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Wang YY, Wang WC, Su CW, Hsu CW, Yuan SS, Chen YK. Expression of Orai1 and STIM1 in human oral squamous cell carcinogenesis. J Dent Sci 2022; 17:78-88. [PMID: 35028023 PMCID: PMC8739746 DOI: 10.1016/j.jds.2021.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 07/07/2021] [Indexed: 12/21/2022] Open
Abstract
Background/purpose Return of Ca2+ to endoplasmic reticulum is mediated by Orai/STIM-mediated store-operated Ca2+ entry (SOCE) channel. We aimed to investigate Orai1 and STIM1 expressions in human oral carcinogenesis. Materials and methods Sixty-six oral squamous cell carcinomas (OSCCs), 14 oral potentially malignant disorders (OPMD) with moderate-severe oral epithelial dysplasia (OED), 19 OPMD with mild OED, and 14 normal oral mucosa (NOM) samples were subjected to immunohistochemical staining. Two human oral cancer cell lines (OCCLs), an oral premalignant cell line (DOK), and a normal oral keratinocyte culture (HOK) were used for Western blot and real-time quantitative reverse transcription-polymerase chain reaction. OCCLs were evaluated for proliferation, migration, and invasion assays. Results Orai1 and STIM1 protein and mRNA expressions in OSCC were significantly enhanced as compared with normal samples. Protein expressions of Orai1 and STIM1 in OCCLs were significantly enhanced as compared with HOK. Significant decreases in degrees of proliferation, migration and invasion were noted in OCCLs with Orai1 and STIM1 siRNA transfection as compared with those without transfection. Significantly increased Orai1 and STIM1 protein levels were noted in OPMD with moderate-severe OED as compared with those with mild OED. Conclusion Our results indicate that Orai1 and STIM1 overexpression is associated with human oral carcinogenesis.
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Affiliation(s)
- Yen-Yun Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Chen Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Oral Pathology & Maxillofacial Radiology, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Oral & Maxillofacial Imaging Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chiang-Wei Su
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ching-Wei Hsu
- Division of Oral & Maxillofacial Surgery, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shyng-Shiou Yuan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Obstetrics and Gynecology and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuk-Kwan Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Division of Oral Pathology & Maxillofacial Radiology, Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Oral & Maxillofacial Imaging Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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Abstract
Store-operated Ca2+ entry (SOCE) pathway plays important roles in many cellular processes, which is largely studied by using fluorescent Ca2+ indicator, Fura-2. Extracellular Mn2+ is able to cross the plasma membrane through SOCE and quenches the fluorescence signals from Fura-2. Thus, the fluorescence quenching rate by Mn2+ composes a convenient assay to monitor the extent of SOCE. This chapter describes an experimental method of Mn2+ quenching assay for both cultured esophageal epithelial and skeletal muscle cells. It also explains how to perform a quantitative analysis of graded SOCE.
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Iannotti FA, Pagano E, Moriello AS, Alvino FG, Sorrentino NC, D'Orsi L, Gazzerro E, Capasso R, De Leonibus E, De Petrocellis L, Di Marzo V. Effects of non-euphoric plant cannabinoids on muscle quality and performance of dystrophic mdx mice. Br J Pharmacol 2018; 176:1568-1584. [PMID: 30074247 DOI: 10.1111/bph.14460] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 07/08/2018] [Accepted: 07/12/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Duchenne muscular dystrophy (DMD), caused by dystrophin deficiency, results in chronic inflammation and irreversible skeletal muscle degeneration. Moreover, the associated impairment of autophagy greatly contributes to the aggravation of muscle damage. We explored the possibility of using non-euphoric compounds present in Cannabis sativa, cannabidiol (CBD), cannabidivarin (CBDV) and tetrahydrocannabidivarin (THCV), to reduce inflammation, restore functional autophagy and positively enhance muscle function in vivo. EXPERIMENTAL APPROACH Using quantitative PCR, western blots and [Ca2+ ]i measurements, we explored the effects of CBD and CBDV on the differentiation of both murine and human skeletal muscle cells as well as their potential interaction with TRP channels. Male dystrophic mdx mice were injected i.p. with CBD or CBDV at different stages of the disease. After treatment, locomotor tests and biochemical analyses were used to evaluate their effects on inflammation and autophagy. KEY RESULTS CBD and CBDV promoted the differentiation of murine C2C12 myoblast cells into myotubes by increasing [Ca2+ ]i mostly via TRPV1 activation, an effect that undergoes rapid desensitization. In primary satellite cells and myoblasts isolated from healthy and/or DMD donors, not only CBD and CBDV but also THCV promoted myotube formation, in this case, mostly via TRPA1 activation. In mdx mice, CBD (60 mg·kg-1 ) and CBDV (60 mg·kg-1 ) prevented the loss of locomotor activity, reduced inflammation and restored autophagy. CONCLUSION AND IMPLICATIONS We provide new insights into plant cannabinoid interactions with TRP channels in skeletal muscle, highlighting a potential opportunity for novel co-adjuvant therapies to prevent muscle degeneration in DMD patients. LINKED ARTICLES This article is part of a themed section on 8th European Workshop on Cannabinoid Research. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.10/issuetoc.
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Affiliation(s)
- Fabio Arturo Iannotti
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy
| | - Ester Pagano
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Aniello Schiano Moriello
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy
| | | | | | - Luca D'Orsi
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | | | - Raffaele Capasso
- Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy
| | - Elvira De Leonibus
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.,Institute of Genetics and Biophysics (IGB), National Research Council, Naples, Italy
| | - Luciano De Petrocellis
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy
| | - Vincenzo Di Marzo
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli (NA), Italy
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4
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Cui C, Chang Y, Zhang X, Choi S, Tran H, Penmetsa KV, Viswanadha S, Fu L, Pan Z. Targeting Orai1-mediated store-operated calcium entry by RP4010 for anti-tumor activity in esophagus squamous cell carcinoma. Cancer Lett 2018; 432:169-179. [PMID: 29908962 DOI: 10.1016/j.canlet.2018.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/31/2018] [Accepted: 06/01/2018] [Indexed: 12/20/2022]
Abstract
Esophageal cancer (EC) is the 6th leading cause of cancer mortality worldwide with poor prognosis, hence more effective chemotherapeutic drugs for this deadly disease are urgently needed. We previously reported that high expression of Orai1, a store-operated Ca2+entry (SOCE) channel, was associated with poor survival rate in EC patients and Orai1-mediated intracellular Ca2+ oscillations regulated cancer cell proliferation. Previous studies suggested that Orai1-mediated SOCE is a promising target for EC chemotherapy. Here, we evaluated the anti-cancer effect of a novel SOCE inhibitor, RP4010, in cultured EC cells and xenograft models. Compared to other previously reported SOCE channel inhibitors, RP4010 is more potent in blocking SOCE and inhibiting cell proliferation in EC and other cancer cells. Treatment with RP4010 resulted in reduction of intracellular Ca2+ oscillations, caused cell cycle arrest at G0/G1 phase in vitro, decreased nuclear translocation of nuclear factor kappa B (NF-κB) in vivo and in vitro, and inhibited tumor growth in vivo. Taken together, data demonstrated the therapeutic potential of RP4010 in EC patients via inhibition of SOCE-mediated intracellular Ca2+ signaling.
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Affiliation(s)
- Chaochu Cui
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China; College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, USA; Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, Henan, China
| | - Yan Chang
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, USA
| | - Xiaoli Zhang
- Comprehensive Cancer Center, The Ohio State University Medical Center, Columbus, OH, USA
| | - Sangyong Choi
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, USA
| | - Henry Tran
- Department of Biology, University of Texas at Arlington, Arlington, TX, USA
| | | | | | - Liwu Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
| | - Zui Pan
- College of Nursing and Health Innovation, University of Texas at Arlington, Arlington, TX, USA.
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5
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Choi S, Cui C, Luo Y, Kim SH, Ko JK, Huo X, Ma J, Fu LW, Souza RF, Korichneva I, Pan Z. Selective inhibitory effects of zinc on cell proliferation in esophageal squamous cell carcinoma through Orai1. FASEB J 2017; 32:404-416. [PMID: 28928244 DOI: 10.1096/fj.201700227rrr] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/05/2017] [Indexed: 12/15/2022]
Abstract
Zinc, an essential micronutrient, has a cancer preventive role. Zinc deficiency has been shown to contribute to the progression of esophageal cancer. Orai1, a store-operated Ca2+ entry (SOCE) channel, was previously reported to be highly expressed in tumor tissues removed from patients with esophageal squamous cell carcinoma (ESCC) with poor prognosis, and elevation of its expression contributes to both hyperactive intracellular Ca2+ oscillations and fast cell proliferation in human ESCC cells. However, the molecular basis of cancer preventive functions of zinc and its association with Orai1-mediated cell proliferation remains unknown. The present study shows that zinc supplementation significantly inhibits proliferation of ESCC cell lines and that the effect of zinc is reversible with N,N,N',N'-tetrakis (2-pyridylmethyl) ethylenediamine, a specific Zn2+ chelator, whereas nontumorigenic esophageal epithelial cells are significantly less sensitive to zinc treatment. Fluorescence live cell imaging revealed that extracellular Zn2+ exerted rapid inhibitory effects on Orai1-mediated SOCE and on intracellular Ca2+ oscillations in the ESCC cells. Knockdown of Orai1 or expression of Orai1 mutants with compromised zinc binding significantly diminished sensitivity of the cancer cells to zinc treatment in both SOCE and cell proliferation analyses. These data suggest that zinc may inhibit cell proliferation of esophageal cancer cells through Orai1-mediated intracellular Ca2+ oscillations and reveal a possible molecular basis for zinc-induced cancer prevention and Orai1-SOCE signaling pathway in cancer cells.-Choi, S., Cui, C., Luo, Y., Kim, S.-H., Ko, J.-K., Huo, X., Ma, J., Fu, L.-W., Souza, R. F., Korichneva, I., Pan, Z. Selective inhibitory effects of zinc on cell proliferation in esophageal squamous cell carcinoma through Orai1.
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Affiliation(s)
- Sangyong Choi
- College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, Texas, USA.,Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Chaochu Cui
- College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, Texas, USA.,Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yanhong Luo
- Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,Department of Endocrinology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Sun-Hee Kim
- Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | | | - Xiaofang Huo
- Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, USA
| | - Jianjie Ma
- Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA.,Department of Surgery, Ohio State University Wexner Medical Center, Columbus, Ohio, USA; and
| | - Li-Wu Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Rhonda F Souza
- Center for Esophageal Diseases, Baylor University Medical Center and Center for Esophageal Research, Baylor Scott and White Research Institute, Dallas, Texas, USA
| | - Irina Korichneva
- Department of Pharmacology, University of Picardie Jules Verne, Amiens, France
| | - Zui Pan
- College of Nursing and Health Innovation, The University of Texas at Arlington, Arlington, Texas, USA; .,Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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6
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Mitsugumin 53 regulates extracellular Ca 2+ entry and intracellular Ca 2+ release via Orai1 and RyR1 in skeletal muscle. Sci Rep 2016; 6:36909. [PMID: 27841305 PMCID: PMC5107933 DOI: 10.1038/srep36909] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/24/2016] [Indexed: 12/19/2022] Open
Abstract
Mitsugumin 53 (MG53) participates in the membrane repair of various cells, and skeletal muscle is the major tissue that expresses MG53. Except for the regulatory effects of MG53 on SERCA1a, the role(s) of MG53 in the unique functions of skeletal muscle such as muscle contraction have not been well examined. Here, a new MG53-interacting protein, Orai1, is identified in skeletal muscle. To examine the functional relevance of the MG53-Orai1 interaction, MG53 was over-expressed in mouse primary or C2C12 skeletal myotubes and the functional properties of the myotubes were examined using cell physiological and biochemical approaches. The PRY-SPRY region of MG53 binds to Orai1, and MG53 and Orai1 are co-localized in the plasma membrane of skeletal myotubes. MG53-Orai1 interaction enhances extracellular Ca2+ entry via a store-operated Ca2+ entry (SOCE) mechanism in skeletal myotubes. Interestingly, skeletal myotubes over-expressing MG53 or PRY-SPRY display a reduced intracellular Ca2+ release in response to K+-membrane depolarization or caffeine stimulation, suggesting a reduction in RyR1 channel activity. Expressions of TRPC3, TRPC4, and calmodulin 1 are increased in the myotubes, and MG53 directly binds to TRPC3, which suggests a possibility that TRPC3 also participates in the enhanced extracellular Ca2+ entry. Thus, MG53 could participate in regulating extracellular Ca2+ entry via Orai1 during SOCE and also intracellular Ca2+ release via RyR1 during skeletal muscle contraction.
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7
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Hao Y, Chow AW, Yip WC, Li CH, Wan TF, Tong BC, Cheung KH, Chan WY, Chen Y, Cheng CH, Ko WH. G protein-coupled estrogen receptor inhibits the P2Y receptor-mediated Ca(2+) signaling pathway in human airway epithelia. Pflugers Arch 2016; 468:1489-503. [PMID: 27271044 PMCID: PMC4951515 DOI: 10.1007/s00424-016-1840-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 05/11/2016] [Accepted: 05/22/2016] [Indexed: 12/18/2022]
Abstract
P2Y receptor activation causes the release of inflammatory cytokines in the bronchial epithelium, whereas G protein-coupled estrogen receptor (GPER), a novel estrogen (E2) receptor, may play an anti-inflammatory role in this process. We investigated the cellular mechanisms underlying the inhibitory effect of GPER activation on the P2Y receptor-mediated Ca2+ signaling pathway and cytokine production in airway epithelia. Expression of GPER in primary human bronchial epithelial (HBE) or 16HBE14o- cells was confirmed on both the mRNA and protein levels. Stimulation of HBE or 16HBE14o- cells with E2 or G1, a specific agonist of GPER, attenuated the nucleotide-evoked increases in [Ca2+]i, whereas this effect was reversed by G15, a GPER-specific antagonist. G1 inhibited the secretion of two proinflammatory cytokines, interleukin (IL)-6 and IL-8, in cells stimulated by adenosine 5′-(γ-thio)triphosphate (ATPγS). G1 stimulated a real-time increase in cAMP levels in 16HBE14o- cells, which could be inhibited by adenylyl cyclase inhibitors. The inhibitory effects of E2 or G1 on P2Y receptor-induced increases in Ca2+ were reversed by treating the cells with a protein kinase A (PKA) inhibitor. These results demonstrated that the inhibitory effects of G1 or E2 on P2Y receptor-mediated Ca2+ mobilization and cytokine secretion were due to GPER-mediated activation of a cAMP-dependent PKA pathway. This study has reported, for the first time, the expression and function of GPER as an anti-inflammatory component in human bronchial epithelia, which may mediate through its opposing effects on the pro‐inflammatory pathway activated by the P2Y receptors in inflamed airway epithelia.
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Affiliation(s)
- Yuan Hao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Alison W Chow
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Wallace C Yip
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Chi H Li
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Tai F Wan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Benjamin C Tong
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - King H Cheung
- School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong
| | - Wood Y Chan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Yangchao Chen
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Christopher H Cheng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong.
| | - Wing H Ko
- School of Biomedical Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong.
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Chakraborty S, Ghosh S, Banerjee B, Santra A, Adhikary A, Misra AK, Sen PC. Phemindole, a Synthetic Di-indole Derivative Maneuvers the Store Operated Calcium Entry (SOCE) to Induce Potent Anti-Carcinogenic Activity in Human Triple Negative Breast Cancer Cells. Front Pharmacol 2016; 7:114. [PMID: 27199756 PMCID: PMC4854895 DOI: 10.3389/fphar.2016.00114] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/18/2016] [Indexed: 12/11/2022] Open
Abstract
Triple-negative breast cancer (TNBC), is a specific subtype of epithelial breast tumors that are immuno-histochemically negative for the protein expression of the estrogen receptor (ER), the progesterone receptor (PR) and lack over expression/gene amplification of HER2. This subtype of breast cancers is highly metastatic, shows poor prognosis and hence represents an important clinical challenge to researchers worldwide. Thus alternative approaches of drug development for TNBC have gained utmost importance in the present times. Dietary indole and its derivatives have gained prominence as anti-cancer agents and new therapeutic approaches are being developed to target them against TNBC. But a major drawback with 3, 3′di Indolyl methane (DIM) is their poor bioavailability and high effective concentration against TNBC. However, the Aryl methyl ring substituted analogs of DIM display interesting anti-cancer activity in breast cancer cells. In the current study we report the synthesis of a novel synthetic aryl methyl ring substituted analog of DIM, named as Phemindole as an effective anti-tumor agent against TNBC cells. Furthermore, we enumerated that Phemindole caused reactive oxygen species mediated mitochondrial-dependent apoptosis in MDAMB-231 cells. Furthermore, Phemindole mediated Store Operated Calcium Entry (SOCE) retardation favored inactivation of STIM1 and henceforth activated ER stress to induce apoptosis in TNBC cells. Simultaneously, Phemindole was also found to restrict the in vitro cell migration through its anti mitotic property and pFAK regulation. Studies extended to ex ovo and in vivo mice models further validated the efficacy of Phemindole. Thus our results cumulatively propose Phemindole as a new chemotherapeutic regime which might be effective to target the deadly aspects of the TNBC.
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Affiliation(s)
| | | | | | - Abhishek Santra
- Division of Molecular Medicine, Bose Institute Kolkata, India
| | - Arghya Adhikary
- Centre for Research in Nanoscience and Nanotechnology, University of Calcutta Kolkata, India
| | - Anup K Misra
- Division of Molecular Medicine, Bose Institute Kolkata, India
| | - Parimal C Sen
- Division of Molecular Medicine, Bose Institute Kolkata, India
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9
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Inhibition of SOCs Attenuates Acute Lung Injury Induced by Severe Acute Pancreatitis in Rats and PMVECs Injury Induced by Lipopolysaccharide. Inflammation 2016; 39:1049-58. [DOI: 10.1007/s10753-016-0335-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Nani A, Belarbi M, Ksouri-Megdiche W, Abdoul-Azize S, Benammar C, Ghiringhelli F, Hichami A, Khan NA. Effects of polyphenols and lipids from Pennisetum glaucum grains on T-cell activation: modulation of Ca(2+) and ERK1/ERK2 signaling. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:426. [PMID: 26627682 PMCID: PMC4667445 DOI: 10.1186/s12906-015-0946-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 11/21/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Pearl millet (PM), i.e., Pennisetum glaucum, is widely grown in Africa and known for its anti-oxidant and anti-hyperlipidemic properties. METHODS The P. glaucum grains were obtained from the region of Ouled Aïssa (South of Algeria). We assessed the effects of phenolic compounds and lipids, extracted from seeds of P. glaucum, on rat lymphocyte proliferation, activated by phorbol 12-myristate 13-acetate and ionomycin. In order to explore signaling pathway, triggered by these compounds, we assessed interleukin-2 (IL-2) mRNA expression and extracellular signal-regulated kinase-1/2 (ERK1/ERK2) phosphorylation. Finally, we determined increases in free intracellular Ca(2+) concentrations, [Ca(2+)]i, by employing Fura-2/AM in rat lymphocytes. RESULTS The composition of P. glaucum grains in polyphenols was estimated to be 1660 µg gallic acid equivalents (GAE)/g. Lipids represented 4.5 %, and more than 72% of the fatty acids belonged to unsaturated family. Our investigation showed that both lipid and phenolic compounds inhibited mitogen-induced T-cell proliferation. Compared with phenolic compounds, lipids exerted weaker effects on ERK-1/ERK2 phosphorylation and Ca(2+) signaling in mitogen-activated T-cells. CONCLUSION We conclude that the immunomodulatory effects of P. glaucum could be contributed by its phenolic and lipid contents.
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Affiliation(s)
- Abdelhafid Nani
- University of Adrar, National Road n°06, Adrar, 01000, Algeria
- Laboratory of Natural Products, Abou-bekr Belkaid University, Tlemcen, 13000, Algeria
- INSERM U866, Université de Bourgogne, 21000, Dijon, France
| | - Meriem Belarbi
- Laboratory of Natural Products, Abou-bekr Belkaid University, Tlemcen, 13000, Algeria
| | - Wided Ksouri-Megdiche
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj-Cédria, Hammam-lif, 2050, Tunisia
| | | | - Chahid Benammar
- Laboratory of Natural Products, Abou-bekr Belkaid University, Tlemcen, 13000, Algeria
| | | | - Aziz Hichami
- INSERM U866, Université de Bourgogne, 21000, Dijon, France
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Zhu H, Zhang H, Jin F, Fang M, Huang M, Yang CS, Chen T, Fu L, Pan Z. Elevated Orai1 expression mediates tumor-promoting intracellular Ca2+ oscillations in human esophageal squamous cell carcinoma. Oncotarget 2015; 5:3455-71. [PMID: 24797725 PMCID: PMC4116495 DOI: 10.18632/oncotarget.1903] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Effective treatment as well as prognostic biomarker for malignant esophageal squamous cell carcinoma (ESCC) is urgently needed. The present study was aimed at identifying oncogenic genes involving dysregulated intracellular Ca2+ signaling, which is known to function importantly in cellular proliferation and migration. Tumors from patients with ESCC were found to display elevated expression of Orai1, a store-operated Ca2+ entry (SOCE) channel, and the high expression of Orai1 was associated with poor overall and recurrence-free survival. In contrast to the quiescent nature of non-tumorigenic epithelial cells, human ESCC cells exhibited strikingly hyperactive in intracellular Ca2+ oscillations, which were sensitive to treatments with Orai1 channel blockers and to orai1 silencing. Moreover, pharmacologic inhibition of Orai1 activity or reduction of Orai1 expression suppressed proliferation and migration of ESCC in vitro and slowed tumor formation and growth in in vivo xenografted mice. Combined, these findings provide the first evidence to imply Orai1 as a novel biomarker for ESCC prognostic stratification and also highlight Orai1-mediated Ca2+ signaling pathway as a potential target for treatment of this deadly disease.
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Affiliation(s)
- Hua Zhu
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH; Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH
| | | | | | | | | | | | | | - Liwu Fu
- Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Zui Pan
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH; Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH
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12
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Abstract
Ca(2+) release from intracellular stores and influx from extracellular reservoir regulate a wide range of physiological functions including muscle contraction and rhythmic heartbeat. One of the most ubiquitous pathways involved in controlled Ca(2+) influx into cells is store-operated Ca(2+) entry (SOCE), which is activated by the reduction of Ca(2+) concentration in the lumen of endoplasmic or sarcoplasmic reticulum (ER/SR). Although SOCE is pronounced in non-excitable cells, accumulating evidences highlight its presence and important roles in skeletal muscle and heart. Recent discovery of STIM proteins as ER/SR Ca(2+) sensors and Orai proteins as Ca(2+) channel pore forming unit expedited the mechanistic understanding of this pathway. This review focuses on current advances of SOCE components, regulation and physiologic and pathophysiologic roles in muscles. The specific property and the dysfunction of this pathway in muscle diseases, and new directions for future research in this rapidly growing field are discussed.
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Affiliation(s)
- Zui Pan
- Department of Internal Medicine-Cardiovascular Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Marco Brotto
- Muscle Biology Research Group-MUBIG, Schools of Nursing & Medicine, University of Missouri-Kansas City, MO, USA
| | - Jianjie Ma
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA; Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, USA
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Extracellular Membrane Vesicles Derived from 143B Osteosarcoma Cells Contain Pro-Osteoclastogenic Cargo: A Novel Communication Mechanism in Osteosarcoma Bone Microenvironment. Transl Oncol 2014; 7:331-40. [PMID: 25180057 PMCID: PMC4145399 DOI: 10.1016/j.tranon.2014.04.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 01/21/2014] [Accepted: 03/03/2014] [Indexed: 12/21/2022] Open
Abstract
The bone microenvironment (BME) is the main hub of all skeletal related pathological events in osteosarcoma leading to tumor induced bone destruction, and decreasing overall bone quality and bone strength. The role of extra-cellular membrane vesicles (EMVs) as mediators of intercellular communication in modulating osteosarcoma-BME is unknown, and needs to be investigated. It is our hypothesis that osteosarcoma-EMVs contain pro-osteoclastogenic cargo which increases osteoclastic activity, and dysregulated bone remodeling in the osteosarcoma-BME. In this study, EMVs were isolated from the conditioned media of 143B and HOS human osteosarcoma cell cultures using differential ultracentrifugation. Nano-particle tracking analysis determined EMVs in the size range of 50-200 nm in diameter. The EMV yield from 143B cells was relatively higher compared to HOS cells. Transmission electron microscopy confirmed the ultrastructure of 143B-EMVs and detected multivesicular bodies. Biochemical characterization of 143B-EMVs detected the expression of bioactive pro-osteoclastic cargo including matrix metalloproteinases-1 and -13 (MMP-1, -13), transforming growth factor-β (TGF-β), CD-9, and receptor activator of nuclear factor kappa-β ligand (RANKL). Detection of a protein signature that is uniquely pro-osteoclastic in 143B-EMVs is a novel finding, and is significant as EMVs represent an interesting mechanism for potentially mediating bone destruction in the osteosarcoma-BME. This study further demonstrates that 143B cells actively mobilize calcium in the presence of ionomycin, and forskolin, and induce cytoskeleton rearrangements leading to vesicular biogenesis. In conclusion, this study demonstrates that 143B osteosarcoma cells generate EMVs mainly by mechanisms involving increased intracellular calcium or cAMP levels, and contain pro-osteoclastic cargo.
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Bolaños P, Guillen A, Gámez A, Caputo C. Quantifying SOCE fluorescence measurements in mammalian muscle fibres. The effects of ryanodine and osmotic shocks. J Muscle Res Cell Motil 2013; 34:379-93. [PMID: 24129906 DOI: 10.1007/s10974-013-9360-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 09/18/2013] [Indexed: 11/28/2022]
Abstract
We have quantified Ca(2+) entry through store operated calcium channels in mice muscle fibres, measuring the rates of change of myoplasmic [Ca(2+)], d[Ca(2+)](myo)/dt, and of Ca(2+) removal, d[Ca(2+)](Removal)/dt, turning store operated calcium entry (SOCE) ON, and OFF, by switching on or off external Ca(2+). In depleted fibres, poisoned with 10 μM cyclopiazonic acid SOCE influx was about 3 μM/s. Ryanodine (50 μM) caused a robust, nifedipine (50 μM) independent, increase in SOCE activation to 8.6 μM/s. Decreasing medium osmolarity from 300 to 220 mOsm/L, decreased SOCE to 0.9 μM/s, while increasing osmolarity from 220 to 400 mOsm/L potentiated SOCE to 43.6 μM/s. Ryanodine inhibited the effects of hypotonicity. Experiments using 2-aminoethoxydiphenyl borate, nifedipine, or Mn(2+) quenching, strongly suggest that the increased [Ca(2+)](myo) by ryanodine or hypertonic shock is mediated by potentiated SOCE activation. The Ca(2+) response decay, quantified by d[Ca(2+)](Removal)/dt, indicates a robust residual Ca(2+) removal mechanism in sarco-endoplasmic reticulum calcium ATPase poisoned fibres. SOCE high sensitivity to osmotic shocks, or to ryanodine receptor (RyR) binding, suggests its high dependency on the structural relationship between its molecular constituents, Orai1 and stromal interaction molecule and the sarcoplasmic reticulum and plasma membranes, in the triadic junctional region, where RyRs, are conspicuously present. This study demonstrates that SOCE machinery is highly sensitive to structural changes caused by binding of an agonist to its receptor or by imposed osmotical volume changes.
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Affiliation(s)
- Pura Bolaños
- Laboratorio de Fisiología Celular, Centro de Biofísica y Bioquímica, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas, Venezuela,
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