1,402 results match your criteria: "University of Delhi-South Campus[Affiliation]"

Tauopathies are a group of neurodegenerative diseases characterized by the accumulation of paired helical filaments (PHFs)/or neurofibrillary tangles (NFTs) in neuronal/glial cells. Besides hyperphosphorylation of tau protein, aberrant heterochromatin loss and translation dysfunction have emerged as other important aspects contributing to the disease pathogenesis. We have recently reported that tissue-specific downregulation of insulin signaling or its growth-promoting downstream sub-branch effectively reinstates the tau-mediated overactivated insulin pathway, and restricts pathogenic tau hyperphosphorylation and aggregate formation.

View Article and Find Full Text PDF

Virus infection brings about changes in the transcriptome, proteome and metabolome status of the infected plant wherein substantial alterations in the abundance of phytohormones and associated components involved in their signaling pathways have been observed. In the recent years, extensive research in the field of plant virology has showcased the undisputable significance of phytohormone signaling during plant-virus interactions. Apart from acting as growth regulators, phytohormones elicit robust immune response, which restricts the viral multiplication within the plant as well as its propagation by vector.

View Article and Find Full Text PDF
Article Synopsis
  • - Human polyglutamine disorders are caused by abnormal expansions of CAG repeats in specific genes, leading to neurodegenerative diseases, but current therapies have been largely ineffective.
  • - This study explored a combination therapy using Drosophila models, targeting the insulin signaling pathway and identifying Drosophila Myc as a key partner that enhances rescue from poly(Q) induced neurodegeneration.
  • - The findings suggest that the collaboration between insulin receptor (InR) and Myc can alleviate various pathological issues of poly(Q) disorders, indicating their potential as a therapeutic strategy.
View Article and Find Full Text PDF

Plants are an intrinsic part of the soil community, which is comprised of a diverse range of organisms that interact in the rhizosphere through continuous molecular communications. The molecular dialogue within the plant microbiome involves a complex repertoire of primary and secondary metabolites that interact within different liquid matrices and biofilms. Communication functions are likely to involve membrane-less organelles formed by liquid-liquid phase separation of proteins and natural deep eutectic solvents that play a role as alternative media to water.

View Article and Find Full Text PDF

Regulatory network of non-coding RNA in Helicobacter pylori: A systematic approach.

Life Sci

December 2024

Department of Microbiology, University of Delhi South Campus, Benito Juarez Marg, New Delhi 110021, India. Electronic address:

Helicobacter pylori, a pathogenic bacterium residing in the human gut microbiome, is a forefront pillar of biological factors known to cause gastric cancer (GC) in human. At genetic levels, the emerging field of RNAomics has shed light on the need to investigate a significant biological macromolecule known as Noncoding RNA that plays pivotal role in diverse biological and functional facets of bacterial pathogenesis and survival. Notably, H.

View Article and Find Full Text PDF

Deciphering the role of growth regulators in enhancing plant immunity against herbivory.

Physiol Plant

October 2024

Molecular Biology Research Lab, Department of Zoology, Deshbandhu College, University of Delhi, Kalkaji, New Delhi, India.

Plants are central to global food production, and the pursuit of sustainability aims to enhance or preserve food quality while safeguarding the environment. Due to their immobility, plants are unable to evade unfavourable climatic setups or interactions with other living creatures. Upon their interaction with insect herbivores, plants face biotic stress, which is a constant challenge for plants, causing molecular, physiological, and biochemical changes and reducing their productivity.

View Article and Find Full Text PDF

Unlabelled: Chandipura virus (CHPV) is an emerging pathogen of Indian subcontinent. It is a vector borne virus and belongs to Rhabdovirus family. In recent past several outbreaks reported from the states of "Maharastha", "Gujrat", "Andra Pradesh" causing more than 300 deaths of children below 15 years and case-fatality rate was more than 50%.

View Article and Find Full Text PDF

Plant-virus-host interaction is a complex process involving several players. A constant arms race between the hosts and viruses has led to their co-evolution. Reactive oxygen species (ROS) are important signaling molecules that regulate plant growth, development, and stress responses.

View Article and Find Full Text PDF

Tetraspanins (TETs) are integral membrane proteins, characterized by four transmembrane domains and a unique signature motif in their large extracellular loop. They form dynamic supramolecular complexes called tetraspanin-enriched microdomains (TEMs), through interactions with partner proteins. In plants, TETs are involved in development, reproduction and immune responses, but their role in defining abiotic stress responses is largely underexplored.

View Article and Find Full Text PDF

Background: Non-Small Cell Lung Cancer (NSCLC) presents as a highly metastatic disease with Kras and P53 as prevalent oncogenic driver mutations. Endocytosis, through its role in receptor recycling and enrichment, is important for cancer cell proliferation and metastasis. Huntingtin Interacting Protein 1 (HIP1) is a clathrin mediated endocytic adapter protein found overexpressed in different cancers.

View Article and Find Full Text PDF
Article Synopsis
  • * Activin A Receptor Type 1 (ACVR1) is crucial for bone morphogenetic protein signaling and is linked to rare conditions like fibrodysplasia ossificans progressiva and diffuse intrinsic pontine glioma due to specific genetic mutations.
  • * Bioinformatics analyses identified seven destabilizing mutations in ACVR1 that may affect protein function and are associated with various cancers, suggesting they could be important for future studies in precision medicine for rare diseases.
View Article and Find Full Text PDF

Insights into the mechanism of Morbillivirus induced immune suppression.

Virology

December 2024

Department of Microbiology, University of Delhi South Campus, New Delhi, 110021, India. Electronic address:

Viruses enter the host cell, and various strategies are employed to evade the host immune system. These include overcoming the various components of the immune system, including modulation of the physical and chemical barriers, non-specific innate response and specific adaptive immune response. Morbilliviruses impose immune modulation by utilizing various approaches including hindering antigen presentation to T-Helper (T) cells, hematopoiesis and suppression of effector molecule activities.

View Article and Find Full Text PDF
Article Synopsis
  • - Ribosome biogenesis is a complex, energy-requiring process where GTPases play a crucial role, especially in the maturation of bacterial, cytosolic, and mitochondrial ribosomes.
  • - The study focuses on Mtg3, a GTPase involved in mitochondrial ribosome small subunit development, exploring its necessary interactions and the importance of its C-terminal domain for binding.
  • - Findings indicate that while some mutations affect GTP binding and activity, they do not hinder Mtg3's association with mitoribosomes, suggesting a model where Mtg3 facilitates ribosome maturation without needing to hydrolyze nucleotides actively.
View Article and Find Full Text PDF

Background: Obesity is a burgeoning global health problem with an escalating prevalence and severe implications for public health. New evidence indicates that long non-coding RNAs (lncRNAs) may play a pivotal role in regulating adipose tissue function and energy homeostasis across various species. However, the molecular mechanisms underlying obesity remain elusive.

View Article and Find Full Text PDF

Abscisic acid: An emerging player in plant-virus interactions.

Plant Physiol Biochem

October 2024

Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India. Electronic address:

In the evolutionary arm race between plants and viral pathogens, the plant hormone abscisic acid (ABA) has surfaced as a crucial player. This review accumulates substantial evidence that portrays ABA as a crucial regulatory hub, coordinating the complex network of plant antiviral immunity. It is capable of synchronizing resistance pathways, yet it can also be exploited as a susceptibility factor by viral effectors.

View Article and Find Full Text PDF

Overexpression of rice A20/AN1 zinc-finger protein, OsSAP10, improves water-deficit stress tolerance in Arabidopsis via interaction with multiple proteins. Stress-associated proteins (SAPs) constitute a class of A20/AN1 zinc-finger domain containing proteins and their genes are induced in response to multiple abiotic stresses. The role of certain SAP genes in conferring abiotic stress tolerance is well established, but their mechanism of action is poorly understood.

View Article and Find Full Text PDF

Cytokinin oxidase/dehydrogenase (CKX) is the key enzyme that has been observed to catalyze irreversible inactivation of cytokinins and thus modulate cytokinin levels in plants. CKX gene family is known to have few members which are, expanded in the genome mainly due to duplication events. A total of nine MiCKXs were identified in Morus indica cv K2 with almost similar gene structures and conserved motifs and domains.

View Article and Find Full Text PDF

Microbial xylanases are enzymes of great importance due to their wide industrial applications, especially in the degradation of lignocellulosic biomass into fermentable sugars. This study aimed to describe the production optimization and partial characterization of an ultra-thermostable, acidophilic, cellulase-free xylanase from an obligate thermophilic eubacterium Geobacillus thermoleovorans strain-AKNT10 (Ac.No.

View Article and Find Full Text PDF

Negative-strand RNA viruses form cytoplasmic inclusion bodies (IBs) representing virus replication foci through phase separation or biomolecular condensation of viral and cellular proteins, as a hallmark of their infection. Alternatively, mammalian cells form stalled mRNA containing antiviral stress granules (SGs), as a consequence of phosphorylation of eukaryotic initiation factor 2α (eIF2α) through condensation of several RNA-binding proteins including TIA-1. Whether and how Chandipura virus (CHPV), an emerging human pathogen causing influenza-like illness, coma and death, forms IBs and evades antiviral SGs remain unknown.

View Article and Find Full Text PDF

, a member of the ESKAPE pathogen group, is a prominent cause of hospital-acquired infections. The WHO has recognized carbapenem-resistant as a critical-one priority pathogen. These resilient superbugs have the ability to form biofilms and present a significant global threat.

View Article and Find Full Text PDF

Host-pathogen interactions are complex associations which evolve over long co-evolutionary histories. Pathogens exhibit different mechanisms to gain advantage over their host. Mimicry of host factors is an influential tool in subverting host mechanisms to ensure pathogenesis.

View Article and Find Full Text PDF

Integrating health interventions in a growing economy like India, with a birth cohort of 27 million/year, one-fifth of all childbirths, and approximately one-third of neonatal deaths globally, is a challenge. While mortality statistics are vital, intact survival and early preventive healthcare, such as newborn screening (NBS), are paramount. The appalling lack of information about the precise burden of metabolic errors at the state/national level or a mandated program encouraged a feasibility study of NBS in a prospective newborn cohort recruited in Delhi State (November 2014-April 2017) using a public-private partnership mode.

View Article and Find Full Text PDF

Prognostic role of TEAD4 in TNBC: in-silico inhibition of the TEAD4-YAP interaction by flufenamic acid analogs.

In Silico Pharmacol

July 2024

Molecular Biology Research Laboratory, Department of Zoology, & DBC I4 Centre, Deshbandhu College, University of Delhi, New Delhi, 110019 India.

Unlabelled: Triple-negative breast cancer (TNBC) poses a significant global health challenge due to its highly aggressive nature and invasive characteristics. Dysregulation of the Hippo pathway, a key regulator of various biological processes, is observed in TNBC, and its inhibition holds promise for impeding cancer growth. This in-silico analysis investigates the role of Transcriptional Enhanced Associate Domain 4 (TEAD4) in TNBC and its interaction with Yes Associated Protein (YAP) in cancer progression.

View Article and Find Full Text PDF

Background: Glioblastoma due to recurrence is clinically challenging with 10-15 months overall survival. Previously we showed that therapy-induced senescence (TIS) in glioblastoma reverses causing recurrence. Here, we aim to delineate the TIS reversal mechanism for potential therapeutic intervention to prevent glioblastoma (GBM) recurrence.

View Article and Find Full Text PDF

Sickle cell disease (SCD) affects two-thirds of African and Indian children. Understanding the molecular mechanisms contributing to oxidative stress may be useful for therapeutic development in SCD. We evaluated plasma elemental levels of Indian SCD patients, trait, and healthy controls ( = 10 per group) inductively coupled plasma mass spectrometry.

View Article and Find Full Text PDF