Publications by authors named "Asrar A Malik"

() is one of the most successful human pathogens, causing a severe and widespread infectious disease. The frequent emergence of multidrug-resistant (MDR) strains has exacerbated this public health crisis, particularly in underdeveloped regions. employs a sophisticated array of virulence factors to subvert host immune responses, both innate and adaptive.

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Mycobacterium tuberculosis (M. tb) is a significant intracellular pathogen responsible for numerous infectious disease-related deaths worldwide. It uses ESX-1 T7SS to damage phagosomes and to enter the cytosol of host cells after phagocytosis.

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Autophagy is a crucial immune defense mechanism that controls the survival and pathogenesis of by maintaining cell physiology during stress and pathogen attack. The E3-Ub ligases (PRKN, SMURF1, and NEDD4) and autophagy receptors (SQSTM1, TAX1BP1, CALCOCO2, OPTN, and NBR1) play key roles in this process. Galectins (LGALSs), which bind to sugars and are involved in identifying damaged cell membranes caused by intracellular pathogens such as , are essential.

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Severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) regulates autophagic flux by blocking the fusion of autophagosomes with lysosomes, causing the accumulation of membranous vesicles for replication. Multiple SARS-CoV-2 proteins regulate autophagy with significant roles attributed to ORF3a. Mechanistically, open reading frame 3a (ORF3a) forms a complex with UV radiation resistance associated, regulating the functions of the PIK3C3-1 and PIK3C3-2 lipid kinase complexes, thereby modulating autophagosome biogenesis.

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Diagnosis and treatment of lung diseases pose serious challenges. Currently, diagnostic as well as therapeutic methods show poor efficacy toward drug-resistant bacterial infections, while chemotherapy causes toxicity and nonspecific delivery of drugs. Advanced treatment methods that cure lung-related diseases, by enabling drug bioavailability via nasal passages during mucosal formation, which interferes with drug penetration to targeted sites, are in demand.

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Article Synopsis
  • Omicron variants have developed key mutations (L452R and F486V) that help them evade immunity from vaccines and previous infections, pointing to their ability to maintain an advantage as they evolve.
  • While hospitalizations are currently low, surges from these newer variants (BA.4/BA.5) could strain healthcare systems, as seen recently in the USA and Portugal, despite being potentially more severe than earlier Omicron strains.
  • There's a call for increased COVID-19 surveillance, especially in low- and middle-income countries, to prevent the unnoticed spread of new variants and understand the impact of different types of vaccines on their evolution.
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Infections are known to cause tumours though more attributed to viruses. Strong epidemiological links suggest association between bacterial infections and cancers as exemplified by Helicobacter pylori and Salmonella spp. Infection with Mycobacterium tuberculosis (M.

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Article Synopsis
  • * Immunotoxins (ITs) are innovative treatments combining a targeting component and a toxin to eliminate CSCs by inducing cell death.
  • * The review highlights recent developments and challenges in using ITs against CSCs, aiming to improve treatment efficacy for cancer patients.
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In the present work, an attempt was undertaken to improve the oral bioavailability and anticancer activity of abiraterone acetate. Solid lipid nanoparticles (SLNs) were developed using the quality by design (QbD) principles and evaluated through , , and studies. Solid lipid suitability was evaluated by equilibrium solubility study, while surfactant and cosurfactant were screened based on the ability to form microemulsion with the selected lipid.

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Background: Chlorophytum comosum, popularly known as Spider Ivy, is used as a medicinal plant in traditional Chinese medicine, however, its detailed chemical composition and biological activity are yet unexplored.

Objective: To carry out the phytochemical investigation on different parts of Chlorophytum comosum using GCMS/ LC-ESI-MS and evaluation of its antioxidant, hemolytic and antiproliferative potential on breast cancer (MCF-7), lung cancer (A549, H1299) and normal lung (L-132) cell lines.

Methods: Chemical constituents from aqueous roots and leaves extracts were identified using LC-ESI-MS/GCMS.

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