1
|
Yang Y, Wu J, Feng S, Yu H, Liu C, Wang S. Notoginsenoside R1 attenuates bupivacaine induced neurotoxicity by activating Jak1/Stat3/Mcl1 pathway. Toxicology 2024; 503:153740. [PMID: 38316350 DOI: 10.1016/j.tox.2024.153740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 02/07/2024]
Abstract
Bupivacaine, a common amide local anesthetic, can provide effective analgesia or pain relief but can also cause neurotoxicity, which remains a mounting concern in clinic and animal care. However, the precise underlying mechanisms have not been fully elucidated. A natural compound, notoginsenoside R1 (NG-R1) has been reported to exhibit a neuroprotective role in stress conditions. In this study, we explored the function and mechanism of NG-R1 in alleviating bupivacaine-induced neurotoxicity in mouse hippocampal neuronal (HT-22) and mouse neuroblastoma (Neuro-2a) cell lines. Our results exhibited that NG-R1 treatment can significantly rescue the decline of cell survival induced by bupivacaine. Tunel staining and western blotting showed that NG-R1 could attenuate BPV‑induced cell apoptosis. Besides, we focused on Mcl1 as a potential target as it showed opposite expression tendency in response to NG-R1 and bupivacaine exposure. Mcl1 knockdown blocked the inhibitory effect of NG-R1 on cell apoptosis against bupivacaine treatment. Intriguingly, we found that NG-R1 can upregulate Mcl1 transcription by activating Stat3 and promote its nuclear translocation. In addition, NG-R1 can also promote Jak1 phosphorylation and docking analysis provide a predicted model for interaction between NG-R1 and phosphorylated Jak1. Taken together, our results demonstrated that NG-R1 can attenuate bupivacaine induced neurotoxicity by activating Jak1/Stat3/Mcl1 pathway.
Collapse
Affiliation(s)
- Yu Yang
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China
| | - Jiwen Wu
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China
| | - Shicheng Feng
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China
| | - Hao Yu
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China
| | - Chuanxin Liu
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China; Department of Psychiatry, Affiliated Hospital of Jining Medical University, Jining, Shandong, China.
| | - Shuai Wang
- School of Mental Health, Jining Medical University, Jining 272013, China; Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Jining Medical University, Jining, Shandong, China.
| |
Collapse
|
2
|
Arévalo J, Campoy I, Durán M, Nemours S, Areny A, Vall-Palomar M, Martínez C, Cantero-Recasens G, Meseguer A. STAT3 phosphorylation at serine 727 activates specific genetic programs and promotes clear cell renal cell carcinoma (ccRCC) aggressiveness. Sci Rep 2023; 13:19552. [PMID: 37945711 PMCID: PMC10636117 DOI: 10.1038/s41598-023-46628-5] [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: 03/17/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
The signal transducer and activator of transcription 3 (STAT3) is a transcription factor mainly activated by phosphorylation in either tyrosine 705 (Y705) or serine 727 (S727) residues that regulates essential processes such as cell differentiation, apoptosis inhibition, or cell survival. Aberrant activation of STAT3 has been related to development of nearly 50% of human cancers including clear cell renal cell carcinoma (ccRCC). In fact, phosho-S727 (pS727) levels correlate with overall survival of ccRCC patients. With the aim to elucidate the contribution of STAT3 phosphorylation in ccRCC development and progression, we have generated human-derived ccRCC cell lines carrying STAT3 Y705 and S727 phosphomutants. Our data show that the phosphomimetic substitution Ser727Asp facilitates a pro-tumoral phenotype in vitro, in a Y705-phosphorylation-independent manner. Moreover, we describe that STAT3 phosphorylation state determines the expression of different subsets of target genes associated with distinct biological processes, being pS727-dependent genes the most related to cellular hallmarks of cancer. In summary, the present study constitutes the first analysis on the role of overall STAT3 phosphorylation state in ccRCC and demonstrates that pS727 promotes the expression of a specific subset of target genes that might be clinically relevant as novel biomarkers and potential therapeutic targets for ccRCC.
Collapse
Affiliation(s)
- J Arévalo
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain.
| | - I Campoy
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - M Durán
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - S Nemours
- Molecular Oncology Group, Biodonostia Health Research Institute, Paseo Dr. Begiristain, s/n, 20014, San Sebastián, Spain
| | - A Areny
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - M Vall-Palomar
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - C Martínez
- Vascular and Renal Translational Research Group, Lleida Institute for Biomedical Research Dr. Pifarré Foundation (IRBLleida), Av. Alcalde Rovira Roure, 80, 25198, Lleida, Spain
| | - G Cantero-Recasens
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain
| | - A Meseguer
- Renal Physiopathology Group, Vall d'Hebron Research Institute, Passeig Vall d'Hebron 119-129, 08035, Barcelona, Spain.
- Unitat de Bioquímica de Medicina, Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Bellaterra, Spain.
| |
Collapse
|
3
|
Park JS, Perl A. Endosome Traffic Modulates Pro-Inflammatory Signal Transduction in CD4 + T Cells-Implications for the Pathogenesis of Systemic Lupus Erythematosus. Int J Mol Sci 2023; 24:10749. [PMID: 37445926 DOI: 10.3390/ijms241310749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/10/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Endocytic recycling regulates the cell surface receptor composition of the plasma membrane. The surface expression levels of the T cell receptor (TCR), in concert with signal transducing co-receptors, regulate T cell responses, such as proliferation, differentiation, and cytokine production. Altered TCR expression contributes to pro-inflammatory skewing, which is a hallmark of autoimmune diseases, such as systemic lupus erythematosus (SLE), defined by a reduced function of regulatory T cells (Tregs) and the expansion of CD4+ helper T (Th) cells. The ensuing secretion of inflammatory cytokines, such as interferon-γ and interleukin (IL)-4, IL-17, IL-21, and IL-23, trigger autoantibody production and tissue infiltration by cells of the adaptive and innate immune system that induce organ damage. Endocytic recycling influences immunological synapse formation by CD4+ T lymphocytes, signal transduction from crosslinked surface receptors through recruitment of adaptor molecules, intracellular traffic of organelles, and the generation of metabolites to support growth, cytokine production, and epigenetic control of DNA replication and gene expression in the cell nucleus. This review will delineate checkpoints of endosome traffic that can be targeted for therapeutic interventions in autoimmune and other disease conditions.
Collapse
Affiliation(s)
- Joy S Park
- Department of Medicine, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
| | - Andras Perl
- Department of Medicine, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Microbiology and Immunology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
| |
Collapse
|
4
|
Wang Y, Lei J, Zhang S, Wang X, Jin J, Liu Y, Gan M, Yuan Y, Sun L, Li X, Han T, Wang JB. 4EBP1 senses extracellular glucose deprivation and initiates cell death signaling in lung cancer. Cell Death Dis 2022; 13:1075. [PMID: 36575176 PMCID: PMC9794714 DOI: 10.1038/s41419-022-05466-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/28/2022]
Abstract
Nutrient-limiting conditions are common during cancer development. The coordination of cellular glucose levels and cell survival is a fundamental question in cell biology and has not been completely understood. 4EBP1 is known as a translational repressor to regulate cell proliferation and survival by controlling translation initiation, however, whether 4EBP1 could participate in tumor survival by other mechanism except for translational repression function, especially under glucose starvation conditions remains unknown. Here, we found that protein levels of 4EBP1 was up-regulated in the central region of the tumor which always suffered nutrient deprivation compared with the peripheral region. We further discovered that 4EBP1 was dephosphorylated by PTPMT1 under glucose starvation conditions, which prevented 4EBP1 from being targeted for ubiquitin-mediated proteasomal degradation by HERC5. After that, 4EBP1 translocated to cytoplasm and interacted with STAT3 by competing with JAK and ERK, leading to the inactivation of STAT3 in the cytoplasm, resulting in apoptosis under glucose withdrawal conditions. Moreover, 4EBP1 knockdown increased the tumor volume and weight in xenograft models by inhibiting apoptosis in the central region of tumor. These findings highlight a novel mechanism for 4EBP1 as a new cellular glucose sensor in regulating cancer cell death under glucose deprivation conditions, which was different from its classical function as a translational repressor.
Collapse
Affiliation(s)
- Yanan Wang
- grid.412604.50000 0004 1758 4073Jiangxi Institute of Respiratory Disease, The First Affiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China ,Jiangxi Hospital of China-Japan Friendship Hospital, Nanchang City, 330052 Jiangxi China ,Jiangxi Clinical Research Center for Respiratory Diseases, Nanchang City, 330006 Jiangxi China
| | - Jiapeng Lei
- School of Basic Medical Sciences, Nanchang Medical College, Nanchang City, 330006 Jiangxi China
| | - Song Zhang
- grid.412465.0Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, 310009 Zhejiang China
| | - Xiaomei Wang
- grid.415912.a0000 0004 4903 149XDepartment of Pharmacy, Liaocheng People’s Hospital, Liaocheng City, 252000 Shandong China
| | - Jiangbo Jin
- grid.260463.50000 0001 2182 8825Department of Thoracic Surgery, The First Affifiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China
| | - Yufeng Liu
- grid.260463.50000 0001 2182 8825School of Basic Medical Sciences, Nanchang University, Nanchang City, 330031 Jiangxi China
| | - Mingxi Gan
- grid.260463.50000 0001 2182 8825School of Basic Medical Sciences, Nanchang University, Nanchang City, 330031 Jiangxi China
| | - Yi Yuan
- grid.260463.50000 0001 2182 8825Huankui Academy, Nanchang University, Nanchang City, 330031 Jiangxi China
| | - Longhua Sun
- grid.412604.50000 0004 1758 4073Departments of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China
| | - Xiaolei Li
- grid.412604.50000 0004 1758 4073Jiangxi Institute of Respiratory Disease, The First Affiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China
| | - Tianyu Han
- grid.412604.50000 0004 1758 4073Jiangxi Institute of Respiratory Disease, The First Affiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China ,Jiangxi Hospital of China-Japan Friendship Hospital, Nanchang City, 330052 Jiangxi China ,Jiangxi Clinical Research Center for Respiratory Diseases, Nanchang City, 330006 Jiangxi China
| | - Jian-Bin Wang
- grid.260463.50000 0001 2182 8825Department of Thoracic Surgery, The First Affifiliated Hospital of Nanchang University, Nanchang City, 330006 Jiangxi China ,grid.260463.50000 0001 2182 8825School of Basic Medical Sciences, Nanchang University, Nanchang City, 330031 Jiangxi China
| |
Collapse
|
5
|
Ciclopirox drives growth arrest and autophagic cell death through STAT3 in gastric cancer cells. Cell Death Dis 2022; 13:1007. [PMID: 36443287 PMCID: PMC9705325 DOI: 10.1038/s41419-022-05456-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022]
Abstract
Ciclopirox (CPX), an antifungal drug, has recently been identified as a promising agent for cancer treatment. However, the effects and underlying mechanism of CPX as an antitumor agent of gastric cancer (GC) remain largely unknown. Here, we found that CPX dramatically suppresses GC xenograft growth in vitro via inhibiting proliferation and stimulating autophagic cell death rather than apoptosis. Moreover, CPX (20 mg/kg, intraperitoneally) substantially inhibits GC xenograft tumor growth in vivo. Mechanistically, CPX promotes growth arrest and autophagic cell death through suppressing the phosphorylation of signal transducers and activators of transcription 3 (STAT3) at tyrosine 705 (Tyr705) and serine 727 (Ser727) sites, respectively. Additionally, CPX induces STAT3 ubiquitination, which subsequently leads to a decrease in the p-STAT3 (Ser727) level. On the other hand, CPX represses the p-STAT3 (Tyr705) level via p-Src (Tyr416) inhibition. Collectively, our findings unmask a novel mechanism by which CPX regulates growth and autophagic cell death in GC cells via regulating the phosphorylation of STAT3 both at Tyr705 and Ser727 residues, and suggest that CPX may be a potential treatment for GC.
Collapse
|
6
|
Stenckova M, Nenutil R, Vojtesek B, Coates PJ. Stat3 Tyrosine 705 and Serine 727 Phosphorylation Associate With Clinicopathological Characteristics and Distinct Tumor Cell Phenotypes in Triple-Negative Breast Cancer. Pathol Oncol Res 2022; 28:1610592. [PMID: 36017196 PMCID: PMC9395589 DOI: 10.3389/pore.2022.1610592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022]
Abstract
Signal transducer and activator of transcription 3 (Stat3) is responsible for many aspects of normal development and contributes to the development and progression of cancer through regulating epithelial cell identity and cancer stem cells. In breast cancer, Stat3 is associated with triple-negative breast cancers (TNBC) and its function has been related to the activation of p63, itself a marker of basal-like TNBC and a master regulator of stem cell activities. Stat3 activation is controlled by dual phosphorylation at tyrosine 705 (pTyr705) and serine 727 (pSer727), although it is unclear whether these have equivalent effects, and whether they are related or independent events. To address these issues, we investigated Stat3 phosphorylation at the two sites by immunohistochemistry in 173 patients with TNBC. Stat3 phosphorylation was assessed by automated quantitative measurements of digitized scanned images and classified into four categories based on histoscore. The results were analyzed for associations with multiple markers of tumor phenotype, proliferation, BRCA status, and clinicopathological characteristics. We show that the levels of pTyr705- and pSer727-Stat3 were independent in 34% of tumors. High pTyr705-Stat3 levels were associated with the luminal differentiation markers ERβ/AR and MUC1, whereas tumors with high levels of pSer727-Stat3 were more likely to be positive for the basal marker CK5/6, but were independent of p63 and were EGFR negative. Combined high pSer727- and low Tyr705-Stat3 phosphorylation associated with basal-like cancer. Although high Stat3 phosphorylation levels were associated with less aggressive tumor characteristics, they did not associate with improved survival, indicating that Stat3 phosphorylation is an unfavorable indicator for tumors with an otherwise good prognosis according to clinicopathological characteristics. These findings also show that pTyr705-Stat3 and pSer727-Stat3 associate with specific breast tumor phenotypes, implying that they exert distinct functional activities in breast cancer.
Collapse
Affiliation(s)
- Michaela Stenckova
- Masaryk Memorial Cancer Institute, Research Center for Applied Molecular Oncology (RECAMO), Brno, Czechia
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czechia
- *Correspondence: Michaela Stenckova, ; Philip J. Coates,
| | - Rudolf Nenutil
- Masaryk Memorial Cancer Institute, Research Center for Applied Molecular Oncology (RECAMO), Brno, Czechia
| | - Borivoj Vojtesek
- Masaryk Memorial Cancer Institute, Research Center for Applied Molecular Oncology (RECAMO), Brno, Czechia
| | - Philip J. Coates
- Masaryk Memorial Cancer Institute, Research Center for Applied Molecular Oncology (RECAMO), Brno, Czechia
- *Correspondence: Michaela Stenckova, ; Philip J. Coates,
| |
Collapse
|
7
|
Bousoik E, Mahdipoor P, Alhazza A, Aliabadi HM. Combinational Silencing of Components Involved in JAK/STAT Signaling Pathway. Eur J Pharm Sci 2022; 175:106233. [DOI: 10.1016/j.ejps.2022.106233] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/23/2022] [Accepted: 06/05/2022] [Indexed: 01/08/2023]
|
8
|
Li S, Guo W, Wu H. The role of post-translational modifications in the regulation of MCL1. Cell Signal 2021; 81:109933. [PMID: 33508399 DOI: 10.1016/j.cellsig.2021.109933] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 12/25/2022]
Abstract
Apoptosis is an evolutionarily conserved form of programed cell death (PCD) that has a vital effect on early embryonic development, tissue homeostasis and clearance of damaged cells. Dysregulation of apoptosis can lead to many diseases, such as Alzheimer's disease, cancer, AIDS and heart disease. The anti-apoptotic protein MCL1, a member of the BCL2 family, plays important roles in these physiological and pathological processes. Its high expression is closely related to drug resistances in the treatment of tumor. This review summarizes the structure and function of MCL1, the types of post-translational modifications of MCL1 and their effects on the functions of MCL1, as well as the treatment strategies targeting MCL1 in cancer therapy. The research on the fine regulation of MCL1 will be favorable to the provision of a promising future for the design and screening of MCL1 inhibitors.
Collapse
Affiliation(s)
- Shujing Li
- School of Bioengineering & Province Key Laboratory of Protein Modification and Disease, Liaoning Province, Dalian University of Technology, China
| | - Wanping Guo
- School of Bioengineering & Province Key Laboratory of Protein Modification and Disease, Liaoning Province, Dalian University of Technology, China
| | - Huijian Wu
- School of Bioengineering & Province Key Laboratory of Protein Modification and Disease, Liaoning Province, Dalian University of Technology, China.
| |
Collapse
|
9
|
BCL2L10 Is Overexpressed in Melanoma Downstream of STAT3 and Promotes Cisplatin and ABT-737 Resistance. Cancers (Basel) 2020; 13:cancers13010078. [PMID: 33396645 PMCID: PMC7795116 DOI: 10.3390/cancers13010078] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary BCL2L10 is the sixth and less studied protein from the group of Bcl-2 anti-apoptotic proteins. These proteins are important therapeutic targets since they convey resistance to anticancer regimens. We describe here for the first time the role of BCL2L10 in melanoma. We found that BCL2L10 is abundantly and frequently expressed both in melanoma cell lines and tumor samples. This increased expression is due to the activity of the transcription factor STAT3 that positively regulate BCL2L10 transcription. We describe that Bcl2l10 is a pro-survival factor in melanoma, being able to protect cells from the cytotoxic effect of different drugs, including cisplatin, dacarbazine, and ABT-737. BCL2L10 also inhibited the cell death upon combination treatments of PLX-4032, a BRAF inhibitor, with ABT-737 or cisplatin. In summary, we determined that BCL2L10 is expressed in melanoma and contributes to cell survival. Hence, targeting BCL2L10 may enhance the clinical efficacy of other therapies for malignant melanoma. Abstract The anti-apoptotic proteins from the Bcl-2 family are important therapeutic targets since they convey resistance to anticancer regimens. Despite the suspected functional redundancy among the six proteins of this subfamily, both basic studies and therapeutic approaches have focused mainly on BCL2, Bcl-xL, and MCL1. The role of BCL2L10, another member of this group, has been poorly studied in cancer and never has been in melanoma. We describe here that BCL2L10 is abundantly and frequently expressed both in melanoma cell lines and tumor samples. We established that BCL2L10 expression is driven by STAT3-mediated transcription, and by using reporter assays, site-directed mutagenesis, and ChIP analysis, we identified the functional STAT3 responsive elements in the BCL2L10 promoter. BCL2L10 is a pro-survival factor in melanoma since its expression reduced the cytotoxic effects of cisplatin, dacarbazine, and ABT-737 (a BCL2, Bcl-xL, and Bcl-w inhibitor). Meanwhile, both genetic and pharmacological inhibition of BCL2L10 sensitized melanoma cells to cisplatin and ABT-737. Finally, BCL2L10 inhibited the cell death upon combination treatments of PLX-4032, a BRAF inhibitor, with ABT-737 or cisplatin. In summary, we determined that BCL2L10 is expressed in melanoma and contributes to cell survival. Hence, targeting BCL2L10 may enhance the clinical efficacy of other therapies for malignant melanoma.
Collapse
|
10
|
Lin Y, He Z, Ye J, Liu Z, She X, Gao X, Liang R. Progress in Understanding the IL-6/STAT3 Pathway in Colorectal Cancer. Onco Targets Ther 2020; 13:13023-13032. [PMID: 33376351 PMCID: PMC7762435 DOI: 10.2147/ott.s278013] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
As a pleiotropic cytokine, interleukin-6 (IL-6) not only regulates the cellular immune response, but it also promotes tumor development by activating multiple carcinogenic pathways. IL-6 expression is significantly elevated in colorectal cancer (CRC) and is closely related to CRC development and patient prognosis. In CRC, IL-6 activates signal transducers and activators of transduction-3 (STAT3) to promote tumor initiation and tumor growth. IL-6/STAT3 signalling has a profound effect on tumor-infiltrating immune cells in the tumor immune microenvironment in CRC. Additionally, IL-6/STAT3 pathway activates downstream target genes to protect tumor cells from apoptosis; drive tumor cell proliferation, cell cycle progression, invasion and metastasis; promote tumor angiogenesis; and stimulate drug resistance. Therefore, a thorough understanding of the many effects of the IL-6/STAT3 pathway in CRC is needed, which the present review examines.
Collapse
Affiliation(s)
- Yan Lin
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Ziqin He
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Jiazhou Ye
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Ziyu Liu
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Xiaomin She
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Xing Gao
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Rong Liang
- Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| |
Collapse
|
11
|
Targeting BCL-2 in B-cell malignancies and overcoming therapeutic resistance. Cell Death Dis 2020; 11:941. [PMID: 33139702 PMCID: PMC7608616 DOI: 10.1038/s41419-020-03144-y] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022]
Abstract
Defects in apoptosis can promote tumorigenesis and impair responses of malignant B cells to chemotherapeutics. Members of the B-cell leukemia/lymphoma-2 (BCL-2) family of proteins are key regulators of the intrinsic, mitochondrial apoptotic pathway. Overexpression of antiapoptotic BCL-2 family proteins is associated with treatment resistance and poor prognosis. Thus, inhibition of BCL-2 family proteins is a rational therapeutic option for malignancies that are dependent on antiapoptotic BCL-2 family proteins. Venetoclax (ABT-199, GDC-0199) is a highly selective BCL-2 inhibitor that represents the first approved agent of this class and is currently widely used in the treatment of chronic lymphocytic leukemia (CLL) as well as acute myeloid leukemia (AML). Despite impressive clinical activity, venetoclax monotherapy for a prolonged duration can lead to drug resistance or loss of dependence on the targeted protein. In this review, we provide an overview of the mechanism of action of BCL-2 inhibition and the role of this approach in the current treatment paradigm of B-cell malignancies. We summarize the drivers of de novo and acquired resistance to venetoclax that are closely associated with complex clonal shifts, interplay of expression and interactions of BCL-2 family members, transcriptional regulators, and metabolic modulators. We also examine how tumors initially resistant to venetoclax become responsive to it following prior therapies. Here, we summarize preclinical data providing a rationale for efficacious combination strategies of venetoclax to overcome therapeutic resistance by a targeted approach directed against alternative antiapoptotic BCL-2 family proteins (MCL-1, BCL-xL), compensatory prosurvival pathways, epigenetic modifiers, and dysregulated cellular metabolism/energetics for durable clinical remissions.
Collapse
|
12
|
Yao Y, Liu Q, Adrianto I, Wu X, Glassbrook J, Khalasawi N, Yin C, Yi Q, Dong Z, Geissmann F, Zhou L, Mi QS. Histone deacetylase 3 controls lung alveolar macrophage development and homeostasis. Nat Commun 2020; 11:3822. [PMID: 32732898 PMCID: PMC7393351 DOI: 10.1038/s41467-020-17630-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 07/03/2020] [Indexed: 12/21/2022] Open
Abstract
Alveolar macrophages (AMs) derived from embryonic precursors seed the lung before birth and self-maintain locally throughout adulthood, but are regenerated by bone marrow (BM) under stress conditions. However, the regulation of AM development and maintenance remains poorly understood. Here, we show that histone deacetylase 3 (HDAC3) is a key epigenetic factor required for AM embryonic development, postnatal homeostasis, maturation, and regeneration from BM. Loss of HDAC3 in early embryonic development affects AM development starting at E14.5, while loss of HDAC3 after birth affects AM homeostasis and maturation. Single-cell RNA sequencing analyses reveal four distinct AM sub-clusters and a dysregulated cluster-specific pathway in the HDAC3-deficient AMs. Moreover, HDAC3-deficient AMs exhibit severe mitochondrial oxidative dysfunction and deteriorative cell death. Mechanistically, HDAC3 directly binds to Pparg enhancers, and HDAC3 deficiency impairs Pparg expression and its signaling pathway. Our findings identify HDAC3 as a key epigenetic regulator of lung AM development and homeostasis. Alveolar macrophages are known to derive from embryonic precursors although the regulation of this process is poorly understood. Here the authors propose a key role for histone deacetylase 3 as an epigenetic regulator of lung alveolar macrophage development.
Collapse
Affiliation(s)
- Yi Yao
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Queping Liu
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA.,Department of Pathology, Xiangya Hospital of Central South University, Changsha, Hunan, 410008, China
| | - Indra Adrianto
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA.,Department of Public Health Sciences, Henry Ford Health System, Detroit, MI, 48202, USA.,Center for Bioinformatics, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Xiaojun Wu
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA
| | - James Glassbrook
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA.,Department of Biochemistry, Microbiology, and Immunology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA
| | - Namir Khalasawi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Congcong Yin
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Qijun Yi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA.,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Augusta University, Augusta, GA, 30912, USA
| | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Li Zhou
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA. .,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA. .,Department of Biochemistry, Microbiology, and Immunology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA. .,Department of Internal Medicine, Henry Ford Health System, Detroit, MI, 48202, USA.
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health System, Detroit, MI, 48202, USA. .,Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, 48202, USA. .,Department of Biochemistry, Microbiology, and Immunology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA. .,Department of Internal Medicine, Henry Ford Health System, Detroit, MI, 48202, USA.
| |
Collapse
|
13
|
Notch-1 Signaling Modulates Macrophage Polarization and Immune Defense against Mycobacterium avium paratuberculosis Infection in Inflammatory Diseases. Microorganisms 2020; 8:microorganisms8071006. [PMID: 32635645 PMCID: PMC7409363 DOI: 10.3390/microorganisms8071006] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 12/15/2022] Open
Abstract
Despite the extensive research on Notch signaling involvement in inflammation, its specific role in macrophage response in autoimmune disease and defense mechanisms against bacterial infection, such as Mycobacterium avium paratuberculosis (MAP), remains unknown. In this study, we investigated the molecular role of Notch-1 signaling in the macrophage response during MAP infection. In particular, we measured the in vitro effect of MAP on Notch-1 signaling and downstream influence on interleukin (IL)-6 and myeloid cell leukemia sequence-1 (MCL-1) and consequent cellular apoptosis, MAP viability, and macrophage polarization. Overall, the data show significant upregulation in Notch-1, IL-6, and MCL-1 in MAP-infected macrophages, parallel with a decrease in apoptosis and elevated pro-inflammatory response in these infected cells. On the contrary, blocking Notch signaling with γ-secretase inhibitor (DAPT) decreased MAP survival and burden, increased apoptosis, and diminished the pro-inflammatory response. In particular, the treatment of infected macrophages with DAPT shifted macrophage polarization toward M2 anti-inflammatory phenotypic response. The outcome of this study clearly demonstrates the critical role of Notch signaling in macrophage response during infection. We conclude that MAP infection in macrophages activates Notch-1 signaling and downstream influence on IL-6 which hijack MCL-1 dependent inhibition of apoptosis leading to its chronic persistence, and further inflammation. This study supports Notch-1 signaling as a therapeutic target to combat infection in autoimmune diseases such as Crohn’s disease and Rheumatoid Arthritis.
Collapse
|
14
|
Pan B, Gao J, Chen W, Liu C, Shang L, Xu M, Fu C, Zhu S, Niu M, Xu K. Selective inhibition of interleukin-1 receptor-associated kinase 1 ameliorates lipopolysaccharide-induced sepsis in mice. Int Immunopharmacol 2020; 85:106597. [PMID: 32422509 DOI: 10.1016/j.intimp.2020.106597] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/29/2020] [Accepted: 05/10/2020] [Indexed: 12/26/2022]
Abstract
Interleukin-1 receptor-associated kinases (IRAKs), particularly IRAK1 and IRAK4, are important in transducing signal from Toll-like receptor 4. We interrogated if a selective inhibition of IRAK1 could alleviate lipopolysaccharide (LPS)-induced sepsis. In this study, we tested the impact of a novel selective IRAK1 inhibitor Jh-X-119-01 on LPS-induced sepsis in mice. Survival at day 5 was 13.3% in control group where septic mice were treated by vehicle, while the values were 37.5% (p = 0.046, vs. control) and 56.3% (p = 0.003, vs. control) for 5 mg/kg and 10 mg/kg Jh-X-119-01-treated mice. Jh-X-119-01 alleviated lung injury and reduced production of TNFα and IFNγ in peritoneal macrophages. Jh-X-119-01 decreased phosphorylation of NF-κB and mRNA levels of IL-6 and TNFα in LPS-treated macrophages in vitro. Jh-X-119-01 selectively inhibited IRAK1 phosphorylation comparing with a non-selective IRAK1/4 inhibitor which simultaneously inhibited phosphorylation of IRAK1 and IRAK4. Both Jh-X-119-01 and IRAK1/4 inhibitor increased survival of septic mice, but Jh-X-119-01-treated mice had higher blood CD11b+ cell counts than IRAK1/4 inhibitor-treated ones [24 h: (1.18 ± 0.26) × 106/ml vs. (0.79 ± 0.20) × 106/ml, p = 0.001; 48 h: (1.00 ± 0.30) × 106/ml vs. (0.67 ± 0.23) × 106/ml, p = 0.042]. IRAK1/4 inhibitor induced more apoptosis of macrophages than Jh-X-119-01 did in vitro. IRAK1/4 inhibitor decreased protein levels of anti-apoptotic BCL-2 and MCL-1 in RAW 264.7 and THP-1 cells, an effect not seen in Jh-X-119-01-treated cells. In conclusion, Jh-X-119-01 selectively inhibited activation of IRAK1 and protected mice from LPS-induced sepsis. Jh-X-119-01 showed less toxicity on macrophages comparing with a non-selective IRAK1/4 inhibitor.
Collapse
Affiliation(s)
- Bin Pan
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
| | - Jun Gao
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China
| | - Wei Chen
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
| | - Cong Liu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China
| | - Longmei Shang
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China
| | - Mengdi Xu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
| | - Chunling Fu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
| | - Shengyun Zhu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
| | - Mingshan Niu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.
| | - Kailin Xu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China; Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China.
| |
Collapse
|
15
|
Chong SJF, Marchi S, Petroni G, Kroemer G, Galluzzi L, Pervaiz S. Noncanonical Cell Fate Regulation by Bcl-2 Proteins. Trends Cell Biol 2020; 30:537-555. [PMID: 32307222 DOI: 10.1016/j.tcb.2020.03.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/15/2020] [Accepted: 03/19/2020] [Indexed: 12/20/2022]
Abstract
Bcl-2 proteins are widely known as key controllers of mitochondrial outer membrane permeabilization, arguably the most important step of intrinsic apoptosis. Accumulating evidence indicate that most, if not all, members of the Bcl-2 protein family also mediate a number of apoptosis-unrelated functions. Intriguingly, many of these functions ultimately impinge on cell fate decisions via apoptosis-dependent or -independent mechanisms, delineating a complex network through which Bcl-2 family members regulate cell survival and death. Here, we critically discuss the mechanisms through which Bcl-2 proteins influence cell fate as they regulate autophagy, cellular senescence, inflammation, bioenergetic metabolism, Ca2+ fluxes, and redox homeostasis.
Collapse
Affiliation(s)
| | - Saverio Marchi
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy
| | - Giulia Petroni
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Guido Kroemer
- Equipe Labellisée par la Ligue Contre le Cancer, INSERM U1138, Centre de Recherche des Cordeliers, Paris, France; Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, Villejuif, France; Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-, HP, Paris, France; Suzhou Institute for Systems Medicine, Chinese Academy of Sciences, Suzhou, China; Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden; Université de Paris, Paris, France
| | - Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA; Université de Paris, Paris, France; Sandra and Edward Meyer Cancer Center, New York, NY, USA; Caryl and Israel Englander Institute for Precision Medicine, New York, NY, USA; Department of Dermatology, Yale School of Medicine, New Haven, CT, USA.
| | - Shazib Pervaiz
- Université de Paris, Paris, France; Department of Physiology, YLL School of Medicine and NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore; National University Cancer Institute, National University Health System, Singapore.
| |
Collapse
|
16
|
|
17
|
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.
Collapse
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
| |
Collapse
|
18
|
Bousoik E, Nabiee R, Amirrad F, Nichols A, Witt R, Mahdipoor P, Montazeri Aliabadi H. Heterogeneity and Plasticity of Human Breast Cancer Cells in Response to Molecularly-Targeted Drugs. Front Oncol 2019; 9:1070. [PMID: 31681603 PMCID: PMC6803545 DOI: 10.3389/fonc.2019.01070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/30/2019] [Indexed: 01/24/2023] Open
Abstract
Non-responsive subpopulation of tumor cells, and acquired resistance in initially responsive cells are major challenges for cancer therapy with molecularly-targeted drugs. While point mutations are considered the major contributing factor to acquired resistance, in this study we explored the role of heterogeneity and plasticity of selected human breast cancer cell lines (MDA-MB-231, MDA-MB-468, and AU565) in their initial and adjusted response, respectively, to ruxolitinib, everolimus, and erlotinib. After determination of lethal concentration for 50% cell death (LC50), cells were exposed to selected drugs using three different approaches: single exposure to 4 × LC50 and collection of surviving cells, multiple exposures to 1.5 × LC50 and monitoring the surviving population, and exposure to gradually increasing concentrations of selected drugs (range of concentrations equivalent to 10% of LC50 to 1.5 × LC50). Surviving cells were studied for adjustments in expression level of selected proteins using quantitative PCR and Western Blot. Our data indicated overexpression of a variety of proteins in resistant populations, which included cell membrane receptors EGFR and HER2, anti-apoptotic proteins Bcl-2 and BIRC8, and other proteins involved in cell signaling (e.g., Akt1, MAPK7, and RPS6KA5). Silencing the identified alternative proteins via siRNA resulted in significant drop in the LC50 of the selected molecularly-targeted drugs cells resistant to ruxolitinib (via targeting Akt), everolimus (via targeting EGFR, MAPK7, RPS6KA5, and HER2), and erlotinib (via silencing Bcl2 and BIRC8). Our data indicates that targeting well-selected alternative proteins could potentially sensitize the resistant cells to the effect of the molecularly-targeted treatment.
Collapse
Affiliation(s)
- Emira Bousoik
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Ramina Nabiee
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Farideh Amirrad
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Ashley Nichols
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Rebecca Witt
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Parvin Mahdipoor
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| | - Hamidreza Montazeri Aliabadi
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA, United States
| |
Collapse
|
19
|
Chong SJF, Lai JXH, Eu JQ, Bellot GL, Pervaiz S. Reactive Oxygen Species and Oncoprotein Signaling-A Dangerous Liaison. Antioxid Redox Signal 2018; 29:1553-1588. [PMID: 29186971 DOI: 10.1089/ars.2017.7441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
SIGNIFICANCE There is evidence to implicate reactive oxygen species (ROS) in tumorigenesis and its progression. This has been associated with the interplay between ROS and oncoproteins, resulting in enhanced cellular proliferation and survival. Recent Advances: To date, studies have investigated specific contributions of the crosstalk between ROS and signaling networks in cancer initiation and progression. These investigations have challenged the established dogma of ROS as agents of cell death by demonstrating a secondary function that fuels cell proliferation and survival. Studies have thus identified (onco)proteins (Bcl-2, STAT3/5, RAS, Rac1, and Myc) in manipulating ROS level as well as exploiting an altered redox environment to create a milieu conducive for cancer formation and progression. CRITICAL ISSUES Despite these advances, drug resistance and its association with an altered redox metabolism continue to pose a challenge at the mechanistic and clinical levels. Therefore, identifying specific signatures, altered protein expressions, and modifications as well as protein-protein interplay/function could not only enhance our understanding of the redox networks during cancer initiation and progression but will also provide novel targets for designing specific therapeutic strategies. FUTURE DIRECTIONS Not only a heightened realization is required to unravel various gene/protein networks associated with cancer formation and progression, particularly from the redox standpoint, but there is also a need for developing more sensitive tools for assessing cancer redox metabolism in clinical settings. This review attempts to summarize our current knowledge of the crosstalk between oncoproteins and ROS in promoting cancer cell survival and proliferation and treatment strategies employed against these oncoproteins. Antioxid. Redox Signal.
Collapse
Affiliation(s)
- Stephen Jun Fei Chong
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Jolin Xiao Hui Lai
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Jie Qing Eu
- 2 Cancer Science Institute , Singapore, Singapore
| | - Gregory Lucien Bellot
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,3 Department of Hand and Reconstructive Microsurgery, National University Health System , Singapore, Singapore
| | - Shazib Pervaiz
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,4 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,5 National University Cancer Institute, National University Health System , Singapore, Singapore .,6 School of Biomedical Sciences, Curtin University , Perth, Australia
| |
Collapse
|
20
|
Saraf RS, Datta A, Sima C, Hua J, Lopes R, Bittner M. An in-silico study examining the induction of apoptosis by Cryptotanshinone in metastatic melanoma cell lines. BMC Cancer 2018; 18:855. [PMID: 30157799 PMCID: PMC6116360 DOI: 10.1186/s12885-018-4756-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 08/16/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Metastatic melanoma is an aggressive form of skin cancer that evades various anti-cancer treatments including surgery, radio-,immuno- and chemo-therapy. TRAIL-induced apoptosis is a desirable method to treat melanoma since, unlike other treatments, it does not harm non-cancerous cells. The pro-inflammatory response to melanoma by nF κB and STAT3 pathways makes the cancer cells resist TRAIL-induced apoptosis. We show that due to to its dual action on DR5, a death receptor for TRAIL and on STAT3, Cryptotanshinone can be used to increase sensitivity to TRAIL. METHODS The development of chemoresistance and invasive properties in melanoma cells involves several biological pathways. The key components of these pathways are represented as a Boolean network with multiple inputs and multiple outputs. RESULTS The possible mutations in genes that can lead to cancer are captured by faults in the combinatorial circuit and the model is used to theoretically predict the effectiveness of Cryptotanshinone for inducing apoptosis in melanoma cell lines. This prediction is experimentally validated by showing that Cryptotanshinone can cause enhanced cell death in A375 melanoma cells. CONCLUSION The results presented in this paper facilitate a better understanding of melanoma drug resistance. Furthermore, this framework can be used to detect additional drug intervention points in the pathway that could amplify the action of Cryptotanshinone.
Collapse
Affiliation(s)
- Radhika S. Saraf
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, US
| | - Aniruddha Datta
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, US
| | - Chao Sima
- TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering (CBGSE), College Station, US
| | - Jianping Hua
- TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering (CBGSE), College Station, US
| | - Rosana Lopes
- TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering (CBGSE), College Station, US
| | - Michael Bittner
- TEES-AgriLife Center for Bioinformatics and Genomic Systems Engineering (CBGSE), College Station, US
- Translational Genomics Research Institute (TGen), Phoenix, US
| |
Collapse
|
21
|
Bousoik E, Montazeri Aliabadi H. "Do We Know Jack" About JAK? A Closer Look at JAK/STAT Signaling Pathway. Front Oncol 2018; 8:287. [PMID: 30109213 PMCID: PMC6079274 DOI: 10.3389/fonc.2018.00287] [Citation(s) in RCA: 237] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 07/09/2018] [Indexed: 12/14/2022] Open
Abstract
Janus tyrosine kinase (JAK) family of proteins have been identified as crucial proteins in signal transduction initiated by a wide range of membrane receptors. Among the proteins in this family JAK2 has been associated with important downstream proteins, including signal transducers and activators of transcription (STATs), which in turn regulate the expression of a variety of proteins involved in induction or prevention of apoptosis. Therefore, the JAK/STAT signaling axis plays a major role in the proliferation and survival of different cancer cells, and may even be involved in resistance mechanisms against molecularly targeted drugs. Despite extensive research focused on the protein structure and mechanisms of activation of JAKs, and signal transduction through these proteins, their importance in cancer initiation and progression seem to be underestimated. This manuscript is an attempt to highlight the role of JAK proteins in cancer biology, the most recent developments in targeting JAKs, and the central role they play in intracellular cross-talks with other signaling cascades.
Collapse
Affiliation(s)
- Emira Bousoik
- Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, School of Pharmacy, Chapman University, Irvine, CA, United States.,School of Pharmacy, Omar Al-Mukhtar University, Dèrna, Libya
| | - Hamidreza Montazeri Aliabadi
- Department of Biomedical and Pharmaceutical Sciences, Center for Targeted Drug Delivery, School of Pharmacy, Chapman University, Irvine, CA, United States
| |
Collapse
|
22
|
Pan J, Lee Y, Cheng G, Zielonka J, Zhang Q, Bajzikova M, Xiong D, Tsaih SW, Hardy M, Flister M, Olsen CM, Wang Y, Vang O, Neuzil J, Myers CR, Kalyanaraman B, You M. Mitochondria-Targeted Honokiol Confers a Striking Inhibitory Effect on Lung Cancer via Inhibiting Complex I Activity. iScience 2018; 3:192-207. [PMID: 30428319 PMCID: PMC6137433 DOI: 10.1016/j.isci.2018.04.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/13/2018] [Accepted: 04/16/2018] [Indexed: 12/09/2022] Open
Abstract
We synthesized a mitochondria-targeted honokiol (Mito-HNK) that facilitates its mitochondrial accumulation; this dramatically increases its potency and efficacy against highly metastatic lung cancer lines in vitro, and in orthotopic lung tumor xenografts and brain metastases in vivo. Mito-HNK is >100-fold more potent than HNK in inhibiting cell proliferation, inhibiting mitochondrial complex ?, stimulating reactive oxygen species generation, oxidizing mitochondrial peroxiredoxin-3, and suppressing the phosphorylation of mitoSTAT3. Within lung cancer brain metastases in mice, Mito-HNK induced the mediators of cell death and decreased the pathways that support invasion and proliferation. In contrast, in the non-malignant stroma, Mito-HNK suppressed pathways that support metastatic lesions, including those involved in inflammation and angiogenesis. Mito-HNK showed no toxicity and targets the metabolic vulnerabilities of primary and metastatic lung cancers. Its pronounced anti-invasive and anti-metastatic effects in the brain are particularly intriguing given the paucity of treatment options for such patients either alone or in combination with standard chemotherapeutics.
Collapse
Affiliation(s)
- Jing Pan
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Yongik Lee
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Gang Cheng
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Jacek Zielonka
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Qi Zhang
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | | | - Donghai Xiong
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Shirng-Wern Tsaih
- Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Micael Hardy
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Aix Marseille University, CNRS, ICR UMR 7273, 13013 Marseille, France
| | - Michael Flister
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Czech Academy of Sciences, Prague, Czech Republic
| | - Christopher M Olsen
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Neuroscience Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Yian Wang
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Ole Vang
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jiri Neuzil
- Czech Academy of Sciences, Prague, Czech Republic; Griffith University, Queensland, Australia
| | - Charles R Myers
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Balaraman Kalyanaraman
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Ming You
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA; Department of Pharmacology & Toxicology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.
| |
Collapse
|
23
|
Galoczova M, Coates P, Vojtesek B. STAT3, stem cells, cancer stem cells and p63. Cell Mol Biol Lett 2018; 23:12. [PMID: 29588647 PMCID: PMC5863838 DOI: 10.1186/s11658-018-0078-0] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/07/2018] [Indexed: 12/15/2022] Open
Abstract
Signal Transducer and Activator of Transcription 3 (STAT3) is a transcription factor with many important functions in the biology of normal and transformed cells. Its regulation is highly complex as it is involved in signaling pathways in many different cell types and under a wide variety of conditions. Besides other functions, STAT3 is an important regulator of normal stem cells and cancer stem cells. p63 which is a member of the p53 protein family is also involved in these functions and is both physically and functionally connected with STAT3. This review summarizes STAT3 function and regulation, its role in stem cell and cancer stem cell properties and highlights recent reports about its relationship to p63.
Collapse
Affiliation(s)
- Michaela Galoczova
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53 Brno, Czech Republic
| | - Philip Coates
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53 Brno, Czech Republic
| | - Borivoj Vojtesek
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53 Brno, Czech Republic
| |
Collapse
|
24
|
Hussain S, Kodavanti PP, Marshburg JD, Janoshazi A, Marinakos SM, George M, Rice A, Wiesner MR, Garantziotis S. Decreased Uptake and Enhanced Mitochondrial Protection Underlie Reduced Toxicity of Nanoceria in Human Monocyte-Derived Macrophages. J Biomed Nanotechnol 2018; 12:2139-50. [PMID: 29368911 DOI: 10.1166/jbn.2016.2320] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cerium dioxide nanoparticles (nanoceria), currently used as catalysts including additives to diesel fuel, also present potential as a novel therapeutic agent for disorders involving oxidative stress. However, little is known about the effects of nanoceria on primary human cells involved in the innate immune response. Here, we evaluate nanoceria effects on monocyte derived macrophages (MDMs) from healthy human subjects. Peripheral blood monocytes were isolated from healthy human volunteers. MDMs were obtained by maturing monocytes over a five-day period. MDMs were exposed to well-characterized nanoceria suspensions (0, 5, 10, 20 μg/mL) for 24 or 48 hours. We evaluated particle uptake, ultrastructural changes, cytotoxicity, and mitochondrial damage in MDMs through transmission electron microscopy (TEM), confocal imaging, flow cytometry, spectrometry, western blots, and immunofluorescence techniques. The role that intracellular concentration of nanoceria plays in the toxicity of MDMs was evaluated by 3D image analysis and compared to monocytes as a nanoceria sensitive cell model. Nanoceria failed to induce cytotoxicity in MDMs at the tested doses. Nanoceria-exposed MDMs showed no mitochondrial damage and displayed significant accumulation of anti-apoptotic proteins (Mcl-1 and Bcl-2) during the maturation process. TEM and confocal analyses revealed efficient uptake of nanoceria by MDMs, however 3D image analyses revealed lower nanoceria accumulation per unit cell volume in MDMs compared to monocytes. Taken together, our results suggest that mitochondrial protection and reduced volume-corrected intracellular nanoparticle concentration account for the lower sensitivity of human MDMs to nanoceria.
Collapse
|
25
|
Young AI, Timpson P, Gallego-Ortega D, Ormandy CJ, Oakes SR. Myeloid cell leukemia 1 (MCL-1), an unexpected modulator of protein kinase signaling during invasion. Cell Adh Migr 2017; 12:513-523. [PMID: 29166822 PMCID: PMC6363037 DOI: 10.1080/19336918.2017.1393591] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Myeloid cell leukemia-1 (MCL-1), closely related to B-cell lymphoma 2 (BCL-2), has a well-established role in cell survival and has emerged as an important target for cancer therapeutics. We have demonstrated that inhibiting MCL-1 is efficacious in suppressing tumour progression in pre-clinical models of breast cancer and revealed that in addition to its role in cell survival, MCL-1 modulated cellular invasion. Utilizing a MCL-1-specific genetic antagonist, we found two possible mechanisms; firstly MCL-1 directly binds to and alters the phosphorylation of the cytoskeletal remodeling protein, Cofilin, a protein important for cytoskeletal remodeling during invasion, and secondly MCL-1 modulates the levels SRC family kinases (SFKs) and their targets. These data provide evidence that MCL-1 activities are not limited to endpoints of extracellular and intracellular signaling culminating in cell survival as previously thought, but can directly modulate the output of SRC family kinases signaling during cellular invasion. Here we review the pleotropic roles of MCL-1 and discuss the implications of this newly discovered effect on protein kinase signaling for the development of cancer therapeutics.
Collapse
Affiliation(s)
- Adelaide Ij Young
- a Cancer Research Division , Garvan Institute of Medical Research and the Kinghorn Cancer Centre , 384 Victoria Street, Darlinghurst , NSW , Australia
| | - Paul Timpson
- a Cancer Research Division , Garvan Institute of Medical Research and the Kinghorn Cancer Centre , 384 Victoria Street, Darlinghurst , NSW , Australia.,b St. Vincent's Clinical School, UNSW Medicine , Victoria Street, Darlinghurst , NSW , Australia
| | - David Gallego-Ortega
- a Cancer Research Division , Garvan Institute of Medical Research and the Kinghorn Cancer Centre , 384 Victoria Street, Darlinghurst , NSW , Australia.,b St. Vincent's Clinical School, UNSW Medicine , Victoria Street, Darlinghurst , NSW , Australia
| | - Christopher J Ormandy
- a Cancer Research Division , Garvan Institute of Medical Research and the Kinghorn Cancer Centre , 384 Victoria Street, Darlinghurst , NSW , Australia.,b St. Vincent's Clinical School, UNSW Medicine , Victoria Street, Darlinghurst , NSW , Australia
| | - Samantha R Oakes
- a Cancer Research Division , Garvan Institute of Medical Research and the Kinghorn Cancer Centre , 384 Victoria Street, Darlinghurst , NSW , Australia.,b St. Vincent's Clinical School, UNSW Medicine , Victoria Street, Darlinghurst , NSW , Australia
| |
Collapse
|
26
|
STAT3 mediates C6-ceramide-induced cell death in chronic lymphocytic leukemia. Signal Transduct Target Ther 2017; 2:17051. [PMID: 29263930 PMCID: PMC5661641 DOI: 10.1038/sigtrans.2017.51] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 06/09/2017] [Accepted: 08/16/2017] [Indexed: 12/24/2022] Open
Abstract
The pathogenesis of chronic lymphocytic leukemia (CLL) is poorly understood and it remains incurable with current therapies. We have previously shown that nanoliposomal C6-ceramide (CNL) is an effective therapy in an in vivo murine model of CLL. However, the key signaling pathways mediating CNL-induced cell death in CLL remains unknown. We hypothesized that CNL targets STAT3, a critical regulator of hematopoietic biology. We observed that CNL treatment reduced phosphorylated STAT3 at both Y705 and S727 residues in CLL cell lines and patient cells. This, in turn, reduced STAT3 transcriptional activity and expression of critical STAT3-dependent survival factors like Mcl-1 and survivin. The effect of CNL on STAT3 was further confirmed ex vivo as shown by reduced STAT3 phosphorylation in xenograft tumors obtained from mice treated with CNL. CNL suppressed STAT3 phosphorylation at Y705 and S727 through reduction in BTK activity and MEK1/2 kinase/PKC activities, respectively. Moreover, a synergistic reduction in CLL cell viability was observed on co-treatment with CNL and the BTK inhibitor, ibrutinib. Expression of an oncogenic form of STAT3 conferred partial resistance to CNL, providing confirmation that STAT3 mediates CNL-induced cell death. Taken together, these findings provide the first body of evidence demonstrating ceramide regulation of STAT3 phosphorylation. These results are also the first to demonstrate an effect of ceramide on BTK, a critical kinase mediating the B-cell receptor signaling in CLL cells and suggest a novel and synergistic combination of CNL and BTK inhibitors for CLL treatment.
Collapse
|
27
|
Hayashi H, Naoi S, Togawa T, Hirose Y, Kondou H, Hasegawa Y, Abukawa D, Sasaki M, Muroya K, Watanabe S, Nakano S, Minowa K, Inui A, Fukuda A, Kasahara M, Nagasaka H, Bessho K, Suzuki M, Kusuhara H. Assessment of ATP8B1 Deficiency in Pediatric Patients With Cholestasis Using Peripheral Blood Monocyte-Derived Macrophages. EBioMedicine 2017; 27:187-199. [PMID: 29104077 PMCID: PMC5828058 DOI: 10.1016/j.ebiom.2017.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/30/2017] [Accepted: 10/05/2017] [Indexed: 12/12/2022] Open
Abstract
Progressive familial intrahepatic cholestasis type 1 (PFIC1), a rare inherited recessive disease resulting from a genetic deficiency in ATP8B1, progresses to liver failure. Because of the difficulty of discriminating PFIC1 from other subtypes of PFIC based on its clinical and histological features and genome sequencing, an alternative method for diagnosing PFIC1 is desirable. Herein, we analyzed human peripheral blood monocyte-derived macrophages (HMDM) and found predominant expression of ATP8B1 in interleukin-10 (IL-10)-induced M2c, a subset of alternatively activated macrophages. SiRNA-mediated depletion of ATP8B1 in IL-10-treated HMDM markedly suppressed the expression of M2c-related surface markers and increased the side scatter (SSC) of M2c, likely via impairment of the IL-10/STAT3 signal transduction pathway. These phenotypic features were confirmed in IL-10-treated HMDM from four PFIC1 patients with disease-causing mutations in both alleles, but not in those from four patients with other subtypes of PFIC. This method identified three PFIC1 patients in a group of PFIC patients undiagnosed by genome sequencing, an identical diagnostic outcome to that achieved by analysis of liver specimens and in vitro mutagenesis studies. In conclusion, ATP8B1 deficiency caused incomplete polarization of HMDM into M2c. Phenotypic analysis of M2c helps to identify PFIC1 patients with no apparent disease-causing mutations in ATP8B1. ATP8B1, a causal gene of PFIC1, was expressed in IL-10-induced M2c, a subset of alternatively activated macrophages. ATP8B1 deficiency caused incomplete polarization of HMDM into M2c, likely via impairment of IL-10/STAT3 signaling. Phenotypic analysis of M2c helps to discriminate PFIC1 from other pediatric liver diseases undiagnosed by genomic analysis.
PFIC1, a rare inherited recessive disease resulting from a genetic deficiency in ATP8B1, progresses to liver failure. PFIC1 shares many clinical and histological features with other subtypes of PFIC, but differs in its therapeutic options. Because genome sequencing in patients with a clinical diagnosis of PFIC cannot always identify disease-causing mutations, an alternative method for diagnosing PFIC1 is desirable. We identified expression of ATP8B1 in IL-10-induced M2c, a subset of macrophages, and demonstrated its contribution to normal phenotypic expression of M2c. The phenotypic analysis of M2c helps to discriminate PFIC1 from other pediatric liver diseases undiagnosed by genomic analysis.
Collapse
Affiliation(s)
- Hisamitsu Hayashi
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
| | - Sotaro Naoi
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Takao Togawa
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yu Hirose
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroki Kondou
- Department of Pediatrics, Nara Hospital, Kinki University Faculty of Medicine, Nara, Japan
| | - Yasuhiro Hasegawa
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Daiki Abukawa
- Department of General Pediatrics, Miyagi Children's Hospital, Miyagi, Japan
| | - Mika Sasaki
- Department of Pediatrics, School of Medicine, Iwate Medical University, Iwate, Japan
| | - Koji Muroya
- Department of Endocrinology and Metabolism, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Satoshi Watanabe
- Department of Pediatrics, Nagasaki University Hospital, Nagasaki, Japan
| | - Satoshi Nakano
- Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan
| | - Kei Minowa
- Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan
| | - Ayano Inui
- Department of Pediatric Hepatology and Gastroenterology, Eastern Yokohama Hospital, Kanagawa, Japan
| | - Akinari Fukuda
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | | | - Kazuhiko Bessho
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mitsuyoshi Suzuki
- Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroyuki Kusuhara
- Laboratory of Molecular Pharmacokinetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
28
|
Gao G, Fan H, Zhang X, Zhang F, Wu H, Qi F, Zhao L, Li Y. Neuroprotective effect of G14-humanin on global cerebral ischemia/reperfusion by activation of SOCS3 – STAT3 – MCL–1 signal transduction pathway in rats. Neurol Res 2017; 39:895-903. [PMID: 28720038 DOI: 10.1080/01616412.2017.1352187] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Guangsheng Gao
- Intensive Care Unit, Jinan Central Hospital Affiliated to Shandong University, Jinan, P.R. China
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Huaihai Fan
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Xiaoying Zhang
- Department of Neonatology, Taian City Central Hospital, Taian, P.R. China
| | - Fusen Zhang
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Haiyan Wu
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Feng Qi
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Lei Zhao
- Intensive Care Unit, Taian City Central Hospital, Taian, P.R. China
| | - Yun Li
- Intensive Care Unit, Jinan Central Hospital Affiliated to Shandong University, Jinan, P.R. China
| |
Collapse
|
29
|
STAT3 Expression in Host Myeloid Cells Controls Graft-versus-Host Disease Severity. Biol Blood Marrow Transplant 2017; 23:1622-1630. [PMID: 28694183 DOI: 10.1016/j.bbmt.2017.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 06/27/2017] [Indexed: 02/04/2023]
Abstract
Professional antigen-presenting cells (APCs) are important modulators of acute graft-versus-host disease (GVHD). Although dendritic cells (DCs) are the most potent APC subset, other myeloid cells, especially macrophages (MFs) and neutrophils, recently have been shown to play a role in the severity of GVHD. The critical molecular mechanisms that determine the functions of myeloid cells in GVHD are unclear, however. Signal transducer and activator of transcription 3 (STAT3) is a master transcription factor that plays a crucial role in regulating immunity, but its role in MF biology and in acute GVHD remains unknown. To determine the impact of myeloid cell-specific expression of STAT3 on the severity of acute GVHD, we used myeloid cell-specific STAT3-deficient LysM-Cre/STAT3fl/- animals as recipients and donors in well-characterized experimental models of acute GVHD. We found that reduced expression of STAT3 in myeloid cells from the hosts, but not the donors, increased inflammation, increased donor T cell activation, and exacerbated GVHD. Our data demonstrate that STAT3 in host myeloid cells, such as MFs, dampens acute GVHD.
Collapse
|
30
|
Malik A, Pal R, Gupta SK. Interdependence of JAK-STAT and MAPK signaling pathways during EGF-mediated HTR-8/SVneo cell invasion. PLoS One 2017; 12:e0178269. [PMID: 28542650 PMCID: PMC5444796 DOI: 10.1371/journal.pone.0178269] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/10/2017] [Indexed: 12/03/2022] Open
Abstract
Invasion of trophoblast cells is spatio-temporally regulated by various cytokines and growth factors. In pregnancy, complications like preeclampsia, shallow invasion of trophoblast cells and low amounts of epidermal growth factor (EGF) have been reported. In the present study, regulatory mechanisms associated with EGF-mediated invasion in HTR-8/SVneo trophoblastic cells have been delineated. Treatment of HTR-8/SVneo cells with EGF (10 ng/ml) led to eight fold increase (p < 0.05) in invasion. Increased invasion of HTR-8/SVneo cells by EGF was associated with an increase in phosphorylation of ERK½. In addition, significant phosphorylation of STAT1 (ser 727) and STAT3 (both tyr 705 and ser 727 residues) was also observed, accompanied by a decrease in total STAT1. Inhibition of ERK½ phosphorylation by U0126 (10 μM) led to a significant decrease in EGF-mediated invasion with simultaneous decrease in the phosphorylated forms of STAT3 and STAT1. Decrease in total STAT1 was also reversed on inhibition of ERK½. Interestingly, inhibition of STAT3 by siRNA led to a significant decrease in EGF-mediated invasion of HTR-8/SVneo cells and phosphorylation of STAT1, but it did not have any effect on the activation of ERK½. On the other hand, inhibition of STAT1 by siRNA, also led to a significant decrease in the EGF-mediated invasion of HTR-8/SVneo cells, showed concomitant decrease in ERK½ phosphorylation and STAT3 phosphorylation at ser 727 residue. These results suggest cross-communication between ERK½ and JAK-STAT pathways during EGF-mediated increase in invasion of trophoblast cells; phosphorylation at ser 727 residue of both STAT3 and STAT1 appears to be critical.
Collapse
Affiliation(s)
- Ankita Malik
- Reproductive Cell Biology Laboratory, National Institute of Immunology, New Delhi, Delhi, India
| | - Rahul Pal
- Immunoendocrinology Laboratory, National Institute of Immunology, New Delhi, Delhi, India
| | - Satish Kumar Gupta
- Reproductive Cell Biology Laboratory, National Institute of Immunology, New Delhi, Delhi, India
- * E-mail:
| |
Collapse
|
31
|
Queisser N, Schupp N, Schwarz E, Hartmann C, Mackenzie GG, Oteiza PI. Aldosterone activates the oncogenic signals ERK1/2 and STAT3 via redox‐regulated mechanisms. Mol Carcinog 2017; 56:1868-1883. [DOI: 10.1002/mc.22643] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 02/10/2017] [Accepted: 03/03/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Nina Queisser
- Institute of Toxicology, Medical FacultyUniversity of DüsseldorfDüsseldorfGermany
- Department of NutritionUniversity of CaliforniaDavisCalifornia
| | - Nicole Schupp
- Institute of Toxicology, Medical FacultyUniversity of DüsseldorfDüsseldorfGermany
| | - Eva Schwarz
- Institute of Toxicology, Medical FacultyUniversity of DüsseldorfDüsseldorfGermany
| | - Christina Hartmann
- Institute of Toxicology, Medical FacultyUniversity of DüsseldorfDüsseldorfGermany
| | | | - Patricia I. Oteiza
- Department of NutritionUniversity of CaliforniaDavisCalifornia
- Department of Environmental ToxicologyUniversity of CaliforniaDavisCalifornia
| |
Collapse
|
32
|
Song Z, Xiong B, Zheng H, Manyande A, Guan X, Cao F, Ren L, Zhou Y, Ye D, Tian Y. STAT1 as a downstream mediator of ERK signaling contributes to bone cancer pain by regulating MHC II expression in spinal microglia. Brain Behav Immun 2017; 60:161-173. [PMID: 27742579 DOI: 10.1016/j.bbi.2016.10.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/08/2016] [Accepted: 10/10/2016] [Indexed: 01/05/2023] Open
Abstract
Major histocompatibility class II (MHC II)-specific activation of CD4+ T helper cells generates specific and persistent adaptive immunity against tumors. Emerging evidence demonstrates that MHC II is also involved in basic pain perception; however, little is known regarding its role in the development of cancer-induced bone pain (CIBP). In this study, we demonstrate that MHC II expression was markedly induced on the spinal microglia of CIBP rats in response to STAT1 phosphorylation. Mechanical allodynia was ameliorated by either pharmacological or genetic inhibition of MHC II upregulation, which was also attenuated by the inhibition of pSTAT1 and pERK but was deteriorated by intrathecal injection of IFNγ. Furthermore, inhibition of ERK signaling decreased the phosphorylation of STAT1, as well as the production of MHC II in vivo and in vitro. These findings suggest that STAT1 contributes to bone cancer pain as a downstream mediator of ERK signaling by regulating MHC II expression in spinal microglia.
Collapse
Affiliation(s)
- Zhenpeng Song
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Pain Medicine, Binzhou Medical University Hospital, Binzhou 256600, China
| | - Bingrui Xiong
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hua Zheng
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Anne Manyande
- School of Human and Social Sciences, University of West London, Middlesex TW8 9GA, UK
| | - Xuehai Guan
- Department of Anesthesiology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - Fei Cao
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lifang Ren
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yaqun Zhou
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dawei Ye
- Cancer Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Yuke Tian
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| |
Collapse
|
33
|
Zhang Z, Mao H, Du X, Zhu J, Xu Y, Wang S, Xu X, Ji P, Yu Y, Cao B, Han K, Hou T, Xu Z, Kong Y, Jiang G, Tang X, Qiao C, Mao X. A novel small molecule agent displays potent anti-myeloma activity by inhibiting the JAK2-STAT3 signaling pathway. Oncotarget 2017; 7:9296-308. [PMID: 26814430 PMCID: PMC4891041 DOI: 10.18632/oncotarget.6974] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 01/17/2016] [Indexed: 01/04/2023] Open
Abstract
The oncogenic STAT3 signaling pathway is emerging as a promising target for the treatment of multiple myeloma (MM). In the present study, we identified a novel STAT3 inhibitor SC99 in a target-based high throughput screen. SC99 inhibited JAK2-STAT3 activation but had no effects on other transcription factors such as NF-κB, and kinases such as AKT, ERK, and c-Src that are in association with STAT3 signaling pathway. Furthermore, SC99 downregulated the expression of STAT3-modulated genes, including Bcl-2, Bcl-xL, VEGF, cyclin D2, and E2F-1. By inhibiting the STAT3 signaling, SC99 induced MM cell apoptosis which could be partly abolished by the ectopic expression of STAT3. Furthermore, SC99 displayed potent anti-MM activity in two independent MM xenograft models in nude mice. Oral administration of SC99 led to marked decrease of tumor growth within 10 days at a daily dosage of 30 mg/kg, but did not raise toxic effects. Taken together, this study identified a novel oral JAK2/STAT3 inhibitor that could be developed as an anti-myeloma agent.
Collapse
Affiliation(s)
- Zubin Zhang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Hongwu Mao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Xiaolin Du
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Jingyu Zhu
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, China
| | - Yujia Xu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Siyu Wang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Xin Xu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Peng Ji
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Yang Yu
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Biyin Cao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Kunkun Han
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Tingjun Hou
- College of Pharmaceutical Sciences, Zhejiang University, Zhejiang, China
| | - Zhuan Xu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Kong
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Gaofeng Jiang
- School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, China
| | - Xiaowen Tang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chunhua Qiao
- Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Xinliang Mao
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| |
Collapse
|
34
|
Shabestari RM, Safa M, Alikarami F, Banan M, Kazemi A. CREB knockdown inhibits growth and induces apoptosis in human pre-B acute lymphoblastic leukemia cells through inhibition of prosurvival signals. Biomed Pharmacother 2017; 87:274-279. [PMID: 28063408 DOI: 10.1016/j.biopha.2016.12.070] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/08/2016] [Accepted: 12/19/2016] [Indexed: 02/02/2023] Open
Abstract
A majority of acute lymphoblastic leukemia patients overexpress CREB in the bone marrow. However, the functional significance of this up-regulation and the detailed molecular mechanism behind the regulatory effect of CREB on the growth of B-cell precursor acute lymphoblastic leukemia (BCP-ALL) cells has not been elucidated. We demonstrated here that CREB knockdown induced apoptosis and impaired growth of BCP-ALL NALM-6 cells which was associated with caspase activation. The gene expression levels of prosurvival signals Bcl-2, Mcl-1, Bcl-xL, survivin and XIAP were down-regulated upon CREB suppression. These findings indicate a critical role for CREB in proliferation, survival, and apoptosis of BCP-ALL cells. The data also suggest that CREB could possibly serve as potential therapeutic target in BCP-ALL.
Collapse
Affiliation(s)
- Rima Manafi Shabestari
- Department of Hematology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Safa
- Cellular and Molecular Research Center, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran; Department of Hematology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Fatemeh Alikarami
- Department of Hematology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Banan
- Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Ahmad Kazemi
- Department of Hematology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
35
|
Cui J, Placzek WJ. PTBP1 modulation of MCL1 expression regulates cellular apoptosis induced by antitubulin chemotherapeutics. Cell Death Differ 2016; 23:1681-90. [PMID: 27367564 DOI: 10.1038/cdd.2016.60] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 04/30/2016] [Accepted: 05/30/2016] [Indexed: 01/01/2023] Open
Abstract
Myeloid cell leukemia sequence 1 (MCL1), an anti-apoptotic BCL2 family protein, is a key regulator of intrinsic apoptosis. Normal cells require strict control over MCL1 expression with aberrant MCL1 expression linked to the emergence of various diseases and chemoresistance. Previous studies have detailed how MCL1 expression is regulated by multiple mechanisms both transcriptionally and translationally. However, characterization of the post-transcriptional regulators of MCL1 mRNA is limited. Polypyrimidine tract binding protein 1 (PTBP1) is a known regulator of post-transcriptional gene expression that can control mRNA splicing, translation, stability and localization. Here we demonstrate that PTBP1 binds to MCL1 mRNA and that knockdown of PTBP1 upregulates MCL1 expression in cancer cells by stabilizing MCL1 mRNA and increasing MCL1 mRNA accumulation in cytoplasm. Further, we show that depletion of PTBP1 protects cancer cells from antitubulin agent-induced apoptosis in a MCL1-dependent manner. Taken together, our findings suggest that PTBP1 is a novel regulator of MCL1 mRNA by which it controls apoptotic response to antitubulin chemotherapeutics.
Collapse
Affiliation(s)
- J Cui
- Department of Biochemistry and Molecular Genetics, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - W J Placzek
- Department of Biochemistry and Molecular Genetics, The University of Alabama at Birmingham, Birmingham, AL, USA
| |
Collapse
|
36
|
Wang D, Wang H, Fu S, Cheng X, Yang F, Zhang Q, Li Y, Xue Z, Zhang L, Huang W, Yang L, Na D, Da Y, Kong Y, Zhang R. Parthenolide ameliorates Concanavalin A-induced acute hepatitis in mice and modulates the macrophages to an anti-inflammatory state. Int Immunopharmacol 2016; 38:132-8. [PMID: 27270078 DOI: 10.1016/j.intimp.2016.05.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/23/2022]
Abstract
Parthenolide, the principal sesquiterpene lactone present in medicinal plants such as feverfew, has anti-microbial, anti-inflammatory and anticancer activities. In the present study, we investigated the protective role of parthenolide against acute hepatitis in mice. Mice acute hepatitis were induced by Concanavalin A and treated by parthenolide in vivo. Results shown that parthenolide remarkably reduced the congestion and necroinflammation of the mice livers with Concanavalin A-induced acute hepatitis. Meanwhile, parthenolide treatment recover the liver function which indicated by decreased the serum alanine transaminase and alkaline phosphatase activities and promoted the expression of Ki67 in the livers of these mice. In addition, parthenolide administration suppressed the Concanavalin A-induced immune reaction, as indicated by the number of F4/80, CD49b and CD4 cells present in the liver. Furthermore, parthenolide also significantly reduced the expression of pro-inflammatory cytokines such as IFN-γ, TNF-α, IL-17A, IL-1β and IL-6 in lipopolysaccharide (LPS)-stimulated RAW264.7 cells in vitro. Moreover, parthenolide exposure decreased the phosphorylation of STAT3 and p38, and promoted the phosphorylation of p53 in RAW264.7 cells in vitro. In conclusion, parthenolide represents a drug candidate to protect the liver against Concanavalin A-induced acute hepatitis. The possible molecular mechanism involves the anti-inflammatory effects of parthenolide may by suppressing the STAT3/p38 signals and enhanced the p53 signals.
Collapse
Affiliation(s)
- Dan Wang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China, Tianjin Medical University, Tianjin, China; Department of Blood Transfusion, Tianjin Medical University General Hospital, Tianjin, China
| | - Huafeng Wang
- School of Life Science, Shanxi Normal University, Linfen, China
| | - Shuyu Fu
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Xixi Cheng
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Fengrui Yang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Qi Zhang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Yan Li
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Zhenyi Xue
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Lijuan Zhang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Wenjing Huang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China; Union Stem Cells and Gene Engineering Co., Tianjin, China
| | - Luhong Yang
- School of Life Science, Shanxi Normal University, Linfen, China
| | - Dongchen Na
- School of Life Science, Shanxi Normal University, Linfen, China
| | - Yurong Da
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China
| | - Ying Kong
- Department of Biochemistry and Molecular Biology, Liaoning Key lab of Glycobiology and Glycoengn, Dalian Medical University, Dalian 116044, China.
| | - Rongxin Zhang
- Laboratory of Immunology and Inflammation, Department of Immunology and Research Center of Basic Medical Sciences, Ministry of Education of China, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China, Tianjin Medical University, Tianjin, China; Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China.
| |
Collapse
|
37
|
Fukumoto T, Iwasaki T, Okada T, Hashimoto T, Moon Y, Sakaguchi M, Fukami Y, Nishigori C, Oka M. High expression of Mcl-1L via the MEK-ERK-phospho-STAT3 (Ser727) pathway protects melanocytes and melanoma from UVB-induced apoptosis. Genes Cells 2016; 21:185-99. [DOI: 10.1111/gtc.12330] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 11/26/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Takeshi Fukumoto
- Division of Dermatology; Department of Internal Related; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-ku Kobe 650-0017 Japan
| | - Tetsushi Iwasaki
- Research Center for Environmental Genomics; Organization of Advanced Science and Technology; Kobe University; 1-1 Rokkodai Nada Kobe 657-8501 Japan
- Department of Biology; Kobe University Graduate School of Science; 1-1 Rokkodai Nada Kobe 657-8501 Japan
| | - Taro Okada
- Division of Biochemistry; Department of Molecular and Cellular Biology; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-ku Kobe 650-0017 Japan
| | - Takanori Hashimoto
- Department of Biology; Kobe University Graduate School of Science; 1-1 Rokkodai Nada Kobe 657-8501 Japan
| | - Youbin Moon
- Department of Biology; Kobe University Graduate School of Science; 1-1 Rokkodai Nada Kobe 657-8501 Japan
| | - Masanobu Sakaguchi
- Division of Dermatology; Department of Internal Related; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-ku Kobe 650-0017 Japan
| | - Yasuo Fukami
- Research Center for Environmental Genomics; Organization of Advanced Science and Technology; Kobe University; 1-1 Rokkodai Nada Kobe 657-8501 Japan
- Department of Biology; Kobe University Graduate School of Science; 1-1 Rokkodai Nada Kobe 657-8501 Japan
| | - Chikako Nishigori
- Division of Dermatology; Department of Internal Related; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-ku Kobe 650-0017 Japan
| | - Masahiro Oka
- Division of Dermatology; Department of Internal Related; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-ku Kobe 650-0017 Japan
| |
Collapse
|
38
|
Cheon YH, Kim JY, Baek JM, Ahn SJ, So HS, Oh J. Niclosamide suppresses RANKL-induced osteoclastogenesis and prevents LPS-induced bone loss. Biochem Biophys Res Commun 2016; 470:343-349. [PMID: 26792726 DOI: 10.1016/j.bbrc.2016.01.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 01/08/2016] [Indexed: 10/22/2022]
Abstract
Niclosamide (5-chloro-salicyl-(2-chloro-4-nitro) anilide) is an oral anthelmintic drug used for treating intestinal infection of most tapeworms. Recently, niclosamide was shown to have considerable efficacy against some tumor cell lines, including colorectal, prostate, and breast cancers, and acute myelogenous leukemia. Specifically, the drug was identified as a potent inhibitor of signal transducer and activator of transcription 3 (STAT3), which is associated with osteoclast differentiation and function. In this study, we assessed the effect of niclosamide on osteoclastogenesis in vitro and in vivo. Our in vitro study showed that receptor activator of nuclear factor-kappaB ligand (RANKL)-induced osteoclast differentiation was inhibited by niclosamide, due to inhibition of serine-threonine protein kinase (Akt) phosphorylation, inhibitor of nuclear factor-kappaB (IκB), and STAT3 serine(727). Niclosamide decreased the expression of the major transcription factors c-Fos and NFATc1, and thereafter abrogated the mRNA expression of osteoclast-specific genes, including TRAP, OSCAR, αv/β3 integrin (integrin αv, integrin β3), and cathepsin K (CtsK). In an in vivo model, niclosamide prevented lipopolysaccharide-induced bone loss by diminishing osteoclast activity. Taken together, our results show that niclosamide is effective in suppressing osteoclastogenesis and may be considered as a new and safe therapeutic candidate for the clinical treatment of osteoclast-related diseases such as osteoporosis.
Collapse
Affiliation(s)
- Yoon-Hee Cheon
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Ju-Young Kim
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Jong Min Baek
- Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Sung-Jun Ahn
- Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Hong-Seob So
- Center for Metabolic Function Regulation, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea.
| | - Jaemin Oh
- Imaging Science-based Lung and Bone Diseases Research Center, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea; Department of Anatomy, School of Medicine, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea; Institute for Skeletal Disease, Wonkwang University School of Medicine, Iksan, Jeonbuk 570-749, Republic of Korea.
| |
Collapse
|
39
|
Kumar R, Sahu SK, Kumar M, Jana K, Gupta P, Gupta UD, Kundu M, Basu J. MicroRNA 17-5p regulates autophagy in Mycobacterium tuberculosis-infected macrophages by targeting Mcl-1 and STAT3. Cell Microbiol 2015; 18:679-91. [PMID: 26513648 DOI: 10.1111/cmi.12540] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 10/23/2015] [Accepted: 10/23/2015] [Indexed: 12/30/2022]
Abstract
Autophagy plays a crucial role in the control of bacterial burden during Mycobacterium tuberculosis infection. MicroRNAs (miRNAs) are small non-coding RNAs that regulate immune signalling and inflammation in response to challenge by pathogens. Appreciating the potential of host-directed therapies designed to control autophagy during mycobacterial infection, we focused on the role of miRNAs in regulating M. tuberculosis-induced autophagy in macrophages. Here, we demonstrate that M. tuberculosis infection leads to downregulation of miR-17 and concomitant upregulation of its targets Mcl-1 and STAT3, a transcriptional activator of Mcl-1. Forced expression of miR-17 reduces expression of Mcl-1 and STAT3 and also the interaction between Mcl-1 and Beclin-1. This is directly linked to enhanced autophagy, because Mcl-1 overexpression attenuates the effects of miR-17. At the same time, transfection with a kinase-inactive mutant of protein kinase C δ (PKCδ) (an activator of STAT3) augments M. tuberculosis-induced autophagy, and miR-17 overexpression diminishes phosphorylation of PKCδ, suggesting that an miR-17/PKC δ/STAT3 axis regulates autophagy during M. tuberculosis infection.
Collapse
Affiliation(s)
- Ranjeet Kumar
- Department of Chemistry, Bose Institute, Kolkata, 700009, India
| | | | - Manish Kumar
- Department of Chemistry, Bose Institute, Kolkata, 700009, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, Kolkata, 700054, India
| | - Pushpa Gupta
- National Jalma Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, 282006, India
| | - Umesh D Gupta
- National Jalma Institute for Leprosy and Other Mycobacterial Diseases, Tajganj, Agra, 282006, India
| | | | - Joyoti Basu
- Department of Chemistry, Bose Institute, Kolkata, 700009, India
| |
Collapse
|
40
|
Zhang Z, Yang X, Zhang L, Duan Z, Jia L, Wang P, Shi Y, Li Y, Gao J. Decreased expression and activation of Stat3 in severe preeclampsia. J Mol Histol 2015; 46:205-19. [DOI: 10.1007/s10735-015-9613-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 03/03/2015] [Indexed: 01/09/2023]
|
41
|
Dasgupta M, Unal H, Willard B, Yang J, Karnik SS, Stark GR. Critical role for lysine 685 in gene expression mediated by transcription factor unphosphorylated STAT3. J Biol Chem 2014; 289:30763-30771. [PMID: 25217633 DOI: 10.1074/jbc.m114.603894] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
STAT3 is a pleiotropic transcription factor that is activated by the phosphorylation of tyrosine 705 in response to many cytokines and growth factors. STAT3 without Tyr-705 phosphorylation (U-STAT3) is also a potent transcription factor, and its concentration in cells increases greatly in response to STAT3 activation because the STAT3 gene can be driven by phosphorylated STAT3 dimers. We have now searched for post-translational modifications of U-STAT3 that might have a critical role in its function. An analysis by mass spectroscopy indicated that U-STAT3 is acetylated on Lys-685, and the integrity of Lys-685 is required for the expression of most U-STAT3-dependent genes. In contrast, we found only a very minor role for Lys-685 in gene expression induced in response to tyrosine-phosphorylated STAT3. U-STAT3 plays an important role in angiotensin II-induced gene expression and in the consequent development of cardiac hypertrophy and dysfunction. Mutation of Lys-685 inhibits this function of STAT3, providing new information on the role of U-STAT3 in augmenting the development of heart failure.
Collapse
Affiliation(s)
- Maupali Dasgupta
- Departments of Molecular Genetics and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Hamiyet Unal
- Departments of Molecular Cardiology and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - Belinda Willard
- Mass Spectrometry Laboratory for Protein Sequencing, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195 and
| | - Jinbo Yang
- Departments of Molecular Genetics and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195; School of Life Science, Lanzhou University, Lanzhou, Gansu 73000, China
| | - Sadashiva S Karnik
- Departments of Molecular Cardiology and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195
| | - George R Stark
- Departments of Molecular Genetics and Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195.
| |
Collapse
|
42
|
Yu HJ, Shin JA, Jung JY, Nam JS, Hong IS, Cho NP, Cho SD. Inhibition of myeloid cell leukemia-1: Association with sorafenib-induced apoptosis in human mucoepidermoid carcinoma cells and tumor xenograft. Head Neck 2014; 37:1326-35. [PMID: 25043125 DOI: 10.1002/hed.23749] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 03/24/2014] [Accepted: 05/07/2014] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND The purpose of our study was to investigate the anticancer effect of sorafenib on mucoepidermoid carcinoma (MEC) and find its new molecular mechanism. METHODS The apoptotic effects of sorafenib were performed using MTS assay, diamidino-phenylindole (DAPI) staining, Western blotting, reverse transcription-polymerase chain reaction (RT-PCR), siRNA, and xenograft. RESULTS Sorafenib had apoptotic effects on MC-3 and YD15 cells and decreased myeloid cell leukemia-1 (Mcl-1) through proteasome-dependent protein degradation and the inhibition of protein synthesis. Sorafenib significantly affected truncated bid (t-Bid) and siMcl-1 resulting in the upregulation of t-Bid to induce apoptosis. Signal transducer and activator of transcription 3 (STAT3) phosphorylation was also blocked by sorafenib and a potent STAT3 inhibitor, cryptotanshinone clearly induced poly ADP-ribose polymerase (PARP) cleavage by inhibiting Mcl-1 and increasing t-Bid. Finally, administration of sorafenib significantly suppressed tumor growth and induced apoptosis in tumor xenograft model in association with downregulation of Mcl-1 without any side effects. CONCLUSION Taken together, these findings suggest that sorafenib can be a good anticancer drug candidate for the treatment of MEC.
Collapse
Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Ji-Youn Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, Republic of Korea
| | - Jeong-Seok Nam
- Lee Gil Ya Cancer and Diabetes Institute, Inchon, Republic of Korea
| | - In-Sun Hong
- Department of Molecular Medicine, Gachon University, Incheon, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| |
Collapse
|
43
|
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.
Collapse
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.
| |
Collapse
|
44
|
Signal integration and gene induction by a functionally distinct STAT3 phosphoform. Mol Cell Biol 2014; 34:1800-11. [PMID: 24615012 DOI: 10.1128/mcb.00034-14] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Aberrant activation of the ubiquitous transcription factor STAT3 is a major driver of solid tumor progression and pathological angiogenesis. STAT3 activity is regulated by numerous posttranslational modifications (PTMs), including Tyr(705) phosphorylation, which is widely used as an indicator of canonical STAT3 function. Here, we report a noncanonical mechanism of STAT3 activation that occurs independently of Tyr(705) phosphorylation. Using quantitative liquid chromatography-tandem mass spectrometry, we have discovered and characterized a novel STAT3 phosphoform that is simultaneously phosphorylated at Thr(714) and Ser(727) by glycogen synthase kinase 3α and -β (GSK-3α/β). Both Thr(714) and Ser(727) are required for STAT3-dependent gene induction in response to simultaneous activation of epidermal growth factor receptor (EGFR) and protease-activated receptor 1 (PAR-1) in endothelial cells. In this combinatorial signaling context, preventing formation of doubly phosphorylated STAT3 by depleting GSK-3α/β is sufficient to disrupt signal integration and inhibit STAT3-dependent gene expression. Levels of doubly phosphorylated STAT3 but not of Tyr(705)-phosphorylated STAT3 are remarkably elevated in clear-cell renal-cell carcinoma relative to adjacent normal tissue, suggesting that the GSK-3α/β-STAT3 pathway is active in the disease. Collectively, our results describe a functionally distinct, noncanonical STAT3 phosphoform that positively regulates target gene expression in a combinatorial signaling context and identify GSK-3α/β-STAT3 signaling as a potential therapeutic target in renal-cell carcinoma.
Collapse
|
45
|
Liu H, Yang J, Yuan Y, Xia Z, Chen M, Xie L, Ma X, Wang J, Ouyang S, Wu Q, Yu F, Zhou X, Yang Y, Cao Y, Hu J, Yin B. Regulation of Mcl-1 by constitutive activation of NF-κB contributes to cell viability in human esophageal squamous cell carcinoma cells. BMC Cancer 2014; 14:98. [PMID: 24529193 PMCID: PMC3930545 DOI: 10.1186/1471-2407-14-98] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 02/11/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of the most lethal malignancies with a 5-year survival rate less than 15%. Understanding of the molecular mechanisms involved in the pathogenesis of ESCC becomes critical to develop more effective treatments. METHODS Mcl-1 expression was measured by reverse transcription (RT)-PCR and Western blotting. Human Mcl-1 promoter activity was evaluated by reporter gene assay. The interactions between DNA and transcription factors were confirmed by electrophoretic mobility shift assay (EMSA) in vitro and by chromatin immunoprecipitation (ChIP) assay in cells. RESULTS Four human ESCC cell lines, TE-1, Eca109, KYSE150 and KYSE510, are revealed increased levels of Mcl-1 mRNA and protein compare with HaCaT, an immortal non-tumorigenic cell line. Results of reporter gene assays demonstrate that human Mcl-1 promoter activity is decreased by mutation of kappaB binding site, specific NF-kappaB inhibitor Bay11-7082 or dominant inhibitory molecule DNMIkappaBalpha in TE-1 and KYSE150 cell lines. Mcl-1 protein level is also attenuated by Bay11-7082 treatment or co-transfection of DNMIkappaBalpha in TE-1 and KYSE150 cells. EMSA results indicate that NF-kappaB subunits p50 and p65 bind to human Mcl-1-kappaB probe in vitro. ChIP assay further confirm p50 and p65 directly bind to human Mcl-1 promoter in intact cells, by which regulates Mcl-1 expression and contributes to the viability of TE-1 cells. CONCLUSIONS Our data provided evidence that one of the mechanisms of Mcl-1 expression in human ESCC is regulated by the activation of NF-kappaB signaling. The newly identified mechanism might provide a scientific basis for developing effective approaches to treatment human ESCC.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jianguo Hu
- Department of Cardiothoracic Surgery, The Second Xiangya Hospital, Central South University, 139 Renmin Road, Changsha, Hunan 410011, China.
| | | |
Collapse
|
46
|
Renjini AP, Titus S, Narayan P, Murali M, Jha RK, Laloraya M. STAT3 and MCL-1 associate to cause a mesenchymal epithelial transition. J Cell Sci 2014; 127:1738-50. [PMID: 24481815 DOI: 10.1242/jcs.138214] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Embryo implantation is effected by a myriad of signaling cascades acting on the embryo-endometrium axis. Here we show, by using MALDI TOF analysis, far-western analysis and colocalization and co-transfection studies, that STAT3 and MCL-1 are interacting partners during embryo implantation. We show in vitro that the interaction between the two endogenous proteins is strongly regulated by estrogen and progesterone. Implantation, pregnancy and embryogenesis are distinct from any other process in the body, with extensive, but controlled, proliferation, cell migration, apoptosis, cell invasion and differentiation. Cellular plasticity is vital during the early stages of development for morphogenesis and organ homeostasis, effecting the epithelial to mesenchymal transition (EMT) and, the reverse process, mesenchymal to epithelial transition (MET). STAT3 functionally associates with MCL-1 in the mammalian breast cancer cell line MCF7 that overexpresses STAT3 and MCL-1, which leads to an increased rate of apoptosis and decreased cellular invasion, disrupting the EMT. Association of MCL-1 with STAT3 modulates the normal, anti-apoptotic, activity of MCL-1, resulting in pro-apoptotic effects. Studying the impact of the association of STAT3 with MCL-1 on MET could lead to an enhanced understanding of pregnancy and infertility, and also metastatic tumors.
Collapse
Affiliation(s)
- A P Renjini
- Utero-Embryo Repromics Lab, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thycaud PO, Poojappura, Thiruvananthapuram 695 014, Kerala, India
| | | | | | | | | | | |
Collapse
|
47
|
Lee RH, Vazquez G. Evidence for a prosurvival role of alpha-7 nicotinic acetylcholine receptor in alternatively (M2)-activated macrophages. Physiol Rep 2013; 1:e00189. [PMID: 24744866 PMCID: PMC3970735 DOI: 10.1002/phy2.189] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 11/26/2013] [Indexed: 12/25/2022] Open
Abstract
Recent observations in endothelial cells and macrophages indicate that nicotinic acetylcholine receptors (nAChRs) are potential novel players in mechanisms linked to atherogenesis. In macrophages, α7nAChR mediates anti‐inflammatory actions and contributes to regulation of cholesterol flux and phagocytosis. Considering that macrophage apoptosis is a key process throughout all stages of atherosclerotic lesion development, in the present study, we examined for the first time the impact of α7nAChR expression and function in macrophage survival and apoptosis using in vitro polarized (M1 and M2) bone marrow‐derived macrophages (BMDMs) from wild‐type and α7nAChR knockout mice. Our findings show that stimulation of α7nAChR results in activation of the STAT3 prosurvival pathway and protection of macrophages from endoplasmic reticulum (ER) stress‐induced apoptosis. These actions are rather selective for M2 BMDMs and are associated to activation of the JAK2/STAT3 axis. Remarkably, these effects are completely lost in M2 macrophages lacking α7nAChR. Macrophage apoptosis is a key process throughout all stages of inflammatory vascular disease. Our studies examine for the first time the impact of α7nAChR expression and function in macrophage survival and apoptosis using in vitro polarized (M1 and M2) bone marrow‐derived macrophages (BMDMs) from wild‐type and α7nAChR knockout mice. We show that stimulation of α7nAChR activates the STAT3 prosurvival pathway and protects macrophages from endoplasmic reticulum stress‐induced apoptosis, an effect rather selective for M2 macrophages and completely lost in M2 macrophages lacking α7nAChR.
Collapse
Affiliation(s)
- Robert H Lee
- Department of Physiology and Pharmacology, Center for Diabetes and Endocrine Research, University of Toledo College of Medicine, Health Science Campus, 3000 Arlington Av, Toledo, 43614, Ohio, USA
| | - Guillermo Vazquez
- Department of Physiology and Pharmacology, Center for Diabetes and Endocrine Research, University of Toledo College of Medicine, Health Science Campus, 3000 Arlington Av, Toledo, 43614, Ohio, USA
| |
Collapse
|
48
|
Resveratrol suppresses cell proliferation via inhibition of STAT3 phosphorylation and Mcl-1 and cIAP-2 expression in HTLV-1-infected T cells. Leuk Res 2013; 37:1674-9. [DOI: 10.1016/j.leukres.2013.09.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 09/10/2013] [Accepted: 09/12/2013] [Indexed: 11/30/2022]
|
49
|
The effect of STAT3 inhibition on status epilepticus and subsequent spontaneous seizures in the pilocarpine model of acquired epilepsy. Neurobiol Dis 2013; 62:73-85. [PMID: 24051278 DOI: 10.1016/j.nbd.2013.09.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 08/16/2013] [Accepted: 09/06/2013] [Indexed: 01/07/2023] Open
Abstract
Pilocarpine-induced status epilepticus (SE), which results in temporal lobe epilepsy (TLE) in rodents, activates the JAK/STAT pathway. In the current study, we evaluate whether brief exposure to a selective inhibitor of the JAK/STAT pathway (WP1066) early after the onset of SE affects the severity of SE or reduces later spontaneous seizure frequency via inhibition of STAT3-regulated gene transcription. Rats that received systemic WP1066 or vehicle at the onset of SE were continuously video-EEG monitored during SE and for one month to assess seizure frequency over time. Protein and/or mRNA levels for pSTAT3, and STAT3-regulated genes including: ICER, Gabra1, c-myc, mcl-1, cyclin D1, and bcl-xl were evaluated in WP1066 and vehicle-treated rats during stages of epileptogenesis to determine the acute effects of WP1066 administration on SE and chronic epilepsy. WP1066 (two 50mg/kg doses) administered within the first hour after onset of SE results in transient inhibition of pSTAT3 and long-term reduction in spontaneous seizure frequency. WP1066 alters the severity of chronic epilepsy without affecting SE or cell death. Early WP1066 administration reduces known downstream targets of STAT3 transcription 24h after SE including cyclin D1 and mcl-1 levels, known for their roles in cell-cycle progression and cell survival, respectively. These findings uncover a potential effect of the JAK/STAT pathway after brain injury that is physiologically important and may provide a new therapeutic target that can be harnessed for the prevention of epilepsy development and/or progression.
Collapse
|
50
|
Park SY, Lee SW, Baek SH, Lee CW, Lee WS, Rhim BY, Hong KW, Kim CD. Suppression of PU.1-linked TLR4 expression by cilostazol with decrease of cytokine production in macrophages from patients with rheumatoid arthritis. Br J Pharmacol 2013; 168:1401-11. [PMID: 23072581 DOI: 10.1111/bph.12021] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 07/30/2012] [Accepted: 10/07/2012] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND AND PURPOSE The present study assessed the effects of cilostazol on LPS-stimulated TLR4 signal pathways in synovial macrophages from patients with rheumatoid arthritis (RA). These effects were confirmed in collagen-induced arthritis (CIA) in mice. EXPERIMENTAL APPROACH Expression of TLR4, PU.1, NF-κB p65 and IκBα on synovial fluid macrophages from RA patients was determined by Western blotting, and cytokines were measured by ELISA. Anti-arthritic effects were evaluated in CIA mice. KEY RESULTS Intracellular cAMP was concentration-dependently raised by cilostazol (1-100 μM). Cilostazol significantly suppressed LPS-stimulated increase of TLR4 expression by blocking PU.1 transcriptional activity in RA macrophages. In addition, cilostazol decreased LPS-induced myeloid differentiation factor 88 (MyD88) expression, but not that of TNF receptor-associated factor 6 (TRAF6). Cilostazol also suppressed IkBα degradation and NF-κB p65 nuclear translocation. Moreover, LPS-induced increase of cytokine production (TNF-α, IL-1β) was inhibited by cilostazol, an effect which was accompanied by suppression of IκBα degradation, and NF-κB p65 nuclear translocation. However, expression of anti-inflammatory IL-10 was elevated by cilostazol and forskolin/IBMX. In mice with CIA, post-treatment with cilostazol (30 mg kg⁻¹ day⁻¹) decreased expression of TLR4 in knee joints in association with decreased recruitment of macrophages. Consequently, synovial inflammation, proteoglycan depletion and bone erosion were significantly inhibited by cilostazol treatment. CONCLUSIONS AND IMPLICATIONS Cilostazol down-regulated LPS-stimulated PU.1-linked TLR4 expression and TLR4/MyD88/NF-κB signal pathways, and then suppressed inflammatory cytokine production in synovial macrophages from RA patients. Also cilostazol markedly inhibited the severity of CIA in mice.
Collapse
Affiliation(s)
- S Y Park
- Medical Research Center for Ischemic Tissue Regeneration, School of Medicine, Pusan National University, Gyeongsangnam-do, Korea
| | | | | | | | | | | | | | | |
Collapse
|