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Chatterjee S, Sil PC. ROS-Influenced Regulatory Cross-Talk With Wnt Signaling Pathway During Perinatal Development. Front Mol Biosci 2022; 9:889719. [PMID: 35517861 PMCID: PMC9061994 DOI: 10.3389/fmolb.2022.889719] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022] Open
Abstract
Over a century ago, it was found that a rapid burst of oxygen is needed and produced by the sea urchin oocyte to activate fertilization and block polyspermy. Since then, scientific research has taken strides to establish that Reactive Oxygen Species (ROS), besides being toxic effectors of cellular damage and death, also act as molecular messengers in important developmental signaling cascades, thereby modulating them. Wnt signaling pathway is one such developmental pathway, which has significant effects on growth, proliferation, and differentiation of cells at the earliest embryonic stages of an organism, apart from being significant role-players in the instances of cellular transformation and cancer when this tightly-regulated system encounters aberrations. In this review, we discuss more about the Wnt and ROS signaling pathways, how they function, what roles they play overall in animals, and mostly about how these two major signaling systems cross paths and interplay in mediating major cellular signals and executing the predestined changes during the perinatal condition, in a systematic manner.
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Affiliation(s)
| | - Parames C Sil
- Division of Molecular Medicine, Bose Institute, Kolkata, India
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2
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Islam MMT, Tarnowski D, Zhang M, Trum M, Lebek S, Mustroph J, Daniel H, Moellencamp J, Pabel S, Sossalla S, El‐Armouche A, Nikolaev VO, Shah AM, Eaton P, Maier LS, Sag CM, Wagner S. Enhanced Heart Failure in Redox-Dead Cys17Ser PKARIα Knock-In Mice. J Am Heart Assoc 2021; 10:e021985. [PMID: 34583520 PMCID: PMC8649132 DOI: 10.1161/jaha.121.021985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Background PKARIα (protein kinase A type I-α regulatory subunit) is redox-active independent of its physiologic agonist cAMP. However, it is unknown whether this alternative mechanism of PKARIα activation may be of relevance to cardiac excitation-contraction coupling. Methods and Results We used a redox-dead transgenic mouse model with homozygous knock-in replacement of redox-sensitive cysteine 17 with serine within the regulatory subunits of PKARIα (KI). Reactive oxygen species were acutely evoked by exposure of isolated cardiac myocytes to AngII (angiotensin II, 1 µmol/L). The long-term relevance of oxidized PKARIα was investigated in KI mice and their wild-type (WT) littermates following transverse aortic constriction (TAC). AngII increased reactive oxygen species in both groups but with RIα dimer formation in WT only. AngII induced translocation of PKARI to the cell membrane and resulted in protein kinase A-dependent stimulation of ICa (L-type Ca current) in WT with no effect in KI myocytes. Consequently, Ca transients were reduced in KI myocytes as compared with WT cells following acute AngII exposure. Transverse aortic constriction-related reactive oxygen species formation resulted in RIα oxidation in WT but not in KI mice. Within 6 weeks after TAC, KI mice showed an enhanced deterioration of contractile function and impaired survival compared with WT. In accordance, compared with WT, ventricular myocytes from failing KI mice displayed significantly reduced Ca transient amplitudes and lack of ICa stimulation. Conversely, direct pharmacological stimulation of ICa using Bay K8644 rescued Ca transients in AngII-treated KI myocytes and contractile function in failing KI mice in vivo. Conclusions Oxidative activation of PKARIα with subsequent stimulation of ICa preserves cardiac function in the setting of acute and chronic oxidative stress.
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Affiliation(s)
- M. M. Towhidul Islam
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
- Department of Biochemistry and Molecular BiologyUniversity of DhakaBangladesh
| | - Daniel Tarnowski
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Min Zhang
- School of Cardiovascular Medicine & SciencesKings College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Maximilian Trum
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Simon Lebek
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Julian Mustroph
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Henriette Daniel
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Johanna Moellencamp
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Steffen Pabel
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Samuel Sossalla
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Ali El‐Armouche
- Department of Pharmacology and ToxicologyTechnical University DresdenDresdenGermany
| | - Viacheslav O. Nikolaev
- Institute of Experimental Cardiovascular ResearchUniversity Medical Center Hamburg‐EppendorfEppendorfGermany
| | - Ajay M. Shah
- School of Cardiovascular Medicine & SciencesKings College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Philip Eaton
- The William Harvey Research InstituteBarts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUnited Kingdom
| | - Lars S. Maier
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Can Martin Sag
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
| | - Stefan Wagner
- Department of Internal Medicine IIUniversity Medical Center RegensburgRegensburgGermany
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3
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Trum M, Islam MMT, Lebek S, Baier M, Hegner P, Eaton P, Maier LS, Wagner S. Inhibition of cardiac potassium currents by oxidation-activated protein kinase A contributes to early afterdepolarizations in the heart. Am J Physiol Heart Circ Physiol 2020; 319:H1347-H1357. [PMID: 33035439 PMCID: PMC7792712 DOI: 10.1152/ajpheart.00182.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) have been shown to prolong cardiac action potential duration resulting in afterdepolarizations, the cellular basis of triggered arrhythmias. As previously shown, protein kinase A type I (PKA I) is readily activated by oxidation of its regulatory subunits. However, the relevance of this mechanism of activation for cardiac pathophysiology is still elusive. In this study, we investigated the effects of oxidation-activated PKA I on cardiac electrophysiology. Ventricular cardiomyocytes were isolated from redox-dead PKA-RI Cys17Ser knock-in (KI) and wild-type (WT) mice and exposed to H2O2 (200 µmol/L) or vehicle (Veh) solution. In WT myocytes, exposure to H2O2 significantly increased oxidation of the regulatory subunit I (RI) and thus its dimerization (threefold increase in PKA RI dimer). Whole cell current clamp and voltage clamp were used to measure cardiac action potentials (APs), transient outward potassium current (Ito) and inward rectifying potassium current (IK1), respectively. In WT myocytes, H2O2 exposure significantly prolonged AP duration due to significantly decreased Ito and IK1 resulting in frequent early afterdepolarizations (EADs). Preincubation with the PKA-specific inhibitor Rp-8-Br-cAMPS (10 µmol/L) completely abolished the H2O2-dependent decrease in Ito and IK1 in WT myocytes. Intriguingly, H2O2 exposure did not prolong AP duration, nor did it decrease Ito, and only slightly enhanced EAD frequency in KI myocytes. Treatment of WT and KI cardiomyocytes with the late INa inhibitor TTX (1 µmol/L) completely abolished EAD formation. Our results suggest that redox-activated PKA may be important for H2O2-dependent arrhythmias and could be important for the development of specific antiarrhythmic drugs.NEW & NOTEWORTHY Oxidation-activated PKA type I inhibits transient outward potassium current (Ito) and inward rectifying potassium current (IK1) and contributes to ROS-induced APD prolongation as well as generation of early afterdepolarizations in murine ventricular cardiomyocytes.
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Affiliation(s)
- M. Trum
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - M. M. T. Islam
- 2Department of Biochemistry and Molecular Biology, University of Dhaka, Bangladesh
- 3Department of Cardiology and Pneumology, University Medical Center Göttingen, Göttingen, Germany
| | - S. Lebek
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - M. Baier
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - P. Hegner
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - P. Eaton
- 4The William Harvey Research Institute, Charterhouse Square, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - L. S. Maier
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
| | - S. Wagner
- 1Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
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Wang YH, Wang DR, Guo YC, Liu JY, Pan J. The application of bone marrow mesenchymal stem cells and biomaterials in skeletal muscle regeneration. Regen Ther 2020; 15:285-294. [PMID: 33426231 PMCID: PMC7770413 DOI: 10.1016/j.reth.2020.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/07/2020] [Accepted: 11/16/2020] [Indexed: 02/08/2023] Open
Abstract
Skeletal muscle injuries have bothered doctors and caused great burdens to the public medical insurance system for a long time. Once injured, skeletal muscles usually go through the processes of inflammation, repairing and remodeling. If repairing and remodeling stages are out of balance, scars will be formed to replace injured skeletal muscles. At present, clinicians usually use conventional methods to restore the injured skeletal muscles, such as flap transplantation. However, flap transplantation sometimes needs to sacrifice healthy autologous tissues and will bring extra harm to patients. In recent years, stem cells-based tissue engineering provides us new treatment ideas for skeletal muscle injuries. Stem cells are cells with multiple differentiation potential and have ability to differentiate into adult cells under special condition. Skeletal muscle tissues also have stem cells, called satellite cells, but they are in small amount and new muscle fibers that derived from them may not be enough to replace injured fibers. Bone marrow mesenchymal stem cells (BM-MSCs) could promote musculoskeletal tissue regeneration and activate the myogenic differentiation of satellite cells. Biomaterial is another important factor to promote tissue regeneration and greatly enhance physiological activities of stem cells in vivo. The combined use of stem cells and biomaterials will gradually become a mainstream to restore injured skeletal muscles in the future. This review article mainly focuses on the review of research about the application of BM-MSCs and several major biomaterials in skeletal muscle regeneration over the past decades.
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Key Words
- 3D-ECM, three dimensional extracellular matrix
- ASCs, adipose stem cells
- BDNF, brain derived neurotrophic factor
- BM-MSCs
- BM-MSCs, bone marrow mesenchymal stem cells
- Biomaterial
- CREB, cAMP- response element binding protein
- DPSCs, dental pulp stem cells
- Differentiation
- ECM, extracellular matrix
- ECs, endothelial cells
- EGF, epidermal growth factor
- FGF, fibroblast growth factor
- FGF-2, fibroblast growth factor-2
- GCSF, granulocyte colony-stimulating factor
- GDNF, glial derived neurotrophic factor
- GPT, gelatin-poly(ethylene glycol)- tyramine
- HGF, hepatocyte growth factor
- IGF-1, insulin-like growth factor-1
- IL, interleukin
- LIF, leukemia inhibitory factor
- MRF, myogenic muscle factor
- NSAIDs, non-steroidal drugs
- PDGF-BB, platelet derived growth factor-BB
- PGE2, prostaglandin E2
- PRP, platelet rich plasma
- S1P, sphingosine 1-phosphate
- SDF-1, stromal cell derived factor-1
- Skeletal muscle injury
- TGF-β, transforming growth factor-β
- Tissue regeneration
- TrkB, tyrosine kinaseB
- VEGF, vascular endothelial growth factor
- VML, volumetric muscle loss
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Affiliation(s)
- Yu-Hao Wang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, PR China
| | - Dian-Ri Wang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, PR China
| | - Yu-Chen Guo
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Ji-Yuan Liu
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China
| | - Jian Pan
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Clinical Research Center for Oral Diseases & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, PR China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, PR China
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Echeverry S, Grismaldo A, Sánchez C, Sierra C, Henao JC, Granados ST, Sutachán JJ, Torres YP. Activation of BK Channel Contributes to PL-Induced Mesenchymal Stem Cell Migration. Front Physiol 2020; 11:210. [PMID: 32265729 PMCID: PMC7105713 DOI: 10.3389/fphys.2020.00210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/24/2020] [Indexed: 01/16/2023] Open
Abstract
Due to their capacity to proliferate, migrate, and differentiate, mesenchymal stem cells (MSCs) are considered to be good candidates for regenerative medicine applications. The mechanisms underlying proliferation and differentiation of MSCs have been studied. However, much less is known about the mechanisms regulating the migration of MSCs. Platelet lysate (PL), a supplement used to promote cell expansion, has been shown to promote MSCs migration; however, the underlying mechanism are unknown. Here, by using adipose-derived rat MSCs (rMSCs) and the scratch assay in the absence and presence of various BK channels modulators, we evaluated the role of BK channels in mediating the PL-stimulated migration of rMSCs. We found that 5% PL increased rMSCs migration, and this effect was blocked by the addition of the BK channel selective antagonist Iberiotoxin (IBTX). In the absence of PL, the BK channel agonist NS1619, stimulated rMSCs migration to similar level as 5% PL. Addition of both NS1619 and 5% PL resulted in an increase in rMSCs migration, that was higher than when either one was added individually. From whole-cell recordings, it was found that the addition of 5% PL increased the magnitude of BK current density. By using Western blot and flow cytometry, it was found that PL did not affect the expression of BK channels. Together, our results indicate that as shown in other cell types, activation of BK channels by themselves also promote rMSC migration, and show that activation of BK channels contribute to the observed PL-induced increase in migration of rMSC.
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6
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Wang C, Liu Y, He D. Diverse effects of platelet-derived growth factor-BB on cell signaling pathways. Cytokine 2019; 113:13-20. [DOI: 10.1016/j.cyto.2018.10.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 12/12/2022]
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7
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Zhou JM, Wang HM, Lv YZ, Wang ZZ, Xiao W. Anti-atherosclerotic effect of Longxuetongluo Capsule in high cholesterol diet induced atherosclerosis model rats. Biomed Pharmacother 2017; 97:793-801. [PMID: 29112932 DOI: 10.1016/j.biopha.2017.08.141] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/21/2017] [Accepted: 08/29/2017] [Indexed: 02/06/2023] Open
Abstract
Chinese dragon's blood, the red resin of Dracaena cochinchinensis, one of the famous traditional medicines, has been used to promote blood circulation, disperse blood stasis, stop bleeding, relieve pain and muscle regeneration for thousands of years. The aims of this study were to evaluate the anti-atherosclerotic effect of Longxuetongluo Capsule (LTC), which made by total phenolic compounds of Chinese dragon's blood, in high cholesterol diet (HCD)-induced atherosclerosis model rats and explore the possible mechanism. Atherosclerosis rats were induced by administration of HCD for 4 weeks and treated with atorvastatin (2.08mg/kg/d) or various concentrations of LTC (81, 162 and 324mg/kg/d) for additional 4 weeks. Body weight (BW), lipid profiles, serum VCAM-1, ICAM-1, MCP-1, AST and ALT were then tested. Histopathological evaluation of aorta and liver were determined by hematoxylin and eosin staining. NF-κB expression in aorta was detected by Immunohistochemical staining. Meanwhile, the inhibition effects of LTC on the migration and proliferation and Intracellular Ca2+ levels induced by PDGF-BB were also evaluated in rat aortic smooth muscle cells (A7r5). The results demonstrated that LTC produced a significant anti-atherosclerotic activity in terms of reduction in serum lipids and lipoprotein profile, VCAM-1, ICAM-1, MCP-1, AST, ALT levels, and increase in HDL-c level compared to atherosclerotic group. Rats treated with LTC not only attenuated the pathological region and atheroma formation, but also reduced hepatic steatosis and inflammatory cell infiltration. Immunohistochemical analysis showed LTC reduced NF-κB expression in aorta. Furthermore, PDGF-BB induced proliferation and migration of A7r5 and intracellular calcium rise were also abrogated by LTC. The results indicate that LTC prevents atherosclerosis and fatty liver by controlling lipid metabolism, the underlying mechanism may attributed to its anti-inflammation activity, regulation of the vascular smooth muscle function and intracellular calcium signaling.
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Affiliation(s)
- J M Zhou
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, China
| | - H M Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, China
| | - Y Z Lv
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, China
| | - Z Z Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, China
| | - W Xiao
- Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang, China.
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Kesavan R, Chandel S, Upadhyay S, Bendre R, Ganugula R, Potunuru UR, Giri H, Sahu G, Kumar PU, Reddy GB, Joksic G, Bera AK, Dixit M. Gentiana lutea exerts anti-atherosclerotic effects by preventing endothelial inflammation and smooth muscle cell migration. Nutr Metab Cardiovasc Dis 2016; 26:293-301. [PMID: 26868432 DOI: 10.1016/j.numecd.2015.12.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 11/16/2015] [Accepted: 12/23/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Studies suggest that Gentiana lutea (GL), and its component isovitexin, may exhibit anti-atherosclerotic properties. In this study we sought to investigate the protective mechanism of GL aqueous root extract and isovitexin on endothelial inflammation, smooth muscle cell migation, and on the onset and progression of atherosclerosis in streptozotocin (STZ)-induced diabetic rats. METHODS AND RESULTS Our results show that both GL extract and isovitexin, block leukocyte adhesion and generation of reactive oxygen species in human umbilical vein endothelial cells (HUVECs) and rat aortic smooth muscle cells (RASMCs), following TNF-alpha and platelet derived growth factor-BB (PDGF-BB) challenges respectively. Both the extract and isovitexin blocked TNF-α induced expression of ICAM-1 and VCAM-1 in HUVECs. PDGF-BB induced migration of RASMCs and phospholipase C-γ activation, were also abrogated by GL extract and isovitexin. Fura-2 based ratiometric measurements demonstrated that, both the extact, and isovitexin, inhibit PDGF-BB mediated intracellular calcium rise in RASMCs. Supplementation of regular diet with 2% GL root powder for STZ rats, reduced total cholesterol in blood. Oil Red O staining demonstrated decreased lipid accumulation in aortic wall of diabetic animals upon treatment with GL. Medial thickness and deposition of collagen in the aortic segment of diabetic rats were also reduced upon supplementation. Immunohistochemistry demonstrated reduced expression of vascular cell adhesion molecule-1 (VCAM-1), inducible nitric oxide synthase (iNOS), and vascular endothelial cadherin (VE-cadherin) in aortic segments of diabetic rats following GL treatment. CONCLUSIONS Thus, our results support that GL root extract/powder and isovitexin exhibit anti-atherosclerotic activities.
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Affiliation(s)
- R Kesavan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - S Chandel
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - S Upadhyay
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - R Bendre
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - R Ganugula
- National Institute of Nutrition, Hyderabad, India
| | - U R Potunuru
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - H Giri
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - G Sahu
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - P Uday Kumar
- National Institute of Nutrition, Hyderabad, India
| | | | - G Joksic
- Department of Physical Chemistry, VINCA Institute of Nuclear Sciences, Belgrade, Serbia
| | - A K Bera
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India
| | - Madhulika Dixit
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences and Bioengineering Building, Indian Institute of Technology Madras, Chennai 600036, India.
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Li T, Li Z, Nan F, Dong J, Deng Y, Yu Q, Zhang T. Construction of a novel inducing system with multi-layered alginate microcapsules to regulate differentiation of neural precursor cells from bone mesenchymal stem cells. Med Hypotheses 2015; 85:910-3. [PMID: 26386487 DOI: 10.1016/j.mehy.2015.09.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 09/09/2015] [Indexed: 01/08/2023]
Abstract
Neural precursor cells (NPCs) are a promising cell source for the treatment of nervous system diseases; however, they are limited in their applications due to source-related ethical considerations or legislations. Therefore, a novel approach is necessary to obtain sufficient NPCs. Recently, the usage of bone marrow-derived mesenchymal stem cells (BMSCs) differentiated into neural cells has become a potential method to obtain NPCs. Moreover, growth factors (GFs) are emerging as inducers to evoke the differentiation of BMSCs into NPCs. For example, GFs may activate various signaling pathways related to neural differentiation, such as phosphatidylinositol 3 kinase/protein kinase B, cyclic adenosine monophosphate/protein kinase A, and Janus kinase/signal transducer activator of transcription. However, the utilization of growth factors still has some limitations such as high costs and low rates of neural differentiation. Neuroblastoma cells have been characterized as a potential pool for growth factors. Additionally, basic fibroblast growth factor (bFGF), a type of growth factor, has been demonstrated to be able to increase the differentiation and survival rate of NPCs. For better use of neuroblastoma cells and bFGF, we established a novel system involving multi-layered alginate-polylysine-alginate (APA) microcapsules to encapsulate neuroblastoma cells and bFGF, which may not only provide sufficient growth factors in a sustained manner but also avoid the carcinogenicity caused by neuroblastoma cells. Above all, we hypothesized that neuroblastoma cells and bFGF encapsulated in multilayered alginate microcapsules may efficiently induce the differentiation of BMSCs into NPCs.
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Affiliation(s)
- Tao Li
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
| | - Zhengwei Li
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
| | - Feng Nan
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China.
| | - Jianli Dong
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
| | - Yushuang Deng
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
| | - Qing Yu
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
| | - Teng Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, District Shahekou, Dalian 116023, PR China
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Pretreatments with injured microenvironmental signals altered the characteristics of human umbilical cord mesenchymal stem cells. Biotechnol Lett 2015; 38:157-65. [DOI: 10.1007/s10529-015-1946-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 08/26/2015] [Indexed: 12/11/2022]
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Cordyceps sinensis polysaccharide inhibits PDGF-BB-induced inflammation and ROS production in human mesangial cells. Carbohydr Polym 2015; 125:135-45. [DOI: 10.1016/j.carbpol.2015.02.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/10/2015] [Accepted: 02/12/2015] [Indexed: 12/19/2022]
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12
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Beck KF, Euler J, Eisel F, Beck M, Köhler Y, Sha LK, von Knethen A, Longen S, Pfeilschifter J. Cytokines induce protein kinase A-mediated signalling by a redox-dependent mechanism in rat renal mesangial cells. Biochem Pharmacol 2014; 93:362-9. [PMID: 25437456 DOI: 10.1016/j.bcp.2014.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/20/2014] [Accepted: 11/21/2014] [Indexed: 01/10/2023]
Abstract
Glomerular mesangial cells are smooth muscle cell-like pericytes and are regarded as key players in kidney diseases. In an inflammatory setting, these cells produce high amounts of inflammatory cytokines, chemokines and redox mediators such as reactive oxygen species or nitric oxide (NO). The temporal production of ROS, NO and other redox mediators markedly contributes to the final outcome of inflammatory diseases. Recently, we reported that platelet-derived growth factor forced mesangial cells to activate the regulatory subunit of protein kinase A (PKA RI) by a redox-dependent mechanism but independent from changes in cyclic AMP. This prompted us to further analyze the dimerization of PKA RI and activation of PKA-driven signalling in an inflammatory context. Stimulation of rat mesangial cells with interleukin-1β and tumour necrosis factor-α [2 nM] induced the formation of PKA RI heterodimers in a time-dependent manner. PKA RI dimerization was accompanied with the formation of ROS, NO and peroxynitrite as well as a depletion of reduced glutathione. Furthermore, dimerization of PKA RI was paralleled by enhanced activity of PKA as shown by the phosphorylation of vasodilator-stimulated phosphoprotein (VASP) at serine 157 that was independent of the formation of cyclic AMP. Remarkably, exogenously administered peroxynitrite potently induced dimerization of PKA RI, whereas pharmacologic inhibition of inducible NO synthase (iNOS) and scavenging of peroxynitrite reduced PKA RI dimerization and VASP phosphorylation to control levels thus clearly indicating a causal role for endogenously formed peroxynitrite on PKA signalling. Consequently, the treatment of inflammatory diseases with anti-oxidants or NOS inhibitors may alter PKA activity.
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Affiliation(s)
- Karl-Friedrich Beck
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany.
| | - Johannes Euler
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Florian Eisel
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Martina Beck
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Yvette Köhler
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Lisa Katharina Sha
- Institut für Biochemie, Pathobiochemie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Andreas von Knethen
- Institut für Biochemie, Pathobiochemie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Sebastian Longen
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
| | - Josef Pfeilschifter
- Pharmazentrum Frankfurt/ZAFES, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
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13
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Li YC, Ding XS, Li HM, Zhang Y, Bao J. Role of G protein-coupled estrogen receptor 1 in modulating transforming growth factor-β stimulated mesangial cell extracellular matrix synthesis and migration. Mol Cell Endocrinol 2014; 391:50-9. [PMID: 24793639 DOI: 10.1016/j.mce.2014.04.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 04/18/2014] [Accepted: 04/23/2014] [Indexed: 12/25/2022]
Abstract
Estrogen has been demonstrated to exert beneficial effects on kidney; however, the role of G protein-coupled estrogen receptor 1 (GPER) is still uncertain. In the present study, we investigated the effect of 17β-estradiol and GPER agonist Fulvestrant on extracellular matrix production under transforming growth factor-β1 (TGF-β1) stimulation in human and rat mesangial cells. As a result, 17β-estradiol and Fulvestrant inhibit TGF-β1-induced type IV collagen and fibronectin expression in a dose-dependent manner, by suppressing acute Smad2/3 phosphorylation and Smad4 complex formation. Furthermore, estrogen and Fulvestrant also down-regulate Smad signaling by promoting ubiquitin/proteasome-dependent Smad2 degradation. These effects could be abrogated by receptor antagonist G-15 or GPER gene knockdown. GPER is also required for estrogen and Fulvestrant to regulate mesangial cell migration in response to TGF-β1. To conclude, GPER is crucial in modulating glomerular mesangial cell function including extracellular matrix production and migration.
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Affiliation(s)
- Yi-Chen Li
- Department of Pharmacy, Drum Tower Hospital Affiliated to Nanjing University Medical School, 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, PR China; Department of Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, PR China.
| | - Xuan-Sheng Ding
- Department of Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, PR China.
| | - Hui-Mei Li
- Department of Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, PR China.
| | - Ying Zhang
- Department of Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, PR China.
| | - Jing Bao
- Department of Clinical Pharmacy, School of Pharmacy, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, Jiangsu Province 210009, PR China.
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14
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Oxidative stress induced mitochondrial protein kinase A mediates cytochrome c oxidase dysfunction. PLoS One 2013; 8:e77129. [PMID: 24130844 PMCID: PMC3795003 DOI: 10.1371/journal.pone.0077129] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 08/29/2013] [Indexed: 11/30/2022] Open
Abstract
Previously we showed that Protein kinase A (PKA) activated in hypoxia and myocardial ischemia/reperfusion mediates phosphorylation of subunits I, IVi1 and Vb of cytochrome c oxidase. However, the mechanism of activation of the kinase under hypoxia remains unclear. It is also unclear if hypoxic stress activated PKA is different from the cAMP dependent mitochondrial PKA activity reported under normal physiological conditions. In this study using RAW 264.7 macrophages and in vitro perfused mouse heart system we investigated the nature of PKA activated under hypoxia. Limited protease treatment and digitonin fractionation of intact mitochondria suggests that higher mitochondrial PKA activity under hypoxia is mainly due to increased sequestration of PKA Catalytic α (PKAα) subunit in the mitochondrial matrix compartment. The increase in PKA activity is independent of mitochondrial cAMP and is not inhibited by adenylate cyclase inhibitor, KH7. Instead, activation of hypoxia-induced PKA is dependent on reactive oxygen species (ROS). H89, an inhibitor of PKA activity and the antioxidant Mito-CP prevented loss of CcO activity in macrophages under hypoxia and in mouse heart under ischemia/reperfusion injury. Substitution of wild type subunit Vb of CcO with phosphorylation resistant S40A mutant subunit attenuated the loss of CcO activity and reduced ROS production. These results provide a compelling evidence for hypoxia induced phosphorylation as a signal for CcO dysfunction. The results also describe a novel mechanism of mitochondrial PKA activation which is independent of mitochondrial cAMP, but responsive to ROS.
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