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Teegala LR, Gudneppanavar R, Sabu Kattuman EE, Snyderman M, Thanusha AV, Katari V, Thodeti CK, Paruchuri S. Prostaglandin E 2 attenuates lung fibroblast differentiation via inactivation of yes-associated protein signaling. FASEB J 2023; 37:e23199. [PMID: 37732601 DOI: 10.1096/fj.202300745rr] [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: 04/15/2023] [Revised: 08/15/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023]
Abstract
Prostaglandin E2 (PGE2 ) has been implicated in counteracting fibroblast differentiation by TGFβ1 during pulmonary fibrosis. However, the precise mechanism is not well understood. We show here that PGE2 via EP2 R and EP4 R inhibits the expression of mechanosensory molecules Lysyl Oxidase Like 2 (LOXL2), myocardin-related transcription factor A (MRTF-A), ECM proteins, plasminogen activation inhibitor 1 (PAI-1), fibronectin (FN), α-smooth muscle actin (α-SMA), and redox sensor (nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (NOX4)) required for TGFβ1-mediated fibroblast differentiation. We further demonstrate that PGE2 inhibits fibrotic signaling via Yes-associated protein (YAP) but does so independently from its actions on SMAD phosphorylation and conserved cylindromatosis (CYLD; deubiquitinase) expression. Mechanistically, PGE2 phosphorylates/inactivates YAP downstream of EP2 R/Gαs and restrains its translocation to the nucleus, thus inhibiting its interaction with TEA domain family members (TEADs) and transcription of fibrotic genes. Importantly, pharmacological or siRNA-mediated inhibition of YAP significantly downregulates TGFβ1-mediated fibrotic gene expression and myofibroblast formation. Notably, YAP expression is upregulated in the lungs of D. farinae-treated wild type (WT) mice relative to saline-treated WT mice. Our results unravel a unique role for PGE2 -YAP interactions in fibroblast differentiation, and that PGE2 /YAP inhibition can be used as a novel therapeutic target in the treatment of pathological conditions associated with myofibroblasts like asthma.
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Affiliation(s)
- Lakshminarayan Reddy Teegala
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | - Ravindra Gudneppanavar
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | - Emma Elizabeth Sabu Kattuman
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | | | - Arani Varamuniprasad Thanusha
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | - Venkatesh Katari
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | - Charles K Thodeti
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
| | - Sailaja Paruchuri
- Department of Physiology and Pharmacology, The University of Toledo College of Medicine and Life Sciences, Ohio, Toledo, USA
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Thanusha AV, Koul V. Biocompatibility evaluation for the developed hydrogel wound dressing - ISO-10993-11 standards - in vitroand in vivostudy. Biomed Phys Eng Express 2021; 8. [PMID: 34794128 DOI: 10.1088/2057-1976/ac3b2b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 11/18/2021] [Indexed: 11/11/2022]
Abstract
Assessment of biocompatibility for the developed wound dressing plays a significant role in translational studies. In the present research work, a wound dressing has been developed using gelatin, hyaluronic acid and chondroitin sulfate using EDC as crosslinker in a specific manner. The characterized hydrogel wound dressing was evaluated for its biocompatibility studies by means of ISO-10993-11 medical device rules and standards. Various parameters like skin sensitization test, acute systemic toxic test, implantation study, intracutaneous reactivity test,in vitrocytotoxicity test and bacterial reverse mutation test, were evaluated and the results demonstrated its safety for the pre-clinical investigation.
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Affiliation(s)
- A V Thanusha
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, India.,Biomedical Engineering Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Veena Koul
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, India.,Biomedical Engineering Unit, All India Institute of Medical Sciences, New Delhi, India
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Khurana A, Banothu AK, Thanusha AV, Nayal A, Dinda AK, Singhal M, Bharani KK, Koul V. Preclinical efficacy study of a porous biopolymeric scaffold based on gelatin-hyaluronic acid-chondroitin sulfate in a porcine burn injury model: role of critical molecular markers (VEGFA, N-cadherin, COX-2), gamma sterilization efficacy and a comparison of healing potential to Integra™. Biomed Mater 2021; 16. [PMID: 34384056 DOI: 10.1088/1748-605x/ac1d3e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/12/2021] [Indexed: 12/24/2022]
Abstract
Development of scaffold from biopolymers can ease the requirements for donor skin autograft and plays an effective role in the treatment of burn wounds. In the current study, a porous foam based, bilayered hydrogel scaffold was developed using gelatin, hyaluronic acid and chondroitin sulfate (G-HA-CS). The fabricated scaffold was characterized physicochemically for pre- and post-sterilization efficacy by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA).In-vitrostudies proved that the scaffold promoted cellular proliferation. The efficacy of G-HA-CS scaffold was compared with Integra™ at different time points (7, 14, 21 and 42 days), in a swine second degree burn wound model. Remarkable healing potential of the scaffold was evident from the wound contraction rate, reduction of IL-6, TNF-αand C3. The expression of healing markers TGF-β1 and collagen 1 revealed significant skin regeneration with regulated fibroblast activation towards the late phase of healing (p< 0.001 at day 21 and 42 vs. control). Expression of Vascular Endothelial Growth Factor A (VEGFA), vimentin and N-cadherin were found to favor angiogenesis and skin regeneration. Mechanistically, scaffold promoted wound healing by modulation of CD-45, cyclooxygenase-2 and MMP-2. Thus, the promising results with foam based scaffold, comparable to Integra™ in swine burn injury model offer an innovative lead for clinical translation for effective management of burn wound.
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Affiliation(s)
- Amit Khurana
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi 110016, India.,Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad 500030, Telangana, India.,Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Warangal 506166, Telangana, India
| | - Anil Kumar Banothu
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad 500030, Telangana, India.,Department of Aquatic Animal Health Management, College of Fishery Science, PVNRTVU, Pebbair, Wanaparthy 509104, Telangana, India
| | - A V Thanusha
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi 110016, India
| | - Aradhana Nayal
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi 110016, India
| | - Amit Kumar Dinda
- Department of Pathology, All India Institute of Medical Sciences (AIIMS), Ansari Nagar, New Delhi 110029, India
| | - Maneesh Singhal
- Department of Plastic, Reconstructive and Burns Surgery, J.P.N. Apex Trauma Centre, All India Institute of Medical Sciences (AIIMS), Raj Nagar, New Delhi 110029, India
| | - Kala Kumar Bharani
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad 500030, Telangana, India.,Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science (CVSc), PVNRTVU, Warangal 506166, Telangana, India.,Department of Aquatic Animal Health Management, College of Fishery Science, PVNRTVU, Pebbair, Wanaparthy 509104, Telangana, India
| | - Veena Koul
- Centre for Biomedical Engineering (CBME), Indian Institute of Technology (IIT) Delhi, Hauz Khas, New Delhi 110016, India
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