Publications by authors named "Raja Ishaq Nabi Khan"

Article Synopsis
  • Japanese encephalitis virus (JEV) is a serious mosquito-borne infection that primarily affects children, leading to severe neurological issues and high mortality rates worldwide.
  • This study investigates how human macrophages respond to JEV infection by analyzing changes in protein expression over time, revealing that 443 proteins were differentially regulated, with significant upregulation of key antiviral proteins.
  • The research highlights important immune pathways activated during JEV infection, especially the type I interferon signaling pathway, offering insights that could help develop strategies for better managing this public health threat.
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Peste des petits ruminants (PPR) is an acute, highly contagious viral disease of goats and sheep, caused by the Peste des petits ruminants virus (PPRV). Earlier studies suggest the involvement of diverse regulatory mechanisms in PPRV infection. Methylation at N6 of Adenosine called mA is a type RNA modification that influences various physiological and pathological phenomena.

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Pig pasteurellosis, caused by Pasteurella multocida, is an acute infection that also has economic implications for pig farmers. We report the complete genome sequence of a P. multocida, serovar B:2 'Soron' strain isolated from the blood of a pig that had died of pasteurellosis in India.

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Virus infection alters host gene expression, therefore ideal and stable reference housekeeping genes are required to normalise the expression of other expressed host genes in quantitative real-time PCR (qRT-PCR). The suitable reference gene may vary in response to different viral infections in different hosts or cells. In the present study, we cultured primary lamb testis cells (LTC) and assessed the expression stability of seven widely used housekeeping genes (B2M, HMBS, HPRT1, HSP-90, POLR2A, 18s_RNA, GAPDH) as reference genes in Sheeppox virus (SPPV) infected and control (uninfected-0h) LTC at 0.

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a viral pathogen causing life-threatening diseases in humans. Interaction between the spike protein of SARS-CoV-2 and angiotensin-converting enzyme 2 (ACE2) is a potential factor in the infectivity of a host. In this study, the interaction of SARS-CoV-2 spike protein with its receptor, ACE2, in different hosts was evaluated to predict the probability of viral entry.

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(PPR) characterized by fever, sore mouth, conjunctivitis, gastroenteritis, and pneumonia, is an acute, highly contagious viral disease of sheep and goats. The role of long non-coding RNAs (lncRNAs) in PPRV infection has not been explored to date. In this study, the transcriptome profiles of virulent Peste des petits ruminants virus (PPRV) infected goat tissues - lung and spleen were analyzed to identify the role of lncRNAs in PPRV infection.

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In the present study, healthy goats and sheep ( = 5) that were confirmed negative for ruminants virus (PPRV) antibodies by monoclonal antibody-based competitive ELISA and by serum neutralization test and for PPRV antigen by s-ELISA were vaccinated with Sungri/96. A quantitative study was carried out to compare the proteome of peripheral blood mononuclear cells (PBMCs) of vaccinated goat and sheep [5 days post-vaccination (dpv) and 14 dpv] vs. unvaccinated (0 day) to divulge the alteration in protein expression following vaccination.

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Transcriptome profiling of Vrindavani and Tharparkar cattle (n = 5 each) revealed that more numbers of genes were dysregulated in Vrindavani than in Tharparkar. A contrast in gene expression was observed with 18.9 % of upregulated genes in Vrindavani downregulated in Tharparkar and 17.

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Article Synopsis
  • The study analyzed lamb testis cells infected with two strains of the sheeppox virus (SPPV): a wild strain (WS) and a vaccine strain (VS) during an early infection phase.
  • It found that the vaccine strain (VS) led to a greater number of differentially expressed genes (DEGs) and impacted more signaling pathways than the wild strain (WS).
  • The research identified key host proteins and immune-related genes that play crucial roles in viral attachment, entry, and the regulation of apoptosis, highlighting differences in the pathogenic mechanisms of the two virus strains.
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Epitranscriptomics involves functionally relevant biochemical modifications of RNA taking place at the transcriptome level without a change in the sequence of ribonucleotides. Several types of modifications that affect the processing and function of differentRNA types have been reported. Methylation at N of Adenosine called mA is one such modification, quite widespread in occurrence and reported in snRNAs, lncRNAs, circRNAs, rRNAs, miRNAs, and most abundantly, in mRNAs.

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Immune response is a highly coordinated cascade involving all the subsets of peripheral blood mononuclear cells (PBMCs). In this study, RNA sequencing (RNA-Seq) analysis of PBMC subsets was done to delineate the systems biology behind immune protection of the vaccine in sheep and goats. The PBMC subsets studied were CD4, CD8, CD14, CD21, and CD335 cells from day 0 and day 5 of sheep and goats vaccinated with Sungri/96 peste des petits ruminants virus.

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Cancer remains one of the leading causes of death worldwide in humans and animals. Conventional treatment regimens often fail to produce the desired outcome due to disturbances in cell physiology that arise during the process of transformation. Additionally, development of treatment regimens with no or minimum side-effects is one of the thrust areas of modern cancer research.

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In this study, transcriptome analysis of PPRV infected PBMC subsets-T helper cells, T cytotoxic cells, monocytes, and B lymphocytes was done to delineate their role in host response. PPRV was found to infect lymphocytes and not monocytes. The established receptor for PPRV-SLAM was found downregulated in lymphocytes and non-differentially expressed in monocytes.

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In this study, the miRNAome and proteome of virulent Peste des petits ruminants virus (PPRV) infected goat peripheral blood mononuclear cells (PBMCs) were analyzed. The identified differentially expressed miRNAs (DEmiRNAs) were found to govern genes that modulate immune response based on the proteome data. The top 10 significantly enriched immune response processes were found to be governed by 98 genes.

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Identification of suitable candidate reference genes is an important prerequisite for validating the gene expression data obtained from downstream analysis of RNA sequencing using quantitative real time PCR (qRT-PCR). Though existence of a universal reference gene is myth, commonly used reference genes can be assessed for expression stability to confer their suitability to be used as candidate reference genes in gene expression studies. In this study, we evaluated the expression stability of ten most commonly used reference genes (GAPDH, ACTB, HSP90, HMBS, 18S rRNA, B2M, POLR2A, HPRT1, ACAC, YWHAZ) in fourteen different Peste des petits ruminants virus (PPRV) infected tissues of goats and sheep.

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