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Bhotika, H.

Publications and source records attributed to Bhotika, H..

2 recordsLinked to original sources

Reproducible-by-design: Romics Processor, a FAIR ecosystem for multi-omics and spatial-omics analysis

Multi-omics and spatial-omics technologies are exploding in use, producing increasingly complex datasets. Existing bioinformatics tools are developing rapidly but fail to fully enforce the FAIR principles, leaving the field vulnerable to escalating issues in computational reproducibility. Here, we introduce a reproducible-by-design paradigm represented in an omics data processing package, RomicsProcessor. At its core, the "Romics_object", which is a self-contained digital artifact that encapsulates the full history of the data from the original data to the fully processed state, capturing the details of the transformative steps and the required dependencies. This architecture ensures that computational workflows are fully portable and reproducible. In this manuscript, we demonstrate RomicProcessors computational capabilities and scalability on diverse datasets, including bulk proteomics, large-scale multiplexed immunofluorescence, and multi-batch mass spectrometry imaging. Providing a robust framework for truly FAIR Data Principles-based analysis, RomicsProcessor is a blueprint for the next generation of reproducible bioinformatics tools that can dramatically accelerate discovery in multi-omics biology in the era of artificial intelligence.

bioinformatics↗

Integrating N-glycan and CODEX imaging reveal cell-specific protein glycosylation in healthy human lung

N-linked glycosylation, the major post-translational modification of cellular proteins, is important for proper lung functioning, serving to fold, traffic, and stabilize protein structures and to mediate various cell-cell recognition events. Identifying cell-specific N-glycan structures in human lungs is critical for understanding the chemistry and mechanisms that guide cell-cell and cell-matrix interactions and determining nuanced functions of specific N-glycosylation. Our study, which used matrix-assisted laser desorption/ionization (MALDI) mass spectrometry imaging (MSI) combined with co-detection by indexing (CODEX) to reveal the cellular origin of N-glycans, is a significant step in this direction. This innovative technological combination enabled us to detect and differentiate N-glycans located in the vicinity of cells surrounding airways and blood vessels, parenchyma, submucosal glands, cartilage, and smooth muscles. The potential impact of our findings on future research is immense. For instance, our algorithm for grouping N-glycans based on their functional chemical features, combined with identifying group niches, paves the way for targeted studies. We found that fucosylated N-glycans are dominant around immune cells, tetra antennary N-glycans in the cartilage, high-mannose N-glycans surrounding the bronchus originate from associated collagenous structures, complex fucosylated-tetra antennary-polylactosamine N-glycans are spread over smooth muscle structures and in epithelial cells surrounding arteries, and N-glycans with Hex:6 HexNAc:6 compositions, which, according to our algorithm, can be ascribed to either tetra antennary or bisecting N-glycan, are highly abundant in the parenchyma. The findings suggest cell or region-specific functions for these localized glycan structures.

biochemistry↗