129 results match your criteria: "Indraprastha Institute of Information Technology Delhi[Affiliation]"

In eukaryotic cells, miRNAs regulate a plethora of cellular functionalities ranging from cellular metabolisms, and development to the regulation of biological networks and pathways, both under homeostatic and pathological states like cancer.Despite their immense importance as key regulators of cellular processes, accurate and reliable estimation of miRNAs using Next Generation Sequencing is challenging, largely due to the limited availability of robust computational tools/methods/pipelines. Here, we introduce miRPipe, an end-to-end computational framework for the identification, characterization, and expression estimation of small RNAs, including the known and novel miRNAs and previously annotated pi-RNAs from small-RNA sequencing profiles.

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Article Synopsis
  • The study explores how quercetin, a known triplex binding molecule, interacts with the triple-helix structure of the metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) long non-coding RNA.
  • Quercetin binds to MALAT1 with a 1:1 stoichiometry and a binding affinity of 495 ± 61 nM, leading to a significant downregulation (around 50%) of MALAT1 transcript levels in MCF7 breast cancer cells.
  • This interaction could inform the development of new therapeutics and enhance understanding of MALAT1 functions, as it also induces changes in the alternative splicing of downstream genes.
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Upregulation of RNA polymerase I (Pol I) transcription and the overexpression of Pol I transcriptional machinery are crucial molecular alterations favoring malignant transformation. However, the causal molecular mechanism(s) of this aberration remain largely unknown. Here, we found that Pol I transcription and its core machinery are upregulated in lung adenocarcinoma (LUAD).

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Mortalin, a heat shock family protein enriched in cancer cells, is known to inactivate tumor suppressor protein p53. Abrogation of mortalin-p53 interaction and reactivation of p53 has been shown to trigger growth arrest/apoptosis in cancer cells and hence, suggested to be useful in cancer therapy. In this premise, we earlier screened a chemical library to identify potential disruptors of mortalin-p53 interaction, and reported two novel synthetic small molecules (5-[1-(4-methoxyphenyl) (1,2,3,4-tetraazol-5-yl)]-4-phenylpyrimidine-2-ylamine) and (4-[(1E)-2-(2-phenylindol-3-yl)-1-azavinyl]-1,2,4-triazole) called Mortaparib and Mortaparib, respectively.

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Inter and intra-tumoral heterogeneity are major stumbling blocks in the treatment of cancer and are responsible for imparting differential drug responses in cancer patients. Recently, the availability of high-throughput screening datasets has paved the way for machine learning based personalized therapy recommendations using the molecular profiles of cancer specimens. In this study, we introduce Precily, a predictive modeling approach to infer treatment response in cancers using gene expression data.

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Background: Evidence from peer-reviewed literature is the cornerstone for designing responses to global threats such as COVID-19. In massive and rapidly growing corpuses, such as COVID-19 publications, assimilating and synthesizing information is challenging. Leveraging a robust computational pipeline that evaluates multiple aspects, such as network topological features, communities, and their temporal trends, can make this process more efficient.

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Alternative, intraspecific phenotypes offer an opportunity to identify the mechanistic basis of differences associated with distinctive life history strategies. Wing dimorphic insects, in which both flight-capable and flight-incapable individuals occur in the same population, are particularly well-studied in terms of why and how the morphs trade off flight for reproduction. Yet despite a wealth of studies examining the differences between female morphs, little is known about male differences, which could arise from different causes than those acting on females.

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Article Synopsis
  • The genome of eukaryotic cells is at risk from various threats, which can lead to cell mutations and malignancy, despite existing DNA damage responses.
  • Metabokiller is a newly developed classifier that effectively identifies carcinogens by analyzing multiple factors such as electrophilicity and oxidative stress, and it surpasses current methods in accuracy.
  • The validity of Metabokiller's predictions was confirmed through experiments with yeast and human cells, demonstrating a strong correlation with its flagged human metabolites.
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Presentation attack detection (PAD) algorithms have become an integral requirement for the secure usage of face recognition systems. As face recognition algorithms and applications increase from constrained to unconstrained environments and in multispectral scenarios, presentation attack detection algorithms must also increase their scope and effectiveness. It is important to realize that the PAD algorithms are not only effective for one environment or condition but rather be generalizable to a multitude of variabilities that are presented to a face recognition algorithm.

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Artificial intelligence (AI)-based computational techniques allow rapid exploration of the chemical space. However, representation of the compounds into computational-compatible and detailed features is one of the crucial steps for quantitative structure-activity relationship (QSAR) analysis. Recently, graph-based methods are emerging as a powerful alternative to chemistry-restricted fingerprints or descriptors for modeling.

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Background: Structural and cultural barriers limit Indian women's access to adequate postnatal care and support despite their importance for maternal and neonatal health. Targeted postnatal education and support through a mobile health intervention may improve postnatal recovery, neonatal care practices, nutritional status, knowledge and care seeking, and mental health.

Objective: We sought to understand the feasibility and acceptability of our first pilot phase, a flexible 6-week postnatal mobile health intervention delivered to 3 groups of women in Punjab, India, and adapt our intervention for our next pilot phase, which will formally assess intervention feasibility, acceptability, and preliminary efficacy.

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A call for citizen science in pandemic preparedness and response: beyond data collection.

BMJ Glob Health

June 2022

International Digital Health & AI Research Collaborative (I-DAIR), Geneva, Switzerland.

Article Synopsis
  • The COVID-19 pandemic highlights the importance of community collaboration in managing public health, emphasizing trust among stakeholders as essential for effective preparedness and response.
  • Citizen science, which involves public participation in scientific research, is crucial for fostering community engagement and trust with governments and researchers.
  • This review advocates for more inclusive and participatory citizen science methods that incorporate diverse populations, aiming to enhance both immediate and long-term community benefits in health-related efforts.
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Cancers are caused by genomic alterations that may be inherited, induced by environmental carcinogens, or caused due to random replication errors. Postinduction of carcinogenicity, mutations further propagate and drastically alter the cancer genomes. Although a subset of driver mutations has been identified and characterized to date, most cancer-related somatic mutations are indistinguishable from germline variants or other noncancerous somatic mutations.

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A vaccine is our best bet for mitigating the ongoing onslaught of the pandemic. However, vaccine is also expected to be a limited resource. An optimal allocation strategy, especially in countries with access inequities and temporal separation of hot-spots, might be an effective way of halting the disease spread.

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Characterizing the mutational landscape of MM and its precursor MGUS.

Am J Cancer Res

April 2022

Laboratory Oncology Unit, Dr. B.R.A. IRCH, AIIMS New Delhi 110029, India.

Mutational Signatures and Tumor mutational burden (TMB) have emerged as prognostic biomarkers in cancer genomics. However, the association of TMB with overall survival (OS) is still unknown in newly diagnosed multiple myeloma (NDMM) patients. Further, the change in the mutational spectrum involving both synonymous and non-synonymous mutations as MGUS progresses to MM is unexplored.

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Despite substantial progress in surgery, managing multi-tissue injuries is strenuous to accomplish and requires a multi-staged serial treatment of individual tissues. Stimulated regeneration affects the complete structural and functional repair of both hard and soft tissues post-injury and thus serves as an attractive therapeutic option to target multi-tissue injuries. This study utilized data mining and structural analysis to identify a target that has the ability to evoke healing of the two most commonly injured tissues i.

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Conserved and divergent chaperoning effects of Hsp60/10 chaperonins on protein folding landscapes.

Proc Natl Acad Sci U S A

May 2022

Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.

The GroEL/ES chaperonin cavity surface charge properties, especially the negative charges, play an important role in its capacity to assist intracavity protein folding. Remarkably, the larger fraction of GroEL/ES negative charges are not conserved among different bacterial species, resulting in a large variation in negative-charge density in the GroEL/ES cavity across prokaryotes. Intriguingly, eukaryotic GroEL/ES homologs have the lowest negative-charge density in the chaperonin cavity.

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The global efforts to control COVID-19 are threatened by the rapid emergence of novel SARS-CoV-2 variants that may display undesirable characteristics such as immune escape, increased transmissibility or pathogenicity. Early prediction for emergence of new strains with these features is critical for pandemic preparedness. We present , a supervised and causally predictive model using unsupervised latent space features of SARS-CoV-2 genome sequences.

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Cancer is fundamentally a disease of perturbed genes. Although many mutations can be marked in the genome of cancer or a transformed cell, the initiation and progression are driven by only a few mutational events, viz., driver mutations that progressively govern and execute the functional impacts.

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This paper uses a comparative ethnographic approach to explore the ways in which social media enables new economic strategies that capitalize on women's traditional forms of reliance within their local communities. We use ethnographic examples from northern Chile, southeast Italy, and south India to show how women are successful in establishing small but prestigious entrepreneurial activities by using social media to respond to local social and cultural needs. Women use social media to transform both conventional work practices and individuals' notions of work in ways that overcome important structural constraints they face in their respective communities.

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Cancer chemotherapy and beyond: Current status, drug candidates, associated risks and progress in targeted therapeutics.

Genes Dis

July 2023

Biotechnology of Macromolecules Research Group, Instituto de Productos Naturales y Agrobiología, IPNA-CSIC, San Cristóbal de La Laguna 38206, Tenerife, Spain.

Cancer is an abnormal state of cells where they undergo uncontrolled proliferation and produce aggressive malignancies that causes millions of deaths every year. With the new understanding of the molecular mechanism(s) of disease progression, our knowledge about the disease is snowballing, leading to the evolution of many new therapeutic regimes and their successive trials. In the past few decades, various combinations of therapies have been proposed and are presently employed in the treatment of diverse cancers.

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The variability of clinical course and prognosis of COVID-19 highlights the necessity of patient sub-group risk stratification based on clinical data. In this study, clinical data from a cohort of Indian COVID-19 hospitalized patients is used to develop risk stratification and mortality prediction models. We analyzed a set of 70 clinical parameters including physiological and hematological for developing machine learning models to identify biomarkers.

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Mutations in the tumor suppressor protein p53 is a prevalent feature in majority of cancers resulting in inactivation of its activities related to control of cell cycle progression and proliferation. p53 is one of the common hotspot mutations that causes decrease in its thermodynamic stability. Some small molecules have been shown to bind to the mutated site and restore its wild type thermodynamics and tumor suppressor function.

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Withaferin A (Wi-A) and Caffeic Acid Phenethyl Ester (CAPE) are the bioactive ingredients of Ashwagandha () and propolis, respectively. Both of these natural compounds have been shown to possess anticancer activity. In the present study, we recruited a low dose of each of these compounds and developed a combination that exhibited remarkably potent anti-migratory and anti-angiogenic activities.

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