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Cheng S, Dong C, Ma Y, Xu X, Zhao Y. Skeletal Transformations of Terpenoid Forskolin Employing an Oxidative Rearrangement Strategy. J Org Chem 2024; 89:5741-5745. [PMID: 38568052 DOI: 10.1021/acs.joc.4c00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The skeletal transformations of diterpenoid forskolin were achieved by employing an oxidative rearrangement strategy. A library of 36 forskolin analogues with structural diversity was effectively generated. Computational analysis shows that 12 CTD compounds with unique scaffolds and ring systems were produced during the course of this work.
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Affiliation(s)
- Shihao Cheng
- School of Pharmacy, Nantong University, Nantong 226001, China
| | - Chenhu Dong
- School of Pharmacy, Nantong University, Nantong 226001, China
| | - Yujie Ma
- School of Pharmacy, Nantong University, Nantong 226001, China
| | - Xiaoyu Xu
- School of Pharmacy, Nantong University, Nantong 226001, China
| | - Yu Zhao
- School of Pharmacy, Nantong University, Nantong 226001, China
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2
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Chandra Jena B, Flaherty DP, O'Brien VP, Watts VJ. Biochemical pharmacology of adenylyl cyclases in cancer. Biochem Pharmacol 2024:116160. [PMID: 38522554 DOI: 10.1016/j.bcp.2024.116160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Globally, despite extensive research and pharmacological advancement, cancer remains one of the most common causes of mortality. Understanding the signaling pathways involved in cancer progression is essential for the discovery of new drug targets. The adenylyl cyclase (AC) superfamily comprises glycoproteins that regulate intracellular signaling and convert ATP into cyclic AMP, an important second messenger. The present review highlights the involvement of ACs in cancer progression and suppression, broken down for each specific mammalian AC isoform. The precise mechanisms by which ACs contribute to cancer cell proliferation and invasion are not well understood and are variable among cancer types; however, AC overactivation, along with that of downstream regulators, presents a potential target for novel anticancer therapies. The expression patterns of ACs in numerous cancers are discussed. In addition, we highlight inhibitors of AC-related signaling that are currently under investigation, with a focus on possible anti-cancer strategies. Recent discoveries with small molecules regarding more direct modulation AC activity are also discussed in detail. A more comprehensive understanding of different components in AC-related signaling could potentially lead to the development of novel therapeutic strategies for personalized oncology and might enhance the efficacy of chemoimmunotherapy in the treatment of various cancers.
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Affiliation(s)
- Bikash Chandra Jena
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, USA
| | - Daniel P Flaherty
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, USA
| | - Valerie P O'Brien
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, USA.
| | - Val J Watts
- Borch Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, USA.
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3
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Salzillo A, Ragone A, Spina A, Naviglio S, Sapio L. Forskolin affects proliferation, migration and Paclitaxel-mediated cytotoxicity in non-small-cell lung cancer cell lines via adenylyl cyclase/cAMP axis. Eur J Cell Biol 2023; 102:151292. [PMID: 36736051 DOI: 10.1016/j.ejcb.2023.151292] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/27/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Non-Small-Cell Lung Cancer (NSCLC) is considered one of the most frequently diagnosed cancers and the leading cause of cancer-related deaths worldwide. Despite the undoubted therapeutic advances that have occurred in clinical practice over time, due to its high degree in both heterogeneity and resistance, NSCLC remains largely incurable. As a natural cAMP elevating agent, Forskolin has shown anti-cancer properties in different tumor types, thus supposing its possible usage in treating malignancies. In this study, we investigated the Forskolin outcome in H1299 and A549 NSCLC cell lines, either alone or in combination with Paclitaxel. We proved that Forskolin impairs cell growth and migration ability of these cells, concurrently. Albeit with a different extent between H1299 and A549, changes in cell-cycle progression and epithelial-mesenchymal markers were observed in response to Forskolin administration. Interestingly, comparable cell growth impairment was also obtained with the cAMP phosphodiesterase inhibitor IBMX, while the employment of adenylyl cyclase inhibitor SQ22536 counteracted, at least in part, the Forskolin-mediated anticancer effects. Besides as a single agent, we also demonstrated that Forskolin strongly enhances Paclitaxel-induced cytotoxicity, affecting cell death mainly via apoptosis induction. Notably, H89-mediated protein kinase A (PKA) inhibition further deteriorated the combination outcome. Altogether, our data designate Forskolin as a possible anticancer molecule in NSCLC, and recognize the adenylyl cyclase/cAMP axis as one of the pathways involved in. Although achieved at preclinical stage, our findings encourage the design of future studies aimed at further exploring the Forskolin employment in NSCLC treatment.
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Affiliation(s)
- Alessia Salzillo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Angela Ragone
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Annamaria Spina
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Silvio Naviglio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy.
| | - Luigi Sapio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
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4
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Guo R, Liu T, Shasaltaneh MD, Wang X, Imani S, Wen Q. Targeting Adenylate Cyclase Family: New Concept of Targeted Cancer Therapy. Front Oncol 2022; 12:829212. [PMID: 35832555 PMCID: PMC9271773 DOI: 10.3389/fonc.2022.829212] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 05/26/2022] [Indexed: 12/18/2022] Open
Abstract
The adenylate cyclase (ADCY) superfamily is a group of glycoproteins regulating intracellular signaling. ADCYs act as key regulators in the cyclic adenosine monophosphate (cAMP) signaling pathway and are related to cell sensitivity to chemotherapy and ionizing radiation. Many members of the superfamily are detectable in most chemoresistance cases despite the complexity and unknownness of the specific mechanism underlying the role of ADCYs in the proliferation and invasion of cancer cells. The overactivation of ADCY, as well as its upstream and downstream regulators, is implicated as a major potential target of novel anticancer therapies and markers of exceptional responders to chemotherapy. The present review focuses on the oncogenic functions of the ADCY family and emphasizes the possibility of the mediating roles of deleterious nonsynonymous single nucleotide polymorphisms (nsSNPs) in ADCY as a prognostic therapeutic target in modulating resistance to chemotherapy and immunotherapy. It assesses the mediating roles of ADCY and its counterparts as stress regulators in reprogramming cancer cell metabolism and the tumor microenvironment. Additionally, the well-evaluated inhibitors of ADCY-related signaling, which are under clinical investigation, are highlighted. A better understanding of ADCY-induced signaling and deleterious nsSNPs (p.E1003K and p.R1116C) in ADCY6 provides new opportunities for developing novel therapeutic strategies in personalized oncology and new approaches to enhance chemoimmunotherapy efficacy in treating various cancers.
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Affiliation(s)
- Rui Guo
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Tian Liu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | | | - Xuan Wang
- China Regional Research Center, International Centre for Genetic Engineering and Biotechnology Taizhou, Jiangsu, China
| | - Saber Imani
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- China Regional Research Center, International Centre for Genetic Engineering and Biotechnology Taizhou, Jiangsu, China
- *Correspondence: Saber Imani, ; QingLian Wen,
| | - QingLian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: Saber Imani, ; QingLian Wen,
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5
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Rust MB, Marcello E. Disease association of cyclase-associated protein (CAP): Lessons from gene-targeted mice and human genetic studies. Eur J Cell Biol 2022; 101:151207. [PMID: 35150966 DOI: 10.1016/j.ejcb.2022.151207] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 11/03/2022] Open
Abstract
Cyclase-associated protein (CAP) is an actin binding protein that has been initially described as partner of the adenylyl cyclase in yeast. In all vertebrates and some invertebrate species, two orthologs, named CAP1 and CAP2, have been described. CAP1 and CAP2 are characterized by a similar multidomain structure, but different expression patterns. Several molecular studies clarified the biological function of the different CAP domains, and they shed light onto the mechanisms underlying CAP-dependent regulation of actin treadmilling. However, CAPs are crucial elements not only for the regulation of actin dynamics, but also for signal transduction pathways. During recent years, human genetic studies and the analysis of gene-targeted mice provided important novel insights into the physiological roles of CAPs and their involvement in the pathogenesis of several diseases. In the present review, we summarize and discuss recent progress in our understanding of CAPs' physiological functions, focusing on heart, skeletal muscle and central nervous system as well as their involvement in the mechanisms controlling metabolism. Remarkably, loss of CAPs or impairment of CAPs-dependent pathways can contribute to the pathogenesis of different diseases. Overall, these studies unraveled CAPs complexity highlighting their capability to orchestrate structural and signaling pathways in the cells.
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Affiliation(s)
- Marco B Rust
- Molecular Neurobiology Group, Institute of Physiological Chemistry, Philipps-University of Marburg, 35032 Marburg, Germany; Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus-Liebig-University Giessen, 35032 Marburg, Germany; DFG Research Training Group 'Membrane Plasticity in Tissue Development and Remodeling', GRK 2213, Philipps-University of Marburg, 35032 Marburg, Germany.
| | - Elena Marcello
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, 20133 Milan, Italy.
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6
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Fang S, Xu X, Zhong L, Wang AQ, Gao WL, Lu M, Yin ZS. Bioinformatics-based study to identify immune infiltration and inflammatory-related hub genes as biomarkers for the treatment of rheumatoid arthritis. Immunogenetics 2021; 73:435-448. [PMID: 34477936 DOI: 10.1007/s00251-021-01224-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/05/2021] [Indexed: 10/20/2022]
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease whose principal pathological change is aggressive chronic synovial inflammation; however, the specific etiology and pathogenesis have not been fully elucidated. We downloaded the synovial tissue gene expression profiles of four human knees from the Gene Expression Omnibus database, analyzed the differentially expressed genes in the normal and RA groups, and assessed their enrichment in functions and pathways using bioinformatics methods and the STRING online database to establish protein-protein interaction networks. Cytoscape software was used to obtain 10 hub genes; receiver operating characteristic (ROC) curves were calculated for each hub gene and differential expression analysis of the two groups of hub genes. The CIBERSORT algorithm was used to impute immune infiltration. We identified the signaling pathways that play important roles in RA and 10 hub genes: Ccr1, Ccr2, Ccr5, Ccr7, Cxcl5, Cxcl6, Cxcl13, Ccl13, Adcy2, and Pnoc. The diagnostic value of these 10 hub genes for RA was confirmed using ROC curves and expression analysis. Adcy2, Cxcl13, and Ccr5 are strongly associated with RA development. The study also revealed that the differential infiltration profile of different inflammatory immune cells in the synovial tissue of RA is an extremely critical factor in RA progression. This study may contribute to the understanding of signaling pathways and biological processes associated with RA and the role of inflammatory immune infiltration in the pathogenesis of RA. In addition, this study shows that Adcy2, Cxcl13, and Ccr5 have the potential to be biomarkers for RA treatment.
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Affiliation(s)
- Sheng Fang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China
| | - Xin Xu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China
| | - Lin Zhong
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China.,Department of Orthopedics, The Third Affiliated Hospital of Anhui Medical University, 390 Huaihe Road, Hefei, Anhui Province, 230061, People's Republic of China
| | - An-Quan Wang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China
| | - Wei-Lu Gao
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China
| | - Ming Lu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China
| | - Zong-Sheng Yin
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, Anhui Province, 230022, People's Republic of China.
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7
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Zhang X, Pizzoni A, Hong K, Naim N, Qi C, Korkhov V, Altschuler DL. CAP1 binds and activates adenylyl cyclase in mammalian cells. Proc Natl Acad Sci U S A 2021; 118:e2024576118. [PMID: 34099549 PMCID: PMC8214675 DOI: 10.1073/pnas.2024576118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
CAP1 (Cyclase-Associated Protein 1) is highly conserved in evolution. Originally identified in yeast as a bifunctional protein involved in Ras-adenylyl cyclase and F-actin dynamics regulation, the adenylyl cyclase component seems to be lost in mammalian cells. Prompted by our recent identification of the Ras-like small GTPase Rap1 as a GTP-independent but geranylgeranyl-specific partner for CAP1, we hypothesized that CAP1-Rap1, similar to CAP-Ras-cyclase in yeast, might play a critical role in cAMP dynamics in mammalian cells. In this study, we report that CAP1 binds and activates mammalian adenylyl cyclase in vitro, modulates cAMP in live cells in a Rap1-dependent manner, and affects cAMP-dependent proliferation. Utilizing deletion and mutagenesis approaches, we mapped the interaction of CAP1-cyclase with CAP's N-terminal domain involving critical leucine residues in the conserved RLE motifs and adenylyl cyclase's conserved catalytic loops (e.g., C1a and/or C2a). When combined with a FRET-based cAMP sensor, CAP1 overexpression-knockdown strategies, and the use of constitutively active and negative regulators of Rap1, our studies highlight a critical role for CAP1-Rap1 in adenylyl cyclase regulation in live cells. Similarly, we show that CAP1 modulation significantly affected cAMP-mediated proliferation in an RLE motif-dependent manner. The combined study indicates that CAP1-cyclase-Rap1 represents a regulatory unit in cAMP dynamics and biology. Since Rap1 is an established downstream effector of cAMP, we advance the hypothesis that CAP1-cyclase-Rap1 represents a positive feedback loop that might be involved in cAMP microdomain establishment and localized signaling.
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Affiliation(s)
- Xuefeng Zhang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Alejandro Pizzoni
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Kyoungja Hong
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Nyla Naim
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Chao Qi
- Institute of Molecular Biology and Biophysics, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Volodymyr Korkhov
- Institute of Molecular Biology and Biophysics, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Daniel L Altschuler
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261;
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8
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Cross-Talk Between the Adenylyl Cyclase/cAMP Pathway and Ca 2+ Homeostasis. Rev Physiol Biochem Pharmacol 2021; 179:73-116. [PMID: 33398503 DOI: 10.1007/112_2020_55] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cyclic AMP and Ca2+ are the first second or intracellular messengers identified, unveiling the cellular mechanisms activated by a plethora of extracellular signals, including hormones. Cyclic AMP generation is catalyzed by adenylyl cyclases (ACs), which convert ATP into cAMP and pyrophosphate. By the way, Ca2+, as energy, can neither be created nor be destroyed; Ca2+ can only be transported, from one compartment to another, or chelated by a variety of Ca2+-binding molecules. The fine regulation of cytosolic concentrations of cAMP and free Ca2+ is crucial in cell function and there is an intimate cross-talk between both messengers to fine-tune the cellular responses. Cancer is a multifactorial disease resulting from a combination of genetic and environmental factors. Frequent cases of cAMP and/or Ca2+ homeostasis remodeling have been described in cancer cells. In those tumoral cells, cAMP and Ca2+ signaling plays a crucial role in the development of hallmarks of cancer, including enhanced proliferation and migration, invasion, apoptosis resistance, or angiogenesis. This review summarizes the cross-talk between the ACs/cAMP and Ca2+ intracellular pathways with special attention to the functional and reciprocal regulation between Orai1 and AC8 in normal and cancer cells.
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9
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Singh D, Singh P, Pradhan A, Srivastava R, Sahoo SK. Reprogramming Cancer Stem-like Cells with Nanoforskolin Enhances the Efficacy of Paclitaxel in Targeting Breast Cancer. ACS APPLIED BIO MATERIALS 2021; 4:3670-3685. [PMID: 35014452 DOI: 10.1021/acsabm.1c00141] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cancer stem-like cells (CSCs) have emerged as an important target for breast cancer therapy owing to their self-renewability, proliferation, and elevated chemoresistance properties. Here, we present a strategy of eliminating CSCs by differentiation therapy where "forced differentiation" reprograms CSCs so that they lose their intrinsic properties and become susceptible for conventional chemotherapeutic drugs. In this study, we report that a conventional chemotherapeutic paclitaxel enhances the stemness of CSCs, while a phytochemical forskolin being essentially nontoxic to CSCs possesses the intrinsic ability to reprogram them. To achieve simultaneous targeting of CSCs and bulk tumor cells, we used a co-delivery system where liquid crystal nanoparticles (LCN) were co-encapsulated with both paclitaxel and forskolin. LCN showed higher uptake, retention, and penetration potential in CSCs overcoming their high drug efflux property. Moreover, LCN improved the pharmacokinetic parameters of forskolin, which otherwise had very low retention and bioavailability. Forskolin-loaded LCN forced CSCs to exit from their mesenchymal state, which reduced their stemness and chemosensitized them while inhibiting E-cadherin-mediated survival and tumor-initiating potential as well as reversing paclitaxel-induced stemness. We further showed that upon administration of paclitaxel and forskolin co-loaded LCN to an orthotropic xenograft mouse model, the nanomedicine showed enhanced passive tumor targeting capability with very potent antitumor activity that eradicated small solid tumor in a single dose and showed no sign of tumor relapse or systemic toxicity over a long period. Overall, these findings give a proof of concept that co-delivery of forskolin and paclitaxel in a single nanoformulation can achieve overall tumor targeting where forskolin can efficiently reprogram/differentiate CSCs and paclitaxel can induce cytotoxicity in both differentiated CSCs and bulk tumor cells simultaneously. Hence, this study can provide a nanoformulation that can offer an efficient strategy for cancer therapy.
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Affiliation(s)
- Deepika Singh
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, Odisha, India
| | - Priya Singh
- Institute of Life Sciences, Nalco Square, Bhubaneswar 751023, Odisha, India
| | - Arpan Pradhan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai 400076, India
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10
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AYDEMİR ÇOBAN E, TECİMEL D, KAŞIKCI E, BAYRAK ÖF, ŞAHİN F. E-cadherin might be a stage-dependent modulator in aggressiveness in pancreatic cancer cells. Turk J Biol 2020; 44:230-237. [PMID: 33110361 PMCID: PMC7585161 DOI: 10.3906/biy-1912-60] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 08/13/2020] [Indexed: 11/03/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) pathology is known for its uncontrollable progress due to highly invasive characteristics and refractory behavior against existing chemotherapies. The aberrant expression of CDH1 (expresses the protein E-cadherin) is associated with increased overall survival in various cancers, however, E-cadherin expression in PDAC progression has remained elusive. We investigated the impact of exogenously elevated E-cadherin levels on the tumorigenicity of transduced low grade and metastatic PDAC cell lines, Panc-1 and AsPC-1, respectively. Constitutive expression of E-cadherin promoted a more hybrid E/M state in AsPC-1 cells, while it was associated with the acquisition of a more epithelial-like state in Panc1 cells. Our study suggests that E-cadherin may play differential roles in determining the metastatic characteristics of primary and metastatic pancreatic cancer cells.
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Affiliation(s)
- Esra AYDEMİR ÇOBAN
- Department of Genetics and Bioengineering, Engineering Faculty, Yeditepe University, İstanbulTurkey
| | - Didem TECİMEL
- Department of Genetics and Bioengineering, Engineering Faculty, Yeditepe University, İstanbulTurkey
- Department of Medical Genetics, Faculty of Medicine, Yeditepe University, Yeditepe University Hospital, İstanbulTurkey
| | - Ezgi KAŞIKCI
- Department of Genetics and Bioengineering, Engineering Faculty, Yeditepe University, İstanbulTurkey
- Department of Microbiology & Immunology, Albert Einstein College of Medicine, New York, NYUSA
| | - Ömer Faruk BAYRAK
- Department of Genetics and Bioengineering, Engineering Faculty, Yeditepe University, İstanbulTurkey
- Department of Medical Genetics, Faculty of Medicine, Yeditepe University, Yeditepe University Hospital, İstanbulTurkey
| | - Fikrettin ŞAHİN
- Department of Genetics and Bioengineering, Engineering Faculty, Yeditepe University, İstanbulTurkey
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11
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Profiles of overall survival-related gene expression-based risk signature and their prognostic implications in clear cell renal cell carcinoma. Biosci Rep 2020; 40:226068. [PMID: 32789468 PMCID: PMC7494988 DOI: 10.1042/bsr20200492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
The present work aimed to evaluate the prognostic value of overall survival (OS)-related genes in clear cell renal cell carcinoma (ccRCC) and to develop a nomogram for clinical use. Transcriptome data from The Cancer Genome Atlas (TCGA) were collected to screen differentially expressed genes (DEGs) between ccRCC patients with OS > 5 years (149 patients) and those with <1 year (52 patients). In TCGA training set (265 patients), seven DEGs (cytochrome P450 family 3 subfamily A member 7 (CYP3A7), contactin-associated protein family member 5 (CNTNAP5), adenylate cyclase 2 (ADCY2), TOX high mobility group box family member 3 (TOX3), plasminogen (PLG), enamelin (ENAM), and collagen type VII α 1 chain (COL7A1)) were further selected to build a prognostic risk signature by the least absolute shrinkage and selection operator (LASSO) Cox regression model. Survival analysis confirmed that the OS in the high-risk group was dramatically shorter than their low-risk counterparts. Next, univariate and multivariate Cox regression revealed the seven genes-based risk score, age, and Tumor, lymph Node, and Metastasis staging system (TNM) stage were independent prognostic factors to OS, based on which a novel nomogram was constructed and validated in both TCGA validation set (265 patients) and the International Cancer Genome Consortium cohort (ICGC, 84 patients). A decent predictive performance of the nomogram was observed, the C-indices and corresponding 95% confidence intervals of TCGA training set, validation set, and ICGC cohort were 0.78 (0.74–0.82), 0.75 (0.70–0.80), and 0.70 (0.60–0.80), respectively. Moreover, the calibration plots of 3- and 5 years survival probability indicated favorable curve-fitting performance in the above three groups. In conclusion, the proposed seven genes signature-based nomogram is a promising and robust tool for predicting the OS of ccRCC, which may help tailor individualized therapeutic strategies.
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12
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Rust MB, Khudayberdiev S, Pelucchi S, Marcello E. CAPt'n of Actin Dynamics: Recent Advances in the Molecular, Developmental and Physiological Functions of Cyclase-Associated Protein (CAP). Front Cell Dev Biol 2020; 8:586631. [PMID: 33072768 PMCID: PMC7543520 DOI: 10.3389/fcell.2020.586631] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/26/2020] [Indexed: 12/11/2022] Open
Abstract
Cyclase-associated protein (CAP) has been discovered three decades ago in budding yeast as a protein that associates with the cyclic adenosine monophosphate (cAMP)-producing adenylyl cyclase and that suppresses a hyperactive RAS2 variant. Since that time, CAP has been identified in all eukaryotic species examined and it became evident that the activity in RAS-cAMP signaling is restricted to a limited number of species. Instead, its actin binding activity is conserved among eukaryotes and actin cytoskeleton regulation emerged as its primary function. However, for many years, the molecular functions as well as the developmental and physiological relevance of CAP remained unknown. In the present article, we will compile important recent progress on its molecular functions that identified CAP as a novel key regulator of actin dynamics, i.e., the spatiotemporally controlled assembly and disassembly of actin filaments (F-actin). These studies unraveled a cooperation with ADF/Cofilin and Twinfilin in F-actin disassembly, a nucleotide exchange activity on globular actin monomers (G-actin) that is required for F-actin assembly and an inhibitory function towards the F-actin assembly factor INF2. Moreover, by focusing on selected model organisms, we will review current literature on its developmental and physiological functions, and we will present studies implicating CAP in human pathologies. Together, this review article summarizes and discusses recent achievements in understanding the molecular, developmental and physiological functions of CAP, which led this protein emerge as a novel CAPt'n of actin dynamics.
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Affiliation(s)
- Marco B Rust
- Molecular Neurobiology Group, Institute of Physiological Chemistry, University of Marburg, Marburg, Germany.,DFG Research Training Group, Membrane Plasticity in Tissue Development and Remodeling, GRK 2213, University of Marburg, Marburg, Germany.,Center for Mind, Brain and Behavior, University of Marburg and Justus-Liebig-University Giessen, Giessen, Germany
| | - Sharof Khudayberdiev
- Molecular Neurobiology Group, Institute of Physiological Chemistry, University of Marburg, Marburg, Germany
| | - Silvia Pelucchi
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Elena Marcello
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
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13
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Kim SH, Park BB, Hong SE, Ryu SR, Lee JH, Kim SH, Lee P, Cho EK, Moon C. Effects of 2-methoxy-1,4-naphthoquinone (MQ) on MCP-1 Induced THP-1 Migration. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2019. [DOI: 10.15324/kjcls.2019.51.2.245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Si Hyun Kim
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Bo Bin Park
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Sung Eun Hong
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Sung Ryul Ryu
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Jang Ho Lee
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Sa Hyun Kim
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
| | - Pyeongjae Lee
- School of Industrial Bio-Pharmaceutical Science, Semyung University, Jecheon, Korea
| | - Eun-Kyung Cho
- Department of Biomedical Laboratory Science, Kyungwoon University, Gumi, Korea
| | - Cheol Moon
- Department of Clinical Laboratory Science, Semyung University, Jecheon, Korea
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Yuan X, Zhen Z, Zhang M, Yu Y, Gao X, Ao JX. Cyclase-associated protein 1 is a key negative regulator of milk synthesis and proliferation of bovine mammary epithelial cells. Cell Biochem Funct 2019; 37:185-192. [PMID: 30847953 DOI: 10.1002/cbf.3387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 08/30/2018] [Accepted: 02/20/2019] [Indexed: 12/27/2022]
Abstract
Adenylyl cyclase-associated protein (CAP) is a highly conserved protein. Previous reports have suggested that CAP1 may be a negative regulator of cellular proliferation, migration, and adhesion and the development of cell carcinomas. The molecular mechanism of CAP1 regulation of downstream pathways, as well as how CAP1 is regulated by environmental stimuli and upstream signalling, is not well understood. In this present study, we assessed the role of CAP1 in milk synthesis and proliferation of bovine mammary epithelial cells. Using gene overexpression and silencing methods, CAP1 was found to negatively regulate milk synthesis and proliferation of cells via the PI3K-mTOR/SREBP-1c/Cyclin D1 signalling pathway. Hormones, such as prolactin and oestrogen, and amino acids, such as methionine and leucine, stimulate MMP9 expression and trigger CAP1 degradation, and thus, abrogate its inhibition of synthesis of milk protein, fat, and lactose by and proliferation of bovine mammary epithelial cells. The results of our study help deepen our understanding of the regulatory mechanisms underlying milk synthesis and aid in characterizing the molecular mechanisms of CAP1. Previous reports have suggested that CAP1 is a negative regulator of cellular proliferation and anabolism, but the molecular mechanisms are largely unknown. In this present study, we identified CAP1 as a negative regulator of milk synthesis and proliferation of bovine mammary epithelial cells. Our results will deepen our understanding of the regulatory mechanisms underlying milk synthesis and aid in exploring the molecular mechanisms of CAP1.
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Affiliation(s)
- Xiaohan Yuan
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
| | - Zhen Zhen
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
| | - Minghui Zhang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
| | - Yanbo Yu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
| | - Xuejun Gao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
| | - Jin-Xia Ao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, Harbin, China
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15
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Wang H, Lou C, Ma N. Forskolin exerts anticancer roles in non-Hodgkin's lymphomas via regulating Axin/β-catenin signaling pathway. Cancer Manag Res 2019; 11:1685-1696. [PMID: 30863177 PMCID: PMC6388987 DOI: 10.2147/cmar.s180754] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Non-Hodgkin’s lymphomas (NHLs) account for 85% of lymphomas, which are characterized by high-degree malignancy, rapid progress, and even invasion into central nervous system in pediatric patients. Although the cure rate of pediatric NHL has improved, some patients have still underwent recurrence or death. This study focuses on the effects and mechanism of forskolin on the progression of NHL, aiming to find efficient therapy methods for pediatric NHL. Methods MTT, flow cytometry and mice tumor bearing experiments were used to evaluate the effects of forskolin on NHL cell proliferation, apoptosis and tumorigenesis. Western blotting and RT-PCR assays were used to detect protein and mRNA expression. Immunohistochemistry technology was recruited to analyze Ki-67 expression in tumor tissues. Results Forskolin significantly increased the expression of cleaved caspase-3/9 in both NHL Toledo and NK-92 cell lines, and inhibited cell growth. Besides, forskolin obviously reduced the expression of β-catenin protein, promoted its ubiquitination, enhanced its transportation from nuclear to cytoplasm, as well as decreased the expression of its downstream oncogenes c-myc and cyclin D1 through upregulating Axin expression and stability and inhibiting Axin ubiquitination. Moreover, forskolin enhanced the effects of SP600125, an inhibitor of c-Jun N-terminal kinase signaling on cell apoptosis promotion and tumorigenesis inhibition via Axin-induced β-catenin signaling repression. Conclusion The current study clarifies that forskolin can inhibit the progression of NHL through Axin-mediated inhibition of β-catenin signaling. Moreover, forskolin improves the effects of SP600125 on cell apoptosis enhancement and tumorigenesis inhibition of NHL cells. These findings provide theoretical foundation of serving forskolin as a new effective therapeutic drug for pediatric NHL.
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Affiliation(s)
- Hailei Wang
- Department of Pediatrics, Huaihe Hospital of Henan University, Kaifeng, Henan, China
| | - Chunyan Lou
- Department of Pediatrics, Huaihe Hospital of Henan University, Kaifeng, Henan, China
| | - Na Ma
- Department of Neurology, Henan Kaifeng Children's Hospital, Kaifeng, Henan, China,
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16
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He B, Chang Y, Yang C, Zhang Z, Xu G, Feng X, Zhuang L. Adenylate cyclase 7 regulated by miR-192 promotes ATRA-induced differentiation of acute promyelocytic leukemia cells. Biochem Biophys Res Commun 2018; 506:543-547. [PMID: 30366671 DOI: 10.1016/j.bbrc.2018.10.125] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 10/20/2018] [Indexed: 12/25/2022]
Abstract
Adenylate cyclase 7 (AC7) has been reported to participate in various biological processes during cancer progression. However, the roles of AC7 in all-trans retinoic acid (ATRA)-induced differentiation of acute promyelocytic leukemia (APL) cells are still unknown. In this study, firstly, our results showed that AC7 affected intracellular cAMP level and influenced ATRA-induced differentiation of APL cells. Secondly, we revealed that miR-192 could directly target AC7 expression and knockdown of miR-192 promoted ATRA-induced APL cell differentiation by regulating AC7 expression. Furthermore, we found that AC7 expression was lower in patients with relapsed APL than that in patients with newly diagnosed APL, while miR-192 expression was relatively higher in patients with relapsed APL. Taken together, our results show that miR-192-mediated AC7 could play important roles in differentiation of APL cells, AC7 and miR-192 might be new biomarkers and therapeutic targets for patients with relapsed APL.
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Affiliation(s)
- Bing He
- Department of General Surgery, The First People's Hospital of Tianmen City, Tianmen, 431700, China
| | - Yanyan Chang
- Department of Haematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Chao Yang
- Department of Infectious Diseases, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Zhanglin Zhang
- Department of Laboratorial Examination, The First Affiliated Hospital of Nanchang University, 330006, Nanchang, China
| | - Guiping Xu
- Transfusion Department, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, China
| | - Xianqi Feng
- Department of Haematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
| | - Likun Zhuang
- Institute of Transplantation Science, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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The membrane-associated fraction of cyclase associate protein 1 translocates to the cytosol upon platelet stimulation. Sci Rep 2018; 8:10804. [PMID: 30018317 PMCID: PMC6050311 DOI: 10.1038/s41598-018-29151-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/03/2018] [Indexed: 01/09/2023] Open
Abstract
Platelets undergo profound shape changes upon adhesion to damaged blood vessel walls that are mediated by reorganisation of the actin cytoskeleton in response to receptor-mediated signalling cascades. The highly conserved 56 kDa multidomain cyclase associated protein 1 (CAP1) works in concert with cofilin and profilin to modulate actin filament turnover by facilitating cofilin-mediated actin filament severing and depolymerisation and catalysing profilin-mediated regeneration of actin monomers for reutilisation in growing filaments. CAP1 is abundant in platelets but its roles remain unexplored. We report that in suspended platelets CAP1 localises predominantly at the cell cortex whereas in spread platelets it is uniformly distributed in the cytoplasm, with enrichment at the cell cortex and the periphery of actin nodules. Upon subcellular fractionation most CAP1 was found cytosolic but part associated to the membrane fraction in an actin-independent manner. Interestingly, upon stimulation with thrombin a significant proportion of the membrane-associated CAP1 translocates to the cytosol. This relocalisation was prevented by prior treatment with PGI2 or the nitric oxide donor GSNO, or by inhibition of GSK3. Our results place CAP1 at a crossroad of signalling pathways that control platelet activation by contributing to actin remodelling at the cell cortex and actin nodules during platelet spreading.
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Illiano M, Sapio L, Salzillo A, Capasso L, Caiafa I, Chiosi E, Spina A, Naviglio S. Forskolin improves sensitivity to doxorubicin of triple negative breast cancer cells via Protein Kinase A-mediated ERK1/2 inhibition. Biochem Pharmacol 2018; 152:104-113. [PMID: 29574069 DOI: 10.1016/j.bcp.2018.03.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 03/20/2018] [Indexed: 01/07/2023]
Abstract
Triple negative breast cancer (TNBC) is an invasive, metastatic, highly aggressive tumor. Cytotoxic chemotherapy represents the current treatment for TNBC. However, relapse and chemo-resistance are very frequent. Therefore, new therapeutic approaches that are able to increase the sensitivity to cytotoxic drugs are needed. Forskolin, a natural cAMP elevating agent, has been used for several centuries in medicine and its safeness has also been demonstrated in modern studies. Recently, forskolin is emerging as a possible novel molecule for cancer therapy. Here, we investigate the effects of forskolin on the sensitivity of MDA-MB-231 and MDA-MB-468 TNBC cells to doxorubicin through MTT assay, flow cytometry-based assays (cell-cycle progression and cell death), cell number counting and immunoblotting experiments. We demonstrate that forskolin strongly enhances doxorubicin-induced antiproliferative effects by cell death induction. Similar effects are observed with IBMX and isoproterenol cAMP elevating agents and 8-Br-cAMP analog, but not by using 8-pCPT-2'-O-Me-cAMP Epac activator. It is important to note that the forskolin-induced potentiation of sensitivity to doxorubicin is accompanied by a strong inhibition of ERK1/2 phosphorylation, is mimicked by ERK inhibitor PD98059 and is prevented by pre-treatment with Protein Kinase A (PKA) and adenylate cyclase inhibitors. Altogether, our data indicate that forskolin sensitizes TNBC cells to doxorubicin via a mechanism depending on the cAMP/PKA-mediated ERK inhibition. Our findings sustain the evidence of anticancer activity mediated by forskolin and encourage the design of future in-vivo/clinical studies in order to explore forskolin as a doxorubicin sensitizer for possible use in TNBC patients.
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Affiliation(s)
- Michela Illiano
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Luigi Sapio
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Alessia Salzillo
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Lucia Capasso
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Ilaria Caiafa
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Emilio Chiosi
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Annamaria Spina
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Silvio Naviglio
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "Luigi Vanvitelli", Medical School, Via L. De Crecchio 7, 80138 Naples, Italy.
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Muñoz-Palomeque A, Guerrero-Ramirez MA, Rubio-Chavez LA, Rosales-Gomez RC, Lopez-Cardona MG, Barajas-Avila VH, Delgadillo-Barrera A, Canton-Romero JC, Montoya-Fuentes H, Garcia-Cobian TA, Gutierrez-Rubio SA. Association of RETN and CAP1 SNPs, Expression and Serum Resistin Levels with Breast Cancer in Mexican Women. Genet Test Mol Biomarkers 2018; 22:209-217. [PMID: 29641286 DOI: 10.1089/gtmb.2017.0212] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Breast cancer is the most common cancer in women worldwide. Approximately 70% of female breast cancer patients have a body mass index (BMI) >25. In obesity, adipose tissue secretes additional resistin, which prompts a proinflammatory effect through its action on adenylate cyclase-associated protein 1 (CAP1). Several studies have associated the RETN gene single nucleotide polymorphism (SNP) rs1862513 (-420C<G) with serum resistin levels and breast cancer. The CAP1 gene SNP rs35749351 (missense, Arg294His), located in the extracellular domain, has not previously been studied in cancer. These two SNPs, the mRNA expression levels of the two alleles for each of the cognate genes, and the serum resistin levels were compared between patients and controls to determine their association with breast cancer in Mexican women in this study. MATERIALS AND METHODS This study included 308 controls and 100 female patients with breast cancer. SNPs were detected by PCR-RFLP from DNA isolated from peripheral blood. Gene expression was performed with hydrolysis probes in tumor tissue. Resistin levels were quantified from serum samples by ELISA. RESULTS The RETN rs1862513CG/GG and CAP1 rs35749351GA/AA genotypes were associated with 1.61 and 2.193-fold increased risks of breast cancer, respectively, compared with the CC and GG genotypes. Similarly, carriers of the G allele of rs1862513 and the A allele of rs35749351, had 1.51 and 2.217-fold increased risks of breast cancer compared with the C and G alleles, respectively. The rs1862513GG/rs35749351AA genotype combination increased breast cancer risk by twofold. Serum resistin levels in postmenopausal breast cancer women were higher compared with postmenopausal controls. Tissue CAP1 expression showed differences with regard to molecular subtypes and metastases. CONCLUSION The RETN and CAP1 polymorphisms and gene expression may be potential biomarkers for breast cancer risk.
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Affiliation(s)
- Alejandrina Muñoz-Palomeque
- 1 Departamento de Fisiologia, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Miguel Angel Guerrero-Ramirez
- 2 Unidad de Medicina Genomica y Genetica, Hospital Dr. Valentin Gomez Farias, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado , Zapopan (ISSSTE), Jalisco, Mexico
| | - Lidia Ariadna Rubio-Chavez
- 1 Departamento de Fisiologia, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Roberto Carlos Rosales-Gomez
- 3 Departamento de Ciencias Biomedicas, Centro Universitario de Tonala , Universidad de Guadalajara, Tonala, Jalisco, Mexico .,4 División de Medicina Molecular, Centro de Investigacion Biomedica del Occidente, IMSS Instituto Mexicano del Seguro Social , Guadalajara, Mexico
| | - Maria Guadalupe Lopez-Cardona
- 1 Departamento de Fisiologia, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara, Guadalajara, Jalisco, Mexico .,2 Unidad de Medicina Genomica y Genetica, Hospital Dr. Valentin Gomez Farias, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado , Zapopan (ISSSTE), Jalisco, Mexico
| | - Victor Hugo Barajas-Avila
- 5 Unidad Medica de Alta Especialidad, Hospital de Ginecoobstetricia, Dr. Luis Ignacio Tellez, Centro Medico Nacional de Occidente, Instituto Mexicano del Seguro Social , Guadalajara, Mexico
| | - Alfredo Delgadillo-Barrera
- 5 Unidad Medica de Alta Especialidad, Hospital de Ginecoobstetricia, Dr. Luis Ignacio Tellez, Centro Medico Nacional de Occidente, Instituto Mexicano del Seguro Social , Guadalajara, Mexico
| | - Juan Carlos Canton-Romero
- 5 Unidad Medica de Alta Especialidad, Hospital de Ginecoobstetricia, Dr. Luis Ignacio Tellez, Centro Medico Nacional de Occidente, Instituto Mexicano del Seguro Social , Guadalajara, Mexico
| | - Hector Montoya-Fuentes
- 4 División de Medicina Molecular, Centro de Investigacion Biomedica del Occidente, IMSS Instituto Mexicano del Seguro Social , Guadalajara, Mexico
| | - Teresa Arcelia Garcia-Cobian
- 1 Departamento de Fisiologia, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Susan Andrea Gutierrez-Rubio
- 1 Departamento de Fisiologia, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
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H 2S is a key antisecretory molecule against cholera toxin-induced diarrhoea in mice: Evidence for non-involvement of the AC/cAMP/PKA pathway and AMPK. Nitric Oxide 2017; 76:152-163. [PMID: 28943473 DOI: 10.1016/j.niox.2017.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 01/18/2023]
Abstract
Hydrogen sulphide (H2S) is a gasotransmitter that participates in various physiological and pathophysiological processes within the gastrointestinal tract. We studied the effects and possible mechanism of action of H2S in secretory diarrhoea caused by cholera toxin (CT). The possible mechanisms of action of H2S were investigated using an intestinal fluid secretion model in isolated intestinal loops on anaesthetized mice treated with CT. NaHS and Lawesson's reagent and l-cysteine showed antisecretory activity through reduction of intestinal fluid secretion and loss of Cl- induced by CT. Pretreatment with an inhibitor of cystathionine-γ-lyase (CSE), dl-propargylglycine (PAG), reversed the effect of l-cysteine and caused severe intestinal secretion. Co-treatment with PAG and a submaximal dose of CT increased intestinal fluid secretion, thus supporting the role of H2S in the pathophysiology of cholera. CT increased the expression of CSE and the production of H2S. Pretreatment with PAG did not reverse the effect of SQ 22536 (an AC inhibitor), bupivacaine (inhibitor of cAMP production), KT-5720 (a PKA inhibitor), and AICAR (an AMPK activator). The treatment with Forskolin does not reverse the effects of the H2S donors. Co-treatment with either NaHS or Lawesson's reagent and dorsomorphin (an AMPK inhibitor) did not reverse the effect of the H2S donors. H2S has antisecretory activity and is an essential molecule for protection against the intestinal secretion induced by CT. Thus, H2S donor drugs are promising candidates for cholera therapy. However, more studies are needed to elucidate the possible mechanism of action.
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Illiano M, Sapio L, Caiafa I, Chiosi E, Spina A, Naviglio S. Forskolin sensitizes pancreatic cancer cells to gemcitabine via Stat3 and Erk1/2 inhibition. AIMS MOLECULAR SCIENCE 2017. [DOI: 10.3934/molsci.2017.2.224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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