In the last decade, single-cell RNA sequencing routinely performed on large numbers of single cells has greatly advanced our understanding of the underlying heterogeneity of complex biological systems. Technological advances have also enabled protein measurements, further contributing to the elucidation of cell types and states present in complex tissues. Recently, there have been independent advances in mass spectrometric techniques bringing us one step closer to characterizing single-cell proteomes. Here we discuss the challenges of detecting proteins in single cells by both mass spectrometry and sequencing-based methods. We review the state of the art for these techniques and propose that there is a space for technological advancements and complementary approaches that maximize the advantages of both classes of technologies.
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http://dx.doi.org/10.1038/s41592-023-01791-5 | DOI Listing |
J Struct Biol
January 2025
Postgraduate Program in Industrial Biotechnology, Tiradentes University, Aracaju, Sergipe, Brazil; Department of Morphology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil. Electronic address:
Cry proteins, commonly found in gram-positive soil bacteria, are used worldwide as aerial sprays or in transgenic plants for controlling crop pest populations and as insect vectors. Via PCR analysis, a spore producing soil isolate (BV5) was speculated to encode a Cry gene. Partial nucleotide sequence of the amplified PCR fragment showed homology with the Cry8 genes present in GenBank.
View Article and Find Full Text PDFProg Lipid Res
January 2025
Lipids in Human Pathology, Institut d'Investigació Sanitària Illes Balears (IdISBa) - Health Research Institute of the Balearic Islands, Ctra. Valldemossa 79, Module G, Floor -1, E-07120 Palma, Balearic Islands, Spain; Research Unit, University Hospital Son Espases, Ctra Valldemossa 79, E-07120 Palma, Balearic Islands, Spain. Electronic address:
Lipid imaging mass spectrometry (LIMS) allows for establishing the bidimensional distribution of lipid species within a tissue section. One of the main advantages is the generation of spatial information on lipid species distribution at a spatial (lateral) resolution bordering on single-cell resolution with no need to isolate cells. Thus, LIMS images demonstrate, with a level of detail never described before, that lipid profiles are highly sensitive to cell type and pathophysiological state.
View Article and Find Full Text PDFSci Total Environ
January 2025
Chemistry Matters, Calgary, Canada; Mount Royal University, Calgary, Canada.
This review follows the PRISMA guidelines to provide a systematic review of 115 peer reviewed articles that used non-targeted analysis (NTA) methods to detect per- and polyfluoroalkylated substances (PFAS). This literature highlights the significant positive impact of NTA in understanding PFAS in the environment. Within the literature a geographical bias exists, with most NTA studies (∼60 %) conducted in the United States and China.
View Article and Find Full Text PDFCarbohydr Res
January 2025
College of Biology Pharmacy and Food Engineering, Shangluo University, Shangluo, Shaanxi, 726000, PR China. Electronic address:
A novel glucomannan, named ATSW-1, was obtained from Allii Tuberosi Semen by ion and gel permeation chromatography purification. Its structure was characterized using high-performance chromatography, Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry, and nuclear magnetic resonance spectroscopy. The in vitro immune activities of ATSW-1 were examined using the Cell Counting Kit-8, the neutral red phagocytosis assay, and the secretion of related cytokines.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
Institute of Chemical Technology, Vietnam Academy of Science and Technology, 1A TL29 Street, Thanh Loc Ward, District 12, HCM City, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay District, Hanoi, Viet Nam. Electronic address:
Whole-cell bioreactors equipped with external physico-chemical sensors have gained attention for real-time toxicity monitoring. However, deploying these systems in practice is challenging due to potential interference from unknown wastewater constituents with liquid-contacted sensors. In this study, a novel approach using a bioreactor integrated with a non-dispersive infrared CO₂ sensor for both toxicity detection and real-time monitoring of microbial growth phases was successfully demonstrated.
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