherapy with interferon-α (IFN-α) has been employed to improve survival. However, the response rate of MRCC to IFN-α therapy is low. We previously reported that a signal transducer and activator 3 (STAT3) polymorphism was a useful diagnostic marker to predict the response to IFN-α therapy in patients with MRCC. Therefore, we hypothesized the inhibition of STAT3 in the addition of IFN-α therapy might be useful. Moreover, the blockage of STAT3 itself has been reported to enhance the antitumor effects. However, because IFN-α is thought to elicit its therapeutic effect via enhancement of an antitumor immune response mediated by lymphocytes that can be activated by IFN-α administrations, it is probable that the suppression of STAT3 in vivo relates to autoimmune disorders. In the present study, we found Y-box binding protein-1 (YB-1) was poorly expressed in T lymphocytes, as compared with cancer tissues. YB-1 was reported to have an important effect on the STAT3 pathway. Suppression of STAT3 by YB-1 inhibition did not seem to enhance the potential risk for autoimmune disorders. Moreover, we found sensitivity to IFN-α was increased by YB-1 suppression, and this suppression did not down-regulate IFN-α activation of T lymphocytes.
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Affiliation(s)
- Ario Takeuchi
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Fan Y, Kong R, Tweardy DJ, Wong ST. WITHDRAWN: Intrinsic molecular characteristics of inhibiting STAT3 activation and dimerization through targeting the phosphotyrosine binding site within the SH2 domain-A molecular dynamics study. J Struct Biol 2013:S1047-8477(13)00042-7. [PMID: 23428430 DOI: 10.1016/j.jsb.2013.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/24/2013] [Accepted: 02/08/2013] [Indexed: 11/18/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Yubo Fan
- The Methodist Hospital Research Institute, Weill Cornell Medical College, Houston, TX 77030, United States.
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Chen WD, Yu D, Forman BM, Huang W, Wang YD. Deficiency of G-protein-coupled bile acid receptor Gpbar1 (TGR5) enhances chemically induced liver carcinogenesis. Hepatology 2013; 57:656-66. [PMID: 22911633 PMCID: PMC3745510 DOI: 10.1002/hep.26019] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 08/07/2012] [Indexed: 12/25/2022]
Abstract
UNLABELLED Gpbar1 (TGR5), a membrane-bound bile acid receptor, is well known for its roles in regulation of energy homeostasis and glucose metabolism. TGR5 activation also inhibits nuclear factor κB (NF-κB)-mediated inflammation. Here we show that TGR5 deficiency enhances chemically induced liver carcinogenesis, and that TGR5 is a negative regulator of signal transducer and activator of transcription 3 (STAT3) signaling. Mice lacking TGR5 were much more susceptible to diethylnitrosamine (DEN)-induced acute liver injury and liver carcinogenesis than wildtype (WT) mice. Consistent with the increasing incidence of liver cancer in TGR5(-/-) mice, hepatocyte death, compensatory proliferation, and gene expression of certain inflammatory cytokines and matrix metalloproteinases were more sensitive to DEN induction in the absence of TGR5 signaling. In vitro, TGR5 activation greatly inhibited proliferation and migration of human liver cancer cells. We then found that TGR5 activation strongly suppressed STAT3 signaling in vitro and in vivo. Furthermore, we observed that TGR5 antagonizes the STAT3 pathway through suppressing STAT3 phosphorylation, its transcription activity, and DNA binding activity, which suggests that TGR5 antagonizes liver tumorigenesis at least in part by inhibiting STAT3 signaling. CONCLUSION These findings identify TGR5 as a novel liver tumor suppressor that may serve as an attractive therapeutic tool for human liver cancer.
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Affiliation(s)
- Wei-Dong Chen
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272,Key laboratory of receptors-mediated gene regulation and drug discovery, School of Medicine, Henan University, Kaifeng, P. R. China
| | - Donna Yu
- Department of Gene Regulation and Drug Discovery, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010
| | - Barry M. Forman
- Department of Gene Regulation and Drug Discovery, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010
| | - Wendong Huang
- Department of Gene Regulation and Drug Discovery, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010,Correspondence: Yan-Dong Wang, Ph.D. Department of Integrative Medical Sciences Northeast Ohio Medical University Rootstown, OH 44272 330-325-6899 ; And to: Wendong Huang, Ph.D. Department of Gene Regulation and Drug Discovery Beckman Research Institute City of Hope National Medical Center Duarte, CA 91010 626-256-4673 Ext. 65203
| | - Yan-Dong Wang
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272,Department of Gene Regulation and Drug Discovery, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010,Correspondence: Yan-Dong Wang, Ph.D. Department of Integrative Medical Sciences Northeast Ohio Medical University Rootstown, OH 44272 330-325-6899 ; And to: Wendong Huang, Ph.D. Department of Gene Regulation and Drug Discovery Beckman Research Institute City of Hope National Medical Center Duarte, CA 91010 626-256-4673 Ext. 65203
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Souza JACD, Rossa C, Garlet GP, Nogueira AVB, Cirelli JA. Modulation of host cell signaling pathways as a therapeutic approach in periodontal disease. J Appl Oral Sci 2012; 20:128-38. [PMID: 22666826 PMCID: PMC3894752 DOI: 10.1590/s1678-77572012000200002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Accepted: 10/26/2010] [Indexed: 01/17/2023] Open
Abstract
Recently, new treatment approaches have been developed to target the host component
of periodontal disease. This review aims at providing updated information on
host-modulating therapies, focusing on treatment strategies for inhibiting signal
transduction pathways involved in inflammation. Pharmacological inhibitors of MAPK,
NFκB and JAK/STAT pathways are being developed to manage rheumatoid arthritis,
periodontal disease and other inflammatory diseases. Through these agents,
inflammatory mediators can be inhibited at cell signaling level, interfering on
transcription factors activation and inflammatory gene expression. Although these
drugs offer great potential to modulate host response, their main limitations are
lack of specificity and developments of side effects. After overcoming these
limitations, adjunctive host modulating drugs will provide new therapeutic strategies
for periodontal treatment.
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Debnath B, Xu S, Neamati N. Small molecule inhibitors of signal transducer and activator of transcription 3 (Stat3) protein. J Med Chem 2012; 55:6645-68. [PMID: 22650325 DOI: 10.1021/jm300207s] [Citation(s) in RCA: 158] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bikash Debnath
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California , 1985 Zonal Avenue, Los Angeles, California 90089, United States
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