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Qiao S, Wu F, Wang H. Genetic and immune identification and functional analysis of TRPM8 as a potential biomarker for pancreatic adenocarcinoma proliferation. Cancer Rep (Hoboken) 2024; 7:e2108. [PMID: 38837874 PMCID: PMC11150080 DOI: 10.1002/cnr2.2108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/26/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Pancreatic adenocarcinoma (PAAD), a member of highly lethal malignant tumors, has a poor outcome and extremely poor prognosis. The transient receptor potential (TRP) superfamily, a group of nonselective cation channels, is capable of influencing cellular functions by regulating calcium homeostasis. In addition, it has been shown that TRP channels can also affect various cellular phenotypes by regulating gene transcription levels and are involved in the development of a variety of malignant tumors. AIMS In order to find new therapeutic targets and biomarkers to improve the clinical prognosis of pancreatic cancer, we performed genetic and immunological characterization of TRP channels in PAAD, as well as related functional and prognostic analyses. METHODS AND RESULTS We investigated the expression, genetic alterations, methylation levels, and immune infiltration levels of TRP channels in PAAD, and further also analyzed the function of TRP channels in PAAD and their prognostic value for PAAD patients. Our results suggest that TRPM8 may contribute to tumor proliferation by controlling the PI3K-AKT-mTOR signaling pathway in PAAD. CONCLUSION After careful evaluation of the accumulated data, we concluded that TRPM8 has potential as a prognostic indicator and prospective therapeutic target in PAAD.
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Affiliation(s)
- Sen Qiao
- Assisted Reproduction CenterNorthwest Women's and Children's HospitalXi'anChina
| | - Fengming Wu
- School of MedicineSoutheast UniversityNanjingJiangsuChina
| | - Hongmei Wang
- School of MedicineSoutheast UniversityNanjingJiangsuChina
- Shaanxi University of Chinese MedicineXianyangChina
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2
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Wang Y, Zhang Y, Ouyang J, Yi H, Wang S, Liu D, Dai Y, Song K, Pei W, Hong Z, Chen L, Zhang W, Liu Z, Mcleod HL, He Y. TRPV1 inhibition suppresses non-small cell lung cancer progression by inhibiting tumour growth and enhancing the immune response. Cell Oncol (Dordr) 2024; 47:779-791. [PMID: 37902941 DOI: 10.1007/s13402-023-00894-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 11/01/2023] Open
Abstract
PURPOSE TRPV1 is a nonselective Ca2+ channel protein that is widely expressed and plays an important role during the occurrence and development of many cancers. Activation of TRPV1 channels can affect tumour progression by regulating proliferation, apoptosis and migration. Some studies have also shown that activating TRPV1 can affect tumour progression by modulating tumour immunity. However, the effects of TRPV1 on the development of non-small cell lung cancer (NSCLC) have not been explored clearly. METHOD The Cancer Genome Atlas (TCGA) database and spatial transcriptomics datasets from 10 × Genomics were used to analyze TRPV1 expression in various tumour tissues. Cell proliferation and apoptosis were examined by cell counting kit 8 (CCK8), colony formation, and flow cytometry. Immunohistochemistry, qPCR, and western blotting were used to determine the mRNA and protein expression levels of TRPV1 and other related molecules. Tumour xenografts in BALB/C and C57BL/6J mice were used to determine the effects of TRPV1 on NSCLC development in vivo. Neurotransmitter content was examined by LC-MS/MS, ELISA and Immunohistochemistry. Immune cell infiltration was assessed by flow cytometry. RESULTS In this study, we found that TRPV1 expression was significantly upregulated in NSCLC and that patients with high TRPV1 expression had a poor prognosis. TRPV1 knockdown can significantly inhibit NSCLC proliferation and induce cell apoptosis through Ca2+-IGF1R signaling. In addition, TRPV1 knockdown resulted in increased infiltration of CD4+ T cells, CD8+ T cells, GZMB+CD8+ T cells and DCs and decreased infiltration of immunosuppressive MDSCs in NSCLC. In addition, TRPV1 knockout effectively decreased the expression of M2 macrophage markers CD163 and increased the expression of M1-associated, costimulatory markers CD86. Knockdown or knockout of TRPV1 significantly inhibit tumour growth and promoted an antitumour immune response through supressing γ-aminobutyric acid (GABA) secretion in NSCLC. CONCLUSION Our study suggests that TRPV1 acts as a tumour promoter in NSCLC, mediating pro-proliferative and anti-apoptotic effects on NSCLC through IGF1R signaling and regulating GABA release to affect the tumour immune response.
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Affiliation(s)
- Yang Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Yu Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Jing Ouyang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Hanying Yi
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Shiyu Wang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Dongbo Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Yingying Dai
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
| | - Kun Song
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, 3 Hunan, Changsha, China
| | - Wenwu Pei
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, 3 Hunan, Changsha, China
| | - Ziyang Hong
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, 3 Hunan, Changsha, China
| | - Ling Chen
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, 3 Hunan, Changsha, China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhaoqian Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Howard L Mcleod
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China
- Center for Precision Medicine, Utah Tech University, St George, UT, USA
| | - Yijing He
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Xiang Ya Road 110, Changsha, 410000, Hunan, China.
- Hunan Key Laboratory of Pharmacogenetics, Central South University, Changsha, P. R. China.
- Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Central South University, Changsha, P. R. China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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3
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Yan Z, Huang H, Wang Q, Kong Y, Liu X. Function and mechanism of action of the TRPV1 channel in the development of triple-negative breast cancer. Acta Biochim Biophys Sin (Shanghai) 2024; 56:957-962. [PMID: 38734935 PMCID: PMC11322878 DOI: 10.3724/abbs.2024068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 03/25/2024] [Indexed: 05/13/2024] Open
Abstract
Transient receptor potential channel subfamily vanilloid 1 (TRPV1) is a member of the transient receptor potential family of nonselective cationic transmembrane channel proteins that are involved in the regulation of calcium homeostasis. It is expressed in various tumor types and has been implicated in the regulation of cancer growth, metastasis, apoptosis, and cancer-related pain. TRPV1 is highly expressed in triple-negative breast cancer (TNBC), and both its agonists and antagonists may exert anti-cancer effects. In this review, we provide an overview of the effect of TRPV1 on TNBC development and its influence on immunotherapy in an attempt to facilitate the development of future treatment strategies.
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Affiliation(s)
- Ziling Yan
- />Pathology Departmentthe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen518035China
| | - Haihui Huang
- />Pathology Departmentthe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen518035China
| | - Qianqian Wang
- />Pathology Departmentthe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen518035China
| | - Yanjie Kong
- />Pathology Departmentthe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen518035China
| | - Xia Liu
- />Pathology Departmentthe First Affiliated Hospital of Shenzhen UniversityShenzhen Second People’s HospitalShenzhen518035China
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4
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Sapino S, Chindamo G, Chirio D, Morel S, Peira E, Vercelli C, Gallarate M. Nanocarriers in Veterinary Medicine: A Challenge for Improving Osteosarcoma Conventional Treatments. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4501. [PMID: 36558354 PMCID: PMC9785518 DOI: 10.3390/nano12244501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
In recent years, several nanocarrier-based drug delivery systems, such as polymeric nanoparticles, solid lipid nanoparticles, metallic nanoparticles, liposomes, and others, have been explored to target and treat a wide variety of diseases. Their employment has brought many benefits, not only to human medicine but also to veterinary medicine, albeit at a slower rate. Soon, the use of nanocarriers could revolutionize the animal health sector, and many veterinary therapies will be more effective as a result. The purpose of this review is to offer an overview of the main applications of nanocarriers in the veterinary field, from supplements for animal health and reproduction to nanovaccines and nanotherapies. Among the major pathologies that can affect animals, special attention is given to canine osteosarcoma (OSA): a comparison with human OSA is provided and the main treatment options are reviewed emphasizing the benefits that nanocarriers could bring in the treatment of this widespread disease.
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Affiliation(s)
- Simona Sapino
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, 10125 Torino, Italy
| | - Giulia Chindamo
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, 10125 Torino, Italy
| | - Daniela Chirio
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, 10125 Torino, Italy
| | - Silvia Morel
- Dipartimento di Scienze del Farmaco, Università del Piemonte Orientale A. Avogadro, 28100 Novara, Italy
| | - Elena Peira
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, 10125 Torino, Italy
| | - Cristina Vercelli
- Dipartimento di Scienze Veterinarie, Università degli Studi di Torino, 10095 Grugliasco, Italy
| | - Marina Gallarate
- Dipartimento di Scienza e Tecnologia del Farmaco, Università degli Studi di Torino, 10125 Torino, Italy
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Merritt JC, Richbart SD, Moles EG, Cox AJ, Brown KC, Miles SL, Finch PT, Hess JA, Tirona MT, Valentovic MA, Dasgupta P. Anti-cancer activity of sustained release capsaicin formulations. Pharmacol Ther 2022; 238:108177. [PMID: 35351463 PMCID: PMC9510151 DOI: 10.1016/j.pharmthera.2022.108177] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022]
Abstract
Capsaicin (trans-8-methyl-N-vanillyl-6-noneamide) is a hydrophobic, lipophilic vanilloid phytochemical abundantly found in chili peppers and pepper extracts. Several convergent studies show that capsaicin displays robust cancer activity, suppressing the growth, angiogenesis and metastasis of several human cancers. Despite its potent cancer-suppressing activity, the clinical applications of capsaicin as a viable anti-cancer drug have remained problematic due to its poor bioavailability and aqueous solubility properties. In addition, the administration of capsaicin is associated with adverse side effects like gastrointestinal cramps, stomach pain, nausea and diarrhea and vomiting. All these hurdles may be circumvented by encapsulation of capsaicin in sustained release drug delivery systems. Most of the capsaicin-based the sustained release drugs have been tested for their pain-relieving activity. Only a few of these formulations have been investigated as anti-cancer agents. The present review describes the physicochemical properties, bioavailability, and anti-cancer activity of capsaicin-sustained release agents. The asset of such continuous release capsaicin formulations is that they display better solubility, stability, bioavailability, and growth-suppressive activity than the free drug. The encapsulation of capsaicin in sustained release carriers minimizes the adverse side effects of capsaicin. In summary, these capsaicin-based sustained release drug delivery systems have the potential to function as novel chemotherapies, unique diagnostic imaging probes and innovative chemosensitization agents in human cancers.
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Affiliation(s)
- Justin C Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Stephen D Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Emily G Moles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Ashley J Cox
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Paul T Finch
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, WV 25755, United States
| | - Joshua A Hess
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, WV 25755, United States
| | - Maria T Tirona
- Department of Hematology-Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, WV 25755, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States.
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6
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Doxorubicin-Loaded Lipid Nanoparticles Coated with Calcium Phosphate as a Potential Tool in Human and Canine Osteosarcoma Therapy. Pharmaceutics 2022; 14:pharmaceutics14071362. [PMID: 35890258 PMCID: PMC9322757 DOI: 10.3390/pharmaceutics14071362] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 12/04/2022] Open
Abstract
Osteosarcoma (OSA) is the most frequently diagnosed primary malignant bone tumor in humans and dogs. In both species, standard chemotherapy can be limited by multidrug resistance of neoplastic cells, which prevents intracellular accumulation of cytotoxic drugs, resulting in chemotherapy failure. In this study, a lipophilic ester of doxorubicin (C12DOXO) was loaded into nanoparticles (NPs) using the “cold microemulsion dilution” method. The resulting NPs were then coated with calcium phosphate (CaP) in two different ways to have calcium or phosphate ions externally exposed on the surface. These systems were characterized by determining mean diameter, zeta potential, and drug entrapment efficiency; afterward, they were tested on human and canine OSA cells to study the role that the coating might play in increasing both drug uptake into tumor cells and cytotoxicity. Mean diameter of the developed NPs was in the 200–300 nm range, zeta potential depended on the coating type, and C12DOXO entrapment efficiency was in the 60–75% range. Results of studies on human and canine OSA cells were very similar and showed an increase in drug uptake and cytotoxicity for CaP-coated NPs, especially when calcium ions were externally exposed. Therefore, applications in both human and veterinary medicine can be planned in the near future.
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7
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TRPV1 Receptor Identification in Bovine and Canine Mitral Valvular Interstitial Cells. Vet Sci 2021; 8:vetsci8090183. [PMID: 34564577 PMCID: PMC8473199 DOI: 10.3390/vetsci8090183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/24/2021] [Accepted: 09/01/2021] [Indexed: 11/19/2022] Open
Abstract
Myxomatous mitral valve degeneration (MMVD) is the most common acquired cardiac disease in canine species, and valvular interstitial cells (VICs) are considered the main responsible for the development of this pathology. The scientific interest is focused on isolating and characterizing these cells. The aims of the present study were to verify a novel VICs mechanical isolation method and to characterize isolated cells using immunocytochemistry and immunofluorescence, with parallel histological and immunohistochemistry assays on bovine and canine healthy and MMVD mitral valves. Antibodies against vimentin (VIM), smooth muscle actin (SMA), von Willebrand (vW) factor, Transforming Growth Factor (TGF) β1, and Transient Receptor Potential Vanilloid 1 (TRPV1) were used. The isolation method was considered reliable and able to isolate only VICs. The different assays demonstrated a different expression of SMA in healthy and MMVD mitral valves, and TRPV1 was isolated for the first time from bovine and canine VICs and the correspondent mitral valve leaflets. The novelties of the present study are the new isolation method, that may allow correlations between laboratory and clinical conditions, and the identification of TRPV1, which will lead to further investigations to understand its function and possible role in the etiology of MMVD and to the design of new therapeutic strategies.
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8
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Güzel KGU, Nazıroğlu M, Ceyhan D. Bisphenol A-Induced Cell Proliferation and Mitochondrial Oxidative Stress Are Diminished via Modulation of TRPV1 Channel in Estrogen Positive Breast Cancer Cell by Selenium Treatment. Biol Trace Elem Res 2020; 198:118-130. [PMID: 32040846 DOI: 10.1007/s12011-020-02057-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/27/2020] [Indexed: 12/20/2022]
Abstract
Cancer cell proliferation and apoptosis are induced by overload Ca2+ entry. Transient receptor potential vanilloid 1 (TRPV1) as a Ca2+ permeable cation channel is activated by capsaicin and reactive oxygen species (ROS), although it is blocked by capsazepine and sodium selenite (Na-Se). Bisphenol A (BPA) induces estrogenic action and further stimulates the proliferation of estrogen receptor positive MCF-7 cell through excessive production ROS and Ca2+ influx. However, whether or not Na-Se can influence BPA-induced oxidative stress and apoptosis through modulation of TRPV1 in breast cancer cells has not drawn much attention. The MCF-7 and MDA-MB-231 breast cancer cells were divided into four treatment groups as control, Na-Se (1 μM for 2 h), and BPA (0.1 mM for 24 h) and BPA + Na-Se. The Na-Se reduced BPA-induced increase of cell number, mitochondria oxidative stress, and TRPV1 channel activity modulation of MCF-7 cells, which was proved by the suppression of cell viability, excessive ROS production, mitochondrial membrane depolarization, lipid peroxidation, early apoptosis (Annexin-V), late apoptosis (propidium iodide) and upregulation of reduced glutathione, glutathione peroxidase, and cell death (propidium iodide/Hoechst rate). The similar effects of Na-Se were observed in the MCF-7 cells by capsazepine treatment. However, the effects of BPA were not observed in the MDA-MB-231 breast cancer cells. In conclusion, cell proliferative and oxidant effects of BPA were increased by activation of TRPV1, but its action on the values was decreased by the Na-Se treatment. The results may be a good set of preliminary data for designing animal studies on estrogenic effect of bisphenol A and antiestrogenic of selenium.
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Affiliation(s)
| | - Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, 32260, Isparta, Turkey.
- Drug Discovery and Development Research Group, BSN Health, Analysis and Innovation Ltd. Inc. Teknokent, Goller Bolgesi Teknokenti, Isparta, Turkey.
| | - Derya Ceyhan
- Department of Pedodontics, Faculty of Dentistry, Suleyman Demirel University, Isparta, Turkey
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Zhai K, Liskova A, Kubatka P, Büsselberg D. Calcium Entry through TRPV1: A Potential Target for the Regulation of Proliferation and Apoptosis in Cancerous and Healthy Cells. Int J Mol Sci 2020; 21:E4177. [PMID: 32545311 PMCID: PMC7312732 DOI: 10.3390/ijms21114177] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/05/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
Intracellular calcium (Ca2+) concentration ([Ca2+]i) is a key determinant of cell fate and is implicated in carcinogenesis. Membrane ion channels are structures through which ions enter or exit the cell, depending on the driving forces. The opening of transient receptor potential vanilloid 1 (TRPV1) ligand-gated ion channels facilitates transmembrane Ca2+ and Na+ entry, which modifies the delicate balance between apoptotic and proliferative signaling pathways. Proliferation is upregulated through two mechanisms: (1) ATP binding to the G-protein-coupled receptor P2Y2, commencing a kinase signaling cascade that activates the serine-threonine kinase Akt, and (2) the transactivation of the epidermal growth factor receptor (EGFR), leading to a series of protein signals that activate the extracellular signal-regulated kinases (ERK) 1/2. The TRPV1-apoptosis pathway involves Ca2+ influx and efflux between the cytosol, mitochondria, and endoplasmic reticulum (ER), the release of apoptosis-inducing factor (AIF) and cytochrome c from the mitochondria, caspase activation, and DNA fragmentation and condensation. While proliferative mechanisms are typically upregulated in cancerous tissues, shifting the balance to favor apoptosis could support anti-cancer therapies. TRPV1, through [Ca2+]i signaling, influences cancer cell fate; therefore, the modulation of the TRPV1-enforced proliferation-apoptosis balance is a promising avenue in developing anti-cancer therapies and overcoming cancer drug resistance. As such, this review characterizes and evaluates the role of TRPV1 in cell death and survival, in the interest of identifying mechanistic targets for drug discovery.
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Affiliation(s)
- Kevin Zhai
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, PO Box 24144, Qatar;
| | - Alena Liskova
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia;
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia;
| | - Dietrich Büsselberg
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha, PO Box 24144, Qatar;
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Basu P, Meza E, Bergel M, Maier C. Estrogenic, Antiestrogenic and Antiproliferative Activities of Euphorbia bicolor ( Euphorbiaceae) Latex Extracts and Its Phytochemicals. Nutrients 2019; 12:nu12010059. [PMID: 31881661 PMCID: PMC7019628 DOI: 10.3390/nu12010059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 12/13/2022] Open
Abstract
Estrogen receptor antagonists are effective in breast cancer treatment. However, the side effects of these treatments have led to a rise in searching for alternative therapies. The present study evaluated the estrogenic, antiestrogenic, and antiproliferative activities of Euphorbiabicolor (Euphorbiaceae), a plant native to south-central USA. Estrogenic and antiestrogenic activities of latex extract and its phytochemicals were evaluated with a steroid-regulated yeast system expressing the human estrogen receptor α and antiproliferative properties were assessed in the ER-positive MCF-7 and T47-D and triple-negative MDA-MB-231 and MDA-MB-469 breast carcinomas. Genistein and coumestrol identified in the latex extract induced higher estrogenic and antiestrogenic activities compared to diterpenes and flavonoids. The latex extract, resiniferatoxin (RTX) and rutin induced antiproliferative activities in all cell lines in a dose-dependent manner, but not in human normal primary dermal fibroblast cultures. A biphasic effect was observed with MDA-MB-468 breast carcinoma in which the latex extract at low concentrations increased and at high concentrations decreased cell proliferation. Treatments with latex extract in combination with RTX or rutin reduced even more the proliferation of MCF-7 breast carcinoma compared to the individual latex, RTX, and rutin treatments. E. bicolor latex phytochemicals could contribute to developing commercial therapeutic agents for breast cancer treatment.
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Affiliation(s)
| | | | - Michael Bergel
- Correspondence: (M.B.); (C.M.); Tel.: +1-940-898-2471 (M.B.); +1-940-898-2358 (C.M.)
| | - Camelia Maier
- Correspondence: (M.B.); (C.M.); Tel.: +1-940-898-2471 (M.B.); +1-940-898-2358 (C.M.)
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11
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Chiocchetti R, Galiazzo G, Tagliavia C, Stanzani A, Giancola F, Menchetti M, Militerno G, Bernardini C, Forni M, Mandrioli L. Cellular Distribution of Canonical and Putative Cannabinoid Receptors in Canine Cervical Dorsal Root Ganglia. Front Vet Sci 2019; 6:313. [PMID: 31608295 PMCID: PMC6761858 DOI: 10.3389/fvets.2019.00313] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/02/2019] [Indexed: 12/11/2022] Open
Abstract
Growing evidence indicates cannabinoid receptors as potential therapeutic targets for chronic pain. Consequently, there is an increasing interest in developing cannabinoid receptor agonists for treating human and veterinary pain. To better understand the actions of a drug, it is of paramount importance to know the cellular distribution of its specific receptor(s). The distribution of canonical and putative cannabinoid receptors in the peripheral and central nervous system of dogs is still in its infancy. In order to help fill this anatomical gap, the present ex vivo study has been designed to identify the cellular sites of cannabinoid and cannabinoid-related receptors in canine spinal ganglia. In particular, the cellular distribution of the cannabinoid receptors type 1 and 2 (CB1 and CB2) and putative cannabinoid receptors G protein-coupled receptor 55 (GPR55), nuclear peroxisome proliferator-activated receptor alpha (PPARα), and transient receptor potential vanilloid type 1 (TRPV1) have been immunohistochemically investigated in the C6–C8 cervical ganglia of dogs. About 50% of the neuronal population displayed weak to moderate CB1 receptor and TRPV1 immunoreactivity, while all of them were CB2-positive and nearly 40% also expressed GPR55 immunolabeling. Schwann cells, blood vessel smooth muscle cells, and pericyte-like cells all expressed CB2 receptor immunoreactivity, endothelial cell being also PPARα-positive. All the satellite glial cells (SGCs) displayed bright GPR55 receptor immunoreactivity. In half of the study dogs, SGCs were also PPARα-positive, and limited to older dogs displayed TRPV1 immunoreactivity. The present study may represent a morphological substrate to consider in order to develop therapeutic strategies against chronic pain.
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Affiliation(s)
- Roberto Chiocchetti
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Giorgia Galiazzo
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Claudio Tagliavia
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Agnese Stanzani
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Fiorella Giancola
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Marika Menchetti
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Gianfranco Militerno
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Chiara Bernardini
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Monica Forni
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Luciana Mandrioli
- Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
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12
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Selenium Enhances the Apoptotic Efficacy of Docetaxel Through Activation of TRPM2 Channel in DBTRG Glioblastoma Cells. Neurotox Res 2019; 35:797-808. [PMID: 30796690 DOI: 10.1007/s12640-019-0009-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 01/26/2019] [Accepted: 01/29/2019] [Indexed: 01/01/2023]
Abstract
The rate of mitosis of cancer cells is significantly higher than normal primary cells with increased metabolic needs, which in turn enhances the generation of reactive oxygen species (ROS) production. Higher ROS production is known to increase cancer cell dependence on ROS scavenging systems to counteract the increased ROS. Therapeutic options which selectively modulate the levels of intracellular ROS in cancers are likely candidates for drug discovery. Docetaxel (DTX) has demonstrated antitumor activity in preclinical and clinical studies. It is thought that DTX induces cell death through excessive ROS production and increased Ca2+ entry. The Ca2+ permeable TRPM2 channel is activated by ROS. Selenium (Se) has been previously used to stimulate apoptosis for the treatment of glioblastoma cells resistant to DTX. However, the potential mechanism(s) of the additive effect of DTX on TRPM2 channels in cancer cells remains unclear. The aim of this study was to evaluate the effect of combination therapy of DTX and Se on activation of TRPM2 in DBTRG glioblastoma cells. DBTRG cells were divided into four treatment groups: control, DTX (10 nM for 10 h), Se (1 μM for 10 h), and DTX+Se. Our study showed that apoptosis (Annexin V and propidium iodide), mitochondrial membrane depolarization (JC1), and ROS production levels were increased in DBTRG cells following treatment with Se and DTX respectively. Cell number and viability, and the levels of apoptosis, JC1, ROS, and [Ca2+]i, induced by DTX, were further increased following addition of Se. We also observed an additive increase in the activation of the NAD-dependent DNA repair enzyme poly (ADP-ribose) polymerase-1 (PARP-1) activity, which was accompanied by a decline in its essential substrate NAD+. As well, the Se- and DTX-induced increases in intracellular Ca2+ florescence intensity were decreased following treatment with the TRPM2 antagonist N-(p-amylcinnamoyl) anthranilic acid (ACA). Therefore, combination therapy with Se and DTX may represent an effective strategy for the treatment of glioblastoma cells and may be associated with TRPM2-mediated increases in oxidative stress and [Ca2+]i.
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Adaszek Ł, Gadomska D, Mazurek Ł, Łyp P, Madany J, Winiarczyk S. Properties of capsaicin and its utility in veterinary and human medicine. Res Vet Sci 2018; 123:14-19. [PMID: 30579138 DOI: 10.1016/j.rvsc.2018.12.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 12/31/2022]
Abstract
The main aim of this paper was to show the variety of capsaicin's properties. Capsaicin is an active component of plants of the Capsicum genus, and is known for its pungency. Capsaicin is used in the food, pharmaceutical and cosmetic industries. Additional properties of capsaicin have been demonstrated, including pain relief, weight loss, body thermoregulation, and antioxidant, antimicrobial and anticancer activities. Studies of capsaicin's effects on the human and animal organism need to be continued, with special emphasis on new applications.
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Affiliation(s)
- Łukasz Adaszek
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences Lublin, 30 Głęboka St., 20-612 Lublin, Poland.
| | - Dagmara Gadomska
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences Lublin, 30 Głęboka St., 20-612 Lublin, Poland
| | - Łukasz Mazurek
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences Lublin, 30 Głęboka St., 20-612 Lublin, Poland
| | - Paweł Łyp
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences Lublin, 30 Głęboka St., 20-612 Lublin, Poland
| | - Jacek Madany
- Department and Clinic of Animal Internal Diseases, University of Life Sciences, 20-612 Lublin, Głęboka 30, Poland
| | - Stanisław Winiarczyk
- Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences Lublin, 30 Głęboka St., 20-612 Lublin, Poland
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14
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Barbero R, Vercelli C, Cuniberti B, Della Valle MF, Martano M, Re G. Expression of functional TRPV1 receptor in primary culture of canine keratinocytes. J Vet Pharmacol Ther 2018; 41:795-804. [PMID: 30043987 DOI: 10.1111/jvp.12694] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/18/2018] [Accepted: 06/11/2018] [Indexed: 12/20/2022]
Abstract
The interest for the endovanilloid system and for transient receptor potential vanilloid 1 (TRPV1) is continuously increasing, due to their involvement in inflammation, nociception and pruritus. Even if TRPV1 enrolment was highlighted in both physiological and pathological conditions, some aspects remain unclear, mostly in veterinary medicine. This study aimed to verify the expression and functionality of TRPV1 in canine keratinocytes to investigate in vitro the role of TRPV1 in these cells that are involved in different cutaneous pathologies. Keratinocytes primary cultures were isolated from bioptical samples and cultivated. Binding assay (using 3 [H]-resiniferatoxin), displacement assay (in the presence of 1.2 nM 3 [H]-resiniferatoxin) and functional assays (in the presence of 1 μCi/45 Ca2+ ) with vanilloid agonists and antagonists, specifically addressed to TRPV1 receptor, were performed. Binding assay demonstrated the presence of measurable concentrations of TRPV1 (Bmax = 1,240 ± 120 fmol/mg protein; Kd = 0.01 ± 0.004 nM). Displacement assay highlighted the highest affinity for resiniferatoxin (RTX) and 5-iodo-resiniferatoxin (5-I-RTX), among agonists and antagonists, respectively. The same compounds results as the most potent in the functional assays. This study demonstrated the identification and the characterization of TRPV1 receptor in primary canine keratinocytes cultures. The results are promising for a clinical use, but further in vivo investigations are required.
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Affiliation(s)
- Raffaella Barbero
- SC of Serology, Istituto Zooprofilattico Sperimentale Piemonte Liguria e Valle d'Aosta, Turin, Italy
| | - Cristina Vercelli
- Department of Veterinary Sciences of Turin, University of Turin, Turin, Italy
| | - Barbara Cuniberti
- Royal Dick School of Veterinary Medicine, The University of Edinburg, Edinburg, Ireland
| | | | - Marina Martano
- Department of Veterinary Sciences of Turin, University of Turin, Turin, Italy
| | - Giovanni Re
- Department of Veterinary Sciences of Turin, University of Turin, Turin, Italy
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15
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Nur G, Nazıroğlu M, Deveci HA. Synergic prooxidant, apoptotic and TRPV1 channel activator effects of alpha-lipoic acid and cisplatin in MCF-7 breast cancer cells. J Recept Signal Transduct Res 2017; 37:569-577. [DOI: 10.1080/10799893.2017.1369121] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Gökhan Nur
- Vocational High School of Islahiye, Gaziantep University, Gaziantep, Turkey
| | - Mustafa Nazıroğlu
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey
| | - Haci Ahmet Deveci
- Vocational High School of Islahiye, Gaziantep University, Gaziantep, Turkey
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16
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Weber LV, Al-Refae K, Wölk G, Bonatz G, Altmüller J, Becker C, Gisselmann G, Hatt H. Expression and functionality of TRPV1 in breast cancer cells. BREAST CANCER-TARGETS AND THERAPY 2016; 8:243-252. [PMID: 28008282 PMCID: PMC5167528 DOI: 10.2147/bctt.s121610] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Transient receptor potential (TRP) channels contribute to the regulation of intracellular calcium, which can promote cancer hallmarks in cases of dysregulation of gene transcription and calcium-dependent pro-proliferative or anti-apoptotic mechanisms. Several studies have begun to elucidate the roles of TRPV1, TRPV6, TRPM8, and TRPC1 in cancer progression; however, no study has examined the expression profiles of human TRP channels in breast cancer on a large scale. This study focused on the expression and functionality of TRPV1, a nonselective cation channel that was found to be expressed in different carcinoma tissues. Next-generation sequencing analyses revealed the expression of TRPV1 in several native breast cancer tissues, which was subsequently validated via reverse transcriptase-polymerase chain reaction. Activation of TRPV1 by its ligand capsaicin was associated with the growth inhibition of some cancer cell types; however, the signaling components involved are complex. In this study, stimulation by the TRPV1 agonist, capsaicin, of SUM149PT cells, a model system for the most aggressive breast cancer subtype, triple-negative breast cancer, led to intracellular calcium signals that were diminished by the specific TRPV1 antagonist, capsazepin. Activation of TRPV1 by capsaicin caused significant inhibition of cancer cell growth and induced apoptosis and necrosis. In conclusion, the current study revealed the expression profiles of human TRP channels in 60 different breast cancer tissues and cell lines and furthermore validated the antitumor activity of TRPV1 against SUM149PT breast cancer cells, indicating that activation of TRPV1 could be used as a therapeutic target, even in the most aggressive breast cancer types.
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Affiliation(s)
- Lea V Weber
- Department of Cell Physiology, Ruhr-University Bochum, Bochum
| | | | | | | | - Janine Altmüller
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - Christian Becker
- Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | | | - Hanns Hatt
- Department of Cell Physiology, Ruhr-University Bochum, Bochum
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17
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Capsaicin: From Plants to a Cancer-Suppressing Agent. Molecules 2016; 21:molecules21080931. [PMID: 27472308 PMCID: PMC6274000 DOI: 10.3390/molecules21080931] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 07/01/2016] [Accepted: 07/04/2016] [Indexed: 01/07/2023] Open
Abstract
Capsaicinoids are plant secondary metabolites, capsaicin being the principal responsible for the pungency of chili peppers. It is biosynthesized through two pathways involved in phenylpropanoid and fatty acid metabolism. Plant capsaicin concentration is mainly affected by genetic, environmental and crop management factors. However, its synthesis can be enhanced by the use of elicitors. Capsaicin is employed as food additive and in pharmaceutical applications. Additionally, it has been found that capsaicin can act as a cancer preventive agent and shows wide applications against various types of cancer. This review is an approach in contextualizing the use of controlled stress on the plant to increase the content of capsaicin, highlighting its synthesis and its potential use as anticancer agent.
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18
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Sakallı Çetin E, Nazıroğlu M, Çiğ B, Övey İS, Aslan Koşar P. Selenium potentiates the anticancer effect of cisplatin against oxidative stress and calcium ion signaling-induced intracellular toxicity in MCF-7 breast cancer cells: involvement of the TRPV1 channel. J Recept Signal Transduct Res 2016; 37:84-93. [DOI: 10.3109/10799893.2016.1160931] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Esin Sakallı Çetin
- Department of Medical Biology, Faculty of Medicine, Mugla Sitki Kocman University, Mugla, Turkey,
| | - Mustafa Nazıroğlu
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey,
- Neuroscience Research Center, Suleyman Demirel University, Isparta, Turkey,
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey,
| | - Bilal Çiğ
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey,
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey,
| | - İshak Suat Övey
- Department of Biophysics, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey,
- Department of Neuroscience, Health Science Institute, Suleyman Demirel University, Isparta, Turkey,
| | - Pınar Aslan Koşar
- Department of Medical Biology, Faculty of Medicine, Suleyman Demirel University, Isparta, Turkey
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Consequences of activating the calcium-permeable ion channel TRPV1 in breast cancer cells with regulated TRPV1 expression. Cell Calcium 2014; 56:59-67. [PMID: 24889371 DOI: 10.1016/j.ceca.2014.04.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 04/28/2014] [Accepted: 04/30/2014] [Indexed: 12/20/2022]
Abstract
Increased expression of specific calcium channels in some cancers and the role of calcium signaling in proliferation and invasion have led to studies assessing calcium channel inhibitors as potential therapies for some cancers. The use of channel activators to promote death of cancer cells has been suggested, but the risk of activators promoting cancer cell proliferation and the importance of the degree of channel over-expression is unclear. We developed an MCF-7 breast cancer cell line with inducible TRPV1 overexpression and assessed the role of TRPV1 levels on cell death mediated by the TRPV1 activator capsaicin and the potential for submaximal activation to promote proliferation. The TRPV1 level was a determinant of cell death induced by capsaicin. A concentration response curve with varying TRPV1 expression levels identified the minimum level of TRPV1 required for capsaicin induced cell death. At no level of TRPV1 over-expression or capsaicin concentration did TRPV1 activation enhance proliferation. Cell death induced by capsaicin was necrotic and associated with up-regulation of c-Fos and RIP3. These studies suggest that activators of specific calcium channels may be an effective way to induce necrosis and that this approach may not always be associated with enhancement of cancer cell proliferation.
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Díaz-Laviada I, Rodríguez-Henche N. The potential antitumor effects of capsaicin. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2014; 68:181-208. [PMID: 24941670 DOI: 10.1007/978-3-0348-0828-6_8] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Capsaicin, one of the major pungent ingredients found in red peppers, has been recently demonstrated to induce apoptosis in many types of malignant cell lines including colon adenocarcinoma, pancreatic cancer, hepatocellular carcinoma, prostate cancer, breast cancer, and many others. The mechanism whereby capsaicin induces apoptosis in cancer cells is not completely elucidated but involves intracellular calcium increase, reactive oxygen species generation, disruption of mitochondrial membrane transition potential, and activation of transcription factors such as NFkappaB and STATS. Recently, a role for the AMP-dependent kinase (AMPK) and autophagy pathways in capsaicin-triggered cell death has been proposed. In addition, capsaicin shows antitumor activity in vivo by reducing the growth of many tumors induced in mice. In this chapter, we report the last advances performed in the antitumor activity of capsaicin and review the main signaling pathways involved.
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