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Tausif YM, Thekkekkara D, Sai TE, Jahagirdar V, Arjun HR, Meheronnisha SK, Babu A, Banerjee A. Heat shock protein paradigms in cancer progression: future therapeutic perspectives. 3 Biotech 2024; 14:96. [PMID: 38449709 PMCID: PMC10912419 DOI: 10.1007/s13205-024-03951-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 01/28/2024] [Indexed: 03/08/2024] Open
Abstract
Heat-shock proteins (HSPs), also known as stress proteins, are ubiquitously present in all forms of life. They play pivotal roles in protein folding and unfolding, the formation of multiprotein complexes, the transportation and sorting of proteins into their designated subcellular compartments, the regulation of the cell cycle, and signalling processes. These HSPs encompass HSP27, HSP40, HSP70, HSP60, and HSP90, each contributing to various cellular functions. In the context of cancer, HSPs exert influence by either inhibiting or activating diverse signalling pathways, thereby impacting growth, differentiation, and cell division. This article offers an extensive exploration of the functions of HSPs within the realms of pharmacology and cancer biology. HSPs are believed to play substantial roles in the mechanisms underlying the initiation and progression of cancer. They hold promise as valuable clinical markers for cancer diagnosis, potential targets for therapeutic interventions, and indicators of disease progression. In times of cellular stress, HSPs function as molecular chaperones, safeguarding the structural and functional integrity of proteins and aiding in their proper folding. Moreover, HSPs play a crucial role in cancer growth, by regulating processes such as angiogenesis, cell proliferation, migration, invasion, and metastasis.
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Affiliation(s)
- Y. Mohammed Tausif
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Dithu Thekkekkara
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Thummuru Ekshita Sai
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Vaishnavi Jahagirdar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - H. R. Arjun
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - S. K. Meheronnisha
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Amrita Babu
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
| | - Aniruddha Banerjee
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysore, Karnataka 570 015 India
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Karademir D, Özgür A. Small molecule heat shock protein 27 inhibitor J2 decreases ovarian cancer cell proliferation via induction of apoptotic pathways. Med Oncol 2023; 40:250. [PMID: 37493998 DOI: 10.1007/s12032-023-02126-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 07/13/2023] [Indexed: 07/27/2023]
Abstract
Heat shock protein 27 (Hsp27) is an important member of the chaperone protein family and its overexpression promotes cancer cell survival. Here, we investigated the apoptosis inducer role of the J2 compound (Hsp27 inhibitor) in human ovarian cancer cell lines (SKOV3 and OVCAR-3). Cell proliferation was measured by MTT assay. The parameters of J2-Hsp27 interaction were determined with molecular docking calculation. The inhibitory effect of the J2 compound on Hsp27 chaperone activity was investigated by luciferase activity assay. Finally, the apoptotic inducer role of the J2 compound on SKOV3 and OVCAR-3 cells was determined by RT-PCR and caspase-3 activity assay. J2 compound decreased SKOV3 and OVCAR-3 cell proliferation in a dose-dependent manner at 48 h with IC50 values of 17.34 µM and 12.63 µM, respectively. J2 inhibited the refolding process of denatured luciferase as an Hsp27 inhibitor. Molecular docking calculation was carried out to determine the interaction between Hsp27 and J2. The results indicated that J2 selectively binds to the phosphorylation site of the Hsp27 and inhibits the phosphorylation process of Hsp27. To determine the apoptotic potential of the J2 compound against ovarian cancer cells, the mRNA expression levels of apoptotic and antiapoptotic markers (Bax, Bcl-2, Bcl-xL, Cyt-c, p53, Apaf-1, Cas-3, Cas-8, Cas-9, TNF-α, DAXX, and Ask-1) were measured using RT-PCR. While J2 increased the expressions of apoptotic genes, it decreased the expressions of anti-apoptotic genes. Further, the J2 compound increased Cas-3 activity in SKOV3 and OVCAR-3 at 5.52 and 4.12 folds, respectively. These results confirm that J2 has great potential and significance in the stimulation of apoptosis in ovarian cancer cells as an Hsp27 inhibitor.
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Affiliation(s)
- Dilay Karademir
- Faculty of Medicine, Department of Gynecology and Obstetrics, Sivas Cumhuriyet University, Sivas, Turkey.
| | - Aykut Özgür
- Artova Vocational School, Department of Veterinary Medicine, Laboratory and Veterinary Health Program, Tokat Gaziosmanpasa University, Tokat, Turkey
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Tustumi F, Agareno GA, Galletti RP, da Silva RBR, Quintas JG, Sesconetto LDA, Szor DJ, Wolosker N. The Role of the Heat-Shock Proteins in Esophagogastric Cancer. Cells 2022; 11:cells11172664. [PMID: 36078072 PMCID: PMC9454628 DOI: 10.3390/cells11172664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 01/05/2023] Open
Abstract
Heat-shock proteins (HSPs) are a family of proteins that have received considerable attention over the last several years. They have been classified into six prominent families: high-molecular-mass HSP, 90, 70, 60, 40, and small heat shock proteins. HSPs participate in protein folding, stability, and maturation of several proteins during stress, such as in heat, oxidative stress, fever, and inflammation. Due to the immunogenic host’s role in the combat against cancer cells and the role of the inflammation in the cancer control or progression, abnormal expression of these proteins has been associated with many types of cancer, including esophagogastric cancer. This study aims to review all the evidence concerning the role of HSPs in the pathogenesis and prognosis of esophagogastric cancer and their potential role in future treatment options. This narrative review gathers scientific evidence concerning HSPs in relation to esophagus and gastric cancer. All esophagogastric cancer subtypes are included. The role of HSPs in carcinogenesis, prognostication, and therapy for esophagogastric cancer are discussed. The main topics covered are premalignant conditions for gastric cancer atrophic gastritis, Barrett esophagus, and some viral infections such as human papillomavirus (HPV) and Epstein–Barr virus (EBV). HSPs represent new perspectives on the development, prognostication, and treatment of esophagogastric cancer.
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Affiliation(s)
- Francisco Tustumi
- Department of Gastroenterology, Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 255, São Paulo 05403-000, SP, Brazil
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
- Correspondence:
| | - Gabriel Andrade Agareno
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Ricardo Purchio Galletti
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Rafael Benjamim Rosa da Silva
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Julia Grams Quintas
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Lucas de Abreu Sesconetto
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Daniel José Szor
- Department of Gastroenterology, Universidade de São Paulo, Av. Dr. Enéas Carvalho de Aguiar, 255, São Paulo 05403-000, SP, Brazil
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
| | - Nelson Wolosker
- Department of Surgery, Hospital Israelita Albert Einstein, Av. Albert Einstein, 627, São Paulo 05652-900, SP, Brazil
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Zhang B, Fan Y, Cao P, Tan K. Multifaceted roles of HSF1 in cell death: A state-of-the-art review. Biochim Biophys Acta Rev Cancer 2021; 1876:188591. [PMID: 34273469 DOI: 10.1016/j.bbcan.2021.188591] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/24/2021] [Accepted: 07/11/2021] [Indexed: 02/08/2023]
Abstract
Cell death is a common and active process that is involved in various biological processes, including organ development, morphogenesis, maintaining tissue homeostasis and eliminating potentially harmful cells. Abnormal regulation of cell death significantly contributes to tumor development, progression and chemoresistance. The mechanisms of cell death are complex and involve not only apoptosis and necrosis but also their cross-talk with other types of cell death, such as autophagy and the newly identified ferroptosis. Cancer cells are chronically exposed to various stresses, such as lack of oxygen and nutrients, immune responses, dysregulated metabolism and genomic instability, all of which lead to activation of heat shock factor 1 (HSF1). In response to heat shock, oxidative stress and proteotoxic stresses, HSF1 upregulates transcription of heat shock proteins (HSPs), which act as molecular chaperones to protect normal cells from stresses and various diseases. Accumulating evidence suggests that HSF1 regulates multiple types of cell death through different signaling pathways as well as expression of distinct target genes in cancer cells. Here, we review the current understanding of the potential roles and molecular mechanism of HSF1 in regulating apoptosis, autophagy and ferroptosis. Deciphering HSF1-regulated signaling pathways and target genes may help in the development of new targeted anti-cancer therapeutic strategies.
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Affiliation(s)
- Bingwei Zhang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China; Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yumei Fan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Pengxiu Cao
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Ke Tan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China.
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Zhang Y, Wang X, Wang S, Yan Z, Li C, Zheng Y, Cui L. Heat Shock Protein 27 Regulates the Inflammatory Response of Intestinal Epithelial Cells by the Nuclear Factor-κB Pathway. Dig Dis Sci 2020; 65:3514-3520. [PMID: 32078087 DOI: 10.1007/s10620-020-06074-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 01/12/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND The specific and accurate pathogenesis of diarrhea-type irritable bowel syndrome is still unclear. AIMS We explored the mechanism of heat shock protein 27 (HSP27) in diarrhea-type irritable bowel syndrome to identify the key targets for the disease. METHODS The human colonic epithelial cell lines Caco-2 and NCM460 were pretreated with KRIBB3 (a phosphorylation inhibitor of HSP27) and then stimulated with lipopolysaccharide for different times. The apoptosis ratios of Caco-2 and NCM460 cells were examined with Annexin V/PI assays. Cell growth was determined using the cell counting kit-8 assay, and the expression levels of IL-1β and IL-6 in the cell supernatant were analyzed by ELISA. In addition, the expression levels of HSP27 and the nuclear factor-κB (NF-κB) signaling pathway were examined by Western blot assay. RESULTS Stimulation with lipopolysaccharide promoted the expression of HSP27 in colonic epithelial cells. HSP27 was phosphorylated at serine 78 and 82 after exposure to LPS. Apoptosis, growth inhibition, and inflammatory factor expression of lipopolysaccharide-induced colonic epithelial cells were greatly exacerbated by KRIBB3 treatment. In addition, KRIBB3 inhibited the phosphorylation of IκB-α and the activation of NF-κB. Gene silencing by small interfering RNA indicated that phosphorylation of HSP27 may regulate the NF-κB pathway. CONCLUSIONS HSP27 plays an important role in the inflammatory response of intestinal human colonic epithelial cells. HSP27 may protect intestinal epithelial cells against damage by regulating the NF-κB pathway.
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Affiliation(s)
- Yajun Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510280, Guangdong Province, China.,Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Xiaohui Wang
- Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Shaoxin Wang
- Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Zhihui Yan
- Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Chao Li
- Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Yan Zheng
- Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China
| | - Lihong Cui
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510280, Guangdong Province, China. .,Department of Gastroenterology, The Sixth Medical Center, PLA General Hospital, NO. 6 Fucheng Road, Haidian District, Beijing, 100048, China.
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6
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Shan R, Liu N, Yan Y, Liu B. Apoptosis, autophagy and atherosclerosis: Relationships and the role of Hsp27. Pharmacol Res 2020; 166:105169. [PMID: 33053445 DOI: 10.1016/j.phrs.2020.105169] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/16/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023]
Abstract
Atherosclerosis is a multifactorial chronic inflammatory disease of the arterial wall, and an important pathological basis of coronary heart disease. Endothelial cells, vascular smooth muscle cells, and macrophages play important roles in the development of atherosclerosis. Of note, apoptosis and autophagy, two types of programmed cell death, influence the development and progression of atherosclerosis via the modulation of such cells. The small heat shock protein Hsp27 is a multifunctional protein induced by various stress factors and has a protective effect on cells. A large number of studies have demonstrated that Hsp27 plays an important role in regulating apoptosis. Recently, some studies have suggested that Hsp27 also participates in the autophagic process. Moreover, Hsp27 is closely related to the occurrence and development of atherosclerosis. Here, we summarize the molecular mechanisms of apoptosis and autophagy and discuss their effects on endothelial cells, vascular smooth muscle cells, and macrophages in the context of atherosclerotic procession. We further explore the involvement of Hsp27 in apoptosis, autophagy, and atherosclerosis. We speculate that Hsp27 may exert its anti-atherosclerotic role via the regulation of apoptosis and autophagy; this may provide the basis for the development of new approaches for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Ruiting Shan
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Ning Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Youyou Yan
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Bin Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China.
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7
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Ernst BP, Wiesmann N, Gieringer R, Eckrich J, Brieger J. HSP27 regulates viability and migration of cancer cell lines following irradiation. J Proteomics 2020; 226:103886. [DOI: 10.1016/j.jprot.2020.103886] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/28/2020] [Accepted: 06/21/2020] [Indexed: 12/25/2022]
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8
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Ma F, Zhang B, Ji S, Hu H, Kong Y, Hua Y, Luo S. Hypoxic Macrophage-Derived VEGF Promotes Proliferation and Invasion of Gastric Cancer Cells. Dig Dis Sci 2019; 64:3154-3163. [PMID: 31102128 DOI: 10.1007/s10620-019-05656-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 05/02/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND Gastric cancer (GC) is one of the most common causes of cancer death. Hypoxia is an important property of the tumor microenvironment of GC. Increasing evidence demonstrates that tumor-associated macrophages are related to the metastasis of GC, while the precise mechanism of how hypoxic macrophages affect tumor progression is still not fully understood. AIMS To examine whether the mediators released from hypoxic macrophages contribute to the invasion and proliferation of GC cells. METHODS Cell Counting Kit-8 was utilized to determine the proliferation of SGC7901 and MKN45 cells. The invasion of SGC7901 and MKN45 cells was measured by transwell invasion assay. Expression of VEGF mRNA in THP-1-derived macrophages was determined by RT-PCR, and protein level of VEGF in the culture medium was detected by ELISA. RESULTS The proliferation and invasion of SGC7901 and MKN45 cells were dramatically increased after treatment with conditioned medium (CM) collected from THP-1-derived macrophages under hypoxia (H-CM), and the phosphorylation of Akt and p38 in SGC7901 and MKN45 cells was also up-regulated by H-CM stimulation. Notably, blockage of PI3K-Akt or p38 MAP kinase abolished the effects of H-CM on the proliferation and invasion of SGC7901 and MKN45 cells. Furthermore, VEGF was increased in macrophages after hypoxia and administration with nintedanib, an inhibitor of VEGFR, significantly decreases the phosphorylation of Akt and p38, as well as the proliferation and invasion of SGC7901 and MKN45 cells in response to H-CM. CONCLUSIONS Our findings suggest that hypoxia-injured macrophages contribute to the proliferation and invasion of GC cells through the release of mediators such as VEGF.
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Affiliation(s)
- Fei Ma
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Bin Zhang
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Sheqing Ji
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Hongtao Hu
- Department of Intervention Radiology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Ye Kong
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Yawei Hua
- Department of General Surgery, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China
| | - Suxia Luo
- Department of Medical Oncology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, China.
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9
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Targeting Heat Shock Protein 27 in Cancer: A Druggable Target for Cancer Treatment? Cancers (Basel) 2019; 11:cancers11081195. [PMID: 31426426 PMCID: PMC6721579 DOI: 10.3390/cancers11081195] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/06/2019] [Accepted: 08/07/2019] [Indexed: 12/13/2022] Open
Abstract
Heat shock protein 27 (HSP27), induced by heat shock, environmental, and pathophysiological stressors, is a multi-functional protein that acts as a protein chaperone and an antioxidant. HSP27 plays a significant role in the inhibition of apoptosis and actin cytoskeletal remodeling. HSP27 is upregulated in many cancers and is associated with a poor prognosis, as well as treatment resistance, whereby cells are protected from therapeutic agents that normally induce apoptosis. This review highlights the most recent findings and role of HSP27 in cancer, as well as the strategies for using HSP27 inhibitors for therapeutic purposes.
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10
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Shi G, Zhang H, Yu Q, Hu C, Ji Y. GATA1 gene silencing inhibits invasion, proliferation and migration of cholangiocarcinoma stem cells via disrupting the PI3K/AKT pathway. Onco Targets Ther 2019; 12:5335-5354. [PMID: 31456644 PMCID: PMC6620705 DOI: 10.2147/ott.s198750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 05/12/2019] [Indexed: 12/14/2022] Open
Abstract
Background/aims: Intrahepatic cholangiocarcinoma (CCA) is the second most prevalent type primary liver malignancy, accompanied by an increasing global incidence and mortality rate. Research has documented the contribution of the GATA binding protein-1 (GATA1) in the progression of liver cancer. Here, we aim to investigate the role of GATA1 in CCA stem cells via the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) pathway. Methods: Initially, microarray-based gene expression profiling was employed to identify the differentially expressed genes associated with CCA. Subsequently, an investigation was conducted to explore the potential biological significance behind the silencing of GATA1 and the regulatory mechanism between GATA1 and PI3K/AKT pathway. CCA cell lines QBC-939 and RBE were selected and treated with siRNA against GATA1 or/and a PI3K/AKT pathway inhibitor LY294002. In vivo experiment was also conducted to confirm in vitro findings. Results: GATA1 exhibited higher expression in CCA samples and was predicted to affect the progression of CCA through blockade of the PI3K/AKT pathway. siRNA-mediated downregulation of GATA1 and LY294002 treatment resulted in reduced proliferation, migration and invasion abilities of CCA stem cells, together with impeded tumor growth, and led to increased cell apoptosis and primary cilium expression. Additionally, the siRNA-mediated GATA1 downregulation had an inhibitory effect on the PI3K/AKT pathway. LY294002 was manifested to enhance the inhibitory effects of GATA1 inhibition on CCA progression. These in vitro findings were reproduced in vivo on siRNA against GATA1 or LY294002 injected nude mice. Conclusion: Altogether, the present study highlighted that downregulation of GATA1 via blockade of the PI3K/AKT pathway could inhibit the CCA stem cell proliferation, migration and invasion, and tumor growth, and promote cell apoptosis, primary cilium expression.
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Affiliation(s)
- Guang Shi
- Department of Hematology and Oncology, the Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Hong Zhang
- Department of Clinical Medicine, Changchun Medical College, Changchun 130031, People's Republic of China
| | - Qiong Yu
- Department of Hematology and Oncology, the Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Chunmei Hu
- Department of Hematology and Oncology, the Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Youbo Ji
- Department of Pain, the Second Hospital of Jilin University, Changchun 130041, People's Republic of China
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11
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Joshi P, Seki T, Kitamura S, Bergano A, Lee B, Perera RJ. Transcriptome stability profiling using 5'-bromouridine IP chase (BRIC-seq) identifies novel and functional microRNA targets in human melanoma cells. RNA Biol 2019; 16:1355-1363. [PMID: 31179855 DOI: 10.1080/15476286.2019.1629769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
RNA half-life is closely related to its cellular physiological function, so stability determinants may have regulatory functions. Micro(mi)RNAs have primarily been studied with respect to post-transcriptional mRNA regulation and target degradation. Here we study the impact of the tumour suppressive melanoma miRNA miR-211 on transcriptome stability and phenotype in the non-pigmented melanoma cell line, A375. Using 5'-bromouridine IP chase (BRIC)-seq, transcriptome-wide RNA stability profiles revealed highly regulated genes and pathways important in this melanoma cell line. By combining BRIC-seq, RNA-seq and in silico predictions, we identified both existing and novel direct miR-211 targets. We validated DUSP3 as one such novel miR-211 target, which itself sustains colony formation and invasion in A375 cells via MAPK/PI3K signalling. miRNAs have the capacity to control RNA turnover as a gene expression mechanism, and RNA stability profiling is an excellent tool for interrogating functionally relevant gene regulatory pathways and miRNA targets when combined with other high-throughput and in silico approaches.
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Affiliation(s)
- Piyush Joshi
- Department of Oncology, Johns Hopkins University School of Medicine , Baltimore , MD , USA.,Sanford Burnham Prebys Medical Discovery Institute , Orlando , FL , USA
| | - Tatsuya Seki
- Sanford Burnham Prebys Medical Discovery Institute , Orlando , FL , USA.,Medical and Biological Laboratories , Nagoya , Japan
| | | | - Andrea Bergano
- Sanford Burnham Prebys Medical Discovery Institute , Orlando , FL , USA
| | - Bongyong Lee
- Sanford Burnham Prebys Medical Discovery Institute , Orlando , FL , USA.,Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital , St. Petersburg , FL , USA
| | - Ranjan J Perera
- Sanford Burnham Prebys Medical Discovery Institute , Orlando , FL , USA.,Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital , St. Petersburg , FL , USA.,The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine , Baltimore , MD , USA
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12
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Li T, Yang Y, Song H, Li H, Cui A, Liu Y, Su L, Crispe IN, Tu Z. Activated NK cells kill hepatic stellate cells via p38/PI3K signaling in a TRAIL-involved degranulation manner. J Leukoc Biol 2019; 105:695-704. [PMID: 30748035 DOI: 10.1002/jlb.2a0118-031rr] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 01/22/2019] [Accepted: 01/24/2019] [Indexed: 12/20/2022] Open
Abstract
NK cells are important in regulating hepatic fibrosis via their cytotoxic killing of hepatic stellate cells (HSCs). NK cells are activated by both cytokines such as IL-12 and IL-18, and innate immune stimuli such as ligation of TLRs. The secretion of IL-18 depends upon activation of the inflammasome, whereas TLRs are stimulated by microbial products. In the case of NK cells, IL-18 acts synergistically with stimulation of TLR3 to cause cell activation and cytotoxic function. In the present study, we activated NK cells to kill HSCs via IL-18 and TLR3 ligand stimulation, and dissected the signaling pathways or molecules critical for such activation or killing. We find that such activation depends on signaling via the p38/PI3K/AKT pathway, and that the activated NK cells mediate HSC death in a TRAIL-involved mechanism. As liver fibrosis is a major global health problem with no good solution, these results emphasize that the p38/PI3K/AKT pathway in NK cells may be a novel drug target to promote fibrosis regression.
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Affiliation(s)
- Tianyang Li
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China.,Infectious Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yang Yang
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
| | - Hongxiao Song
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
| | - Haijun Li
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
| | - An Cui
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
| | - Yanhou Liu
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
| | - Lishan Su
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China.,Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ian Nicholas Crispe
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China.,Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Zhengkun Tu
- Institute of Translational Medicine, First Hospital, Jilin University, Changchun, Jilin, China
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Soleimani A, Jalili‐Nik M, Avan A, Ferns GA, Khazaei M, Hassanian SM. The role of HSP27 in the development of drug resistance of gastrointestinal malignancies: Current status and perspectives. J Cell Physiol 2018; 234:8241-8248. [DOI: 10.1002/jcp.27666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 10/02/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Atena Soleimani
- Department of Clinical Biochemistry, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
- Student Research Committee, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Mohammad Jalili‐Nik
- Department of Clinical Biochemistry, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
- Student Research Committee, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences Mashhad Iran
- Department of Modern Sciences and Technologies, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Gordon A. Ferns
- Division of Medical Education Brighton & Sussex Medical School, University of Brighton Brighton UK
| | - Majid Khazaei
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences Mashhad Iran
- Department of Medical Physiology, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Seyed Mahdi Hassanian
- Department of Clinical Biochemistry, Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences Mashhad Iran
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14
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Park AM, Tsunoda I, Yoshie O. Heat shock protein 27 promotes cell cycle progression by down-regulating E2F transcription factor 4 and retinoblastoma family protein p130. J Biol Chem 2018; 293:15815-15826. [PMID: 30166342 DOI: 10.1074/jbc.ra118.003310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 08/23/2018] [Indexed: 02/05/2023] Open
Abstract
Heat shock protein 27 (HSP27) protects cells under stress. Here, we demonstrate that HSP27 also promotes cell cycle progression of MRC-5 human lung fibroblast cells. Serum starvation for 24 h induced G1 arrest in these cells, and upon serum refeeding, the cells initiated cell cycle progression accompanied by an increase in HSP27 protein levels. HSP27 levels peaked at 12 h, and transcriptional up-regulation of six G2/M-related genes (CCNA2, CCNB1, CCNB2, CDC25C, CDCA3, and CDK1) peaked at 24-48 h. siRNA-mediated HSP27 silencing in proliferating MRC-5 cells induced G2 arrest coinciding with down-regulation of these six genes. Of note, the promoters of all of these genes have the cell cycle-dependent element and/or the cell cycle gene-homology region. These promoter regions are known to be bound by the E2F family proteins (E2F-1 to E2F-8) and retinoblastoma (RB) family proteins (RB1, p107, and p130), among which E2F-4 and p130 were strongly up-regulated in HSP27-knockdown cells. E2F-4 or p130 knockdown concomitant with the HSP27 knockdown rescued MRC-5 cells from G2 arrest and up-regulated the six cell cycle genes. Moreover, we observed cellular senescence in MRC-5 cells on day 3 after the HSP27 knockdown, as evidenced by increased senescence-associated β-gal activity and up-regulated inflammatory cytokines. The cellular senescence was also suppressed by the concomitant knockdown of E2F-4/HSP27 or p130/HSP27. Our findings indicate that HSP27 promotes cell cycle progression of MRC-5 cells by suppressing expression of the transcriptional repressors E2F-4 and p130.
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Affiliation(s)
- Ah-Mee Park
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and
| | - Ikuo Tsunoda
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and
| | - Osamu Yoshie
- From the Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka 589-8511, Japan and.,the Health and Kampo Institute, 1-11-10 Murasakiyama, Sendai, Miyagi 981-3205, Japan
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15
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Marjaneh RM, Khazaei M, Ferns GA, Avan A, Aghaee-Bakhtiari SH. The role of microRNAs in 5-FU resistance of colorectal cancer: Possible mechanisms. J Cell Physiol 2018; 234:2306-2316. [PMID: 30191973 DOI: 10.1002/jcp.27221] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 07/12/2018] [Indexed: 12/24/2022]
Abstract
Colorectal cancer (CRC) is one of the most common cancers globally. Despite recent advances in therapeutic approaches, this cancer continues to have a poor prognosis, particularly when diagnosed late. 5-Fluorouracil (5-FU) has been commonly prescribed for patients with CRC, but resistance to 5-FU is one of the main reasons for failure in the treatment of this condition. Recently, microRNAs (miRNAs) have been established as a means of modifying the signaling pathways involved in initiation and progression of CRC and their role as oncogene or tumor suppressor have been investigated in various studies. Moreover, miRNAs through various mechanisms play an important role in inducing tumor resistance or sensitivity to anticancer drugs. Detecting and targeting these mechanisms may be a new therapeutic approach. This review summarizes the current knowledge about the potential roles of miRNAs in 5-FU resistance, with particular emphasis on molecular mechanism involved.
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Affiliation(s)
- Reyhaneh Moradi Marjaneh
- Torbat Heydarieh University of Medical Sciences, Torbat Heydarieh, Iran
- Department of Medical Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Khazaei
- Department of Medical Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Department of Medical Education, Brighton and Sussex Medical School, Perso Falmer, Brighton, UK
| | - Amir Avan
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Hamid Aghaee-Bakhtiari
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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16
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Zhao S, Wang Y, Zhang X, Zheng L, Zhu B, Yao S, Yang L, Du J. Melatonin Protects Against Hypoxia/Reoxygenation-Induced Dysfunction of Human Umbilical Vein Endothelial Cells Through Inhibiting Reactive Oxygen Species Generation. ACTA CARDIOLOGICA SINICA 2018; 34:424-431. [PMID: 30271093 PMCID: PMC6160513 DOI: 10.6515/acs.201809_34(5).20180708a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 07/08/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hypoxia/reoxygenation (H/R) in human umbilical vein endothelial cells (HUVECs) induces oxidative stress and eventually leads to vascular injury. OBJECTIVE The aim of this study was to examine the effect of melatonin on HUVECs injured by H/R and explore the underlying mechanisms. MATERIALS AND METHODS A model of HUVECs under hypoxia/reoxygenation was established. Cell migration and adhesive ability was measured by wound healing and adhesion assays. Cell proliferation was measured by EdU assay. Production of reactive oxygen species (ROS) was evaluated by CM-H2DCFDA staining. Actin cytoskeleton rearrangement was examined by immunofluorescence. Western blotting analysis were used to analyze P38 and HSP27 phosphorylation levels. RESULTS H/R inhibited HUVEC proliferation, cell migratory and adhesive capacities, whereas melatonin (1~100 μM) inhibited these effects in a dose-dependent manner. Melatonin alone did not affect HUVEC viability, however, it inhibited the increase in ROS production and cytoskeleton disruption elicited by H/R, and it dose-dependently prevented H/R-induced upregulation of P38 and HSP27 phosphorylation. In addition, the ROS scavenger N-acetyl-L-cysteine markedly inhibited increased phosphorylation levels of P38 and HSP27 under H/R. CONCLUSIONS Melatonin may have a potential clinical effect in trials of H/R-induced vascular injury through its antioxidant property.
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Affiliation(s)
- Shuo Zhao
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
| | - Yueyuan Wang
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
| | | | | | | | | | - Ling Yang
- Department of Cardiology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, 213003, China
| | - Jun Du
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, 211166
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17
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Leja-Szpak A, Nawrot-Porąbka K, Góralska M, Jastrzębska M, Link-Lenczowski P, Bonior J, Pierzchalski P, Jaworek J. Melatonin and its metabolite N1-acetyl-N2-formyl-5-methoxykynuramine (afmk) enhance chemosensitivity to gemcitabine in pancreatic carcinoma cells (PANC-1). Pharmacol Rep 2018; 70:1079-1088. [PMID: 30308458 DOI: 10.1016/j.pharep.2018.05.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/01/2018] [Accepted: 05/16/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Gemcitabine is a standard chemotherapeutic agent for patients suffering from pancreatic cancer. However, the applied therapy is not effective due to the resistance of tumor cells to cytostatics, caused by inefficiency of the apoptotic mechanisms. Herein, we present the hypothesis that melatonin and its metabolite N1-acetyl-N2-formyl-5-methoxykynuramine (AFMK) modify the effect of gemcitabine on PANC-1 cells and that this phenomenon is dependent on the modulation of apoptosis. METHODS PANC-1 cells have been incubated with melatonin, AFMK or gemcitabine alone or in combination to determine the cytotoxity and proliferative effects. In subsequent part of the study, cells were harvested, the proteins were isolated and analyzed employing immunoprecipitation/immunoblotting. RESULTS Incubation of PANC-1 cells with gemcitabine resulted in upregulation of pro-apoptotic bax and caspases proteins expression, downregulation of anti-apoptotic Bcl-2, heat shock proteins (HSPs) and modulation of cellular inhibitors of apoptosis (IAPs). Both melatonin and AFMK administered to PANC-1 in combination with gemcitabine inhibited the production of HSP70 and cIAP-2 as compared to the results obtained with gemcitabine alone. These changes were accompanied by upregulation of Bax/Bcl-2 ratio and reduction of procaspases-9 and -3 abundance, followed by an increase in the formation of active caspase of PANC-1 cells with combination of gemcitabine plus low doses of melatonin or AFMK led to enhanced cytotoxicity and resulted in the inhibition of PANC-1 cells growth as compared to effects of gemcitabine alone. CONCLUSION Melatonin and AFMK could improve the anti-tumor effect of gemcitabine in PANC-1 cells presumably through the modulation of apoptotic pathway.
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Affiliation(s)
- Anna Leja-Szpak
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland.
| | - Katarzyna Nawrot-Porąbka
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Marta Góralska
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Martyna Jastrzębska
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Paweł Link-Lenczowski
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Joanna Bonior
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Piotr Pierzchalski
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
| | - Jolanta Jaworek
- Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University School of Medicine, Kraków, Poland
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18
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Wei X, Qi Y, Jia N, Zhou Q, Zhang S, Wang Y. Hyperbaric oxygen treatment sensitizes gastric cancer cells to melatonin-induced apoptosis through multiple pathways. J Cell Biochem 2018; 119:6723-6731. [PMID: 29665051 DOI: 10.1002/jcb.26864] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 03/13/2018] [Indexed: 12/24/2022]
Abstract
Although extensive efforts have been made in recent decades to treat advanced gastric cancer with comprehensive therapy based on chemotherapy, effective anti-gastric cancer therapeutics are still lacking in the clinics. Therefore, potent novel anti-gastric cancer ways are greatly needed. Here, we explored hyperbaric oxygen treatment as a novel and effective adjuvant treatment method which has anti-gastric cancer effects when used together with melatonin. When performed together with MLT, HBO effectively inhibited tumorigenicity of gastric cancer through selectively inducing a robust tumor suppressive apoptosis response. Mechanistic studies revealed that the sensitizing effect of hyperbaric oxygen is due to decreased ratio of Bcl-2/Bax, increased level of p53, cleaved Caspase3, GRP78, CHOP, and LC3. These results give a vivid picture that classic apoptosis pathways including mitochondrial pathway, tumor suppressive endoplasmic reticulum stress (ERS), and autophagy are all involved in the process. From the preliminary results got from the current study, we identified that HBO sensitizes human gastric cancer cells to MLT-induced apoptosis through a variety of complicated molecular mechanisms. HBO may provide a novel candidate supplemental treatment method for further development of potential anti-gastric cancer therapeutics. The combination of HBO and MLT could be a promising treatment for advanced gastric cancer.
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Affiliation(s)
- Xiang Wei
- Laboratory of Molecular Biology and Department of Biochemistry, Key Laboratory of Gene Research of Anhui Province, Anhui Medical University, Hefei, Anhui, P.R. China.,General Department of Hyperbaric Oxygen, The Second People's Hospital of Hefei, Hefei, Anhui, P.R. China
| | - Yinliang Qi
- General Department of Hyperbaric Oxygen, The Second People's Hospital of Hefei, Hefei, Anhui, P.R. China
| | - Ning Jia
- Laboratory of Molecular Biology and Department of Biochemistry, Key Laboratory of Gene Research of Anhui Province, Anhui Medical University, Hefei, Anhui, P.R. China
| | - Qing Zhou
- Laboratory of Molecular Biology and Department of Biochemistry, Key Laboratory of Gene Research of Anhui Province, Anhui Medical University, Hefei, Anhui, P.R. China
| | - Sumei Zhang
- Laboratory of Molecular Biology and Department of Biochemistry, Key Laboratory of Gene Research of Anhui Province, Anhui Medical University, Hefei, Anhui, P.R. China.,General Department of Hyperbaric Oxygen, The Second People's Hospital of Hefei, Hefei, Anhui, P.R. China
| | - Yuan Wang
- Laboratory of Molecular Biology and Department of Biochemistry, Key Laboratory of Gene Research of Anhui Province, Anhui Medical University, Hefei, Anhui, P.R. China
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19
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Deng W, Wang Y, Zhao S, Zhang Y, Chen Y, Zhao X, Liu L, Sun S, Zhang L, Ye B, Du J. MICAL1 facilitates breast cancer cell proliferation via ROS-sensitive ERK/cyclin D pathway. J Cell Mol Med 2018. [PMID: 29524295 PMCID: PMC5980113 DOI: 10.1111/jcmm.13588] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Molecule interacting with CasL 1 (MICAL1) is a multidomain flavoprotein mono-oxygenase that strongly involves in cytoskeleton dynamics and cell oxidoreduction metabolism. Recently, results from our laboratory have shown that MICAL1 modulates reactive oxygen species (ROS) production, and the latter then activates phosphatidyl inositol 3-kinase (PI3K)/protein kinase B (Akt) signalling pathway which regulates breast cancer cell invasion. Herein, we performed this study to assess the involvement of MICAL1 in breast cancer cell proliferation and to explore the potential molecular mechanism. We noticed that depletion of MICAL1 markedly reduced cell proliferation in breast cancer cell line MCF-7 and T47D. This effect of MICAL1 on proliferation was independent of wnt/β-catenin and NF-κB pathways. Interestingly, depletion of MICAL1 significantly inhibited ROS production, decreased p-ERK expression and unfavourable for proliferative phenotype of breast cancer cells. Likewise, MICAL1 overexpression increased p-ERK level as well as p-ERK nucleus translocation. Moreover, we investigated the effect of MICAL1 on cell cycle-related proteins. MICAL1 positively regulated CDK4 and cyclin D expression, but not CDK2, CDK6, cyclin A and cyclin E. In addition, more expression of CDK4 and cyclin D by MICAL1 overexpression was blocked by PI3K/Akt inhibitor LY294002. LY294002 treatment also attenuated the increase in the p-ERK level in MICAL1-overexpressed breast cancer cells. Together, our results suggest that MICAL1 exhibits its effect on proliferation via maintaining cyclin D expression through ROS-sensitive PI3K/Akt/ERK signalling in breast cancer cells.
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Affiliation(s)
- Wenjie Deng
- Department of Physiology, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
| | - Yueyuan Wang
- Department of Physiology, Nanjing Medical University, Nanjing, China
| | - Shuo Zhao
- Department of Physiology, Nanjing Medical University, Nanjing, China
| | - Yujie Zhang
- Department of Physiology, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
| | - Yan Chen
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - Xuyang Zhao
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - Lei Liu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - Shixiu Sun
- Department of Physiology, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
| | - Lin Zhang
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China.,Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - Bixing Ye
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, China
| | - Jun Du
- Department of Physiology, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center For Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
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20
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Ye ZH, Gui DW. miR‑539 suppresses proliferation and induces apoptosis in renal cell carcinoma by targeting high mobility group A2. Mol Med Rep 2018; 17:5611-5618. [PMID: 29436648 PMCID: PMC5866001 DOI: 10.3892/mmr.2018.8578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 09/06/2017] [Indexed: 12/20/2022] Open
Abstract
Renal cell carcinoma (RCC) is one of the most common urinary malignancies with a high rate of morbidity. MicroRNAs (miRNAs) have been shown to be critical post-transcriptional regulators in tumorigenesis. The present study aimed to investigate the effect of miRNA (miR)-539 on the proliferation and apoptosis of RCC. The expression of miR-539 and high mobility group AT-hook 2(HMGA2) were examined in clinical RCC specimens. The 786-O RCC cell line was also used and was transfected with miR-539 mimics or inhibitors. The correlation between miR-539 and HMGA2 was confirmed using a luciferase reporter assay. Cell viability and apoptosis were detected using MTT and flow cytometry assays. The protein levels of HMGA2, AKT, phosphorylated (p)-AKT, mammalian target of rapamycin (mTOR) and p-mTOR were analyzed using western blot analysis. The results revealed that miR-539 was negatively correlated with the expression of HMGA2 in clinical RCC specimens. Further experiments identified HMGA2 as a direct target of miR-539. The overexpression of miR-539 downregulated the expression of HMGA2, reduced cell proliferation and promoted cell apoptosis, whereas the knockdown of miR-539 led to the opposite results. miR-539 also suppressed the phosphorylation of AKT and mTOR, without altering the levels of total AKT and mTOR. Taken together, the results of the present study indicated that miR-539 negatively regulated the expression of HMGA2 in clinical specimens and in vitro. miR539 inhibited cell proliferation and induced apoptosis in RCC cells. This regulatory effect of miR-539 may be associated with the AKT signaling pathway. Therefore, miR-539 may be used as a biomarker for predicting the progression of RCC.
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Affiliation(s)
- Zhi-Hua Ye
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, Hubei 435000, P.R. China
| | - Ding-Wen Gui
- Department of Urology and Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Huangshi, Hubei 435000, P.R. China
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21
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Wang Y, Deng W, Zhang Y, Sun S, Zhao S, Chen Y, Zhao X, Liu L, Du J. MICAL2 promotes breast cancer cell migration by maintaining epidermal growth factor receptor (EGFR) stability and EGFR/P38 signalling activation. Acta Physiol (Oxf) 2018; 222. [PMID: 28719045 DOI: 10.1111/apha.12920] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/08/2017] [Accepted: 07/10/2017] [Indexed: 01/08/2023]
Abstract
AIM MICAL2, a cytoskeleton dynamics regulator, is identified associated with survival and metastasis of several types of cancers recently. This study was designed to investigate the role of MICAL2 in breast cancer cell migration as well as its underlying mechanisms. METHODS The relationship between MICAL2 and EGF/EGFR signalling was analysed by gene overexpression and knock-down techniques. Cell migration was measured by wound-healing assays. Activation of EGF/EGFR signalling pathways were evaluated by immunofluorescence, qPCR, Western blotting and zymography techniques. Rac1 activity was assessed by pull-down assay. Correlation of MICAL2 and EGFR in breast cancer specimens was examined by immunohistochemical analysis. RESULTS Ectopic expression of MICAL2 in MCF-7 cells augmented EGFR protein level, accompanied by the promotion of cell migration. Silencing MICAL2 in MDA-MB-231 cells destabilized EGFR and inhibited cell migration. In mechanism, the maintaining effect of MICAL2 on EGFR protein content was due to a delay in EGFR degradation. Expression of MICAL2 was also shown positively correlated with the activation of P38/HSP27 and P38/MMP9 signallings, which are the main downstream signalling cascades of EGF/EGFR involved in cell migration. Further analysis indicated that Rac1 activation contributed to the maintaining effect of MICAL2 on EGFR stability. In addition, analysis of breast cancer specimens revealed a positive correlation between MICAL2 and EGFR levels and an association between MICAL2 expression and worse prognosis. CONCLUSION MICAL2 is a major regulator of breast cancer cell migration, maintaining EGFR stability and subsequent EGFR/P38 signalling activation through inhibiting EGFR degradation in a Rac1-dependent manner.
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Affiliation(s)
- Y Wang
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - W Deng
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Y Zhang
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - S Sun
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
| | - S Zhao
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Y Chen
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - X Zhao
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - L Liu
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - J Du
- Department of Physiology, Nanjing Medical University, Nanjing, Jiangsu, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, Jiangsu, China
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22
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Burban A, Sharanek A, Guguen-Guillouzo C, Guillouzo A. Endoplasmic reticulum stress precedes oxidative stress in antibiotic-induced cholestasis and cytotoxicity in human hepatocytes. Free Radic Biol Med 2018; 115:166-178. [PMID: 29191461 DOI: 10.1016/j.freeradbiomed.2017.11.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/11/2017] [Accepted: 11/22/2017] [Indexed: 12/12/2022]
Abstract
Endoplasmic reticulum (ER) stress has been associated with various drug-induced liver lesions but its participation in drug-induced cholestasis remains unclear. We first aimed at analyzing liver damage caused by various hepatotoxic antibiotics, including three penicillinase-resistant antibiotics (PRAs), i.e. flucloxacillin, cloxacillin and nafcillin, as well as trovafloxacin, levofloxacin and erythromycin, using human differentiated HepaRG cells and primary hepatocytes. All these antibiotics caused early cholestatic effects typified by bile canaliculi dilatation and reduced bile acid efflux within 2h and dose-dependent enhanced caspase-3 activity within 24h. PRAs induced the highest cholestatic effects at non cytotoxic concentrations. Then, molecular events involved in these lesions were analyzed. Early accumulation of misfolded proteins revealed by thioflavin-T fluorescence and associated with phosphorylation of the unfolded protein response sensors, eIF2α and/or IRE1α, was evidenced with all tested hepatotoxic antibiotics. Inhibition of ER stress markedly restored bile acid efflux and prevented bile canaliculi dilatation. Downstream of ER stress, ROS were also generated with high antibiotic concentrations. The protective HSP27-PI3K-AKT signaling pathway was activated only in PRA-treated cells and its inhibition increased ROS production and aggravated caspase-3 activity. Overall, our results demonstrate that (i) various antibiotics reported to cause cholestasis and hepatocellular injury in the clinic can also induce such effects in in vitro human hepatocytes; (ii) PRAs cause the strongest cholestatic effects in the absence of cytotoxicity; (iii) cholestatic features occur early through ER stress; (iv) cytotoxic lesions are observed later through ER stress-mediated ROS generation; and (v) activation of the HSP27-PI3K-AKT pathway protects from cytotoxic damage induced by PRAs only.
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Affiliation(s)
- Audrey Burban
- INSERM U991/1241, Numecan, Rennes, France; Rennes 1 University, Rennes, France
| | - Ahmad Sharanek
- INSERM U991/1241, Numecan, Rennes, France; Rennes 1 University, Rennes, France
| | | | - André Guillouzo
- INSERM U991/1241, Numecan, Rennes, France; Rennes 1 University, Rennes, France.
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23
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Asghari MH, Moloudizargari M, Ghobadi E, Fallah M, Abdollahi M. Melatonin as a multifunctional anti-cancer molecule: Implications in gastric cancer. Life Sci 2017; 185:38-45. [DOI: 10.1016/j.lfs.2017.07.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/14/2017] [Accepted: 07/20/2017] [Indexed: 12/13/2022]
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24
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Tsai TH, Lin CJ, Chua S, Chung SY, Yang CH, Tong MS, Hang CL. Melatonin attenuated the brain damage and cognitive impairment partially through MT2 melatonin receptor in mice with chronic cerebral hypoperfusion. Oncotarget 2017; 8:74320-74330. [PMID: 29088788 PMCID: PMC5650343 DOI: 10.18632/oncotarget.20382] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 06/19/2017] [Indexed: 12/13/2022] Open
Abstract
Background Vascular cognitive impairment (VCI) is a spectrum of cognitive impairment caused by various chronic diseases including aging, hypertension, and diabetes mellitus. Oxidative and inflammatory reactions induced by chronic cerebral hypoperfusion (CHP) are believed to cause VCI. Melatonin is reported to possess anti-oxidation and anti-inflammation effects. This study was designed to investigate the effect and mechanisms of melatonin in CHP mice model. Results The behavioral function results revealed that CHP mice were significantly impaired when compared with the control. Melatonin improved the cognitive function, but the addition of MT2 receptor antagonist reversed the improvement. The IHC staining showed melatonin significantly improved WM lesions and gliosis in CHP mice. Again, the addition of MT2 receptor antagonist to melatonin worsened the WM lesion and gliosis. Similar results were also found for mRNA and protein expressions of oxidative reaction and inflammatory cytokines. Materials and Method Forty C57BL/6 mice were divided into four groups: Group 1: sham control; Group 2: CHP mice; Group 3: CHP with melatonin treatment; Group 4: CHP-melatonin and MT2 receptor antagonist (all groups n = 10). Working memory was assessed with Y–arm test at day-28 post-BCAS (bilateral carotid artery stenosis). All mice were sacrificed at day-30 post-BCAS. The immunohistochemical (IHC) staining was used for white matter (WM) damage and gliosis. The expression of mRNA and proteins about inflammatory and oxidative reaction were measured and compared between groups. Conclusions Partially through MT2 receptor, melatonin is effective for CHP-induced brain damage.
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Affiliation(s)
- Tzu-Hsien Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Center for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Jei Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Sarah Chua
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Sheng-Ying Chung
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Hsu Yang
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Meng-Shen Tong
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chi-Ling Hang
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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25
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Penicillinase-resistant antibiotics induce non-immune-mediated cholestasis through HSP27 activation associated with PKC/P38 and PI3K/AKT signaling pathways. Sci Rep 2017; 7:1815. [PMID: 28500348 PMCID: PMC5431934 DOI: 10.1038/s41598-017-01171-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/22/2017] [Indexed: 12/14/2022] Open
Abstract
The penicillinase-resistant antibiotics (PRAs), especially the highly prescribed flucloxacillin, caused frequent liver injury via mechanisms that remain largely non-elucidated. We first showed that flucloxacillin, independently of cytotoxicity, could exhibit cholestatic effects in human hepatocytes in the absence of an immune reaction, that were typified by dilatation of bile canaliculi associated with impairment of the Rho-kinase signaling pathway and reduced bile acid efflux. Then, we analyzed the sequential molecular events involved in flucloxacillin-induced cholestasis. A crucial role of HSP27 by inhibiting Rho-kinase activity was demonstrated using siRNA and the specific inhibitor KRIBB3. HSP27 activation was dependent on the PKC/P38 pathway, and led downstream to activation of the PI3K/AKT pathway. Other PRAs induced similar cholestatic effects while non PRAs were ineffective. Our results demonstrate that PRAs can induce cholestatic features in human hepatocytes through HSP27 activation associated with PKC/P38 and PI3K/AKT signaling pathways and consequently support the conclusion that in clinic they can cause a non-immune-mediated cholestasis that is not restricted to patients possessing certain genetic determinants.
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26
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Hsu JT, Le PH, Lin CJ, Chen TH, Kuo CJ, Chiang KC, Yeh TS. Mechanism of salutary effects of melatonin-mediated liver protection after trauma-hemorrhage: p38 MAPK-dependent iNOS/HIF-1α pathway. Am J Physiol Gastrointest Liver Physiol 2017; 312:G427-G433. [PMID: 28254774 DOI: 10.1152/ajpgi.00440.2016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/08/2017] [Accepted: 02/19/2017] [Indexed: 01/31/2023]
Abstract
Although melatonin attenuates the increases in inflammatory mediators and reduces organ injury during trauma-hemorrhage, the mechanisms remain unclear. This study explored whether melatonin prevents liver injury after trauma-hemorrhage through the p38 mitogen-activated protein kinase (MAPK)-dependent, inducible nitrite oxide (iNOS)/hypoxia-inducible factor (HIF)-1α pathway. After a 5-cm midline laparotomy, male rats underwent hemorrhagic shock (mean blood pressure ~40 mmHg for 90 min) followed by fluid resuscitation. At the onset of resuscitation, rats were treated with vehicle, melatonin (2 mg/kg), melatonin plus p38 MAPK inhibitor SB203580 (2 mg/kg), or melatonin plus the melatonin receptor antagonist luzindole (2.5 mg/kg). At 2 h after trauma-hemorrhage, histopathology score of liver injury, liver tissue myeloperoxidase activity, malondialdehyde, adenosine triphosphate, serum alanine aminotransferase, and asparate aminotransferase levels were significantly increased compared with sham-operated control. Trauma-hemorrhage resulted in a significant decrease in the p38 MAPK activation compared with that in the sham-treated animals. Administration of melatonin after trauma-hemorrhage normalized liver p38 MAPK phosphorylation and iNOS and HIF-1α expression and attenuated cleaved caspase 3 and receptor interacting protein kinase-1 levels. Coadministration of SB203580 or luzindole abolished the melatonin-mediated attenuation of the trauma-hemorrhage-induced increase of iNOS/HIF-1α protein expression and liver injury markers. Taken together, our results suggest that melatonin prevents trauma-hemorrhage-induced liver injury in rats, at least in part, through melatonin receptor-related, p38 MAPK-dependent iNOS/HIF-1α pathway.NEW & NOTEWORTHY Trauma-hemorrhage resulted in a significant decrease in liver p38 MAPK activation and increase in nitrite oxide synthase (iNOS) and hypoxia-inducible factor (HIF)-1α expression. Administration of melatonin after trauma-hemorrhage normalized liver p38 MAPK phosphorylation and iNOS and HIF-1α expression, which was abolished by coadministration of SB203580 or luzindole. Melatonin prevents trauma-hemorrhage-induced liver injury in rats via the melatonin receptor-related, p38 MAPK-dependent iNOS/HIF-1α pathway.
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Affiliation(s)
- Jun-Te Hsu
- Department of Surgery, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan;
| | - Puo-Hsien Le
- Department of Gastroenterology, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan; and
| | - Chun-Jung Lin
- Department of Gastroenterology, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan; and
| | - Tsung-Hsing Chen
- Department of Gastroenterology, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan; and
| | - Chia-Jung Kuo
- Department of Gastroenterology, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan; and
| | - Kun-Chun Chiang
- Department of Surgery, Chang Gung Memorial Hospital at Keelung, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Chang Gung Memorial Hospital at Linkou, Chang Gung University College of Medicine, Taoyuan, Taiwan
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Kilic U, Caglayan AB, Beker MC, Gunal MY, Caglayan B, Yalcin E, Kelestemur T, Gundogdu RZ, Yulug B, Yılmaz B, Kerman BE, Kilic E. Particular phosphorylation of PI3K/Akt on Thr308 via PDK-1 and PTEN mediates melatonin's neuroprotective activity after focal cerebral ischemia in mice. Redox Biol 2017; 12:657-665. [PMID: 28395173 PMCID: PMC5388917 DOI: 10.1016/j.redox.2017.04.006] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 03/27/2017] [Accepted: 04/01/2017] [Indexed: 12/15/2022] Open
Abstract
Apart from its potent antioxidant property, recent studies have revealed that melatonin promotes PI3K/Akt phosphorylation following focal cerebral ischemia (FCI) in mice. However, it is not clear (i) whether increased PI3K/Akt phosphorylation is a concomitant event or it directly contributes to melatonin's neuroprotective effect, and (ii) how melatonin regulates PI3K/Akt signaling pathway after FCI. In this study, we showed that Akt was intensively phosphorylated at the Thr308 activation loop as compared with Ser473 by melatonin after FCI. Melatonin treatment reduced infarct volume, which was reversed by PI3K/Akt inhibition. However, PI3K/Akt inhibition did not inhibit melatonin's positive effect on brain swelling and IgG extravasation. Additionally, phosphorylation of mTOR, PTEN, AMPKα, PDK1 and RSK1 were increased, while phosphorylation of 4E-BP1, GSK-3α/β, S6 ribosomal protein were decreased in melatonin treated animals. In addition, melatonin decreased apoptosis through reduced p53 phosphorylation by the PI3K/Akt pathway. In conclusion, we demonstrated the activation profiles of PI3K/Akt signaling pathway components in the pathophysiological aspect of ischemic stroke and melatonin's neuroprotective activity. Our data suggest that Akt phosphorylation, preferably at the Thr308 site of the activation loop via PDK1 and PTEN, mediates melatonin's neuroprotective activity and increased Akt phosphorylation leads to reduced apoptosis.
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Affiliation(s)
- Ulkan Kilic
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Medical Biology, Istanbul Medipol University, Turkey
| | - Ahmet Burak Caglayan
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Mustafa Caglar Beker
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Mehmet Yalcin Gunal
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Berrak Caglayan
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Esra Yalcin
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Taha Kelestemur
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Reyhan Zeynep Gundogdu
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey
| | - Burak Yulug
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Neurology, Istanbul Medipol University, Turkey
| | - Bayram Yılmaz
- Dept. of Physiology, Yeditepe University, Istanbul, Turkey
| | - Bilal Ersen Kerman
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Histology and Embryology, Istanbul Medipol University, Turkey
| | - Ertugrul Kilic
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey; Dept. of Physiology, Istanbul Medipol University, Turkey.
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Yu J, Wang R, Chen J, Wu J, Dang Z, Zhang Q, Li B. miR-340 Inhibits Proliferation and Induces Apoptosis in Gastric Cancer Cell Line SGC-7901, Possibly via the AKT Pathway. Med Sci Monit 2017; 23:71-77. [PMID: 28057912 PMCID: PMC5238948 DOI: 10.12659/msm.898449] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Gastric cancer is among the most common types of cancer, with high morbidity and mortality. MicroRNAs (miRNAs) play vital roles in the tumorigenesis and biology of gastric cancer. This study aimed to reveal the role of miR-340 in gastric cancer cell proliferation and apoptosis and to elucidate the potential mechanisms. MATERIAL AND METHODS Human gastric cancer cells SGC-7901 were used in this study for cell transfection with miR-340 mimic or inhibitor. After transfection, cell viability, proliferation, and apoptosis were examined by MTT, BrdU, and flow cytometry assays, respectively. The protein level changes of p27, p21, Caspase 3 (CASP3), B cell lymphoma 2 (BCL2), BCL2-associated X protein (BAX), and v-AKT murine thymoma viral oncogene (AKT) were detected by Western blot. RESULTS Overexpression of miR-340 significantly reduced cell viability and proliferation (P<0.01), and induced cell apoptosis (P<0.01) of SGC-7901. miR-340 elevated the protein level of cell cycle inhibitor p27, but did not affect the level of p21. Apoptosis-related factors pro-CASP3, cleaved-CASP3, and BAX were promoted, and BCL2 was inhibited by miR-340. miR-340 also suppressed the phosphorylation of AKT. Opposite effects were detected when SGC-7901 cells were transfected with miR-340 inhibitor. CONCLUSIONS These results indicate that miR-340 can inhibit proliferation and induce apoptosis of SGC-7901 cells, suggesting its roles in protecting against gastric cancer. The roles of miR-340 in gastric cancer cells may be associated with its regulation of the AKT pathway. Thus, miR-340 may be a potential therapeutic strategy for gastric cancer treatment.
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Affiliation(s)
- Jinzhong Yu
- Department of Gastroenterology, Henan Province Hospital of TCM, Zhengzhou, Henan, China (mainland)
| | - Ruijie Wang
- Second Clinical Medical College, Henan University of Chinese Medicine, Zhengzhou, Henan, China (mainland)
| | - Jianshe Chen
- Department of Reproductive Medicine, Henan Province Hospital of TCM, Zhengzhou, Henan, China (mainland)
| | - Jinfeng Wu
- Department of Gastroenterology, Shenzhen Luohu People's Hospital, Shenzhen, Guangdong, China (mainland)
| | - Zhongqin Dang
- Department of Gastroenterology, Henan Province Hospital of TCM, Zhengzhou, Henan, China (mainland)
| | - Qinsheng Zhang
- Department of Gastroenterology, Henan Province Hospital of TCM, Zhengzhou, Henan, China (mainland)
| | - Bo Li
- Department of Gastroenterology, Henan Province Hospital of TCM, Zhengzhou, Henan, China (mainland)
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29
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Wu J, Liu T, Rios Z, Mei Q, Lin X, Cao S. Heat Shock Proteins and Cancer. Trends Pharmacol Sci 2016; 38:226-256. [PMID: 28012700 DOI: 10.1016/j.tips.2016.11.009] [Citation(s) in RCA: 419] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 10/23/2016] [Accepted: 11/11/2016] [Indexed: 12/21/2022]
Abstract
Heat shock proteins (HSPs) constitute a large family of proteins involved in protein folding and maturation whose expression is induced by heat shock or other stressors. The major groups are classified based on their molecular weights and include HSP27, HSP40, HSP60, HSP70, HSP90, and large HSPs. HSPs play a significant role in cellular proliferation, differentiation, and carcinogenesis. In this article we comprehensively review the roles of major HSPs in cancer biology and pharmacology. HSPs are thought to play significant roles in the molecular mechanisms leading to cancer development and metastasis. HSPs may also have potential clinical uses as biomarkers for cancer diagnosis, for assessing disease progression, or as therapeutic targets for cancer therapy.
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Affiliation(s)
- Jianming Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Tuoen Liu
- Department of Biomedical Sciences, West Virginia School of Osteopathic Medicine, Lewisburg, WV 24901, USA.
| | - Zechary Rios
- University of Illinois College of Medicine at Chicago, Chicago, IL 60612, USA
| | - Qibing Mei
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xiukun Lin
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Shousong Cao
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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