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Chang B, Liu Y, Hu J, Tang Z, Qiu Z, Song Z, Jia A, Zhang Y. Bupleurum chinense DC improves CUMS-induced depressive symptoms in rats through upregulation of the cAMP/PKA/CREB signalling pathway. J Ethnopharmacol 2022; 289:115034. [PMID: 35092825 DOI: 10.1016/j.jep.2022.115034] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 05/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bupleurum chinense DC. (B. chinense) is the dried root of B. chinense, belonging to the Umbelliferae family. B. chinense has been reported since ancient times for its effect of soothing the liver and relieving depression. Additionally, its important role in treating depression, depressed mood disorders and anti-inflammation has been proven in previous studies. However, its specific mechanism of action remains unknown. AIM OF THE STUDY The key targets and metabolites of the antidepressant effect of B. chinense were investigated based on the cAMP signalling pathway. The study examined the mechanism for the antidepressant effect of B. chinense by target prediction, analysis of related metabolites and potential metabolic pathways. MATERIALS AND METHODS A network pharmacology approach was used to predict the antidepressant targets and pathways of B. chinense. A depression rat model was established through the CUMS (chronic unpredictable mild stress) procedure. The depression model was assessed by body weight, sugar-water preference, water maze and enzyme-linked immunosorbent assay (ELISA) indicators (5hydroxytryptamine, etc.). The key metabolic pathways were screened by correlations between metabolites and key targets. Finally, a quantitative analysis of key targets and metabolites was experimentally validated. RESULTS B. chinense significantly ameliorated the reduction in body weight, sugar-water preference rate and cognitive performance in the water maze experiment in rats with depression induced by CUMS. ELISA, Western blotting (WB) and reverse transcription-polymerase chain reaction (RT-PCR) assays showed that B. chinense significantly improves the expression of protein kinase cyclic adenylic acid (cAMP)-activated catalytic subunit alpha (PRKACA), cAMP-response element-binding protein (CREB) and cAMP activation in the rat brain induced by CUMS. According to metabolic pathway analysis, B. chinense shows an antidepressant effect primarily by regulating the cAMP metabolic pathway. CONCLUSION B. chinense upregulated PRKACA and CREB expression and the level of the key metabolite cAMP in the cAMP/PKA/CREB pathway while reducing the inflammatory response to depression treatment. These new findings support future research on the antidepressant effects of B. chinense.
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Affiliation(s)
- Baijin Chang
- Changchun University of Chinese Medicine, 130117, Chang Chun, PR China; Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi Collaborative Innovation Center Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Yanru Liu
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi Collaborative Innovation Center Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China.
| | - Jingting Hu
- The Third Clinical Affiliated Hospital of Changchun University of Chinese Medicine, 130117, Chang chun, PR China
| | - Zhishu Tang
- Changchun University of Chinese Medicine, 130117, Chang Chun, PR China; Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi Collaborative Innovation Center Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China; China Academy of Chinese Medical Sciences, 100700, Beijing, PR China.
| | - Zhidong Qiu
- Changchun University of Chinese Medicine, 130117, Chang Chun, PR China
| | - Zhongxing Song
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi Collaborative Innovation Center Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Ailing Jia
- Changchun University of Chinese Medicine, 130117, Chang Chun, PR China
| | - Yuru Zhang
- Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Shaanxi Collaborative Innovation Center Medicinal Resources Industrialization, Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
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Kakeshita K, Koike T, Imamura T, Fujioka H, Yamazaki H, Kinugawa K. Altered arginine vasopressin-cyclic AMP-aquaporin 2 pathway in patients with chronic kidney disease. Clin Exp Nephrol 2022; 26:788-796. [PMID: 35503490 DOI: 10.1007/s10157-022-02220-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/28/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND In the collecting ducts of the kidney, arginine vasopressin (AVP), cyclic adenosine monophosphate (cAMP), and aquaporin 2 (AQP2) play a pivotal role in maintaining fluid volume and serum osmolality in humans. However, their association among those with chronic kidney disease (CKD) remains uncertain. METHODS We prospectively included the out-patients with CKD and measured osmolality-related biomarkers including plasma AVP, urine cAMP, urine AQP2, and urine osmolality levels. Association among these parameters at each CKD stage was investigated. RESULTS A total of 121 patients were included (median age 71 years old [61-78], 89 men, estimated glomerular filtration ratio 28.6 [16.4-45.3] mL/min/1.73 m2). Serum osmolality increased as CKD progression, accompanying incremental plasma AVP levels, whereas urine cAMP, urine AQP2, and urine osmolality decreased as CKD progression. At advanced CKD stage, urine cAMP remained low irrespective of the AVP stimulation, whereas urine cAMP levels varied according to the levels of plasma AVP at less advanced CKD stage. The associations between urine cAMP and urine AQP2 and between urine AQP2 and urine osmolality remained preserved irrespective of the CKD stages. CONCLUSIONS Vasopressin type-2 receptor seems to be particularly impaired in patients with advanced CKD, whereas the signal cascade of the downstream of vasopressin type-2 receptor is relatively preserved. Urine cAMP might be a promising marker to estimate the residual function of the collecting duct.
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Affiliation(s)
- Kota Kakeshita
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Tsutomu Koike
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Teruhiko Imamura
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan.
| | - Hayato Fujioka
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Hidenori Yamazaki
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
| | - Koichiro Kinugawa
- The Second Department of Internal Medicine, University of Toyama, 2630 Sugitani, Toyama, Toyama, 930-0194, Japan
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153
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Wang S, Rhijn JRV, Akkouh I, Kogo N, Maas N, Bleeck A, Ortiz IS, Lewerissa E, Wu KM, Schoenmaker C, Djurovic S, van Bokhoven H, Kleefstra T, Nadif Kasri N, Schubert D. Loss-of-function variants in the schizophrenia risk gene SETD1A alter neuronal network activity in human neurons through the cAMP/PKA pathway. Cell Rep 2022; 39:110790. [PMID: 35508131 PMCID: PMC7615788 DOI: 10.1016/j.celrep.2022.110790] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 09/27/2021] [Revised: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 12/11/2022] Open
Abstract
Heterozygous loss-of-function (LoF) mutations in SETD1A, which encodes a subunit of histone H3 lysine 4 methyltransferase, cause a neurodevelopmental syndrome and increase the risk for schizophrenia. Using CRISPR-Cas9, we generate excitatory/inhibitory neuronal networks from human induced pluripotent stem cells with a SETD1A heterozygous LoF mutation (SETD1A+/-). Our data show that SETD1A haploinsufficiency results in morphologically increased dendritic complexity and functionally increased bursting activity. This network phenotype is primarily driven by SETD1A haploinsufficiency in glutamatergic neurons. In accordance with the functional changes, transcriptomic profiling reveals perturbations in gene sets associated with glutamatergic synaptic function. At the molecular level, we identify specific changes in the cyclic AMP (cAMP)/Protein Kinase A pathway pointing toward a hyperactive cAMP pathway in SETD1A+/- neurons. Finally, by pharmacologically targeting the cAMP pathway, we are able to rescue the network deficits in SETD1A+/- cultures. Our results demonstrate a link between SETD1A and the cAMP-dependent pathway in human neurons.
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Affiliation(s)
- Shan Wang
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands
| | - Jon-Ruben van Rhijn
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands
| | - Ibrahim Akkouh
- Department of Medical Genetics, Oslo University Hospital, 0424 Oslo, Norway; NORMENT, Institute of Clinical Medicine, University of Oslo, 0372 Oslo, Norway
| | - Naoki Kogo
- Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands; Department of Biophysics, Donders Institute for Brain Cognition and Behaviour, 6525 AJ Nijmegen, the Netherlands
| | - Nadine Maas
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands
| | - Anna Bleeck
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands
| | - Irene Santisteban Ortiz
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands
| | - Elly Lewerissa
- Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Ka Man Wu
- Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Chantal Schoenmaker
- Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Srdjan Djurovic
- Department of Medical Genetics, Oslo University Hospital, 0424 Oslo, Norway; NORMENT, Department of Clinical Science, University of Bergen, 5021 Bergen, Norway
| | - Hans van Bokhoven
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands; Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Tjitske Kleefstra
- Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Nael Nadif Kasri
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands; Department of Human Genetics, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6500 HB Nijmegen, the Netherlands
| | - Dirk Schubert
- Department of Cognitive Neurosciences, Radboudumc, Donders Institute for Brain Cognition and Behaviour, 6525 HR Nijmegen, the Netherlands.
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154
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Yang W, Robichaux WG, Mei FC, Lin W, Li L, Pan S, White MA, Chen Y, Cheng X. Epac1 activation by cAMP regulates cellular SUMOylation and promotes the formation of biomolecular condensates. Sci Adv 2022; 8:eabm2960. [PMID: 35442725 PMCID: PMC9020664 DOI: 10.1126/sciadv.abm2960] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Protein SUMOylation plays an essential role in maintaining cellular homeostasis when cells are under stress. However, precisely how SUMOylation is regulated, and a molecular mechanism linking cellular stress to SUMOylation, remains elusive. Here, we report that cAMP, a major stress-response second messenger, acts through Epac1 as a regulator of cellular SUMOylation. The Epac1-associated proteome is highly enriched with components of the SUMOylation pathway. Activation of Epac1 by intracellular cAMP triggers phase separation and the formation of nuclear condensates containing Epac1 and general components of the SUMOylation machinery to promote cellular SUMOylation. Furthermore, genetic knockout of Epac1 obliterates oxidized low-density lipoprotein-induced cellular SUMOylation in macrophages, leading to suppression of foam cell formation. These results provide a direct nexus connecting two major cellular stress responses to define a molecular mechanism in which cAMP regulates the dynamics of cellular condensates to modulate protein SUMOylation.
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Affiliation(s)
- Wenli Yang
- Department of Integrative Biology and Pharmacology, The University of Texas Health Science Center, Houston, TX, USA
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - William G. Robichaux
- Department of Integrative Biology and Pharmacology, The University of Texas Health Science Center, Houston, TX, USA
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Fang C. Mei
- Department of Integrative Biology and Pharmacology, The University of Texas Health Science Center, Houston, TX, USA
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Wei Lin
- Department of Integrative Biology and Pharmacology, The University of Texas Health Science Center, Houston, TX, USA
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Li Li
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Sheng Pan
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
| | - Mark A. White
- Sealy Center for Structural Biology and Molecular Biophysics, The University of Texas Medical Branch, Galveston, TX, USA
- Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Yuan Chen
- Department of Surgery and Moores Cancer Center, UC San Diego Health, La Jolla, CA, USA
| | - Xiaodong Cheng
- Department of Integrative Biology and Pharmacology, The University of Texas Health Science Center, Houston, TX, USA
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center, Houston, TX, USA
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155
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Shimizu M, Mi X, Toyoda F, Kojima A, Ding WG, Fukushima Y, Omatsu-Kanbe M, Kitagawa H, Matsuura H. Propofol, an Anesthetic Agent, Inhibits HCN Channels through the Allosteric Modulation of the cAMP-Dependent Gating Mechanism. Biomolecules 2022; 12:biom12040570. [PMID: 35454159 PMCID: PMC9032835 DOI: 10.3390/biom12040570] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 11/16/2022] Open
Abstract
Propofol is a broadly used intravenous anesthetic agent that can cause cardiovascular effects, including bradycardia and asystole. A possible mechanism for these effects is slowing cardiac pacemaker activity due to inhibition of the hyperpolarization-activated, cyclic nucleotide-gated (HCN) channels. However, it remains unclear how propofol affects the allosteric nature of the voltage- and cAMP-dependent gating mechanism in HCN channels. To address this aim, we investigated the effect of propofol on HCN channels (HCN4 and HCN2) in heterologous expression systems using a whole-cell patch clamp technique. The extracellular application of propofol substantially suppressed the maximum current at clinical concentrations. This was accompanied by a hyperpolarizing shift in the voltage dependence of channel opening. These effects were significantly attenuated by intracellular loading of cAMP, even after considering the current modification by cAMP in opposite directions. The differential degree of propofol effects in the presence and absence of cAMP was rationalized by an allosteric gating model for HCN channels, where we assumed that propofol affects allosteric couplings between the pore, voltage-sensor, and cyclic nucleotide-binding domain (CNBD). The model predicted that propofol enhanced autoinhibition of pore opening by unliganded CNBD, which was relieved by the activation of CNBD by cAMP. Taken together, these findings reveal that propofol acts as an allosteric modulator of cAMP-dependent gating in HCN channels, which may help us to better understand the clinical action of this anesthetic drug.
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Affiliation(s)
- Morihiro Shimizu
- Department of Anesthesiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (M.S.); (A.K.); (Y.F.); (H.K.)
| | - Xinya Mi
- Department of Physiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (X.M.); (F.T.); (M.O.-K.); (H.M.)
| | - Futoshi Toyoda
- Department of Physiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (X.M.); (F.T.); (M.O.-K.); (H.M.)
| | - Akiko Kojima
- Department of Anesthesiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (M.S.); (A.K.); (Y.F.); (H.K.)
| | - Wei-Guang Ding
- Department of Physiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (X.M.); (F.T.); (M.O.-K.); (H.M.)
- Correspondence: ; Tel.: +81-77-548-2152; Fax: +81-77-548-2348
| | - Yutaka Fukushima
- Department of Anesthesiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (M.S.); (A.K.); (Y.F.); (H.K.)
| | - Mariko Omatsu-Kanbe
- Department of Physiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (X.M.); (F.T.); (M.O.-K.); (H.M.)
| | - Hirotoshi Kitagawa
- Department of Anesthesiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (M.S.); (A.K.); (Y.F.); (H.K.)
| | - Hiroshi Matsuura
- Department of Physiology, Shiga University of Medical Science, Otsu 520-2192, Japan; (X.M.); (F.T.); (M.O.-K.); (H.M.)
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Liu X, Zhu H, Gao H, Tian X, Tan B, Su R. G s signaling pathway distinguishes hallucinogenic and nonhallucinogenic 5-HT 2AR agonists induced head twitch response in mice. Biochem Biophys Res Commun 2022; 598:20-25. [PMID: 35149433 DOI: 10.1016/j.bbrc.2022.01.113] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 12/19/2021] [Accepted: 01/28/2022] [Indexed: 11/21/2022]
Abstract
5- HT2A receptor is a member of the family A G-protein-coupled receptor. It is involved in many psychiatric disorders, such as depression, addiction and Parkinson's disease. 5-HT2AR targeted drugs play an important role in regulating cognition, memory, emotion and other physiological function by coupling G proteins, and their most notable function is stimulating the serotonergic hallucination. However, not all 5-HT2AR agonists exhibit hallucinogenic activity, such as lisuride. Molecular mechanisms of these different effects are not well illustrated. This study suggested that 5-HT2AR coupled both Gs and Gq protein under hallucinogenic agonists DOM and 25CN-NBOH stimulation, but nonhallucinogenic agonist lisuride and TBG only activates Gq signaling. Moreover, in head twitch response (HTR) model, we found that cAMP analogs 8-Bromo-cAMP and PDE4 inhibitor Rolipram could increase HTR, while Gs protein inhibitor Melittin could reduce HTR. Collectively, these results revealed that Gs signaling is a key signaling pathway that may distinguish hallucinogenic agonists and nonhallucinogenic agonists.
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Affiliation(s)
- Xiaoqian Liu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27th Taiping Road, Beijing, 100850, China
| | - Huili Zhu
- School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Huan Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27th Taiping Road, Beijing, 100850, China; School of Pharmacy, Yantai University, Yantai, 264005, China
| | - Xiangyun Tian
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27th Taiping Road, Beijing, 100850, China
| | - Bo Tan
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27th Taiping Road, Beijing, 100850, China
| | - Ruibin Su
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27th Taiping Road, Beijing, 100850, China.
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157
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Mi Z, Song Y, Wang J, Liu Z, Cao X, Dang L, Lu Y, Sun Y, Xiong H, Zhang L, Chen Y. cAMP-Induced Nuclear Condensation of CRTC2 Promotes Transcription Elongation and Cystogenesis in Autosomal Dominant Polycystic Kidney Disease. Adv Sci (Weinh) 2022; 9:e2104578. [PMID: 35037420 PMCID: PMC8981427 DOI: 10.1002/advs.202104578] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Formation of biomolecular condensates by phase separation has recently emerged as a new principle for regulating gene expression in response to extracellular signaling. However, the molecular mechanisms underlying the coupling of signal transduction and gene activation through condensate formation, and how dysregulation of these mechanisms contributes to disease progression, remain elusive. Here, the authors report that CREB-regulated transcription coactivator 2 (CRTC2) translocates to the nucleus and forms phase-separated condensates upon activation of cAMP signaling. They show that intranuclear CRTC2 interacts with positive transcription elongation factor b (P-TEFb) and activates P-TEFb by disrupting the inhibitory 7SK snRNP complex. Aberrantly elevated cAMP signaling plays central roles in the development of autosomal dominant polycystic kidney disease (ADPKD). They find that CRTC2 localizes to the nucleus and forms condensates in cystic epithelial cells of both mouse and human ADPKD kidneys. Genetic depletion of CRTC2 suppresses cyst growth in an orthologous ADPKD mouse model. Using integrative transcriptomic and cistromic analyses, they identify CRTC2-regulated cystogenesis-associated genes, whose activation depends on CRTC2 condensate-facilitated P-TEFb recruitment and the release of paused RNA polymerase II. Together, their findings elucidate a mechanism by which CRTC2 nuclear condensation conveys cAMP signaling to transcription elongation activation and thereby promotes cystogenesis in ADPKD.
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Affiliation(s)
- Zeyun Mi
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Yandong Song
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Jiuchen Wang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Zhiheng Liu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Xinyi Cao
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Lin Dang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Yumei Lu
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Yongzhan Sun
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Hui Xiong
- Department of UrologyShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandong250001China
| | - Lirong Zhang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
| | - Yupeng Chen
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education)The Province and Ministry Co‐sponsored Collaborative Innovation Center for Medical EpigeneticsDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesTianjin Institute of UrologyThe Second Hospital of Tianjin Medical UniversityTianjin Medical UniversityTianjin300070China
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Fonseca JP, Aslankoohi E, Ng AH, Chevalier M. Analysis of localized cAMP perturbations within a tissue reveal the effects of a local, dynamic gap junction state on ERK signaling. PLoS Comput Biol 2022; 18:e1009873. [PMID: 35353814 PMCID: PMC9000136 DOI: 10.1371/journal.pcbi.1009873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 04/11/2022] [Accepted: 01/27/2022] [Indexed: 11/19/2022] Open
Abstract
Beyond natural stimuli such as growth factors and stresses, the ability to experimentally modulate at will the levels or activity of specific intracellular signaling molecule(s) in specified cells within a tissue can be a powerful tool for uncovering new regulation and tissue behaviors. Here we perturb the levels of cAMP within specific cells of an epithelial monolayer to probe the time-dynamic behavior of cell-cell communication protocols implemented by the cAMP/PKA pathway and its coupling to the ERK pathway. The time-dependent ERK responses we observe in the perturbed cells for spatially uniform cAMP perturbations (all cells) can be very different from those due to spatially localized perturbations (a few cells). Through a combination of pharmacological and genetic perturbations, signal analysis, and computational modeling, we infer how intracellular regulation and regulated cell-cell coupling each impact the intracellular ERK response in single cells. Our approach reveals how a dynamic gap junction state helps sculpt the intracellular ERK response over time in locally perturbed cells.
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Affiliation(s)
| | - Elham Aslankoohi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America
| | - Andrew H. Ng
- Outpace Bio, Seattle, Washington, United States of America
| | - Michael Chevalier
- Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California, United States of America
- * E-mail:
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Chodasiewicz M, Kerber O, Gorka M, Moreno JC, Maruri-Lopez I, Minen RI, Sampathkumar A, Nelson ADL, Skirycz A. 2',3'-cAMP treatment mimics the stress molecular response in Arabidopsis thaliana. Plant Physiol 2022; 188:1966-1978. [PMID: 35043968 PMCID: PMC8968299 DOI: 10.1093/plphys/kiac013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/01/2021] [Indexed: 05/12/2023]
Abstract
The role of the RNA degradation product 2',3'-cyclic adenosine monophosphate (2',3'-cAMP) is poorly understood. Recent studies have identified 2',3'-cAMP in plant material and determined its role in stress signaling. The level of 2',3'-cAMP increases upon wounding, in the dark, and under heat, and 2',3'-cAMP binding to an RNA-binding protein, Rbp47b, promotes stress granule (SG) assembly. To gain further mechanistic insights into the function of 2',3'-cAMP, we used a multi-omics approach by combining transcriptomics, metabolomics, and proteomics to dissect the response of Arabidopsis (Arabidopsis thaliana) to 2',3'-cAMP treatment. We demonstrated that 2',3'-cAMP is metabolized into adenosine, suggesting that the well-known cyclic nucleotide-adenosine pathway of human cells might also exist in plants. Transcriptomics analysis revealed only minor overlap between 2',3'-cAMP- and adenosine-treated plants, suggesting that these molecules act through independent mechanisms. Treatment with 2',3'-cAMP changed the levels of hundreds of transcripts, proteins, and metabolites, many previously associated with plant stress responses, including protein and RNA degradation products, glucosinolates, chaperones, and SG components. Finally, we demonstrated that 2',3'-cAMP treatment influences the movement of processing bodies, confirming the role of 2',3'-cAMP in the formation and motility of membraneless organelles.
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Affiliation(s)
| | - Olga Kerber
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany
| | - Michal Gorka
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany
| | - Juan C Moreno
- Center for Desert Agriculture, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany
| | - Israel Maruri-Lopez
- Center for Desert Agriculture, Biological and Environmental Science and Engineering Division (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Romina I Minen
- Boyce Thompson Institute, Cornell University, Ithaca, New York 14853, USA
| | - Arun Sampathkumar
- Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany
| | - Andrew D L Nelson
- Boyce Thompson Institute, Cornell University, Ithaca, New York 14853, USA
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160
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Theng EH, Weinstein LS, Collins MT. Calvarial hyperostosis in primary hyperparathyroidism and other settings of increased cAMP signalling. Lancet 2022; 399:956. [PMID: 35248187 DOI: 10.1016/s0140-6736(22)00149-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/14/2021] [Accepted: 01/08/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Elizabeth H Theng
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Lee S Weinstein
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Michael T Collins
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA.
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161
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Shiraki H, Tanaka S, Guo Y, Harada K, Hide I, Yasuda T, Sakai N. Potential role of inducible GPR3 expression under stimulated T cell conditions. J Pharmacol Sci 2022; 148:307-314. [PMID: 35177210 DOI: 10.1016/j.jphs.2022.01.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/01/2022] [Accepted: 01/11/2022] [Indexed: 02/06/2023] Open
Abstract
G protein-coupled receptor 3 (GPR3) constitutively activates Gαs proteins without any ligands and is predominantly expressed in neurons. Since the expression and physiological role of GPR3 in immune cells is still unknown, we examined the possible role of GPR3 in T lymphocytes. The expression of GPR3 was upregulated 2 h after phorbol 12-myristate 13-acetate (PMA)/ionomycin stimulation and was sustained in Jurkat cells, a human T lymphocyte cell line. In addition, the expression of nuclear receptor 4 group A member 2 (NR4A2) was highly modulated by GPR3 expression. Additionally, GPR3 expression was linked with the transcriptional promoter activity of NR4A in Jurkat cells. In mouse CD4+ T cells, transient GPR3 expression was induced immediately after the antigen receptor stimulation. However, the expression of NR4A2 was not modulated in CD4+ T cells from GPR3-knockout mice after stimulation, and the population of Treg cells in thymocytes and splenocytes was not affected by GPR3 knockout. By contrast, spontaneous effector activation in both CD4+ T cells and CD8+ T cells was observed in GPR3-knockout mice. In summary, GPR3 is immediately induced by T cell stimulation and play an important role in the suppression of effector T cell activation.
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Affiliation(s)
- Hiroko Shiraki
- Department of Molecular and Pharmacological Neuroscience, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Shigeru Tanaka
- Department of Molecular and Pharmacological Neuroscience, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan.
| | - Yun Guo
- Department of Immunology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Kana Harada
- Department of Molecular and Pharmacological Neuroscience, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Izumi Hide
- Department of Molecular and Pharmacological Neuroscience, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Tomoharu Yasuda
- Department of Immunology, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Norio Sakai
- Department of Molecular and Pharmacological Neuroscience, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
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162
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Hirota K, Hirashima T, Horikawa K, Yasoda A, Matsuda M. C-type Natriuretic Peptide-induced PKA Activation Promotes Endochondral Bone Formation in Hypertrophic Chondrocytes. Endocrinology 2022; 163:6511000. [PMID: 35041746 PMCID: PMC8826897 DOI: 10.1210/endocr/bqac005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Indexed: 11/28/2022]
Abstract
Longitudinal bone growth is achieved by a tightly controlled process termed endochondral bone formation. C-type natriuretic peptide (CNP) stimulates endochondral bone formation through binding to its specific receptor, guanylyl cyclase (GC)-B. However, CNP/GC-B signaling dynamics in different stages of endochondral bone formation have not been fully clarified, especially in terms of the interaction between the cyclic guanine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) pathways. Here, we demonstrated that CNP activates the cAMP/protein kinase A (PKA) pathway and that this activation contributed to the elongation of the hypertrophic zone in the growth plate. Cells of the chondrogenic line ATDC5 were transfected with Förster resonance energy transfer (FRET)-based cGMP and PKA biosensors. Dual-FRET imaging revealed that CNP increased intracellular cGMP levels and PKA activities in chondrocytes. Further, CNP-induced PKA activation was enhanced following differentiation of ATDC5 cells. Live imaging of the fetal growth plate of transgenic mice, expressing a FRET biosensor for PKA, PKAchu mice, showed that CNP predominantly activates the PKA in the hypertrophic chondrocytes. Additionally, histological analysis of the growth plate of PKAchu mice demonstrated that CNP increased the length of the growth plate, but coadministration of a PKA inhibitor, H89, inhibited the growth-promoting effect of CNP only in the hypertrophic zone. In summary, we revealed that CNP-induced cGMP elevation activated the cAMP/PKA pathway, and clarified that this PKA activation contributed to the bone growth-promoting effect of CNP in hypertrophic chondrocytes. These results provide insights regarding the cross-talk between cGMP and cAMP signaling in endochondral bone formation and in the physiological role of the CNP/GC-B system.
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Affiliation(s)
- Keisho Hirota
- Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Correspondence: Keisho Hirota, Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-Cho, Sakyo-ku, Kyoto 606-8501, Japan.
| | - Tsuyoshi Hirashima
- Laboratory of Bioimaging and Cell Signaling, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
- The Hakubi Center, Kyoto University, Kyoto, Japan
- Science and Technology Agency, PRESTO, Kawaguchi, Japan
| | - Kazuki Horikawa
- Department of Optical Imaging, Advanced Research Promotion Center, Tokushima University Graduate School, Tokushima, Japan
| | - Akihiro Yasoda
- Clinical Research Center, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Michiyuki Matsuda
- Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Laboratory of Bioimaging and Cell Signaling, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
- Institute for Integrated Cell-Material Sciences, Kyoto University, Kyoto, Japan
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163
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Wendel BM, Pi H, Krüger L, Herzberg C, Stülke J, Helmann JD. A Central Role for Magnesium Homeostasis during Adaptation to Osmotic Stress. mBio 2022; 13:e0009222. [PMID: 35164567 PMCID: PMC8844918 DOI: 10.1128/mbio.00092-22] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023] Open
Abstract
Osmotic stress is a significant physical challenge for free-living cells. Cells from all three domains of life maintain viability during osmotic stress by tightly regulating the major cellular osmolyte potassium (K+) and by import or synthesis of compatible solutes. It has been widely established that in response to high salt stress, many bacteria transiently accumulate high levels of K+, leading to bacteriostasis, with growth resuming only when compatible solutes accumulate and K+ levels are restored to biocompatible levels. Using Bacillus subtilis as a model system, we provide evidence that K+ fluxes perturb Mg2+ homeostasis: import of K+ upon osmotic upshift is correlated with Mg2+ efflux, and Mg2+ reimport is critical for adaptation. The transient growth inhibition resulting from hyperosmotic stress is coincident with loss of Mg2+ and a decrease in protein translation. Conversely, the reimport of Mg2+ is a limiting factor during resumption of growth. Furthermore, we show the essential signaling dinucleotide cyclic di-AMP fluctuates dynamically in coordination with Mg2+ and K+ levels, consistent with the proposal that cyclic di-AMP orchestrates the cellular response to osmotic stress. IMPORTANCE Environments with high concentrations of salt or other solutes impose an osmotic stress on cells, ultimately limiting viability by dehydration of the cytosol. A very common cellular response to high osmolarity is to immediately import high levels of potassium ion (K+), which helps prevent dehydration and allows time for the import or synthesis of biocompatible solutes that allow a resumption of growth. Here, using Bacillus subtilis as a model, we demonstrate that concomitant with K+ import there is a large reduction in intracellular magnesium (Mg2+) mediated by specific efflux pumps. Further, it is the reimport of Mg2+ that is rate-limiting for the resumption of growth. These coordinated fluxes of K+ and Mg2+ are orchestrated by cyclic-di-AMP, an essential second messenger in Firmicutes. These findings amend the conventional model for osmoadaptation and reveal that Mg2+ limitation is the proximal cause of the bacteriostasis that precedes resumption of growth.
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Affiliation(s)
- Brian M. Wendel
- Department of Microbiology, Cornell University, Ithaca, New York, USA
| | - Hualiang Pi
- Department of Microbiology, Cornell University, Ithaca, New York, USA
| | - Larissa Krüger
- Department of General Microbiology, GZMB, Georg August University, Göttingen, Germany
| | - Christina Herzberg
- Department of General Microbiology, GZMB, Georg August University, Göttingen, Germany
| | - Jörg Stülke
- Department of General Microbiology, GZMB, Georg August University, Göttingen, Germany
| | - John D. Helmann
- Department of Microbiology, Cornell University, Ithaca, New York, USA
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164
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Sando R, Ho ML, Liu X, Südhof TC. Engineered synaptic tools reveal localized cAMP signaling in synapse assembly. J Cell Biol 2022; 221:e202109111. [PMID: 34913963 PMCID: PMC8685283 DOI: 10.1083/jcb.202109111] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/15/2021] [Accepted: 11/30/2021] [Indexed: 12/18/2022] Open
Abstract
The physiological mechanisms driving synapse formation are elusive. Although numerous signals are known to regulate synapses, it remains unclear which signaling mechanisms organize initial synapse assembly. Here, we describe new tools, referred to as "SynTAMs" for synaptic targeting molecules, that enable localized perturbations of cAMP signaling in developing postsynaptic specializations. We show that locally restricted suppression of postsynaptic cAMP levels or of cAMP-dependent protein-kinase activity severely impairs excitatory synapse formation without affecting neuronal maturation, dendritic arborization, or inhibitory synapse formation. In vivo, suppression of postsynaptic cAMP signaling in CA1 neurons prevented formation of both Schaffer-collateral and entorhinal-CA1/temporoammonic-path synapses, suggesting a general principle. Retrograde trans-synaptic rabies virus tracing revealed that postsynaptic cAMP signaling is required for continuous replacement of synapses throughout life. Given that postsynaptic latrophilin adhesion-GPCRs drive synapse formation and produce cAMP, we suggest that spatially restricted postsynaptic cAMP signals organize assembly of postsynaptic specializations during synapse formation.
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Affiliation(s)
- Richard Sando
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA
- Department of Pharmacology, Vanderbilt University, Nashville, TN
| | - Milan Lyndie Ho
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA
| | - Xinran Liu
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT
| | - Thomas C. Südhof
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA
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165
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Zhang Y, Li Y, Wang Q, Zheng D, Feng X, Zhao W, Cai L, Zhang Q, Xu H, Fu H. Attenuation of hepatic ischemia‑reperfusion injury by adipose stem cell‑derived exosome treatment via ERK1/2 and GSK‑3β signaling pathways. Int J Mol Med 2022; 49:13. [PMID: 34878156 PMCID: PMC8711591 DOI: 10.3892/ijmm.2021.5068] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 10/14/2021] [Indexed: 11/23/2022] Open
Abstract
Exosomes are an emerging therapeutic tool for the treatment of tissue injuries. In the present study, the protective effect of isolated exosomes from adipose‑derived stem cells (ADSCs‑exo) against hepatic ischemia‑reperfusion (I/R) injury was explored. Hepatic I/R injury was achieved by inducing ischemia for 60 min followed by reperfusion for 2 and 6 h. Pre‑treatment with ADSCs‑exo revealed a significant reduction in necrosis and apoptosis in liver tissue induced by I/R injury. Hypoxic oxidative stress was managed by exosome‑mediated reduced reactive oxygen species and increased superoxide dismutase that in turn protected mitochondrial damage and apoptosis. Reduction in inflammatory mediators such as IL‑1β and TNF‑α was also observed and protection of hepatocytes from I/R injury was evidenced by a significant decrease in biochemical markers of liver damage (alanine transaminase, aspartate transaminase and lactate dehydrogenase). Exosomal prostaglandin E2 (PGE2)‑mediated ERK1/2 and GSK‑3β phosphorylation were revealed to increase Bcl‑2 and decrease Bax expression with mitochondrial permeability transition pore‑inhibition which may be considered a prime mechanism of exosome‑mediated hepatoprotection. In conclusion, our results indicated that ADSCs‑exo pre‑treatment is effective in protecting liver I/R injury.
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Affiliation(s)
- Yaqing Zhang
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Yonghua Li
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Qilong Wang
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Dongyu Zheng
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Xue Feng
- Department of Liver Surgery and Liver Transplantation Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China
| | - Wei Zhao
- Department of Obstetrics and Gynecology, Inner Mongolia Autonomous Region Corps Hospital of Chinese People's Armed Police Force, Hohhot, Inner Mongolia Autonomous Region 010040, P.R. China
| | - Linlin Cai
- Department of Anesthesiology, Wuxi People's Hospital, Wuxi, Jiangsu 214023, P.R. China
| | - Qingqing Zhang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, P.R. China
| | - Haitao Xu
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
| | - Hailong Fu
- Department of Anesthesiology, Changzheng Hospital, Naval Medical University, Shanghai 200003, P.R. China
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166
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Wilburn KM, Montague CR, Qin B, Woods AK, Love MS, McNamara CW, Schultz PG, Southard TL, Huang L, Petrassi HM, VanderVen BC. Pharmacological and genetic activation of cAMP synthesis disrupts cholesterol utilization in Mycobacterium tuberculosis. PLoS Pathog 2022; 18:e1009862. [PMID: 35134095 PMCID: PMC8856561 DOI: 10.1371/journal.ppat.1009862] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 02/18/2022] [Accepted: 01/18/2022] [Indexed: 01/27/2023] Open
Abstract
There is a growing appreciation for the idea that bacterial utilization of host-derived lipids, including cholesterol, supports Mycobacterium tuberculosis (Mtb) pathogenesis. This has generated interest in identifying novel antibiotics that can disrupt cholesterol utilization by Mtb in vivo. Here we identify a novel small molecule agonist (V-59) of the Mtb adenylyl cyclase Rv1625c, which stimulates 3', 5'-cyclic adenosine monophosphate (cAMP) synthesis and inhibits cholesterol utilization by Mtb. Similarly, using a complementary genetic approach that induces bacterial cAMP synthesis independent of Rv1625c, we demonstrate that inducing cAMP synthesis is sufficient to inhibit cholesterol utilization in Mtb. Although the physiological roles of individual adenylyl cyclase enzymes in Mtb are largely unknown, here we demonstrate that the transmembrane region of Rv1625c is required during cholesterol metabolism. Finally, the pharmacokinetic properties of Rv1625c agonists have been optimized, producing an orally-available Rv1625c agonist that impairs Mtb pathogenesis in infected mice. Collectively, this work demonstrates a role for Rv1625c and cAMP signaling in controlling cholesterol metabolism in Mtb and establishes that cAMP signaling can be pharmacologically manipulated for the development of new antibiotic strategies.
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Affiliation(s)
- Kaley M. Wilburn
- Microbiology & Immunology, Cornell University, Ithaca, New York, United States of America
| | - Christine R. Montague
- Microbiology & Immunology, Cornell University, Ithaca, New York, United States of America
| | - Bo Qin
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Ashley K. Woods
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Melissa S. Love
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Case W. McNamara
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Peter G. Schultz
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Teresa L. Southard
- Biomedical Sciences, Cornell University, Ithaca, New York, United States of America
| | - Lu Huang
- Microbiology & Immunology, Cornell University, Ithaca, New York, United States of America
| | - H. Michael Petrassi
- Calibr, a division of The Scripps Research Institute, San Diego, California, United States of America
| | - Brian C. VanderVen
- Microbiology & Immunology, Cornell University, Ithaca, New York, United States of America
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167
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Yoon SS, Kwon HW, Shin JH, Rhee MH, Park CE, Lee DH. Anti-Thrombotic Effects of Artesunate through Regulation of cAMP and PI3K/MAPK Pathway on Human Platelets. Int J Mol Sci 2022; 23:ijms23031586. [PMID: 35163507 PMCID: PMC8836205 DOI: 10.3390/ijms23031586] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/29/2022] Open
Abstract
Normal activation of platelets and their aggregation are crucial for proper hemostasis. It appears that excessive or abnormal aggregation of platelets may bring about cardiovascular diseases such as stroke, atherosclerosis, and thrombosis. For this reason, finding a substance that can regulate platelet aggregation or suppress aggregation will aid in the prevention and treatment of cardiovascular diseases. Artesunate is a compound extracted from the plant roots of Artemisia or Scopolia, and its effects have shown to be promising in areas of anticancer and Alzheimer’s disease. However, the role and mechanisms by which artesunate affects the aggregation of platelets and the formation of a thrombus are currently not understood. This study examines the ways artesunate affects the aggregation of platelets and the formation of a thrombus on platelets induced by U46619. As a result, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) production were increased significantly by artesunate relative to the doses, as well as phosphorylated vasodilator-stimulated phosphoprotein (VASP) and inositol 1,4,5-trisphosphate receptor (IP3R), substrates to cAMP-dependent kinase and cGMP-dependent kinase, in a significant manner. The Ca2+, normally mobilized from the dense tubular system, was inhibited due to IP3R phosphorylation from artesunate, and phosphorylated VASP aided in inhibiting platelet activity via αIIb/β3 platelet membrane inactivation and inhibiting fibrinogen binding. In addition, MAPK and PI3K/Akt phosphorylation was inhibited via artesunate in a significant manner, causing the production of TXA2 and intracellular granular secretion (serotonin and ATP release) to be reduced. Therefore, we suggest that artesunate has value as a substance that inhibits platelet aggregation and thrombus formation through an antiplatelet mechanism.
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Affiliation(s)
- Shin-Sook Yoon
- Department of Biomedical Laboratory Science, Namseoul University, Cheonan 31020, Korea; (S.-S.Y.); (C.-E.P.)
| | - Hyuk-Woo Kwon
- Department of Biomedical Laboratory Science, Far East University, Eumseong 27601, Korea;
| | - Jung-Hae Shin
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea; (J.-H.S.); (M.H.R.)
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea; (J.-H.S.); (M.H.R.)
| | - Chang-Eun Park
- Department of Biomedical Laboratory Science, Namseoul University, Cheonan 31020, Korea; (S.-S.Y.); (C.-E.P.)
- Molecular Diagnostics Research Institute, Namseoul University, Cheonan 31020, Korea
| | - Dong-Ha Lee
- Department of Biomedical Laboratory Science, Namseoul University, Cheonan 31020, Korea; (S.-S.Y.); (C.-E.P.)
- Molecular Diagnostics Research Institute, Namseoul University, Cheonan 31020, Korea
- Correspondence:
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168
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Abstract
The pleiotropic function of 3′,5′-cyclic adenosine monophosphate (cAMP)-dependent pathways in health and disease led to the development of pharmacological phosphodiesterase inhibitors (PDE-I) to attenuate cAMP degradation. While there are many isotypes of PDE, a predominant role of PDE4 is to regulate fundamental functions, including endothelial and epithelial barrier stability, modulation of inflammatory responses and cognitive and/or mood functions. This makes the use of PDE4-I an interesting tool for various therapeutic approaches. However, due to the presence of PDE4 in many tissues, there is a significant danger for serious side effects. Based on this, the aim of this review is to provide a comprehensive overview of the approaches and effects of PDE4-I for different therapeutic applications. In summary, despite many obstacles to use of PDE4-I for different therapeutic approaches, the current data warrant future research to utilize the therapeutic potential of phosphodiesterase 4 inhibition.
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Affiliation(s)
- Martin Alexander Schick
- Department of Anesthesiology and Critical Care, Medical Center—University of Freiburg, 79106 Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- Correspondence:
| | - Nicolas Schlegel
- Department of General, Visceral, Transplant, Vascular and Pediatric Surgery, University Hospital Wuerzburg, 97080 Würzburg, Germany;
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169
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Rajabi S, Noori S, Ashrafi MR, Movahed MA, Farzaneh S, Zarghi A. Naringenin enhances anti-proliferation effect of 1-ferrocenyl-3-(4-methylsulfonylphenyl) propen-1-one on two different cells via targeting calmodulin signaling pathway. Mol Biol Rep 2022; 49:1027-1036. [PMID: 35028851 DOI: 10.1007/s11033-021-06923-8] [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: 07/24/2021] [Accepted: 10/30/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND FMSP is a synthesized ferrocene derivative with anti-cancer characteristics on tumor cells. Naringenin is a polyphenolic flavonoid with anti-tumor ability. METHODS Cell viability and proliferation of two cancer cells and a normal cell line after treatment with these agents were determined with MTT assay. To predict the possible interaction between calmodulin (CaM) and FMSP and naringenin, docking studies were performed. By using fluorescence emission spectra, the effects of FMSP and naringenin on CaM structure and activity were studied. CaM-dependent activation of phosphodiesterase 1 (PDE1) by FMSP in relation to naringenin and their combination were compared. Effects of these compounds on PDE1 inhibition, cAMP accumulation, and cAMP-dependent protein kinase A (PKA) activation were assayed. RESULTS The combination of FMSP and naringenin had more inhibitory effects on CaM structure than FMSP and naringenin alone. Results of docking analyses also confirmed efficient interaction of the two compounds with a hydrophobic pocket of calmodulin active site. Kinetic analyses of these agents' interaction with CaM showed FMSP and naringenin both competitively inhibited PDE1 activation without changing the Vmax parameter. FMSP and naringenin synergistically increased Km values at a higher level compared to FMSP or naringenin alone. The combination of these two agents also had more cytotoxic effects on cancer cells than FMSP alone. CONCLUSIONS It was shown that mechanism of proliferation inhibition in both cancer cells by these compounds is based on CaM and consequent PDE inhibition followed by intracellular cAMP level elevation and increased PKA activity in a dose-dependent manner.
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Affiliation(s)
- Sadegh Rajabi
- Traditional Medicine and Materia Medica Research Center (TMRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shokoofe Noori
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Reza Ashrafi
- Department of Biochemistry, Afzalipoor Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahsa Azami Movahed
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Farzaneh
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afshin Zarghi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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170
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Baltzer S, Bulatov T, Schmied C, Krämer A, Berger BT, Oder A, Walker-Gray R, Kuschke C, Zühlke K, Eichhorst J, Lehmann M, Knapp S, Weston J, von Kries JP, Süssmuth RD, Klussmann E. Aurora Kinase A Is Involved in Controlling the Localization of Aquaporin-2 in Renal Principal Cells. Int J Mol Sci 2022; 23:ijms23020763. [PMID: 35054947 PMCID: PMC8776063 DOI: 10.3390/ijms23020763] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/30/2021] [Accepted: 01/08/2022] [Indexed: 02/01/2023] Open
Abstract
The cAMP-dependent aquaporin-2 (AQP2) redistribution from intracellular vesicles into the plasma membrane of renal collecting duct principal cells induces water reabsorption and fine-tunes body water homeostasis. However, the mechanisms controlling the localization of AQP2 are not understood in detail. Using immortalized mouse medullary collecting duct (MCD4) and primary rat inner medullary collecting duct (IMCD) cells as model systems, we here discovered a key regulatory role of Aurora kinase A (AURKA) in the control of AQP2. The AURKA-selective inhibitor Aurora-A inhibitor I and novel derivatives as well as a structurally different inhibitor, Alisertib, prevented the cAMP-induced redistribution of AQP2. Aurora-A inhibitor I led to a depolymerization of actin stress fibers, which serve as tracks for the translocation of AQP2-bearing vesicles to the plasma membrane. The phosphorylation of cofilin-1 (CFL1) inactivates the actin-depolymerizing function of CFL1. Aurora-A inhibitor I decreased the CFL1 phosphorylation, accounting for the removal of the actin stress fibers and the inhibition of the redistribution of AQP2. Surprisingly, Alisertib caused an increase in actin stress fibers and did not affect CFL1 phosphorylation, indicating that AURKA exerts its control over AQP2 through different mechanisms. An involvement of AURKA and CFL1 in the control of the localization of AQP2 was hitherto unknown.
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Affiliation(s)
- Sandrine Baltzer
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Timur Bulatov
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Christopher Schmied
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Andreas Krämer
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
- DKTK (German Translational Research Network), Partner Site Frankfurt/Mainz, 60590 Frankfurt am Main, Germany
| | - Benedict-Tilman Berger
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
| | - Andreas Oder
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Ryan Walker-Gray
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Christin Kuschke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Kerstin Zühlke
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
| | - Jenny Eichhorst
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Martin Lehmann
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Stefan Knapp
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, 60438 Frankfurt am Main, Germany; (A.K.); (B.-T.B.); (S.K.)
- Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Strasse 15, 60438 Frankfurt am Main, Germany
- DKTK (German Translational Research Network), Partner Site Frankfurt/Mainz, 60590 Frankfurt am Main, Germany
- Frankfurt Cancer Institute, 60596 Frankfurt am Main, Germany
| | - John Weston
- JQuest Consulting, Carl-Orff-Weg 25, 65779 Kelkheim, Germany;
| | - Jens Peter von Kries
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (C.S.); (A.O.); (J.E.); (M.L.); (J.P.v.K.)
| | - Roderich D. Süssmuth
- Institute of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 135, 10623 Berlin, Germany; (T.B.); (R.D.S.)
| | - Enno Klussmann
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Robert-Rössle-Strasse 10, 13125 Berlin, Germany; (S.B.); (R.W.-G.); (C.K.); (K.Z.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10785 Berlin, Germany
- Correspondence: ; Tel.: +49-30-9406-2596
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171
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Jiang Y, Luo Y, Chen X, Liu N, Hou J, Piao J, Song C, Si C, Hu W, Li X. Senkyunolide H protects PC12 cells from OGD/R-induced injury via cAMP-PI3K/AKT signaling pathway. J Ethnopharmacol 2022; 282:114659. [PMID: 34543683 DOI: 10.1016/j.jep.2021.114659] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/05/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Senkyunolide H (SNH) is a bioactive phthalide isolated from Ligusticum chuanxiong Hort rhizome and was reported to have multiple pharmacological effects. AIM OF THE STUDY The study was performed to verify the potency of SNH protecting PC12 cells from oxygen glucose deprivation/reperfusion (OGD/R)-induced injury and to elucidate the underlying mechanisms. MATERIALS AND METHODS OGD/R model was established in PC12 cells and the cell viability was measured by MTT assay. The cell morphology was observed using scanning electron microscope (SEM). The potential targets of SNH and related targets of OGD/R were screened, and a merged protein-protein interaction (PPI) network of SNH and OGD/R was constructed based on the network pharmacology analysis. Kyoto Encyclopedia of Genes and Genomes (KEGG) database was used for pathway analysis. Intracellular cAMP level and the protein expression levels were measured to elucidate the underlying mechanisms. RESULTS SNH pretreatment protected PC12 cells against OGD/R-induced cell death. SNH also significantly protected the cell protrusion. A merged PPI network was constructed and the shared candidate targets significantly enriched in cAMP signaling pathway. The level of intracellular cAMP and the protein level of p-CREB, p-AKT, p-PDK1 and PKA protein were up-regulated after the treatment of SNH compared with OGD/R modeling. CONCLUSIONS The present study indicated that SNH protected PC12 cells from OGD/R-induced injury via cAMP-PI3K/AKT signaling pathway.
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Affiliation(s)
- Yunyao Jiang
- Institute for Chinese Materia Medica, School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China.
| | - Yanyan Luo
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457, China.
| | - Xinyi Chen
- Institute for Chinese Materia Medica, School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China.
| | - Nan Liu
- Beijing Increasepharm Safety and Efficacy Co., Ltd, Beijing, 102206, China.
| | - Jincai Hou
- Jing-Jin-Ji Joint Innovation Pharmaceutical (Beijing) Co., Ltd., Beijing, 100083, China.
| | - Jingpei Piao
- College of Life Sciences, Jilin Normal University, Siping, 136000, China.
| | - Chao Song
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457, China.
| | - Weicheng Hu
- School of Life Sciences, Huaiyin Normal University, Huaian, 223300, China.
| | - Xueqin Li
- Department of General Practice, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, China.
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172
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Arena DT, Hofer AM. Imaging the cAMP Signaling Microdomain of the Primary Cilium Using Targeted FRET-Based Biosensors. Methods Mol Biol 2022; 2483:77-92. [PMID: 35286670 DOI: 10.1007/978-1-0716-2245-2_5] [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] [Indexed: 06/14/2023]
Abstract
Optical approaches have revolutionized our view of second messenger signaling in organelles, allowing precise time-resolved assessment of soluble signaling molecules in situ. Among the most challenging of subcellular signaling microdomains to assay is the primary cilium. A petite but visually arresting organelle, the primary cilium extends from the cell surface of most non-dividing cells. Recently, the concept of the primary cilium as an independent cAMP signaling organelle has attracted substantial interest. The cilium sequesters a very specific subset of ciliary cAMP-linked GPCRs in its membrane (e.g., 5-HT6, D1R, MCR4, FFAR4, TGR5), as well as other key components of the cAMP signaling machinery that include adenylyl cyclases, GNAS, phosphodiesterases, PKA holoenzyme, and biologically important PKA targets. Here we provide a practical guide to assessing ciliary cAMP signals in live cells using targeted genetically encoded FRET biosensors. Key experimental difficulties include gathering sufficient signal from such a small, photon-limited volume, and the susceptibility of cilia to movement artifacts. Other challenges are associated with the fidelity of sensor targeting and the difficulties in distinguishing between cAMP signals produced exclusively within the cilium vs. those that emanate from the cell body. Here we describe ratio imaging approaches used in our lab for time-resolved visualization of ciliary cAMP in cultured renal cells. These methods can be readily adapted to other cell types and microscopy platforms according to the needs of the user.
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Affiliation(s)
- Danielle T Arena
- VA Boston Healthcare System and the Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Aldebaran M Hofer
- VA Boston Healthcare System and the Department of Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA.
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173
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Schleicher K, Hester S, Stegmann M, Zaccolo M. Quantitative Phosphoproteomics to Study cAMP Signaling. Methods Mol Biol 2022; 2483:281-296. [PMID: 35286683 DOI: 10.1007/978-1-0716-2245-2_18] [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] [Indexed: 11/26/2022]
Abstract
Cyclic adenosine monophosphate (cAMP) signaling activates multiple downstream cellular targets in response to different stimuli. Specific phosphorylation of key target proteins via activation of the cAMP effector protein kinase A (PKA) is achieved via signal compartmentalization. Termination of the cAMP signal is mediated by phosphodiesterases (PDEs), a diverse group of enzymes comprising several families that localize to distinct cellular compartments. By studying the effects of inhibiting individual PDE families on the phosphorylation of specific targets it is possible to gain information on the subcellular spatial organization of this signaling pathway.We describe a phosphoproteomic approach that can detect PDE family-specific phosphorylation changes in cardiac myocytes against a high phosphorylation background. The method combines dimethyl labeling and titanium dioxide-mediated phosphopeptide enrichment, followed by tandem mass spectrometry.
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Affiliation(s)
- Katharina Schleicher
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK.
| | - Svenja Hester
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Oxford, UK
- Department of Biochemistry, University of Oxford, Oxford, UK
| | - Monika Stegmann
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Manuela Zaccolo
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
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174
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Dyachok O, Xu Y, Idevall-Hagren O, Tengholm A. Fluorescent Translocation Reporters for Sub-plasma Membrane cAMP Imaging. Methods Mol Biol 2022; 2483:319-338. [PMID: 35286685 DOI: 10.1007/978-1-0716-2245-2_20] [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] [Indexed: 06/14/2023]
Abstract
A wide range of fluorescent sensors with different properties have been developed for imaging of cAMP signals in living cells and tissues. Most cAMP reporters have been designed to undergo changes in fluorescence resonance energy transfer but there are alternative techniques with advantages for certain applications. Here, we describe protocols for cAMP recordings in the sub-plasma membrane space based on detection of translocation of engineered, fluorescent protein-tagged protein kinase A subunits between the plasma membrane and the cytoplasm. Changes in reporter localization can be detected with either confocal or total internal reflection fluorescence microscopy but signal changes are more robust and image analyses less complicated with the latter technique. We show how translocation reporters can be used to study sub-plasma membrane cAMP signals, including oscillations, in insulin-secreting β-cells stimulated with glucose and G-protein-coupled receptor agonists. We also demonstrate how translocation reporters can be combined with other sensors for simultaneous recordings of the cytosolic Ca2+ concentration, protein kinase A activity or plasma-membrane binding of the cAMP effector protein Epac2. Fluorescent translocation reporters thus provide a versatile complement to the growing cAMP imaging toolkit for elucidating sub-plasma membrane cAMP signals in various types of cells.
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Affiliation(s)
- Oleg Dyachok
- Department of Medical Cell Biology, Uppsala University, Biomedical Centre, Uppsala, Sweden
| | - Yunjian Xu
- Department of Medical Cell Biology, Uppsala University, Biomedical Centre, Uppsala, Sweden
| | - Olof Idevall-Hagren
- Department of Medical Cell Biology, Uppsala University, Biomedical Centre, Uppsala, Sweden
| | - Anders Tengholm
- Department of Medical Cell Biology, Uppsala University, Biomedical Centre, Uppsala, Sweden.
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175
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Demuyser L, Van Genechten W, Van Dijck P. Assessment of cAMP-PKA Signaling in Candida glabrata by FRET-Based Biosensors. Methods Mol Biol 2022; 2542:177-191. [PMID: 36008665 DOI: 10.1007/978-1-0716-2549-1_13] [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] [Indexed: 06/15/2023]
Abstract
Fluorescence or Förster resonance energy transfer (FRET)-based biosensors are used to monitor activity through molecular pathways inside the cell. Binding of secondary metabolites or enzyme-guided modification of protein targets can be assessed by quantifying the rate of energy transfer between two adequate fluorophores. The AKAR3 sensor contains a protein kinase A (PKA) phosphorylation site, which upon phosphorylation interacts with a ligand domain, bringing together FRET donor and acceptor fluorophores and allowing FRET. The EPAC2 sensor contains a cyclic adenosine monophosphate (cAMP)-binding domain. Upon binding of cAMP, donor and acceptor molecules are separated, thereby lowering energy transfer. Since the cAMP-PKA pathway is of great importance for regulation of growth, survival, and virulence in Candida species, monitoring the activity of this pathway in a time- and space-resolved manner allows for detailed investigation of potential drug targets. In this chapter, we describe how these FRET-based biosensors can be used in a practical setup.
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Affiliation(s)
- Liesbeth Demuyser
- VIB-KU Leuven Center for Microbiology, Flanders, Belgium
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Heverlee, Leuven, Belgium
| | - Wouter Van Genechten
- VIB-KU Leuven Center for Microbiology, Flanders, Belgium
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Heverlee, Leuven, Belgium
- Chemistry-Biochemistry Department, Molecular and Structural Biology Section, KU Leuven, Heverlee, Leuven, Belgium
| | - Patrick Van Dijck
- VIB-KU Leuven Center for Microbiology, Flanders, Belgium.
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven, Heverlee, Leuven, Belgium.
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176
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Ladant D. A Bacterial Two-Hybrid System for In Vivo Assays of Protein-Protein Interactions and Drug Discovery. Methods Mol Biol 2022; 2548:145-167. [PMID: 36151497 DOI: 10.1007/978-1-0716-2581-1_10] [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] [Indexed: 06/16/2023]
Abstract
The bacterial adenylate cyclase-based two-hybrid (BACTH) system is a robust and simple genetic assay used to monitor protein-protein interactions in vivo. This system is based on functional complementation between two fragments from the catalytic domain of Bordetella pertussis adenylate cyclase (AC) to reconstitute a cyclic AMP (cAMP)-signaling cascade in Escherichia coli. Interactions between two chimeric proteins result in the synthesis of cAMP, which activates the transcription of various catabolite operons, leading to selectable phenotypes. One advantageous feature of this signaling cascade is that the physical association between the two interacting hybrid proteins is spatially separated from the transcriptional activation readout. Consequently, the BACTH system can detect protein-protein interactions occurring at various subcellular localizations. The system has been used to characterize interactions between soluble or membrane proteins of prokaryotic, eukaryotic, or viral origin. The BACTH assay can be used to uncover the region(s), domain(s), or amino acid residue(s) of a protein involved in an interaction with a specific partner. The BACTH system can also be adapted for the high-throughput screening of small molecules able to interfere with protein-protein interactions.
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Affiliation(s)
- Daniel Ladant
- Unité de Biochimie des Interactions Macromoléculaires, Département de Biologie Structurale et Chimie, CNRS UMR 3528, Institut Pasteur, Paris Cedex 15, France.
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177
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Abstract
3',5'-cyclic adenosine monophosphate (cAMP) is one of the most important and ubiquitous second messengers in cells downstream of G protein-coupled receptors (GPCRs). In a single cell, cAMP can exert innumerous specific cell functions in response to more than one hundred different GPCRs. Cells achieve this extraordinary functional specificity of cAMP signaling by limiting the spread of these signals in space and time. To do so, cells establish nanometer-size cAMP gradients by immobilizing cAMP via cAMP binding proteins and via targeted activity of cAMP-degrading phosphodiesterases (PDEs). As cAMP gradients appear to be essential for cell function, new technologies are needed to accurately measure cAMP gradients in intact cells with nanometer-resolution. Here we describe FRET-based cAMP nanorulers to measure local, nanometer-size cAMP gradients in intact cells in the direct vicinity of PDEs.
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Affiliation(s)
- Charlotte Kayser
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Receptor Signaling Lab, Robert-Roessle-Strasse 10, Berlin, Germany
| | - Martin J Lohse
- ISAR Bioscience Institute, Semmelweisstraße 5, Munich, Germany
| | - Andreas Bock
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Receptor Signaling Lab, Robert-Roessle-Strasse 10, Berlin, Germany.
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, University of Leipzig, Haertelstrasse, Leipzig, Germany.
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178
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Cecon E, Guillaume JL, Jockers R. Functional Investigation of Melatonin Receptor Activation by Homogenous cAMP Assay. Methods Mol Biol 2022; 2550:179-188. [PMID: 36180691 DOI: 10.1007/978-1-0716-2593-4_22] [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] [Indexed: 06/16/2023]
Abstract
Cyclic adenosine monophosphate (cAMP) is an important ubiquitous second messenger and one of the major pathways transducing the activation of G protein-coupled receptors (GPCRs). Quantifying intracellular levels of cAMP in an accurate and high-throughput manner is, therefore, of high interest to access functional responses of GPCRs. The neurohormone melatonin is selectively recognized by two GPCRs in mammals, named MT1 and MT2. Both have an inhibitory action on intracellular cAMP levels. Here, we describe a homogeneous high-throughput-compatible methodology routinely used in our laboratory to measure cAMP levels following activation of melatonin receptors.
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Affiliation(s)
- Erika Cecon
- Université de Paris, Institut Cochin, INSERM, CNRS, Paris, France
| | | | - Ralf Jockers
- Université de Paris, Institut Cochin, INSERM, CNRS, Paris, France.
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179
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Feng X, Xiao Y, Guo Q, Peng H, Zhou HY, Wang JP, Xia ZY. Parathyroid hormone alleviates non-alcoholic liver steatosis via activating the hepatic cAMP/PKA/CREB pathway. Front Endocrinol (Lausanne) 2022; 13:899731. [PMID: 36060945 PMCID: PMC9428460 DOI: 10.3389/fendo.2022.899731] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 07/25/2022] [Indexed: 11/17/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD), hallmarked by liver steatosis, is becoming a global concern, but effective and safe drugs for NAFLD are still lacking at present. Parathyroid hormone (PTH), the only FDA-approved anabolic treatment for osteoporosis, is important in calcium-phosphate homeostasis. However, little is known about its potential therapeutic effects on other diseases. Here, we report that intermittent administration of PTH ameliorated non-alcoholic liver steatosis in diet-induced obese (DIO) mice and db/db mice, as well as fasting-induced hepatic steatosis. In vitro, PTH inhibits palmitic acid-induced intracellular lipid accumulation in a parathyroid hormone 1 receptor (PTH1R)-dependent manner. Mechanistically, PTH upregulates the expression of genes involved in lipid β-oxidation and suppresses the expression of genes related to lipid uptake and de novo lipogenesis by activating the cAMP/PKA/CREB pathway. Taken together, our current finding proposes a new therapeutic role of PTH on NAFLD.
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Affiliation(s)
- Xu Feng
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Hui Peng
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Hai-Yan Zhou
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
| | - Jian-Ping Wang
- Department of Endocrinology, The Second Affiliated Hospital of University of South China, Hengyang, China
- *Correspondence: Zhu-Ying Xia, ; Jian-Ping Wang,
| | - Zhu-Ying Xia
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
- *Correspondence: Zhu-Ying Xia, ; Jian-Ping Wang,
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180
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Mehta YR, Lewis SA, Leo KT, Chen L, Park E, Raghuram V, Chou CL, Yang CR, Kikuchi H, Khundmiri S, Poll BG, Knepper MA. "ADPKD-omics": determinants of cyclic AMP levels in renal epithelial cells. Kidney Int 2022; 101:47-62. [PMID: 34757121 PMCID: PMC10671900 DOI: 10.1016/j.kint.2021.10.014] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/30/2021] [Accepted: 10/12/2021] [Indexed: 12/30/2022]
Abstract
The regulation of cyclic adenosine monophosphate (cAMP) levels in kidney epithelial cells is important in at least 2 groups of disorders, namely water balance disorders and autosomal dominant polycystic kidney disease. Focusing on the latter, we review genes that code for proteins that are determinants of cAMP levels in cells. We identify which of these determinants are expressed in the 14 kidney tubule segments using recently published RNA-sequencing and protein mass spectrometry data ("autosomal dominant polycystic kidney disease-omics"). This includes G protein-coupled receptors, adenylyl cyclases, cyclic nucleotide phosphodiesterases, cAMP transporters, cAMP-binding proteins, regulator of G protein-signaling proteins, G protein-coupled receptor kinases, arrestins, calcium transporters, and calcium-binding proteins. In addition, compartmentalized cAMP signaling in the primary cilium is discussed, and a specialized database of the proteome of the primary cilium of cultured "IMCD3" cells is provided as an online resource (https://esbl.nhlbi.nih.gov/Databases/CiliumProteome/). Overall, this article provides a general resource in the form of a curated list of proteins likely to play roles in determination of cAMP levels in kidney epithelial cells and, therefore, likely to be determinants of progression of autosomal dominant polycystic kidney disease.
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Affiliation(s)
- Yash R Mehta
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Spencer A Lewis
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Kirby T Leo
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Lihe Chen
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Euijung Park
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Viswanathan Raghuram
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Chung-Lin Chou
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Chin-Rang Yang
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hiroaki Kikuchi
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Syed Khundmiri
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Brian G Poll
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Mark A Knepper
- Epithelial Systems Biology Laboratory, Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
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181
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Yang Y, Wang C, Shen H, Fan H, Liu J, Wu N. Cis-bifenthrin inhibits cortisol and aldosterone biosynthesis in human adrenocortical H295R cells via cAMP signaling cascade. Environ Toxicol Pharmacol 2022; 89:103784. [PMID: 34896276 DOI: 10.1016/j.etap.2021.103784] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 12/05/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Cis-bifenthrin (cis-BF) is a common-used pyrethroid insecticide frequently detected in environmental and biological matrices. Mounting evidence highlights the endocrine disrupting effects of cis-BF due to anti-estrogenic or anti-androgenic activity. However, little is known about the exposure effects of cis-BF on adrenal cortex function. In this study, effects of cis-BF on biosynthesis of adrenal steroids, as well as the potential mechanisms were investigated in human adrenocortical carcinoma (H295R) cells. Cis-BF decreased basal production levels of cortisol and aldosterone, as well as cAMP-induced production of cortisol. Both he basal and cAMP-stimulated transcriptional levels of several steroidogenic genes were significantly down-regulated by cis-BF. As an important rate-limiting enzyme in steroidogenesis, the protein level of StAR was prohibited by cis-BF on both basal and cAMP-induced conditions. Intracellular level of cAMP was significantly reduced by cis-BF. Overall, these data suggest that cis-BF may inhibit the biosynthesis of cortisol and aldosterone via disrupting cAMP signaling cascade.
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Affiliation(s)
- Ye Yang
- School of Public Health, Hangzhou Medical College, Hangzhou 310013, China.
| | - Chunlei Wang
- Department of Public Health, Yu Hang No.2 People's Hospital, Hangzhou 311100, China
| | - Hong Shen
- School of Public Health, Hangzhou Medical College, Hangzhou 310013, China
| | - Hongliang Fan
- School of Public Health, Hangzhou Medical College, Hangzhou 310013, China
| | - Jing Liu
- Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Nanxiang Wu
- School of Public Health, Hangzhou Medical College, Hangzhou 310013, China
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182
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Rich TC, Xin W, Leavesley SJ, Francis CM, Taylor M. Ion Channel-Based Reporters for cAMP Detection. Methods Mol Biol 2022; 2483:265-279. [PMID: 35286682 DOI: 10.1007/978-1-0716-2245-2_17] [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] [Indexed: 06/14/2023]
Abstract
In the last 20 years tremendous progress has been made in the development of single cell cAMP sensors. Sensors are based upon cAMP binding proteins that have been modified to transduce cAMP concentrations into electrical or fluorescent readouts that can be readily detected using patch clamp amplifiers, photomultiplier tubes, or cameras. Here, we describe two complementary approaches for the detection and measurement of cAMP signals near the plasma membrane of cells using cyclic nucleotide (CNG) channel-based probes. These probes take advantage of the ability of CNG channels to transduce small changes in cAMP concentration into ionic flux through channel pores that can be readily detected by measuring Ca2+ and/or Mn2+ influx or by measuring ionic currents.
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Affiliation(s)
- Thomas C Rich
- Department of Pharmacology, University of South Alabama, Mobile, AL, USA.
- Center for Lung Biology, University of South Alabama, Mobile, AL, USA.
| | - Wenkuan Xin
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Silas J Leavesley
- Department of Pharmacology, University of South Alabama, Mobile, AL, USA
- Center for Lung Biology, University of South Alabama, Mobile, AL, USA
- Department of Chemical and Biomolecular Engineering, University of South Alabama, Mobile, AL, USA
| | - C Michael Francis
- Center for Lung Biology, University of South Alabama, Mobile, AL, USA
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, AL, USA
| | - Mark Taylor
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, AL, USA
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183
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Sharma VK, Yang X, Kim SK, Mafi A, Saiz-Sanchez D, Villanueva-Anguita P, Xiao L, Inoue A, Goddard WA, Loh YP. Novel interaction between neurotrophic factor-α1/carboxypeptidase E and serotonin receptor, 5-HTR1E, protects human neurons against oxidative/neuroexcitotoxic stress via β-arrestin/ERK signaling. Cell Mol Life Sci 2021; 79:24. [PMID: 34966948 PMCID: PMC8732845 DOI: 10.1007/s00018-021-04021-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 07/26/2021] [Revised: 10/14/2021] [Accepted: 11/01/2021] [Indexed: 12/18/2022]
Abstract
Protecting neurons from death during oxidative and neuroexcitotoxic stress is key for preventing cognitive dysfunction. We uncovered a novel neuroprotective mechanism involving interaction between neurotrophic factor-α1 (NF-α1/carboxypeptidase E, CPE) and human 5-HTR1E, a G protein-coupled serotonin receptor with no previously known neurological function. Co-immunoprecipitation and pull-down assays confirmed interaction between NFα1/CPE and 5-HTR1E and 125I NF-α1/CPE-binding studies demonstrated saturable, high-affinity binding to 5-HTR1E in stably transfected HEK293 cells (Kd = 13.82 nM). Treatment of 5-HTR1E stable cells with NF-α1/CPE increased pERK 1/2 and pCREB levels which prevented a decrease in pro-survival protein, BCL2, during H2O2-induced oxidative stress. Cell survival assay in β-arrestin Knockout HEK293 cells showed that the NF-α1/CPE-5-HTR1E-mediated protection against oxidative stress was β-arrestin-dependent. Molecular dynamics studies revealed that NF-α1/CPE interacts with 5-HTR1E via 3 salt bridges, stabilized by several hydrogen bonds, independent of the serotonin pocket. Furthermore, after phosphorylating the C-terminal tail and intracellular loop 3 (ICL3) of NF-α1/CPE-5-HTR1E, it recruited β-arrestin1 by forming numerous salt bridges and hydrogen bonds to ICL2 and ICL3, leading to activation of β-arrestin1. Immunofluorescence studies showed 5-HTR1E and NF-α1/CPE are highly expressed and co-localized on cell surface of human hippocampal neurons. Importantly, knock-down of 5-HTR1E in human primary neurons diminished the NF-α1/CPE-mediated protection of these neurons against oxidative stress and glutamate neurotoxicity-induced cell death. Thus, NF-α1/CPE uniquely interacts with serotonin receptor 5-HTR1E to activate the β-arrestin/ERK/CREB/BCL2 pathway to mediate stress-induced neuroprotection.
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Affiliation(s)
- Vinay Kumar Sharma
- Section on Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 49, Convent Drive, Bldg 49, Rm 6A-10, Bethesda, MD, 20892, USA
| | - Xuyu Yang
- Section on Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 49, Convent Drive, Bldg 49, Rm 6A-10, Bethesda, MD, 20892, USA
| | - Soo-Kyung Kim
- Materials and Process Simulation Center, California Institute of Technology, Pasedena, CA, 91125, USA
| | - Amirhossein Mafi
- Materials and Process Simulation Center, California Institute of Technology, Pasedena, CA, 91125, USA
| | - Daniel Saiz-Sanchez
- Neuroplasticity and Neurodegeneration Laboratory, Medical School, Regional Center for Biomedical Research, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Patricia Villanueva-Anguita
- Neuroplasticity and Neurodegeneration Laboratory, Medical School, Regional Center for Biomedical Research, University of Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Lan Xiao
- Section on Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 49, Convent Drive, Bldg 49, Rm 6A-10, Bethesda, MD, 20892, USA
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, 980-8578, Japan
| | - William A Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasedena, CA, 91125, USA.
| | - Y Peng Loh
- Section on Cellular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 49, Convent Drive, Bldg 49, Rm 6A-10, Bethesda, MD, 20892, USA.
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184
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Yang ZS, Pan HY, Shi WW, Chen ST, Wang Y, Li MY, Zhang HY, Yang C, Liu AX, Yang ZM. Regulation and Function of Laminin A5 during Mouse and Human Decidualization. Int J Mol Sci 2021; 23:199. [PMID: 35008625 PMCID: PMC8745792 DOI: 10.3390/ijms23010199] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 01/03/2023] Open
Abstract
Decidualization is essential to the establishment of pregnancy in rodents and primates. Laminin A5 (encoding by Laminin α5) is a member of the laminin family, which is mainly expressed in the basement membranes. Although laminins regulate cellular phenotype maintenance, adhesion, migration, growth, and differentiation, the expression, function, and regulation of laminin A5 during early pregnancy are still unknown. Therefore, we investigated the expression and role of laminin A5 during mouse and human decidualization. Laminin A5 is highly expressed in mouse decidua and artificially induced deciduoma. Laminin A5 is significantly increased under in vitro decidualization. Laminin A5 knockdown significantly inhibits the expression of Prl8a2, a marker for mouse decidualization. Progesterone stimulates the expression of laminin A5 in ovariectomized mouse uterus and cultured mouse stromal cells. We also show that progesterone regulates laminin A5 through the PKA-CREB-C/EBPβ pathway. Laminin A5 is also highly expressed in human pregnant decidua and cultured human endometrial stromal cells during in vitro decidualization. Laminin A5 knockdown by siRNA inhibits human in vitro decidualization. Collectively, our study reveals that laminin A5 may play a pivotal role during mouse and human decidualization via the PKA-CREB-C/EBPβ pathway.
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Affiliation(s)
- Zhen-Shan Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Hai-Yang Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Wen-Wen Shi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Si-Ting Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Ying Wang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Meng-Yuan Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Hai-Yi Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Chen Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
| | - Ai-Xia Liu
- Department of Reproductive Endocrinology, Women’s Hospital, School of Medicine, Zhejiang University, Xueshi Road, Hangzhou 310006, China
| | - Zeng-Ming Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.-S.Y.); (H.-Y.P.); (W.-W.S.); (S.-T.C.); (Y.W.); (M.-Y.L.); (H.-Y.Z.); (C.Y.)
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185
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Kim HJ, Im DU, Chau GC, Mishra NK, Kim IS, Um SH. Novel anti-adipogenic effect of CF 3-allylated indole in 3T3-L1 cells. Chem Biol Interact 2021; 352:109782. [PMID: 34932954 DOI: 10.1016/j.cbi.2021.109782] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 01/03/2023]
Abstract
Indole derivatives from various plants are known to have health benefits because of their anti-cancer, anti-oxidant, anti-inflammatory, and anti-tubercular effects. However, their effects on adipogenesis have not been fully elucidated yet. Herein, we show that a newly synthesized indole derivative, CF3-allylated indole, [(E)-1-(pyrimidin- 2-yl)-2-(4,4,4- trifluorobut-2-enyl)-1H-indole], effectively inhibits adipogenesis. We found that CF3-allylated indole inhibited lipid accumulation and suppressed the expression of CCAAT/enhancer-binding protein α (C/EBPα) and peroxisome proliferator activated receptor γ (PPARγ) in 3T3-L1 cells. The inhibitory effect of CF3-allylated indole primarily occurred at the early phase of adipocyte differentiation by increasing intracellular cyclic adenosine monophosphate (cAMP) levels and enhancing protein kinase A (PKA) and adenosine monophosphate-activated protein kinase (AMPK) signaling. Conversely, depletion of PKA or treatment with a protein kinase A inhibitor (H89) reversed such inhibitory effects of CF3-allylated indole on adipogenesis and PPARγ expression. These results suggest that CF3-allylated indole inhibits early stages of adipogenesis by increasing phosphorylation of PKA/AMPK, leading to decreased expression of adipogenic genes in 3T3-L1 cells. These results indicate that CF3-allylated indole has potential for controlling initial adipocyte differentiation in metabolic disorders such as obesity.
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Affiliation(s)
- Hee Jung Kim
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Samsung Medical Center, Sungkyunkwan University, Seoul, 06351, Republic of Korea
| | - Dong Uk Im
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Samsung Medical Center, Sungkyunkwan University, Seoul, 06351, Republic of Korea
| | - Gia Cac Chau
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Neeraj Kumar Mishra
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Sung Hee Um
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Samsung Medical Center, Sungkyunkwan University, Seoul, 06351, Republic of Korea; Biomedical Institute Convergence at Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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186
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Ahmed S, Kim Y. PGE 2 mediates hemocyte-spreading behavior by activating aquaporin via cAMP and rearranging actin cytoskeleton via Ca 2. Dev Comp Immunol 2021; 125:104230. [PMID: 34388674 DOI: 10.1016/j.dci.2021.104230] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/04/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Spreading behavior of hemocytes (= insect blood cells) is essential for cellular immune responses against various microbial pathogens. It is activated by prostaglandin E2 (PGE2) via its membrane receptor associated with secondary messenger, cAMP, in insects. This study observed an increase of calcium ion (Ca2+) level after an acute increase of cAMP induced by PGE2 treatment and clarified the intracellular signals underlying the hemocyte-spreading behavior. Inhibition of Ca2+ flux significantly impaired the hemocyte-spreading and subsequent cellular immune response, phagocytosis. The up-regulation of intracellular Ca2+ in response to PGE2 was dependent on cAMP because RNA interference (RNAi) of PGE2 receptor expression or inhibiting adenylate cyclase prevented Ca2+ mobilization. The up-regulation of Ca2+ was induced by inositol triphosphate (IP3) via its specific IP3 receptor. Furthermore, inhibition of ryanodine receptor impaired Ca2+ mobilization, suggesting Ca2+-induced Ca2+ release. However, the effective spreading behavior of hemocytes was dependent on both secondary messengers. Ca2+ signal stimulated by cAMP was required for activating small G proteins because RNAi treatments of small G proteins such as Rac1, RhoA, and Cdc42 failed to stimulate hemocyte-spreading. In contrast, aquaporin was activated by cAMP. Its activity was necessary for changing cell volume during hemocyte-spreading. These results indicate that PGE2 mediates hemocyte-spreading via cAMP signal to activate aquaporin and via Ca2+ signal to activate actin cytoskeletal rearrangement.
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Affiliation(s)
- Shabbir Ahmed
- Department of Plant Medicals, Andong National University, Andong, 36729, South Korea
| | - Yonggyun Kim
- Department of Plant Medicals, Andong National University, Andong, 36729, South Korea.
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187
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Sasaki H, Zhang Y, Emala CW, Mizuta K. Melatonin MT 2 receptor is expressed and potentiates contraction in human airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2021; 321:L991-L1005. [PMID: 34612067 PMCID: PMC8715028 DOI: 10.1152/ajplung.00273.2021] [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: 06/28/2021] [Revised: 09/14/2021] [Accepted: 09/29/2021] [Indexed: 11/22/2022] Open
Abstract
Nocturnal asthma is characterized by heightened bronchial reactivity at night, and plasma melatonin concentrations are higher in patients with nocturnal asthma symptoms. Numerous physiological effects of melatonin are mediated via its specific G protein-coupled receptors (GPCRs) named the MT1 receptor, which couples to both Gq and Gi proteins, and the MT2 receptor, which couples to Gi. We investigated whether melatonin receptors are expressed on airway smooth muscle; whether they regulate intracellular cyclic AMP (cAMP) and calcium concentrations ([Ca2+]i), which modulate airway smooth muscle tone; and whether they promote airway smooth muscle cell proliferation. We detected the mRNA and protein expression of the melatonin MT2 but not the MT1 receptor in native human and guinea pig airway smooth muscle and cultured human airway smooth muscle (HASM) cells by RT-PCR, immunoblotting, and immunohistochemistry. Activation of melatonin MT2 receptors with either pharmacological concentrations of melatonin (10-100 µM) or the nonselective MT1/MT2 agonist ramelteon (10 µM) significantly inhibited forskolin-stimulated cAMP accumulation in HASM cells, which was reversed by the Gαi protein inhibitor pertussis toxin or knockdown of the MT2 receptor by its specific siRNA. Although melatonin by itself did not induce an initial [Ca2+]i increase and airway contraction, melatonin significantly potentiated acetylcholine-stimulated [Ca2+]i increases, stress fiber formation through the MT2 receptor in HASM cells, and attenuated the relaxant effect of isoproterenol in guinea pig trachea. These findings suggest that the melatonin MT2 receptor is expressed in ASM, and modulates airway smooth muscle tone via reduced cAMP production and increased [Ca2+]i.
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Affiliation(s)
- Haruka Sasaki
- Division of Dento-oral Anesthesiology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yi Zhang
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Charles W Emala
- Department of Anesthesiology, College of Physicians and Surgeons of Columbia University, New York, New York
| | - Kentaro Mizuta
- Division of Dento-oral Anesthesiology, Tohoku University Graduate School of Dentistry, Sendai, Japan
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188
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Schavinski AZ, Machado J, Morgan HJN, Lautherbach N, Paula-Gomes S, Kettelhut IC, Navegantes LCC. Calcitonin gene-related peptide exerts inhibitory effects on autophagy in the heart of mice. Peptides 2021; 146:170677. [PMID: 34695513 DOI: 10.1016/j.peptides.2021.170677] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/27/2021] [Accepted: 10/20/2021] [Indexed: 12/20/2022]
Abstract
Calcitonin Gene-Related Peptide (CGRP) is a potent vasodilator peptide widely distributed in the central nervous system and various peripheral tissues, including cardiac muscle. However, its role in heart protein metabolism remains unknown. We examined the acute effects of CGRP on autophagy and the related signaling pathways in the heart mice and cultured neonatal cardiomyocytes. CGRP (100 μg kg-1; s.c.) or 0.9 % saline was injected in awake male C57B16 mice, and the metabolic profile was determined up to 60 min. In fed mice, CGRP drastically increased glycemia and reduced insulinemia, an effect that was accompanied by reduced cardiac phosphorylation levels of Akt at Ser473 without affecting FoxO. Despite these catabolic effects, CGRP acutely inhibited autophagy as estimated by the decrease in LC3II:LC3I and autophagic flux. In addition, the fasting-induced autophagic flux in mice hearts was entirely abrogated by one single injection of CGRP. In parallel, CGRP stimulated PKA/CREB and mTORC1 signaling and increased the phosphorylation of Unc51-like kinase-1 (ULK1), an essential protein in autophagy initiation. Similar effects were observed in cardiomyocytes, in which CGRP also inhibited autophagic flux and stimulated Akt and FoxO phosphorylation. These findings suggest that CGRP in vivo acutely suppresses autophagy in the heart of fed and fasted mice, most likely through the activation of PKA/mTORC1 signaling but independent of Akt.
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Affiliation(s)
- Aline Zanatta Schavinski
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Juliano Machado
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute for Diabetes and Cancer, Germany
| | | | - Natalia Lautherbach
- Department of Biochemistry/Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Silvia Paula-Gomes
- Department of Biological Sciences, Federal University of Ouro Preto, Brazil
| | - Isis C Kettelhut
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; Department of Biochemistry/Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Luiz Carlos C Navegantes
- Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
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189
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Yu Y, Wang J, Huang X. The anti-depressant effects of a novel PDE4 inhibitor derived from resveratrol. Pharm Biol 2021; 59:418-423. [PMID: 33847209 PMCID: PMC8049461 DOI: 10.1080/13880209.2021.1907422] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/23/2021] [Accepted: 03/18/2021] [Indexed: 06/01/2023]
Abstract
CONTEXT Resveratrol has shown anti-stress and anti-depressant-like abilities involved in inhibiting phosphodiesterase-4 (PDE4) enzyme. However, its application is limited due to its low efficacy, bioavailability and selectivity. OBJECTIVE This study synthesized a new resveratrol derivative RES003 and evaluated its PDE4 inhibitory and anti-depressant-like activities in vitro and in vivo, respectively. MATERIALS AND METHODS PDEs inhibitory activities were evaluated by radioactive tracer method. Anti-depressant-like activities of novel resveratrol analogue (RES003) at doses of 2.5, 5.0 and 10 mg/kg was investigated by sugar water consumption and forced swimming tests using male ICR mice under chronic unpredictable stress procedure for 10 days. A total of 84 mice were randomly distributed into seven groups (n = 12). Drugs and vehicle were administered (intra-gastric or intra-peritoneal) once a day from the first to the last day. The molecular mechanisms were identified by western blot. RESULTS RES003 showed more potent PDE4 inhibitory activity (half maximal inhibitory concentration (IC50), 0.87 μM) and better selectivity than resveratrol (IC50, 18.8 μM). RES003 could significantly increase the consumption of sugar water (p < 0.01) and immobility time (p < 0.01) compared to vehicle-treated stressed groups at doses of 5 and 10 mg/kg. Furthermore, RES003 could significantly increase the levels of cyclic adenosine monophosphate response element binding protein phosphorylation (10 mg/kg, p < 0.05) and brain-derived neurotrophic factor (BDNF) expression (5 and 10 mg/kg, p < 0.05 and 0.01) in mouse brain. DISCUSSION AND CONCLUSIONS RES003 could ameliorate chronic stress induced depression-like behaviours through inhibition of PDE4 and activation of cAMP-triggered phosphorylation of cAMP response element binding protein/BDNF signalling pathway. Consequently, RES003 is a promising lead compound for the treatment of depression.
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Affiliation(s)
- Yingcong Yu
- Wenzhou People’s Hospital, Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, PR China
| | - Jinhui Wang
- Wenzhou People’s Hospital, Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, PR China
| | - Xianfeng Huang
- School of Pharmacy & School of Medicine, Changzhou University, Changzhou, PR China
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190
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Shen T, Liu Y, Dong S, Xu X, Wang X, Li Y, Zhou L. Alarin moderated myocardial hypertrophy via inhibiting cyclic adenosine monophosphate/protein kinase A signaling pathway to attenuate autophagy. Peptides 2021; 146:170669. [PMID: 34624429 DOI: 10.1016/j.peptides.2021.170669] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/02/2021] [Accepted: 09/30/2021] [Indexed: 12/23/2022]
Abstract
Alarin could alleviate myocardial infarction-induced heart failure. The present study was to explore whether alarin could alleviate myocardial hypertrophy via inhibiting cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) signaling pathway to attenuate autophagy. Myocardial hypertrophy was induced by angiotensin (Ang) II infusion in vivo in mice and by Ang II treatment of neonatal rat cardiomyocytes (NRCMs) in vitro. The Ang II-induced hypertrophy and fibrosis of the heart were alleviated after alarin administration in mice. The increased atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP) and beta-myosin heavy chain (β-MHC), and the decreased alpha-myosin heavy chain (α-MHC) induced by Ang II were reversed by alarin treatment in NRCMs. Alarin inhibited the increases of cAMP and PKA in NRCMs. Treatment with cAMP or overexpression of PKA blocked the attenuating effects of alarin on Ang II-induced hypertrophy in NRCMs. Alarin reduced the Ang II-induced increases of LC3, Beclin 1, autophagy-related gene (Atg)3 and Atg5 in NRCMs. The overexpression of cAMP and PKA reversed the alleviating effects of alarin on the increased autophagy induced by Ang II in NRCMs. These results indicated that alarin could moderate cardiac remodeling. Alarin improved myocardial hypertrophy via inhibiting the cAMP/PKA signaling pathway to attenuate autophagy.
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Affiliation(s)
- Tongtong Shen
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China
| | - Yu Liu
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China
| | - Shuangshuang Dong
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China
| | - Xiaohong Xu
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China
| | - Xinxin Wang
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China
| | - Yong Li
- Department of Cardiology, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Limin Zhou
- Department of Cardiology, Chuzhou Hospital Affiliated to Anhui Medical University, Chuzhou, China.
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191
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Zamora JC, Smith HR, Jennings EM, Chavera TS, Kotipalli V, Jay A, Husbands SM, Disney A, Berg KA, Clarke WP. Long-term antagonism and allosteric regulation of mu opioid receptors by the novel ligand, methocinnamox. Pharmacol Res Perspect 2021; 9:e00887. [PMID: 34713624 PMCID: PMC8554411 DOI: 10.1002/prp2.887] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 09/30/2021] [Indexed: 01/05/2023] Open
Abstract
Opioid overdose is a leading cause of death in the United States. The only treatment available currently is the competitive antagonist, naloxone (Narcan® ). Although naloxone is very effective and has saved many lives, as a competitive antagonist it has limitations. Due to the short half-life of naloxone, renarcotization can occur if the ingested opioid agonist remains in the body longer. Moreover, because antagonism by naloxone is surmountable, renarcotization can also occur in the presence of naloxone if a relatively larger dose of opioid agonist is taken. In such circumstances, a long-lasting, non-surmountable antagonist would offer an improvement in overdose treatment. Methocinnamox (MCAM) has been reported to have a long duration of antagonist action at mu opioid receptors in vivo. In HEK cells expressing the human mu opioid receptor, MCAM antagonism of mu agonist-inhibition of cAMP production was time-dependent, non-surmountable and non-reversible, consistent with (pseudo)-irreversible binding. In vivo, MCAM injected locally into the rat hindpaw antagonized mu agonist-mediated inhibition of thermal allodynia for up to 96 h. By contrast, antagonism by MCAM of delta or kappa agonists in HEK cells and in vivo was consistent with simple competitive antagonism. Surprisingly, MCAM also shifted the concentration-response curves of mu agonists in HEK cells in the absence of receptor reserve in a ligand-dependent manner. The shift in the [D-Ala2 ,N-MePhe4 ,Gly-ol5 ]-enkephalin (DAMGO) concentration-response curve by MCAM was insensitive to naloxone, suggesting that in addition to (pseudo)-irreversible orthosteric antagonism, MCAM acts allosterically to alter the affinity and/or intrinsic efficacy of mu agonists.
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Affiliation(s)
- Joshua C. Zamora
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
| | - Hudson R. Smith
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
| | | | | | - Varun Kotipalli
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
| | - Aleasha Jay
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
| | | | - Alex Disney
- Department of Pharmacy and PharmacologyUniversity of BathBathUnited Kingdom
| | - Kelly A. Berg
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
- Addiction ResearchTreatment & Training Center of ExcellenceUT Health San AntonioSan AntonioTexasUSA
| | - William P. Clarke
- Department of PharmacologyUT Health San AntonioSan AntonioTexasUSA
- Addiction ResearchTreatment & Training Center of ExcellenceUT Health San AntonioSan AntonioTexasUSA
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192
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Qi Y, Shi L, Duan G, Ma Y, Li P. Taurochenodeoxycholic Acid Increases cAMP Content via Specially Interacting with Bile Acid Receptor TGR5. Molecules 2021; 26:molecules26237066. [PMID: 34885648 PMCID: PMC8659238 DOI: 10.3390/molecules26237066] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 01/14/2023] Open
Abstract
Taurochenodeoxycholic acid (TCDCA) is one of the main components of bile acids (BAs). TCDCA has been reported as a signaling molecule, exerting anti-inflammatory and immunomodulatory functions. However, it is not well known whether those effects are mediated by TGR5. This study aimed to elucidate the interaction between TCDCA and TGR5. To achieve this aim, first, the TGR5 eukaryotic vector was constructed. The expression level of TGR5 in 293T cells was determined by immunofluorescence, real-time quantitative PCR (RT-PCR, qPCR), and Western blot. The luciferase assay, fluorescence microscopy, and enzyme-linked immunosorbent assay (ELISA) were recruited to check the interaction of TCDCA with TGR5. TCDCA treatment in 293T cells resulted in TGR5 internalization coupled with a significant increase in cAMP luciferase expression. Our results demonstrated that TCDCA was able to bind to the TGR5 receptor and activate it. These results provide an excellent potential therapeutic target for TCDCA research. Moreover, these findings also provide theoretical evidence for further TCDCA research.
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Affiliation(s)
- Youchao Qi
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010010, China; (Y.Q.); (L.S.)
- Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Hohhot 010010, China
- Department of Veterinary Medicine, College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Linkai Shi
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010010, China; (Y.Q.); (L.S.)
- Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Hohhot 010010, China
- Agricultural and Pastoral Bureau of Togtoh County, Togtoh 010200, China
| | - Guozhen Duan
- Academy of Agriculture and Forestry Sciences, Qinghai University, Xining 810016, China;
| | - Yonggui Ma
- Key Laboratory of Medicinal Animal and Plant Resources of Qinghai Tibetan Plateau, Qinghai Normal University, Xining 810008, China
- Academy of Plateau Science and Sustainability, Qinghai Normal University, Xining 810008, China
- Correspondence: (Y.M.); or (P.L.)
| | - Peifeng Li
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010010, China; (Y.Q.); (L.S.)
- Key Laboratory of Clinical Diagnosis and Treatment Techniques for Animal Disease, Ministry of Agriculture, Hohhot 010010, China
- Correspondence: (Y.M.); or (P.L.)
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193
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Patel VR, Salinas AM, Qi D, Gupta S, Sidote DJ, Goldschen-Ohm MP. Single-molecule imaging with cell-derived nanovesicles reveals early binding dynamics at a cyclic nucleotide-gated ion channel. Nat Commun 2021; 12:6459. [PMID: 34753946 PMCID: PMC8578382 DOI: 10.1038/s41467-021-26816-5] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 10/21/2021] [Indexed: 12/05/2022] Open
Abstract
Ligand binding to membrane proteins is critical for many biological signaling processes. However, individual binding events are rarely directly observed, and their asynchronous dynamics are occluded in ensemble-averaged measures. For membrane proteins, single-molecule approaches that resolve these dynamics are challenged by dysfunction in non-native lipid environments, lack of access to intracellular sites, and costly sample preparation. Here, we introduce an approach combining cell-derived nanovesicles, microfluidics, and single-molecule fluorescence colocalization microscopy to track individual binding events at a cyclic nucleotide-gated TAX-4 ion channel critical for sensory transduction. Our observations reveal dynamics of both nucleotide binding and a subsequent conformational change likely preceding pore opening. Kinetic modeling suggests that binding of the second ligand is either independent of the first ligand or exhibits up to ~10-fold positive binding cooperativity. This approach is broadly applicable to studies of binding dynamics for proteins with extracellular or intracellular domains in native cell membrane.
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Affiliation(s)
- Vishal R Patel
- Department of Neuroscience, The University of Texas at Austin, Austin, TX, USA
- Dell Medical School, The University of Texas at Austin, Austin, TX, USA
| | - Arturo M Salinas
- Department of Physics, The University of Texas at Austin, Austin, TX, USA
| | - Darong Qi
- Department of Neuroscience, The University of Texas at Austin, Austin, TX, USA
| | - Shipra Gupta
- Department of Neuroscience, The University of Texas at Austin, Austin, TX, USA
| | - David J Sidote
- Department of Neuroscience, The University of Texas at Austin, Austin, TX, USA
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Reinhardt F, Beneke K, Pavlidou NG, Conradi L, Reichenspurner H, Hove-Madsen L, Molina CE. Abnormal Calcium Handling in Atrial Fibrillation Is Linked to Changes in Cyclic AMP Dependent Signaling. Cells 2021; 10:cells10113042. [PMID: 34831263 PMCID: PMC8616167 DOI: 10.3390/cells10113042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/22/2021] [Accepted: 11/02/2021] [Indexed: 01/03/2023] Open
Abstract
Both, the decreased L-type Ca2+ current (ICa,L) density and increased spontaneous Ca2+ release from the sarcoplasmic reticulum (SR), have been associated with atrial fibrillation (AF). In this study, we tested the hypothesis that remodeling of 3′,5′-cyclic adenosine monophosphate (cAMP)-dependent protein kinase A (PKA) signaling is linked to these compartment-specific changes (up- or down-regulation) in Ca2+-handling. Perforated patch-clamp experiments were performed in atrial myocytes from 53 patients with AF and 104 patients in sinus rhythm (Ctl). A significantly higher frequency of transient inward currents (ITI) activated by spontaneous Ca2+ release was confirmed in myocytes from AF patients. Next, inhibition of PKA by H-89 promoted a stronger effect on the ITI frequency in these myocytes compared to myocytes from Ctl patients (7.6-fold vs. 2.5-fold reduction), while the β-agonist isoproterenol (ISO) caused a greater increase in Ctl patients (5.5-fold vs. 2.1-fold). ICa,L density was larger in myocytes from Ctl patients at baseline (p < 0.05). However, the effect of ISO on ICa,L density was only slightly stronger in AF than in Ctl myocytes (3.6-fold vs. 2.7-fold). Interestingly, a significant reduction of ICa,L and Ca2+ sparks was observed upon Ca2+/Calmodulin-dependent protein kinase II inhibition by KN-93, but this inhibition had no effect on ITI. Fluorescence resonance energy transfer (FRET) experiments showed that although AF promoted cytosolic desensitization to β-adrenergic stimulation, ISO increased cAMP to similar levels in both groups of patients in the L-type Ca2+ channel and ryanodine receptor compartments. Basal cAMP signaling also showed compartment-specific regulation by phosphodiesterases in atrial myocytes from 44 Ctl and 43 AF patients. Our results suggest that AF is associated with opposite changes in compartmentalized PKA/cAMP-dependent regulation of ICa,L (down-regulation) and ITI (up-regulation).
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Affiliation(s)
- Franziska Reinhardt
- Department of Cardiovascular Surgery, University Heart & Vascular Center Hamburg UKE, 20251 Hamburg, Germany; (F.R.); (L.C.); (H.R.)
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany; (K.B.); (N.G.P.)
| | - Kira Beneke
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany; (K.B.); (N.G.P.)
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf (UKE), 20251 Hamburg, Germany
| | - Nefeli Grammatica Pavlidou
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany; (K.B.); (N.G.P.)
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf (UKE), 20251 Hamburg, Germany
| | - Lenard Conradi
- Department of Cardiovascular Surgery, University Heart & Vascular Center Hamburg UKE, 20251 Hamburg, Germany; (F.R.); (L.C.); (H.R.)
| | - Hermann Reichenspurner
- Department of Cardiovascular Surgery, University Heart & Vascular Center Hamburg UKE, 20251 Hamburg, Germany; (F.R.); (L.C.); (H.R.)
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf (UKE), 20251 Hamburg, Germany
| | - Leif Hove-Madsen
- Biomedical Research Institute Barcelona, IIBB-CSIC and IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, Spain;
| | - Cristina E. Molina
- German Center for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20251 Hamburg, Germany; (K.B.); (N.G.P.)
- Institute of Experimental Cardiovascular Research, University Medical Center Hamburg-Eppendorf (UKE), 20251 Hamburg, Germany
- Correspondence: ; Tel.: +49-407-4105-7095
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195
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Abstract
Phosphodiesterase (PDE) 4 inhibitors prevent the metabolism of cyclic adenosine monophosphate, thereby reducing inflammation. Inhaled PDE4 inhibitors aim to restrict systemic drug exposure to enhance the potential for clinical benefits (in the lungs) versus adverse events (systemically). The orally administered PDE4 inhibitor roflumilast reduces exacerbation rates in the subgroup of chronic obstructive pulmonary disease patients with a history of exacerbations and the presence of chronic bronchitis, but can cause PDE4 related adverse effects due to systemic exposure. CHF6001 is an inhaled PDE4 inhibitor, while inhaled ensifentrine is an inhibitor of both PDE3 and PDE4; antagonism of PDE3 facilitates smooth muscle relaxation and hence bronchodilation. These inhaled PDE inhibitors have both reported positive findings from early phase clinical trials, and have been well tolerated. Longer term trials are needed to firmly establish the clinical benefits of these drugs.
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Affiliation(s)
- Dave Singh
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and Manchester University NHS Foundation Trust, Manchester, UK.
- Medicines Evaluation Unit, University of Manchester, Manchester University NHS Foundation Hospital Trust, The Langley Building, Southmoor Road, Manchester, M23 9QZ, UK.
| | - Simon Lea
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and Manchester University NHS Foundation Trust, Manchester, UK
| | - Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester and Manchester University NHS Foundation Trust, Manchester, UK
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196
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Mora FAA, Musheshe N, Arroyave Ospina JC, Geng Y, Soto JM, Rodrigo JA, Alieva T, Buist-Homan M, Lezoualc'h F, Cheng X, Schmidt M, Moshage H. Metformin protects against diclofenac-induced toxicity in primary rat hepatocytes by preserving mitochondrial integrity via a pathway involving EPAC. Biomed Pharmacother 2021; 143:112072. [PMID: 34464747 DOI: 10.1016/j.biopha.2021.112072] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/23/2021] [Accepted: 08/17/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND AND PURPOSE It has been shown that the antidiabetic drug metformin protects hepatocytes against toxicity by various stressors. Chronic or excessive consumption of diclofenac (DF) - a pain-relieving drug, leads to drug-induced liver injury via a mechanism involving mitochondrial damage and ultimately apoptotic death of hepatocytes. However, whether metformin protects against DF-induced toxicity is unknown. Recently, it was also shown that cAMP elevation is protective against DF-induced apoptotic death in hepatocytes, a protective effect primarily involving the downstream cAMP effector EPAC and preservation of mitochondrial function. This study therefore aimed at investigating whether metformin protects against DF-induced toxicity via cAMP-EPACs. EXPERIMENTAL APPROACH Primary rat hepatocytes were exposed to 400 µmol/L DF. CE3F4 or ESI-O5 were used as EPAC-1 or 2 inhibitors respectively. Apoptosis was measured by caspase-3 activity and necrosis by Sytox green staining. Seahorse X96 assay was used to determine mitochondrial function. Mitochondrial reactive oxygen species (ROS) production was measured using MitoSox, mitochondrial MnSOD expression was determined by immunostaining and mitochondrial morphology (fusion and fission ratio) by 3D refractive index imaging. KEY RESULTS Metformin (1 mmol/L) was protective against DF-induced apoptosis in hepatocytes. This protective effect was EPAC-dependent (mainly EPAC-2). Metformin restored mitochondrial morphology in an EPAC-independent manner. DF-induced mitochondrial dysfunction which was demonstrated by decreased oxygen consumption rate, an increased ROS production and a reduced MnSOD level, were all reversed by metformin in an EPAC-dependent manner. CONCLUSION AND IMPLICATIONS Metformin protects hepatocytes against DF-induced toxicity via cAMP-dependent EPAC-2.
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Affiliation(s)
- Fabio Alejandro Aguilar Mora
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Nshunge Musheshe
- Deptartment Molecular Pharmacology, Groningen Research Institute of Pharmacy, Groningen Research Institute for Asthma and COPD, GRIAC, University Medical Center Groningen University of Groningen, Groningen, The Netherlands.
| | - Johanna C Arroyave Ospina
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Yana Geng
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Juan M Soto
- Department of Optics and Faculty of Physical Sciences, Complutense University of Madrid, Spain.
| | - José A Rodrigo
- Department of Optics and Faculty of Physical Sciences, Complutense University of Madrid, Spain.
| | - Tatiana Alieva
- Department of Optics and Faculty of Physical Sciences, Complutense University of Madrid, Spain.
| | - Manon Buist-Homan
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
| | - Frank Lezoualc'h
- Inserm UMR-1048, Institut des Maladies Metaboliques et Cardiovasculaires, Univ Toulouse Paul Sabatier, Toulouse, France.
| | - Xiaodong Cheng
- Department of Integrative Biology & Pharmacology, Texas Therapeutics Institute, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Martina Schmidt
- Deptartment Molecular Pharmacology, Groningen Research Institute of Pharmacy, Groningen Research Institute for Asthma and COPD, GRIAC, University Medical Center Groningen University of Groningen, Groningen, The Netherlands.
| | - Han Moshage
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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197
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Liu Q, Tian R, Yu P, Shu M. miR-221/222 suppression induced by activation of the cAMP/PKA/CREB1 pathway is required for cAMP-induced bidirectional differentiation of glioma cells. FEBS Lett 2021; 595:2829-2843. [PMID: 34687039 DOI: 10.1002/1873-3468.14208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/06/2021] [Revised: 08/30/2021] [Accepted: 08/30/2021] [Indexed: 12/29/2022]
Abstract
Factors that increase cAMP levels can induce lineage-specific differentiation of glioma cells into astrocyte-like cells. However, the differentiation pattern and underlying mechanisms remain unclear. Here, we find that cAMP/protein kinase A (PKA)/cAMP responsive element binding protein 1 (CREB1)-induced miR-221/222 suppression contributes to the neuron-like differentiation of gliomas. cAMP agonists selectively induced neuron- and astrocyte-like but not oligodendrocyte-like differentiation of C6 glioma cells. PKA inhibitors and CREB1 knockout blocked neuron-like differentiation of glioma cells. cAMP inhibited miR-221/222 in a PKA/CREB1-dependent manner. Importantly, both in vitro and in vivo assays demonstrated that transcriptional suppression of miR-221/222 is required for neuronal differentiation of glioma cells. Our findings suggest that increasing cAMP levels can induce bidirectional differentiation of glioma cells. Furthermore, the miR-221/222 cluster acts as an epigenetic brake during glioma differentiation.
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Affiliation(s)
- Qian Liu
- Department of Pharmacology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ruotong Tian
- Department of Pharmacology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Panpan Yu
- Department of Pharmacology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Minfeng Shu
- Department of Pharmacology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
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198
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Sabbir MG, Inoue A, Taylor CG, Zahradka P. Loss of β-Arrestins or six Gα proteins in HEK293 cells caused Warburg effect and prevented progesterone-induced rapid proteasomal degradation of progesterone receptor membrane component 1. J Steroid Biochem Mol Biol 2021; 214:105995. [PMID: 34506922 DOI: 10.1016/j.jsbmb.2021.105995] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
Hormonal dysregulation plays a significant role in the metabolic switching during malignant transformation. Progesterone Receptor Membrane Component 1 (PGRMC1) is a single-pass transmembrane receptor activated by the binding of progesterone (P4), a sex hormone. In a previous study, P4 treatment caused rapid (within 30 min) induction of aerobic glycolysis in transformed HEK293 cells, a hallmark malignant phenotype known as the Warburg effect. This metabolic reprogramming was associated with the proteasomal degradation of a 70 kilodalton (kDa) PGRMC1. PGRMC1 interacts with a variety of proteins, including G protein-coupled receptors (GPCRs) and P4-PGRMC1 signaling modulates cyclic adenosine monophosphate (cAMP) production. Therefore, we hypothesized that the P4-induced Warburg effect and proteasomal degradation of PGRMC1 involve G proteins and β-Arrestins (ARRBs). In the present study, we investigated P4-induced aerobic glycolysis, proteasomal degradation of p70 PGRMC1, as well as abundance and subcellular translocation of PGRMC1 along with two key glycolytic enzymes Hexokinase 1 (HK1) and Glyceraldehyde-3-Phosphate Dehydrogenase (GAPDH) in six Gα subunit (Gsix) proteins or ARRB1/2-deficient HEK293 cells. Loss of ARRB1/2 or Gsix proteins inhibited P4-induced p70 PGRMC1 degradation but failed to prevent the P4-induced Warburg effect. Also, deficiency of ARRB1/2 or Gsix proteins differentially affected the basal as well as P4-induced abundance and subcellular translocation of PGRMC1, HK1, and GAPDH proteins. Overall, the findings indicate that P4-PGRMC1-mediated metabolic reprogramming in HEK293 cells depends on β-Arrestins and Gα proteins suggesting the involvement of an underlying GPCR signal transduction pathway.
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Affiliation(s)
- Mohammad Golam Sabbir
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada; Alzo Biosciences Inc., San Diego, USA.
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Carla G Taylor
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
| | - Peter Zahradka
- Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Albrechtsen Research Centre, Winnipeg, MB, R2H 2A6, Canada; Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada; Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
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199
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Holubova J, Juhasz A, Masin J, Stanek O, Jurnecka D, Osickova A, Sebo P, Osicka R. Selective Enhancement of the Cell-Permeabilizing Activity of Adenylate Cyclase Toxin Does Not Increase Virulence of Bordetella pertussis. Int J Mol Sci 2021; 22:ijms222111655. [PMID: 34769101 PMCID: PMC8583748 DOI: 10.3390/ijms222111655] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/18/2021] [Accepted: 10/26/2021] [Indexed: 01/15/2023] Open
Abstract
The whooping cough agent, Bordetella pertussis, secretes an adenylate cyclase toxin–hemolysin (CyaA, ACT, or AC-Hly) that catalyzes the conversion of intracellular ATP to cAMP and through its signaling annihilates the bactericidal activities of host sentinel phagocytes. In parallel, CyaA permeabilizes host cells by the formation of cation-selective membrane pores that account for the hemolytic activity of CyaA. The pore-forming activity contributes to the overall cytotoxic effect of CyaA in vitro, and it has previously been proposed to synergize with the cAMP-elevating activity in conferring full virulence on B. pertussis in the mouse model of pneumonic infection. CyaA primarily targets myeloid phagocytes through binding of their complement receptor 3 (CR3, integrin αMβ2, or CD11b/CD18). However, with a reduced efficacy, the toxin can promiscuously penetrate and permeabilize the cell membrane of a variety of non-myeloid cells that lack CR3 on the cell surface, including airway epithelial cells or erythrocytes, and detectably intoxicates them by cAMP. Here, we used CyaA variants with strongly and selectively enhanced or reduced pore-forming activity that, at the same time, exhibited a full capacity to elevate cAMP concentrations in both CR3-expressing and CR3-non-expressing target cells. Using B. pertussis mutants secreting such CyaA variants, we show that a selective enhancement of the cell-permeabilizing activity of CyaA does not increase the overall virulence and lethality of pneumonic B. pertussis infection of mice any further. In turn, a reduction of the cell-permeabilizing activity of CyaA did not reduce B. pertussis virulence any importantly. These results suggest that the phagocyte-paralyzing cAMP-elevating capacity of CyaA prevails over the cell-permeabilizing activity of CyaA that appears to play an auxiliary role in the biological activity of the CyaA toxin in the course of B. pertussis infections in vivo.
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Affiliation(s)
- Jana Holubova
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - Attila Juhasz
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
- Czech Centre for Phenogenomics, Institute of Molecular Genetics of the Czech Academy of Sciences, Prumyslova 595, 252 50 Vestec, Czech Republic
| | - Jiri Masin
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - Ondrej Stanek
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - David Jurnecka
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - Adriana Osickova
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - Peter Sebo
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
| | - Radim Osicka
- Institute of Microbiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.H.); (A.J.); (J.M.); (O.S.); (D.J.); (A.O.); (P.S.)
- Correspondence: ; Tel.: +420-241-062-770
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Zhang S, Wang H, Melick CH, Jeong MH, Curukovic A, Tiwary S, Lama-Sherpa TD, Meng D, Servage KA, James NG, Jewell JL. AKAP13 couples GPCR signaling to mTORC1 inhibition. PLoS Genet 2021; 17:e1009832. [PMID: 34673774 PMCID: PMC8570464 DOI: 10.1371/journal.pgen.1009832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 11/05/2021] [Accepted: 09/21/2021] [Indexed: 01/14/2023] Open
Abstract
The mammalian target of rapamycin complex 1 (mTORC1) senses multiple stimuli to regulate anabolic and catabolic processes. mTORC1 is typically hyperactivated in multiple human diseases such as cancer and type 2 diabetes. Extensive research has focused on signaling pathways that can activate mTORC1 such as growth factors and amino acids. However, less is known about signaling cues that can directly inhibit mTORC1 activity. Here, we identify A-kinase anchoring protein 13 (AKAP13) as an mTORC1 binding protein, and a crucial regulator of mTORC1 inhibition by G-protein coupled receptor (GPCR) signaling. GPCRs paired to Gαs proteins increase cyclic adenosine 3’5’ monophosphate (cAMP) to activate protein kinase A (PKA). Mechanistically, AKAP13 acts as a scaffold for PKA and mTORC1, where PKA inhibits mTORC1 through the phosphorylation of Raptor on Ser 791. Importantly, AKAP13 mediates mTORC1-induced cell proliferation, cell size, and colony formation. AKAP13 expression correlates with mTORC1 activation and overall lung adenocarcinoma patient survival, as well as lung cancer tumor growth in vivo. Our study identifies AKAP13 as an important player in mTORC1 inhibition by GPCRs, and targeting this pathway may be beneficial for human diseases with hyperactivated mTORC1. The mammalian target of rapamycin complex 1 (mTORC1) can sense multiple upstream stimuli to regulate cell growth and metabolism. Increased mTORC1 activation results in many human diseases such as cancer. Small molecules like rapamycin that target and inhibit mTORC1, are available in the clinic with limited success. Thus, decoding the mechanisms involved in mTORC1 regulation is crucial. Most of the research has focused on stimuli that activate mTORC1. Less is known about signaling pathways that can directly inhibit mTORC1 activity. G-protein coupled receptors (GPCRs) coupled to Gαs proteins signal to and potently inhibit mTORC1. In this study, we have identified AKAP13 to play a crucial role in mTORC1 inhibition by GPCR signaling. Importantly, GPCRs are the largest family of drug targets with many approved FDA compounds. Targeting this signaling pathway may be beneficial for human diseases with hyperactivated mTORC1.
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Affiliation(s)
- Shihai Zhang
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Provincial Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, People’s Republic of China
| | - Huanyu Wang
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Chase H. Melick
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Mi-Hyeon Jeong
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Adna Curukovic
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Shweta Tiwary
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Tshering D. Lama-Sherpa
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Delong Meng
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Kelly A. Servage
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Nicholas G. James
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, United States of America
| | - Jenna L. Jewell
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail:
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