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Cox A, Brown KC, Valentovic MA. The E-liquid flavoring vanillin alters energy and autophagic pathways in human proximal tubule (HK-2) epithelial cells. Chem Biol Interact 2024; 394:111003. [PMID: 38608998 DOI: 10.1016/j.cbi.2024.111003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/04/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
The use of flavored e-liquids in electronic nicotine delivery systems (ENDS) has become very popular in recent years, but effects of these products have not been well characterized outside the lung. In this study, acute exposure to the popular flavoring vanillin (VAN) was performed on human proximal tubule (HK-2) kidney cells. Cells were exposed to 0-1000 μM VAN for 24 or 48 h and cellular stress responses were determined. Mitochondrial viability using MTT assay showed a significant decrease between the control and 1000 μM group by 48 h. Seahorse XFp analysis showed significantly increased basal respiration, ATP production, and proton leak after 24 h exposure. By 48 h exposure, these parameters remained significantly increased in addition to non-mitochondrial respiration and maximal respiration. Glycolytic activity after 24 h exposure showed significant decreases in glycolysis, glycolytic capacity, glycolytic reserve, and non-glycolytic acidification. The autophagy markers microtubule-associated protein 1A/1B light chain 3 (LC3B-I and LC3B-II) were probed via western blotting. The ratio of LC3B-II/LC3B-I was significantly increased after 24 h exposure to VAN, but by 48 h this ratio significantly decreased. The mitophagy marker PINK1 showed an increasing trend at 24 h, and its downstream target Parkin was significantly increased between the control and 750 μM group only. Finally, the oxidative stress marker 4-HNE was significantly decreased after 48 h exposure to VAN. These results indicate that acute exposure to VAN in the kidney HK-2 model can induce energy and autophagic changes within the cell.
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Affiliation(s)
- Ashley Cox
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA.
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Cox A, Brown KC, Bender C, Valentovic MA. The e-liquid flavoring cinnamaldehyde induces cellular stress responses in human proximal tubule (HK-2) kidney cells. Biomed Pharmacother 2024; 175:116666. [PMID: 38677246 DOI: 10.1016/j.biopha.2024.116666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024] Open
Abstract
Flavored e-liquid use has become popular among e-cigarette users recently, but the effects of such products outside the lung are not well characterized. In this work, acute exposure to the popular flavoring cinnamaldehyde (CIN) was performed on human proximal tubule (HK-2) kidney cells. Cells were exposed to 0-100 µM CIN for 24-48 h and cellular stress responses were assessed. Mitochondrial viability via MTT assay was significantly decreased at 20 µM for 24 and 48 h exposure. Seahorse XFp analysis showed significantly decreased mitochondrial energy output at 20 µM by 24 h exposure, in addition to significantly reduced ATP Synthase expression. Seahorse analysis also revealed significantly decreased glycolytic function at 20 µM by 24 h exposure, suggesting inability of glycolytic processes to compensate for reduced mitochondrial energy output. Cleaved caspase-3 expression, a mediator of apoptosis, was significantly increased at the 24 h mark. C/EBP homologous protein (CHOP) expression, a mediator of ER-induced apoptosis, was induced by 48 h and subsequently lost at the highest concentration of 100 µM. This decrease was accompanied by a simultaneous decrease in its downstream target cleaved caspase-3 at the 48 h mark. The autophagy marker microtubule-associated protein 1 A/1B light chain 3 (LC3B-I and LC3B-II) expression was significantly increased at 100 µM by 24 h. Autophagy-related 7 (ATG7) protein and mitophagy-related proteins PTEN-induced putative kinase 1 (PINK1) and PARKIN expression were significantly reduced at 24 and 48 h exposure. These results indicate acute exposure to CIN in the kidney HK-2 model induces mitochondrial dysfunction and cellular stress responses.
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Affiliation(s)
- Ashley Cox
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, United States
| | - Christopher Bender
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, United States.
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3
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Letheren A, Brown KC, Barroso CS, Myers CR, Nobles R. Perceptions of access to care after a rural hospital closure in an economically distressed county of Appalachian Tennessee. J Rural Health 2024; 40:219-226. [PMID: 37715718 DOI: 10.1111/jrh.12794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 09/18/2023]
Abstract
PURPOSE The rise in rural hospital closures has sparked concern about the potential loss of essential health care services for rural communities. It is crucial to incorporate the perspectives of community residents, which have been largely missing from the literature, when devising strategies to improve health care for this population. The purpose of this study was to describe community residents' perceptions of access to care following a rural hospital closure in an economically distressed Appalachian county of Tennessee. METHODS This study used a qualitative descriptive approach to illustrate how community residents perceive accessing care post hospital closure. We conducted semi-structured interviews with 24 community residents via telephone in May through August of 2020. Interviews were analyzed using conventional content analysis. FINDINGS Five themes were identified based on Penchansky and Thomas' framework of health care: accessibility, availability, affordability, accommodation, and acceptability. Accessibility was identified as the most common concern among participants. Specifically, participants perceived longer travel times to receive care, reduced availability of emergency and specialty care, increased costs associated with ambulance services, and extended wait times to see providers. CONCLUSIONS Our findings provide a critical perspective to inform local leaders and policymakers on the impacts of a hospital closure in a rural community. As rural hospitals continue to close, it is crucial to develop multi-level, community-driven solutions to ensure access to care for rural communities.
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Affiliation(s)
- Amanda Letheren
- Public Health and Healthcare, Oak Ridge Associated Universities, Oak Ridge, Tennessee, USA
- Department of Public Health, University of Tennessee, Knoxville, Tennessee, USA
| | - Kathleen C Brown
- Department of Public Health, University of Tennessee, Knoxville, Tennessee, USA
| | | | - Carole R Myers
- College of Nursing, University of Tennessee, Knoxville, Tennessee, USA
| | - Robert Nobles
- Research Administration, Emory University, Atlanta, Georgia, USA
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Brown KC, Light RS, Modi KJ, Conely KB, Sugrue AM, Cox AJ, Miles SL, Valentovic MA, Dasgupta P. An Improved Protocol for the Matrigel Duplex Assay: A Method to Measure Retinal Angiogenesis. Bio Protoc 2023; 13:e4899. [PMID: 38094254 PMCID: PMC10716016 DOI: 10.21769/bioprotoc.4899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/08/2023] [Accepted: 10/19/2023] [Indexed: 02/01/2024] Open
Abstract
Neovascular diseases of the retina, such as diabetic retinopathy (DR) and age-related macular degeneration (AMD), are proliferative retinopathies involving the growth of new blood vessels on the retina, which in turn causes impairment and potential loss of vision. A drawback of conventional angiogenesis assays is that they are not representative of the angiogenic processes in the retina. In the retina, the new blood vessels grow (from pre-existing blood vessels) and migrate into a non-perfused region of the eye including the inner limiting membrane of the retina and the vitreous, both of which contribute to vision loss. The Matrigel Duplex Assay (MDA) measures the migration of angiogenic capillaries from a primary Matrigel layer to a secondary Matrigel layer, which resembles the pathological angiogenesis in AMD and DR. The methodology of MDA is comprised of two steps. In the first step, the human retinal microvascular endothelial cells (HRMECs) are mixed with phenol red-containing Matrigel (in a 1:1 ratio) and seeded in the center of an 8-well chamber slide. After 24 h, a second layer of phenol red-free Matrigel is overlaid over the first layer. Over the course of the next 24 h, the HRMECs invade from the primary Matrigel layer to the secondary layer. Subsequently, the angiogenic sprouts are visualized by brightfield phase contrast microscopy and quantified by ImageJ software. The present manuscript measures the angiogenesis-inhibitory activity of the Src kinase inhibitor PP2 in primary HRMECs using the MDA. The MDA may be used for multiple applications like screening anti-angiogenic drugs, measuring the pro-angiogenic activity of growth factors, and elucidating signaling pathways underlying retinal angiogenesis in normal and disease states.
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Affiliation(s)
- Kathleen C. Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Reagan S. Light
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Kushal J. Modi
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Kaitlyn B. Conely
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Amanda M. Sugrue
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Ashley J. Cox
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Sarah L. Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Monica A. Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755 USA
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Valluri A, Wellman J, McCallister CL, Brown KC, Lawrence L, Russell R, Jensen J, Denvir J, Valentovic MA, Denning KL, Salisbury TB. mTOR Regulation of N-Myc Downstream Regulated 1 (NDRG1) Phosphorylation in Clear Cell Renal Cell Carcinoma. Int J Mol Sci 2023; 24:9364. [PMID: 37298315 PMCID: PMC10253553 DOI: 10.3390/ijms24119364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/17/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
The mechanistic target of rapamycin (mTOR) kinase is a component of two signaling complexes that are known as mTOR complex 1 (mTORC1) and mTORC2. We sought to identify mTOR-phosphorylated proteins that are differently expressed in clinically resected clear cell renal cell carcinoma (ccRCC) relative to pair-matched normal renal tissue. Using a proteomic array, we found N-Myc Downstream Regulated 1 (NDRG1) showed the greatest increase (3.3-fold) in phosphorylation (on Thr346) in ccRCC. This was associated with an increase in total NDRG1. RICTOR is a required subunit in mTORC2, and its knockdown decreased total and phospho-NDRG1 (Thr346) but not NDRG1 mRNA. The dual mTORC1/2 inhibitor, Torin 2, significantly reduced (by ~100%) phospho-NDRG1 (Thr346). Rapamycin is a selective mTORC1 inhibitor that had no effect on the levels of total NDRG1 or phospho-NDRG1 (Thr346). The reduction in phospho-NDRG1 (Thr346) due to the inhibition of mTORC2 corresponded with a decrease in the percentage of live cells, which was correlated with an increase in apoptosis. Rapamycin had no effect on ccRCC cell viability. Collectively, these data show that mTORC2 mediates the phosphorylation of NDRG1 (Thr346) in ccRCC. We hypothesize that RICTOR and mTORC2-mediated phosphorylation of NDRG1 (Thr346) promotes the viability of ccRCC cells.
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Affiliation(s)
- Anisha Valluri
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Jessica Wellman
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Chelsea L. McCallister
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Kathleen C. Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Logan Lawrence
- Cabell Huntington Hospital Laboratory, Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (L.L.); (R.R.); (K.L.D.)
| | - Rebecca Russell
- Cabell Huntington Hospital Laboratory, Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (L.L.); (R.R.); (K.L.D.)
| | - James Jensen
- Edwards Comprehensive Cancer Center, Department of Oncology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA;
| | - James Denvir
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Monica A. Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
| | - Krista L. Denning
- Cabell Huntington Hospital Laboratory, Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25701, USA; (L.L.); (R.R.); (K.L.D.)
| | - Travis B. Salisbury
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, Huntington, WV 25755, USA; (A.V.); (J.W.); (C.L.M.); (K.C.B.); (J.D.); (M.A.V.)
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6
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Brown KC, Modi KJ, Light RS, Cox AJ, Long TE, Gadepalli RS, Rimoldi JM, Miles SL, Rankin G, Valentovic M, Denning KL, Tirona MT, Finch PT, Hess JA, Dasgupta P. Anticancer Activity of Region B Capsaicin Analogs. J Med Chem 2023; 66:4294-4323. [PMID: 37000154 PMCID: PMC10108357 DOI: 10.1021/acs.jmedchem.2c01594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
The heterocyclic vanilloid compound capsaicin is responsible for the spicy and pungent flavor of chili peppers. Several convergent studies have shown that capsaicin suppresses the growth of multiple human cancers. Apart from capsaicin, natural and synthetic capsaicin-like compounds display growth suppressive activity in human cancers. The pharmacophore of capsaicin is comprised of three regions, namely region A (the aromatic ring), region B (the amide bond), and region C (the side chain). The present manuscript describes the isolation and synthesis of capsaicin analogs which have structural modifications in region B of the molecule. Furthermore, the pharmacokinetic properties, anticancer activity of region B capsaicin analogs, as well as the signaling pathways (underlying the growth-inhibitory effects of region B capsaicin analogs) have also been described. The discovery of novel, second-generation region B capsaicin analogs may foster the hope of innovative nutrition-based combination therapies in human cancers.
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Affiliation(s)
- Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Kushal J Modi
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Reagan S Light
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Ashley J Cox
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Timothy E Long
- Department of Pharmaceutical Sciences and Research, Marshall University School of Pharmacy, 1538 Charleston Ave, Huntington, West Virginia 25701, United States
| | - Rama S Gadepalli
- Department of Biomolecular Sciences, School of Pharmacy, Thad Cochran Research Center, University of Mississippi, University Avenue, University, Mississippi 38677, United States
| | - John M Rimoldi
- Department of Biomolecular Sciences, School of Pharmacy, Thad Cochran Research Center, University of Mississippi, University Avenue, University, Mississippi 38677, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Gary Rankin
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Monica Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Krista L Denning
- Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia 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, West Virginia 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, West Virginia 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, West Virginia 25755, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
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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: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Moles EG, Friedman JR, Miles SL, Brown KC, Hopper KJ, Chen YC, Dasgupta P. Arvanil, a synthetic capsaicin mimetic, synergizes with Irinotecan to trigger enhanced apoptosis in Cisplatin‐resistant Human Lung Cancer. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l6394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Emily G. Moles
- Joan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Sarah L. Miles
- Joan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Kelly J. Hopper
- Joan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Piyali Dasgupta
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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9
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Valentovic MA, Brown KC, Murphy R, Cremeans B, McGuffey R, Cox A. Cellular and Mitochondrial Damage by the Antiviral agent Tenofovir in Renal Epithelial Cells. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Kathleen C. Brown
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
| | - Rachel Murphy
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
| | - Brad Cremeans
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
| | - Rachel McGuffey
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
| | - Ashley Cox
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
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Richbart SD, Nolan NA, Akers AT, Brown KC, Denning KL, Egleton RD, Dasgupta P. Anti‐invasive and anti‐metastatic activity of capsaicin and natural capsaicin‐like compounds in lung adenocarcinoma. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l6395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Austin T. Akers
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | | | | | - Piyali Dasgupta
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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Cox A, Brown KC, Valentovic MA. Cytotoxicity in Human Kidney HK‐2 Cells of the Flavoring Aldehydes Cinnamaldehyde and Vanillin. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r4871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ashley Cox
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
| | - Kathleen C. Brown
- Biomedical SciencesMarshall University School of MedicineHuntingtonWV
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Sugrue AM, Nolan NA, Richbart SD, Akers AT, Brown KC, Dasgupta P. Spherical Invasion Assay: A novel method to measure the pro‐invasive activity of cancer cells. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l6397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amanda M. Sugrue
- Joan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Stephen D. Richbart
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Austin T. Akers
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Piyali Dasgupta
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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Richbart SD, Merritt JC, Moles EG, Brown KC, Adeluola AA, Finch PT, Hess JA, Tirona MT, Miles SL, Valentovic MA, Dasgupta AP. Spherical Invasion Assay: A Novel Method to Measure Invasion of Cancer Cells. Bio Protoc 2022; 12:e4320. [PMID: 35340295 PMCID: PMC8899551 DOI: 10.21769/bioprotoc.4320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 09/13/2021] [Accepted: 12/14/2021] [Indexed: 10/01/2023] Open
Abstract
The invasion of tumor cells into the neighboring blood vessels and lymph nodes is a vital step for distant metastasis. Traditionally, the invasive activity of growth factors (or the anti-invasive activity of drugs) is measured with the Boyden chamber assay. However, this assay has a few disadvantages like poor physiological relevance of transwell inserts and an inability to control chemokine gradients. The Boyden chamber assay is one of the most prevalent methods to measure the invasion of cancer cells. It would be advantageous to develop another assay that could validate the results of the Boyden chamber assay. With this in mind, our laboratory developed the spherical invasion assay (SIA) to measure the pro-invasive activity of human cancer cells. The SIA also circumvents some of the drawbacks of the Boyden chamber assay. The present manuscript measures the anti-invasive activity of the Src kinase inhibitor PP2 in A549 human non-small cell lung carcinoma (NSCLC) cells using the SIA. The SIA protocol is comprised of two steps. In the first step, A549 human NSCLC cells (treated or not with PP2) were mixed with Matrigel and seeded in the middle of an eight-well chamber slide. After 24 h, a second layer of Matrigel was overlaid over the first layer. Over the course of the next 24 h, the A549 cells invade from the primary to the secondary Matrigel layers. Subsequently, the cells are visualized by phase-contrast microscopy and the images obtained are quantified using ImageJ to calculate the anti-invasive activity of PP2 in A549 cells. The results of the SIA correlate well with Boyden chamber assays. The SIA may be adapted for multiple experimental designs, such as drug screening (to combat invasion and metastasis), measuring the pro-invasive activity of growth factors, and elucidating the signaling pathways underlying the pro-invasive/anti-invasive activity of biological modifiers. Graphic abstract: Diagrammatic illustration of the spherical invasion assay ( Hurley et al., 2017 ) . A. The first layer is comprised of human cancer cells mixed in a 1:1 suspension with Phenol Red containing Matrigel (represented as LAYER 1 in the figure). After 24 h, the cancer cells grow and extend up to the boundary of this first layer. B. A second layer of 1:1 solution Phenol Red-free Matrigel, in Phenol Red-free RPMI (represented as LAYER 2 in the figure) is added on top of the first Matrigel spot. The cells are incubated for 24 h at 37°C. C. Over these 24 h, the cancer cells invade from the primary layer into the secondary Matrigel layer. The chamber slides are observed by phase-contrast microscopy. D. A representative photograph of the images obtained by the SIA is shown. The black arrow indicates the cancer cells invading into the second layer of Matrigel. The dotted line represents the interface between the two layers. The distance to which the cells have traveled (into the secondary Matrigel layer) is measured at ten sites (for each photograph) in a randomized double-blind fashion by three independent observers, using NIH ImageJ Version 1.47. This process is repeated for three separate photographic fields per sample.
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Affiliation(s)
- Stephen D. Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Justin C. Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Emily G. Moles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Kathleen C. Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Adeoluwa A. Adeluola
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Paul T. Finch
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Joshua A. Hess
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Maria T. Tirona
- Department of Hematology-Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Sarah L. Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Monica A. Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - And Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
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14
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Ehrlich SF, Maples JM, Barroso CS, Brown KC, Bassett DR, Zite NB, Fortner KB. Using a consumer-based wearable activity tracker for physical activity goal setting and measuring steps in pregnant women with gestational diabetes mellitus: exploring acceptance and validity. BMC Pregnancy Childbirth 2021; 21:420. [PMID: 34103002 PMCID: PMC8188700 DOI: 10.1186/s12884-021-03900-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/19/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Activity monitoring devices may be used to facilitate goal-setting, self-monitoring, and feedback towards a step-based physical activity (PA) goal. This study examined the performance of the wrist-worn Fitbit Charge 3™ (FC3) and sought opinions on walking and stepping-in-place from women with gestational diabetes (GDM). METHODS Participants completed six 2-min metronome-assisted over ground bouts that varied by cadence (67, 84, or 100 steps per minute) and mode (walking or stepping-in-place; N = 15), with the sequence randomized. Steps were estimated by FC3 and measured, in duplicate, by direct observation (hand-tally device, criterion). Equivalence testing by the two one-sided tests (TOST) method assessed agreement within ± 15%. Mean absolute percent error (MAPE) of steps were compared to 10%, the accuracy standard of the Consumer Technology Association (CTA)™. A subset (n = 10) completed a timed, 200-m self-paced walk to assess natural walking pace and cadence. All participants completed semi-structured interviews, which were transcribed and analyzed using descriptive and interpretive coding. RESULTS Mean age was 27.0 years (SD 4.2), prepregnancy BMI 29.4 kg/m2 (8.3), and gestational age 32.8 weeks (SD 2.6). The FC3 was equivalent to hand-tally for bouts of metronome-assisted walking and stepping-in-place at 84 and 100 steps per minute (i.e., P < .05), although walking at 100 steps per minute (P = .01) was no longer equivalent upon adjustment for multiple comparisons (i.e., at P < .007). The FC3 was equivalent to hand-tally during the 200-m walk (i.e., P < .001), in which mean pace was 68.2 m per minute (SD 10.7), or 2.5 miles per hour, and mean cadence 108.5 steps per minute (SD 6.5). For walking at 84 and 100 steps per minute, stepping-in-place at 100 steps per minute, and the 200-m walk, MAPE was within 10%, the accuracy standard of the CTA™. Interviews revealed motivation for PA, that stepping-in-place was an acceptable alternative to walking, and competing responsibilities made it difficult to find time for PA. CONCLUSIONS The FC3 appears to be a valid step counter during the third trimester, particularly when walking or stepping-in-place at or close to women's preferred cadence.
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Affiliation(s)
- Samantha F Ehrlich
- Department of Public Health, The University of Tennessee, Knoxville, 390 HPER, 1914 Andy Holt Ave, Knoxville, TN, 37996, USA.
| | - Jill M Maples
- The University of Tennessee, Graduate School of Medicine, 1924 Alcoa Highway, Knoxville, TN, 37920, USA
| | - Cristina S Barroso
- College of Nursing, The University of Tennessee, Knoxville, 1200 Volunteer Blvd, Knoxville, TN, 37996, USA
| | - Kathleen C Brown
- Department of Public Health, The University of Tennessee, Knoxville, 390 HPER, 1914 Andy Holt Ave, Knoxville, TN, 37996, USA
| | - David R Bassett
- Department of Kinesiology, Recreation, and Sport Studies, The University of Tennessee, Knoxville, 1914 Andy Holt Ave, Knoxville, TN, 37996, USA
| | - Nikki B Zite
- The University of Tennessee, Graduate School of Medicine, 1924 Alcoa Highway, Knoxville, TN, 37920, USA
| | - Kimberly B Fortner
- The University of Tennessee, Graduate School of Medicine, 1924 Alcoa Highway, Knoxville, TN, 37920, USA
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15
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Richbart SD, Friedman JR, Brown KC, Gadepalli RS, Miles SL, Rimoldi JM, Rankin GO, Valentovic MA, Tirona MT, Finch PT, Hess JA, Dasgupta P. Nonpungent N-AVAM Capsaicin Analogues and Cancer Therapy. J Med Chem 2021; 64:1346-1361. [PMID: 33508189 PMCID: PMC10442063 DOI: 10.1021/acs.jmedchem.0c01679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Capsaicin displays robust growth-inhibitory activity in multiple human cancers. However, the feasibility of capsaicin as a clinically relevant anticancer drug is hampered by its adverse side effects. This concern has led to extensive research focused on the isolation and synthesis of second-generation nonpungent capsaicin analogues with potent antineoplastic activity. A major class of nonpungent capsaicin-like compounds belongs to the N-acyl-vanillylamide (N-AVAM) derivatives of capsaicin (hereafter referred as N-AVAM capsaicin analogues). This perspective discusses the isolation of N-AVAM capsaicin analogues from natural sources as well as their synthesis by chemical and enzymatic methods. The perspective describes the pharmacokinetic properties and anticancer activity of N-AVAM capsaicin analogues. The signaling pathways underlying the growth-inhibitory effects of N-AVAM capsaicin analogues have also been highlighted. It is hoped that the insights obtained in this perspective will facilitate the synthesis of a second generation of N-AVAM capsaicin analogues with improved stability and growth-suppressive activity in human cancer.
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Affiliation(s)
- Stephen D Richbart
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Jamie R Friedman
- BioAgilytix Inc., 2300 Englert Drive, Durham, North Carolina 27713, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Rama S Gadepalli
- Department of Biomolecular Sciences, School of Pharmacy, Thad Cochran Research Center, University of Mississippi, University Avenue, University, Mississippi 38677, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - John M Rimoldi
- Department of Biomolecular Sciences, School of Pharmacy, Thad Cochran Research Center, University of Mississippi, University Avenue, University, Mississippi 38677, United States
| | - Gary O Rankin
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 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, West Virginia 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, West Virginia 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, West Virginia 25755, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1700 Third Avenue, Huntington, West Virginia 25755, United States
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16
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Ehrlich SF, Maples J, Barroso C, Brown KC, Fortner K, Zite N, Bassett DR. Preparing For A Behavioral Physical Activity Intervention In Women With Gestational Diabetes Mellitus. Med Sci Sports Exerc 2020. [DOI: 10.1249/01.mss.0000677200.14542.e9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Dasgupta P, Friedman JR, Perry HE, Colclough KW, Stevenson CD, Hurley JD, Akers AT, Nolan NA, Brown KC, Chen YC, Denning KL. Capsaicin enhances the pro‐apoptotic activity of Camptothecin in human small cell lung cancer. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.01810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Haley E Perry
- Joan C Edwards School of Medicine Marshall University
| | | | | | - John D Hurley
- Joan C Edwards School of Medicine Marshall University
| | | | - Nick A Nolan
- Joan C Edwards School of Medicine Marshall University
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18
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Valentovic MA, Brown KC, Dial M, McGuffey R. Resveratrol Attenuates Doxorubicin Cytotoxicity and Mitochondrial Dysfunction and Human Proximal Tubular Epithelial Cells. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.04598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Ward DB, Brown KC, Valentovic MA. Radiocontrast Agent Diatrizoic Acid Induces Mitophagy and Oxidative Stress via Calcium Dysregulation. Int J Mol Sci 2019; 20:ijms20174074. [PMID: 31438500 PMCID: PMC6747199 DOI: 10.3390/ijms20174074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/17/2019] [Accepted: 08/18/2019] [Indexed: 01/15/2023] Open
Abstract
Contrast-induced acute kidney injury (CI-AKI) is the third most common cause of hospital associated kidney damage. Potential mechanisms of CI-AKI may involve diminished renal hemodynamics, inflammatory responses, and direct cytotoxicity. The hypothesis for this study is that diatrizoic acid (DA) induces direct cytotoxicity to human proximal tubule (HK-2) cells via calcium dysregulation, mitochondrial dysfunction, and oxidative stress. HK-2 cells were exposed to 0–30 mg I/mL DA or vehicle for 2–24 h. Conversion of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and trypan blue exclusion indicated a decrease in mitochondrial and cell viability within 2 and 24 h, respectively. Mitochondrial dysfunction was apparent within 8 h post exposure to 15 mg I/mL DA as shown by Seahorse XF cell mito and Glycolysis Stress tests. Mitophagy was increased at 8 h by 15 mg I/mL DA as confirmed by elevated LC3BII/I expression ratio. HK-2 cells pretreated with calcium level modulators BAPTA-AM, EGTA, or 2-aminophenyl borinate abrogated DA-induced mitochondrial damage. DA increased oxidative stress biomarkers of protein carbonylation and 4-hydroxynonenol (4HNE) adduct formation. Caspase 3 and 12 activation was induced by DA compared to vehicle at 24 h. These studies indicate that clinically relevant concentrations of DA impair HK-2 cells by dysregulating calcium, inducing mitochondrial turnover and oxidative stress, and activating apoptosis.
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Affiliation(s)
- Dakota B Ward
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1 Marshall Drive, Huntington, WV 25755, USA
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1 Marshall Drive, Huntington, WV 25755, USA
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, 1 Marshall Drive, Huntington, WV 25755, USA.
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20
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Friedman JR, Richbart SD, Merritt JC, Brown KC, Denning KL, Tirona MT, Valentovic MA, Miles SL, Dasgupta P. Capsaicinoids: Multiple effects on angiogenesis, invasion and metastasis in human cancers. Biomed Pharmacother 2019; 118:109317. [PMID: 31404777 DOI: 10.1016/j.biopha.2019.109317] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 12/13/2022] Open
Abstract
Cancer progression is a complex multistep process comprising of angiogenesis of the primary tumor, its invasion into the surrounding stroma and its migration to distant organs to produce metastases. Nutritional compounds of the "capsaicinoid" family regulate angiogenesis, invasion and metastasis of tumors. Capsaicinoids display robust anti-angiogenic activity in both cell culture and mice models. However, conflicting reports exist about the effect of capsaicinoids on invasion of metastasis of cancers. While some published reports have described an anti-invasive and anti-metastatic role for capsaicinoids, others have argued that capsaicinoids stimulate invasion and metastasis of cancers. The present review article summarizes these findings involving the bioactivity of capsaicin in angiogenesis, invasion and metastasis of cancer. A survey of literature indicate that they are several articles summarizing the growth-inhibitory activity of capsaicinoids but few describe its effects on angiogenesis, invasion and metastasis in detail. Our review article fills this gap of knowledge. The discovery of a second generation of natural and synthetic capsaicin analogs (with anti-tumor activity) will pave the way to improved strategies for the treatment of several human cancers.
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Affiliation(s)
- Jamie R Friedman
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Stephen D Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Justin C Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Krista L Denning
- Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Maria T Tirona
- Department of Hematology-Oncology, Edwards Cancer Center, Cabell Huntington Hospital, 1400 Hal Greer Boulevard, Huntington, WV 25701, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, 1 John Marshall Drive, WV 25755, United States.
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21
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Friedman JR, Richbart SD, Merritt JC, Perry HE, Brown KC, Akers AT, Nolan NA, Stevenson CD, Hurley JD, Miles SL, Tirona MT, Valentovic MA, Dasgupta P. Capsaicinoids enhance chemosensitivity to chemotherapeutic drugs. Adv Cancer Res 2019; 144:263-298. [PMID: 31349900 DOI: 10.1016/bs.acr.2019.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cytotoxic chemotherapy is the mainstay of cancer treatment. Conventional chemotherapeutic agents do not distinguish between normal and neoplastic cells. This leads to severe toxic side effects, which may necessitate the discontinuation of treatment in some patients. Recent research has identified key molecular events in the initiation and progression of cancer, promoting the design of targeted therapies to selectively kill tumor cells while sparing normal cells. Although, the side effects of such drugs are typically milder than conventional chemotherapies, some off-target effects still occur. Another serious challenge with all chemotherapies is the acquisition of chemoresistance upon prolonged exposure to the drug. Therefore, identifying supplementary agents that sensitize tumor cells to chemotherapy-induced apoptosis and help minimize drug resistance would be valuable for improving patient tolerance and response to chemotherapy. The use of effective supplementary agents provides a twofold advantage in combination with standard chemotherapy. First, by augmenting the activity of the chemotherapeutic drug it can lower the dose needed to kill tumor cells and decrease the incidence and severity of treatment-limiting side effects. Second, adjuvant therapies that lower the effective dose of chemotherapy may delay/prevent the development of chemoresistance in tumors. Capsaicinoids, a major class of phytochemical compounds isolated from chili peppers, have been shown to improve the efficacy of several anti-cancer drugs in cell culture and animal models. The present chapter summarizes the current knowledge about the chemosensitizing activity of capsaicinoids with conventional and targeted chemotherapeutic drugs, highlighting the potential use of capsaicinoids in novel combination therapies to improve the therapeutic indices of conventional and targeted chemotherapeutic drugs in human cancers.
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Affiliation(s)
- Jamie R Friedman
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Stephen D Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Justin C Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Haley E Perry
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Austin T Akers
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Nicholas A Nolan
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Cathryn D Stevenson
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - John D Hurley
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Maria T Tirona
- Department of Hematology, Oncology, Edwards Comprehensive Cancer Center, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States.
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22
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Friedman JR, Richbart SD, Merritt JC, Brown KC, Denning KL, Brown LG, Egleton RD, Dasgupta P. Capsaicin and natural capsaicin‐like compounds suppress metastasis in lung adenocarcinoma. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.368.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | - Krista L Denning
- PathologyJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Linda G Brown
- PathologyJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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23
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Merritt JC, Gadapalli RS, Akers AT, Nolan NA, Brown KC, Colclough KW, Miles SL, Friedman JR, Rimoldi JM, Dasgupta P. Non‐Pungent Capsaicin Analogs: Potential Applications in Lung Cancer Therapy. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.802.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Justin C Merritt
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Austin T Akers
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Nicholas A Nolan
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Kathleen C Brown
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Kate W Colclough
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Sarah L Miles
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Jamie R Friedman
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - John M Rimoldi
- Biomolecular SciencesThe University of MississippiUniversityMS
| | - Piyali Dasgupta
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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24
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Dasgupta P, Robateau ZR, Nolan NA, Brown KC, Chen YC, Tirona MR, Egleton RD. Anti‐angiogenic activity of memantine, a dual α7‐nAChR/ NMDAR antagonist, in human squamous cell lung cancer. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.802.45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Piyali Dasgupta
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Zachary R Robateau
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Nicholas A Nolan
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | - Kathleen C Brown
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
| | | | - Maria R Tirona
- Medical OncologyEdwards Comprehensive Cancer Center, Marshall UniversityHuntingtonWV
| | - Richard D Egleton
- Biomedical SciencesJoan C. Edwards School of Medicine, Marshall UniversityHuntingtonWV
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25
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Valentovic MA, Brown KC, Dial M, McGuffey R. Doxorubicin Mitochondrial Dysfunction and Cytotoxicity in Human Proximal Tubular Epithelial Cells is Attenuated by Resveratrol (RES). FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.671.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Monica A Valentovic
- Biomedical Science, Toxicology Res ClusterMarshall University School of MedicineHuntingtonWV
| | - Kathleen C Brown
- Biomedical Science, Toxicology Res ClusterMarshall University School of MedicineHuntingtonWV
| | - Mason Dial
- Biomedical Science, Toxicology Res ClusterMarshall University School of MedicineHuntingtonWV
| | - Rachel McGuffey
- Biomedical Science, Toxicology Res ClusterMarshall University School of MedicineHuntingtonWV
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Meschke LL, McNeely C, Brown KC, Prather JM. Reproductive Health Knowledge, Attitudes, and Behaviors Among Women Enrolled in Medication-Assisted Treatment for Opioid Use Disorder. J Womens Health (Larchmt) 2018; 27:1215-1224. [DOI: 10.1089/jwh.2017.6564] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Laurie L. Meschke
- Department of Public Health, University of Tennessee, Knoxville, Knoxville, Tennessee
| | - Clea McNeely
- Department of Public Health, University of Tennessee, Knoxville, Knoxville, Tennessee
| | - Kathleen C. Brown
- Department of Public Health, University of Tennessee, Knoxville, Knoxville, Tennessee
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Rankin GO, Nguyen V, Hicks WM, Brown KC, Dial M, Leader T, Valentovic MA, Anestis D. Trichlorophenol Induced Nephrotoxicity in Isolated Rat Renal Cortical Cells. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.562.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gary O. Rankin
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Vy Nguyen
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - W. Mason Hicks
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Kathleen C. Brown
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Mason Dial
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Tori Leader
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Monica A. Valentovic
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
| | - Dianne Anestis
- Biomedical SciencesJoan C Edwards School of Medicine Marshall UniversityHuntingtonWV
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Friedman JR, Gadapalli RS, Akers AT, Nolan NA, Brown KC, Colclough KW, Miles SL, Rimoldi JM, Dasgupta P. Anti‐cancer activity of non‐pungent capsaicin analogs: A Structure‐Activity Study. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.407.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Austin T. Akers
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | | | | | - Sarah L. Miles
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
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Richbart SD, Nolan NA, Akers AT, Colclough KW, Hurley JD, Williams CD, Rollyson WD, Brown KC, Denning KL, Brown LG, Egleton RD, Dasgupta P. Anti‐metastatic activity of capsaicin and natural capsaicin‐like compounds in human lung adenocarcinoma. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.677.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Austin T. Akers
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - John D. Hurley
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | | | | | - Krista L. Denning
- PathologyCabell Huntington HospitalJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Linda G. Brown
- PathologyCabell Huntington HospitalJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
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Colclough KW, Friedman JR, Perry HE, Brown KC, Akers AT, Nolan NA, Rollyson WD, Chen YC, Denning KL, Brown LG, Dasgupta P. Capsaicin and Its Non‐Pungent Analog Arvanil Sensitize Platinum‐Resistant Small Cell Lung Cancer to Camptothecin‐Induced Apoptosis. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.677.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Haley E. Perry
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - Austin T. Akers
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | | | | | - Krista L. Denning
- PathologyCabell Huntington HospitalJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Linda G. Brown
- PathologyCabell Huntington HospitalJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
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Nolan NA, Robateau Z, Brown KC, Chen YC, Egleton RD, Tirona MR, Dasgupta P. Memantine (a dual α7‐nAChR/NMDAR antagonist) displays anti‐angiogenic activity in human squamous cell lung cancer. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.281.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Zachary Robateau
- Biomedical SciencesJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | | | | | - Maria R. Tirona
- Edwards Comprehensive Cancer CenterMarshall UniversityHuntingtonWV
| | - Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
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Akers AT, Brown KC, Colclough KW, Nolan NA, Friedman JR, Miles SL, Bow EW, Rimoldi JM, Hardman EW, Dasgupta P. Inhibition of choline acetyltransferase activity abrogates the growth of lung adenocarcinoma patients who are exposed to tobacco smoke. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.677.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Austin T. Akers
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | | | | | | | - Sarah L. Miles
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Eric W. Bow
- Biomolecular SciencesUniversity of MississippiUniversityMS
| | | | | | - Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
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Dasgupta P, Lau JK, Brown KC, Bow E, Robateau ZR, Rollyson WD, Stover CA, Rimoldi JM, Cutler S, Hardman WE, Carpenter AB, Chen YC. Acetylcholine signaling pathway: A novel target for lung cancer in smokers. FASEB J 2018. [DOI: 10.1096/fasebj.2018.32.1_supplement.677.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Piyali Dasgupta
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Jamie K. Lau
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - Eric Bow
- Biomolecular SciencesUniversity of MississippiUniversityMS
| | | | | | - Cody A. Stover
- Joan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | | | - Stephen Cutler
- College of PharmacyUniversity of South CarolinaColumbiaSC
| | | | - A. Betts Carpenter
- PathologyJoan C. Edwards School of MedicineMarshall UniversityHuntingtonWV
| | - Yi C. Chen
- BiologyAlderson Broaddus UniversityPhilippiWV
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Friedman JR, Nolan NA, Brown KC, Miles SL, Akers AT, Colclough KW, Seidler JM, Rimoldi JM, Valentovic MA, Dasgupta P. Anticancer Activity of Natural and Synthetic Capsaicin Analogs. J Pharmacol Exp Ther 2018; 364:462-473. [PMID: 29246887 PMCID: PMC5803642 DOI: 10.1124/jpet.117.243691] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 12/13/2017] [Indexed: 12/28/2022] Open
Abstract
The nutritional compound capsaicin is the major spicy ingredient of chili peppers. Although traditionally associated with analgesic activity, recent studies have shown that capsaicin has profound antineoplastic effects in several types of human cancers. However, the applications of capsaicin as a clinically viable drug are limited by its unpleasant side effects, such as gastric irritation, stomach cramps, and burning sensation. This has led to extensive research focused on the identification and rational design of second-generation capsaicin analogs, which possess greater bioactivity than capsaicin. A majority of these natural capsaicinoids and synthetic capsaicin analogs have been studied for their pain-relieving activity. Only a few of these capsaicin analogs have been investigated for their anticancer activity in cell culture and animal models. The present review summarizes the current knowledge of the growth-inhibitory activity of natural capsaicinoids and synthetic capsaicin analogs. Future studies that examine the anticancer activity of a greater number of capsaicin analogs represent novel strategies in the treatment of human cancers.
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Affiliation(s)
- Jamie R Friedman
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Nicholas A Nolan
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Sarah L Miles
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Austin T Akers
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Kate W Colclough
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Jessica M Seidler
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - John M Rimoldi
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Toxicology Research Cluster, Joan C. Edwards School of Medicine, Marshall University, Huntington, West Virginia (J.R.F., N.A.N., S.L.M., K.C.B., A.T.A., K.W.C., J.M.S., M.A.V., P.D.); and Department of Biomolecular Sciences, School of Pharmacy, University of Mississippi, University, Mississippi (J.M.R.)
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Abstract
The purpose of this study was to identify variables—that is, demographic factors (age, history of back pain, body mass index [BMI], and waist circumference), occupational stress, job satisfaction, perceived supervisor support, and physical fitness—that predict back pain in firefighters. Firefighters, an occupational group at high risk for back injury, perform many job tasks under hazardous work conditions. A nonexperimental, correlational design was used to study a convenience sample of 298 male firefighters who completed study questionnaires. Almost one third (30.20%) of the firefighters reported current back pain. The set of factors that predicted current back pain in firefighters included occupational stress, age, history of back pain, and BMI—pseudo R2 = .351. Further studies should validate the model and explore relationships among perceived supervisor support, occupational stress, and job satisfaction in other occupational groups, including nurses and police officers.
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Rankin GO, Tyree C, Pope D, Tate J, Racine C, Anestis DK, Brown KC, Dial M, Valentovic MA. Role of Free Radicals and Biotransformation in Trichloronitrobenzene-Induced Nephrotoxicity In Vitro. Int J Mol Sci 2017; 18:ijms18061165. [PMID: 28561793 PMCID: PMC5485989 DOI: 10.3390/ijms18061165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/12/2017] [Accepted: 05/24/2017] [Indexed: 11/25/2022] Open
Abstract
This study determined the comparative nephrotoxic potential of four trichloronitrobenzenes (TCNBs) (2,3,4-; 2,4,5-; 2,4,6-; and 3,4,5-TCNB) and explored the effects of antioxidants and biotransformation inhibitors on TCNB-induced cytotoxicity in isolated renal cortical cells (IRCC) from male Fischer 344 rats. IRCC were incubated with a TCNB up to 1.0 mM for 15–120 min. Pretreatment with an antioxidant or cytochrome P450 (CYP), flavin monooxygenase (FMO), or peroxidase inhibitor was used in some experiments. Among the four TCNBs, the order of decreasing nephrotoxic potential was approximately 3,4,5- > 2,4,6- > 2,3,4- > 2,4,5-TCNB. The four TCNBs exhibited a similar profile of attenuation of cytotoxicity in response to antioxidant pretreatments. 2,3,4- and 3,4,5-TCNB cytotoxicity was attenuated by most of the biotransformation inhibitors tested, 2,4,5-TCNB cytotoxicity was only inhibited by isoniazid (CYP 2E1 inhibitor), and 2,4,6-TCNB-induced cytotoxicity was inhibited by one CYP inhibitor, one FMO inhibitor, and one peroxidase inhibitor. All of the CYP specific inhibitors tested offered some attenuation of 3,4,5-TCNB cytotoxicity. These results indicate that 3,4,5-TCNB is the most potent nephrotoxicant, free radicals play a role in the TCNB cytotoxicity, and the role of biotransformation in TCNB nephrotoxicity in vitro is variable and dependent on the position of the chloro groups.
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Affiliation(s)
- Gary O Rankin
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Connor Tyree
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Deborah Pope
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Jordan Tate
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Christopher Racine
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Dianne K Anestis
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Mason Dial
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
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Friedman JR, Perry HE, Brown KC, Gao Y, Lin J, Stevenson CD, Hurley JD, Nolan NA, Akers AT, Chen YC, Denning KL, Brown LG, Dasgupta P. Capsaicin synergizes with camptothecin to induce increased apoptosis in human small cell lung cancers via the calpain pathway. Biochem Pharmacol 2017; 129:54-66. [PMID: 28104436 DOI: 10.1016/j.bcp.2017.01.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/11/2017] [Indexed: 12/20/2022]
Abstract
Small cell lung cancer (SCLC) is characterized by excellent initial response to chemotherapy and radiation therapy with a majority of the patients showing tumor shrinkage and even remission. However, the challenge with SCLC therapy is that patients inevitably relapse and subsequently do not respond to the first line treatment. Recent clinical studies have investigated the possibility of camptothecin-based combination therapy as first line treatment for SCLC patients. Conventionally, camptothecin is used for recurrent SCLC and has poor survival outcomes. Therefore, drugs which can improve the therapeutic index of camptothecin should be valuable for SCLC therapy. Extensive evidence shows that nutritional compounds like capsaicin (the spicy compound of chili peppers) can improve the anti-cancer activity of chemotherapeutic drugs in both cell lines and animal models. Statistical analysis shows that capsaicin synergizes with camptothecin to enhance apoptosis of human SCLC cells. The synergistic activity of camptothecin and capsaicin is observed in both classical and variant SCLC cell lines and, in vivo, in human SCLC tumors xenotransplanted on chicken chorioallantoic membrane (CAM) models. The synergistic activity of capsaicin and camptothecin are mediated by elevation of intracellular calcium and the calpain pathway. Our data foster hope for novel nutrition based combination therapies in SCLC.
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Affiliation(s)
- Jamie R Friedman
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Haley E Perry
- 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
| | - Ying Gao
- Department of Biology, Alderson Broaddus University, Philippi, WV 26416, United States
| | - Ju Lin
- Department of Biology, Alderson Broaddus University, Philippi, WV 26416, United States
| | - Cathyrn D Stevenson
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - John D Hurley
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Nicholas A Nolan
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Austin T Akers
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Yi Charlie Chen
- Department of Biology, Alderson Broaddus University, Philippi, WV 26416, United States
| | - Krista L Denning
- Department of Pathology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, United States
| | - Linda G Brown
- Department of Pathology, 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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Abstract
Objective: The principal objective was to examine pain disability (the degree to which chronic pain interferes with daily activities) among older adults with arthritis. Specifically, answers to two research questions were sought: (a) Does psychological distress reliably predict pain disability; and (b) do certain theoretically important host, sociodemographic, and health-related factors reliably predict pain disability? Method: Descriptive, univariate, and multivariate regression analyses were employed to assess key psychosocial, disease, and host factors among the sample ( N =141) of adults with arthritis, aged [UNKNOWN] 50 years old. Results: The resultant regression model accounted for 63.7% (60.0% adjusted) of the variance and was significant at p < .01. Psychological distress, overall health, disease activity, and disease self-efficacy were found to predict pain disability. Discussion: Sample members with greater pain disability experienced heightened psychological distress, poorer perceptions of their overall health, more surgeries, higher unemployment, more intense disease activity, longer disease duration, and lower disease self-efficacy.
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Affiliation(s)
- Nadine T James
- University of Southern Mississippi, and School of Nursing, University of Alabama at Birmingham, NB 310, 1530 3rd Avenue South, Birmingham, AL 35294-1210, USA.
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Hurley JD, Akers AT, Friedman JR, Nolan NA, Brown KC, Dasgupta P. Non-pungent long chain capsaicin-analogs arvanil and olvanil display better anti-invasive activity than capsaicin in human small cell lung cancers. Cell Adh Migr 2016; 11:80-97. [PMID: 27196129 DOI: 10.1080/19336918.2016.1187368] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The nutritional compound capsaicin inhibits the invasion of many types of human cancers. The clinical development of capsaicin as an anti-cancer drug is limited due to its unfavorable side effects like burning sensation, stomach cramps, gut pain and nausea. This study compared the anti-invasive activity of capsaicin to non-pungent long chain capsaicin analogs, namely arvanil and olvanil, in human small cell lung cancer cells. Boyden chamber invasion assays revealed that arvanil and olvanil displayed improved anti-invasive activity relative to capsaicin in human SCLC cells. The results of the Boyden chamber assay were confirmed by the spherical invasion assay, and similar results were obtained. The anti-invasive activity of arvanil, olvanil and capsaicin were independent of TRPV and CB1 receptors. Furthermore, the anti-invasive activity of arvanil, olvanil and capsaicin was mediated by the AMPK pathway. Depletion of AMPK levels by siRNA methodology abrogated the anti-invasive activity of arvanil, olvanil and capsaicin. The non-pungent capsaicin analogs arvanil and olvanil display improved anti-invasive activity relative to capsaicin in human SCLC cells. These agents may represent the second generation of capsaicin-like compounds which are more potent than the parent molecule and have a better side effect profile.
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Affiliation(s)
- John D Hurley
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
| | - Austin T Akers
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
| | - Jamie R Friedman
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
| | - Nicholas A Nolan
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
| | - Kathleen C Brown
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
| | - Piyali Dasgupta
- a Department of Pharmacology, Physiology, and Toxicology , Joan C. Edwards School of Medicine, Marshall University , Huntington , WV , USA
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O'Keefe LC, Brown KC, Frith KH, Heaton KL, Maples EH, Phillips JA, Vance DE. Obesity, Prediabetes, and Perceived Stress in Municipal Workers. Workplace Health Saf 2016; 64:453-461. [PMID: 27026274 DOI: 10.1177/2165079916632771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The primary cause of death for men and women in the United States is heart disease. Obesity and diabetes are major contributors to heart disease, and the risk is worsened in the presence of stress. It is clinically useful to identify predictors of obesity and prediabetes in a working population. The purpose of this current cross-sectional, correlational study was to examine relationships among obesity, prediabetes, and perceived stress in municipal workers using a subset of worksite wellness program data from employees screened in 2010 and 2011. Multiple regression models indicated that age, gender, race, HA1c, shift schedule, physical activity, and occupation were significant predictors of obesity in municipal workers ( p < .01). Prediabetes in municipal workers was predicted by age, Black race, and body mass index (BMI; p < .01). Perceived stress was not a significant predictor of obesity or prediabetes in municipal workers. Overall, the findings of this study provide guidance to occupational health nurses when evaluating individuals in an occupational health setting. Further research is needed to examine relationships among the variables and validate the models.
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Brown KC, Lau JK, Perry HE, Thornhill BA, Stevenson CD, Rollyson WD, Stover CA, Jones DV, Pulliam JF, Dasgupta P. Abstract 1032: The acetylcholine signaling pathway: A novel molecular target for lung cancers. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-1032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Cigarette smoking is a major risk factor for all types of lung cancers. Nicotine, the addictive component of cigarettes, accelerates the growth and angiogenesis of human lung cancers. The biological activity of nicotine is mediated by nicotinic acetylcholine receptors (nAChRs). The endogenous ligand of nAChRs is acetylcholine (ACh). We show that both human SCLCs and NSCLCs contain all proteins of the acetylcholine signaling pathway, namely nAChRs, choline acetyltransferase (ChAT), vesicular acetylcholine transporter (VAChT), choline transporter (ChT1) and acetylcholinesterase (AChE). ACh functions as an autocrine growth factor for human lung cancer cells. Lung adenocarcinoma (LAC), squamous cell carcinoma (SCC-L) and invasive mucinous adenocarcinoma (IMA) express a diverse array of nAChRs. In addition, normal human lung cells also express nAChRs and other ACh signaling proteins. Nicotine amplifies the ACh signaling loop in human lung cancer cells. It increases the levels of alpha7-nAChR subunit in human SCC-Ls. The alpha7-nAChR is responsible for the proliferative and pro-angiogenic activity of nicotine in lung cancer. The level of alpha7-nAChR was analyzed in human SCC-L samples isolated from patients. It was found that the level of alpha7-nAChR in SCC-L patients (who are heavy smokers) was much higher than that of moderate smoker suffering from SCC-Ls. Nicotine was also found to elevate the levels of ChAT and VAChT in human lung cancers. The acetylcholine signaling pathway may be a useful molecular target for the diagnosis and therapy of human lung cancers in smokers. Our results are also relevant to lung cancer patients who are exposed to nicotine via secondhand smoke, nicotine patches, gums or electronic cigarettes.
Citation Format: Kathleen C. Brown, Jamie K. Lau, Haley E. Perry, Brent A. Thornhill, Cathryn D. Stevenson, William D. Rollyson, Cody A. Stover, Dennie V. Jones, Joseph F. Pulliam, Piyali Dasgupta. The acetylcholine signaling pathway: A novel molecular target for lung cancers. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 1032. doi:10.1158/1538-7445.AM2015-1032
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Affiliation(s)
- Kathleen C. Brown
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Jamie K. Lau
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Haley E. Perry
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Brent A. Thornhill
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | | | | | - Cody A. Stover
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Dennie V. Jones
- 2Dana-Farber Cancer Institute at St. Elizabeth's Medical Center, Brighton, MA
| | | | - Piyali Dasgupta
- 1Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
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Hurley JD, Rollyson WD, Stover CA, Brown KC, Perry HE, Stevenson CD, Crabtree CM, Dom AM, Lau JK, Witte TR, Hardman WE, Dasgupta P. Abstract 1678: Bioavailability and anti-tumor activity of capsaicin in human small cell lung cancer. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-1678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The nutritional compound capsaicin has been shown to display anti-neoplastic activity in breast, prostate and colon tumors xenografted in nude mice. Based on these data from other research laboratories, we wanted to determine the bioavailability of capsaicin in nude mice in vivo. We found that capsaicin was rapidly metabolized primarily in the liver. The bioavailability of intact capsaicin was highest in the lung. Therefore, we hypothesized that capsaicin should suppress the growth of lung tumors. We found that capsaicin induced robust apoptosis in human SCLC cell lines. Capsaicin decreased the growth rates of human SCLC tumors in two in vivo models, namely the CAM model and the nude mouse model. HPLC studies showed intact capsaicin in the tumors excised from nude mice. The heat-sensation activity of capsaicin is mediated by the transient receptor potential vanilloid (TRPV) family of proteins. Capsaicin functions as an agonist of the TRPV1 receptor. The apoptotic activity of capsaicin was found to be mediated by TRPV6 and not TRPV1. Preliminary data shows that capsaicin increases the expression of the TRPV6 receptor, causing apoptosis in human SCLCs.
Citation Format: John D. Hurley, William D. Rollyson, Cody A. Stover, Kathleen C. Brown, Haley E. Perry, Cathryn D. Stevenson, Clayton M. Crabtree, Aaron M. Dom, Jamie K. Lau, Theodore R. Witte, W E. Hardman, Piyali Dasgupta. Bioavailability and anti-tumor activity of capsaicin in human small cell lung cancer. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 1678. doi:10.1158/1538-7445.AM2015-1678
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Affiliation(s)
- John D. Hurley
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | | | - Cody A. Stover
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Kathleen C. Brown
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Haley E. Perry
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | | | | | - Aaron M. Dom
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Jamie K. Lau
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Theodore R. Witte
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - W E. Hardman
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Piyali Dasgupta
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
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Dasgupta P, Brown KC, Lau JK, Dom AM, Thornhill BA, Crabtree CM, Witte TR, Hardman WE, Stover CA, Carpenter AB, Chen YC. Abstract 5229: Disruption of the acetylcholine signaling pathway suppresses the growth and angiogenesis of human lung cancers. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-5229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Cigarette smoking bears a strong association with the development of lung cancer. Nicotine is the addictive component of cigarettes. Several convergent studies show that nicotine facilitates the growth and angiogenesis of human lung cancers. The biological activity of nicotine is mediated by nicotinic acetylcholine receptors (nAChRs). The endogenous ligand of nAChRs is acetylcholine (ACh). Data from our laboratory and other research groups show that lung cancers express all of the genes for synthesis, transport and degradation of ACh. These include nAChRs, choline acetyltransferase (ChAT), vesicular acetylcholine transporter (VAChT), choline transporter (ChT1) and acetylcholinesterase (AChE). Nicotine upregulates the ACh-signaling loop in human lung cancer cells. Therefore, we conjectured that disruption of ACh-signaling pathway should suppress the growth of human cancers. We show that alpha7-nAChR antagonists robustly suppress angiogenesis in human lung and retinal microvascular endothelial cells. The anti-angiogenic activity of alpha7-nAChR antagonists was also observed in chicken chorioallantoic membrane (CAM) and nude mouse models. Similarly, vesamicol, a small molecule antagonist of VAChT, decreases nicotine-induced tumor growth in human NSCLCs. Our studies suggest that the acetylcholine signaling pathway may be have potential applications in the therapy of human lung cancers. Our results are also relevant to lung cancer patients who are exposed to nicotine via secondhand smoke, nicotine patches, gums or electronic cigarettes.
Citation Format: Piyali Dasgupta, Kathleen C. Brown, Jamie K. Lau, Aaron M. Dom, Brent A. Thornhill, Clayton M. Crabtree, Theodore R. Witte, W E. Hardman, Cody A. Stover, A B. Carpenter, Yi C. Chen. Disruption of the acetylcholine signaling pathway suppresses the growth and angiogenesis of human lung cancers. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 5229. doi:10.1158/1538-7445.AM2015-5229
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Affiliation(s)
- Piyali Dasgupta
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | | | - Jamie K. Lau
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | - Aaron M. Dom
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | | | | | | | - W E. Hardman
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | - Cody A. Stover
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | - A B. Carpenter
- 1Marshall University Edwards School of Medicine, Huntington, WV
| | - Yi C. Chen
- 2Alderson-Broaddus University, Philippi, WV
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Eskew MN, Brown KC, Dasgupta P. Abstract 5094: Capsaicin inhibits invasion of human non-small cell lung cancer cells in a TRPV1 receptor independent manner. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-5094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Non-small cell lung cancer (NSCLC) comprises 85% of lung cancer cases and is characterized by aggressive clinical course and rapid metastasis. One of the challenges of NSCLCs is that the tumor has frequently metastasized to distant organs at the time of diagnosis. The invasion of tumor cells is a key step in the metastatic cascade. Dietary compounds like capsaicin have been known to cause apoptosis in human NSCLCs. However, the effect of capsaicin on the pro-invasive ability of NSCLC cells has not yet been studied. The present study investigates the impact of capsaicin on the invasion of human NSCLCs. Boyden chamber assays show that capsaicin inhibits the invasion of NSCLC in a concentration-dependent and time-dependent manner. The pro-invasive activity of capsaicin was verified by a second invasion assay, the spherical invasion assay, and similar results were obtained. The anti-invasive activity of capsaicin was independent of its growth-inhibitory activity and manifested at a lower concentration. The heat-sensation activity of capsaicin is mediated by the transient receptor potential vanilloid (TRPV) family of proteins. Capsaicin functions as an agonist of the TRPV1 receptor. However, the anti-invasive activity of capsaicin was not affected by the generalized TRPV receptor antagonist ruthenium red. Specific antagonists to TRPV1, namely capsazepine and SB36671, did not reverse the anti-invasive activity of capsaicin. Taken together, capsaicin potently suppresses invasion of human NSCLCs independent of the TRPV receptor family.
Citation Format: Matthew N. Eskew, Kathleen C. Brown, Piyali Dasgupta. Capsaicin inhibits invasion of human non-small cell lung cancer cells in a TRPV1 receptor independent manner. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 5094. doi:10.1158/1538-7445.AM2015-5094
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Affiliation(s)
- Matthew N. Eskew
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Kathleen C. Brown
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
| | - Piyali Dasgupta
- Joan C. Edwards School of Medicine, Marshall University, Huntington, WV
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Chen J, Chen AY, Huang H, Ye X, Rollyson WD, Perry HE, Brown KC, Rojanasakul Y, Rankin GO, Dasgupta P, Chen YC. The flavonoid nobiletin inhibits tumor growth and angiogenesis of ovarian cancers via the Akt pathway. Int J Oncol 2015; 46:2629-38. [PMID: 25845666 PMCID: PMC4441297 DOI: 10.3892/ijo.2015.2946] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 03/19/2015] [Indexed: 11/24/2022] Open
Abstract
Despite its importance, the death rate of ovarian cancer has remained unchanged over the past five decades, demanding an improvement in prevention and treatment of this malignancy. With no known carcinogens, targeted prevention is currently unavailable, and efforts in early detection of this malignancy by screening biomarkers have failed. The inhibition of angiogenesis, also known as angioprevention, is a promising strategy to limit the growth of solid tumors, including ovarian cancers. Nobiletin, a polymethoxy flavonoid compound isolated from the tiansheng plant, has been shown to inhibit the growth of multiple types of human cancers. However, there are no reports involving the effect on nobiletin on human ovarian cancer. The present report shows that nobiletin potently decreases the viability of ovarian cancer cells in vitro. However, nobiletin does not affect the viability of normal ovarian epithelial cells at <40 μM. The antitumor activity of nobiletin was also observed in athymic mouse models and in chicken chorioallantoic membrane (CAM) models. The anti-neoplastic activity of nobiletin was due to its ability to inhibit angiogenesis. We also studied the molecular mechanisms by which nobiletin suppresses angiogenesis. We observed that nobiletin inhibits secretion of the key angiogenesis mediators, Akt, HIF-1α, NF-κB and vascular epithelial growth factor (VEGF) by ovarian cancer cells. Transient transfection experiments showed that nobiletin inhibits production of HIF-1α by downregulation of Akt. Such decreased levels of HIF-1α were responsible for nobiletin-induced suppression of VEGF. Our data suggest that nobiletin may be a promising anti-angiogenic agent relevant for therapy of ovarian cancers.
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Affiliation(s)
- Jianchu Chen
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - Allen Y Chen
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Haizhi Huang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Zhejiang University, P.R. China
| | - William D Rollyson
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Haley E Perry
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Kathleen C Brown
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Yon Rojanasakul
- Department of Pharmaceutical Science, West Virginia University, Morgantown, WV 26506, USA
| | - Gary O Rankin
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Piyali Dasgupta
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Yi Charlie Chen
- College of Science, Technology and Mathematics, Alderson Broaddus University, Philippi, WV 26416, USA
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Lau JK, Brown KC, Dom AM, Witte TR, Thornhill BA, Crabtree CM, Perry HE, Brown JM, Ball JG, Creel RG, Damron CL, Rollyson WD, Stevenson CD, Hardman WE, Valentovic MA, Carpenter AB, Dasgupta P. Capsaicin induces apoptosis in human small cell lung cancer via the TRPV6 receptor and the calpain pathway. Apoptosis 2015; 19:1190-201. [PMID: 24878626 DOI: 10.1007/s10495-014-1007-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Capsaicin, the pungent ingredient of chili peppers, displays potent anti-neoplastic activity in a wide array of human cancer cells. The present manuscript examines the signaling pathways underlying the apoptotic activity of capsaicin in human small cell lung cancer (SCLC) in vitro and in vivo. Studies in neuronal cells show that capsaicin exerts its biological activity via the transient receptor potential vanilloid (TRPV) superfamily of cation-channel receptors. The TRPV family is comprised of six members (TRPV1-6). Capsaicin is a known agonist of the TRPV1 receptor. We observed that capsaicin-induced apoptosis in human SCLC cells was mediated via the TRPV receptor family; however it was independent of TRPV1. Surprisingly, the apoptotic activity of capsaicin required the TRPV6 receptor. Depletion of TRPV6 receptor by siRNA methodology abolished the apoptotic activity of capsaicin in SCLC cells. Immunostaining and ELISA showed that TRPV6 receptor was robustly expressed on human SCLC tissues (from patients) and SCLC cell lines but almost absent in normal lung tissues. This correlates with our results that capsaicin induced very little apoptosis in normal lung epithelial cells. The pro-apoptotic activity of capsaicin was mediated by the intracellular calcium and calpain pathway. The treatment of human SCLC cells with capsaicin increased the activity of calpain 1 and 2 by threefold relative to untreated SCLC cells. Such calpain activation, in response to capsaicin, was downstream of the TRPV6 receptor. Taken together, our data provide insights into the mechanism underlying the apoptotic activity of capsaicin in human SCLCs.
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Affiliation(s)
- Jamie K Lau
- Department of Pharmacology, Physiology and Toxicology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, USA
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