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Kumar R, Chander Y, Khandelwal N, Verma A, Rawat KD, Shringi BN, Pal Y, Tripathi BN, Barua S, Kumar N. ROCK1/MLC2 inhibition induces decay of viral mRNA in BPXV infected cells. Sci Rep 2022; 12:17811. [PMID: 36280692 PMCID: PMC9592580 DOI: 10.1038/s41598-022-21610-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 09/29/2022] [Indexed: 01/19/2023] Open
Abstract
Rho-associated coiled-coil containing protein kinase 1 (ROCK1) intracellular cell signaling pathway regulates cell morphology, polarity, and cytoskeletal remodeling. We observed the activation of ROCK1/myosin light chain (MLC2) signaling pathway in buffalopox virus (BPXV) infected Vero cells. ROCK1 depletion by siRNA and specific small molecule chemical inhibitors (Thiazovivin and Y27632) resulted in a reduced BPXV replication, as evidenced by reductions in viral mRNA/protein synthesis, genome copy numbers and progeny virus particles. Further, we demonstrated that ROCK1 inhibition promotes deadenylation of viral mRNA (mRNA decay), mediated via inhibiting interaction with PABP [(poly(A)-binding protein] and enhancing the expression of CCR4-NOT (a multi-protein complex that plays an important role in deadenylation of mRNA). In addition, ROCK1/MLC2 mediated cell contraction, and perinuclear accumulation of p-MLC2 was shown to positively correlate with viral mRNA/protein synthesis. Finally, it was demonstrated that the long-term sequential passage (P = 50) of BPXV in the presence of Thiazovivin does not select for any drug-resistant virus variants. In conclusion, ROCK1/MLC2 cell signaling pathway facilitates BPXV replication by preventing viral mRNA decay and that the inhibitors targeting this pathway may have novel therapeutic effects against buffalopox.
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Affiliation(s)
- Ram Kumar
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India ,grid.464655.00000 0004 1768 5915Department of Veterinary Microbiology and Biotechnology, Rajasthan University of Veterinary and Animal Sciences, Bikaner, India ,grid.418105.90000 0001 0643 7375Present Address: Animal Science Division, Indian Council of Agricultural Research, Krishi Bhawan, New Delhi, India
| | - Yogesh Chander
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India ,grid.418105.90000 0001 0643 7375Present Address: Animal Science Division, Indian Council of Agricultural Research, Krishi Bhawan, New Delhi, India ,grid.411892.70000 0004 0500 4297Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana India
| | - Nitin Khandelwal
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Assim Verma
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Krishan Dutt Rawat
- grid.411892.70000 0004 0500 4297Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana India
| | - Brij N. Shringi
- grid.464655.00000 0004 1768 5915Department of Veterinary Microbiology and Biotechnology, Rajasthan University of Veterinary and Animal Sciences, Bikaner, India
| | - Yash Pal
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Bhupendra N. Tripathi
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India ,grid.418105.90000 0001 0643 7375Present Address: Animal Science Division, Indian Council of Agricultural Research, Krishi Bhawan, New Delhi, India
| | - Sanjay Barua
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Naveen Kumar
- grid.462601.70000 0004 1768 7902Present Address: National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
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Kumar N, Khandelwal N, Kumar R, Chander Y, Rawat KD, Chaubey KK, Sharma S, Singh SV, Riyesh T, Tripathi BN, Barua S. Inhibitor of Sarco/Endoplasmic Reticulum Calcium-ATPase Impairs Multiple Steps of Paramyxovirus Replication. Front Microbiol 2019; 10:209. [PMID: 30814986 PMCID: PMC6381065 DOI: 10.3389/fmicb.2019.00209] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 01/24/2019] [Indexed: 12/31/2022] Open
Abstract
Sarco/endoplasmic reticulum calcium-ATPase (SERCA) is a membrane-bound cytosolic enzyme which is known to regulate the uptake of calcium into the sarco/endoplasmic reticulum. Herein, we demonstrate for the first time that SERCA can also regulate virus replication. Treatment of Vero cells with SERCA-specific inhibitor (Thapsigargin) at a concentration that is nontoxic to the cells significantly reduced Peste des petits ruminants virus (PPRV) and Newcastle disease virus (NDV) replication. Conversely, overexpression of SERCA rescued the inhibitory effect of Thapsigargin on virus replication. PPRV and NDV infection induced SERCA expression in Vero cells, which could be blocked by Thapsigargin. Besides inducing enhanced formation of cytoplasmic foci, Thapsigargin was shown to block viral entry into the target cells as well as synthesis of viral proteins. Furthermore, NDV was shown to acquire significant resistance to Thapsigargin upon long-term passage (P) in Vero cells. As compared to the P0 and P70-Control, the fusion (F) protein of P70-Thapsigargin virus exhibited a unique mutation at amino acid residue 104 (E104K), whereas no Thapsigargin-associated mutations were observed in HN gene. To the best of our knowledge, this is the first report describing the virus-supportive role of SERCA and a rare report suggesting that viruses may acquire resistance even in the presence of an inhibitor that targets a cellular factor.
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Affiliation(s)
- Naveen Kumar
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Nitin Khandelwal
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Ram Kumar
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Yogesh Chander
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Krishan Dutt Rawat
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | | | - Shalini Sharma
- Department of Veterinary Physiology and Biochemistry, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | | | - Thachamvally Riyesh
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Bhupendra N Tripathi
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
| | - Sanjay Barua
- National Centre for Veterinary Type Cultures, ICAR-National Research Centre on Equines, Hisar, India
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