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Microfluidics is the advanced microtechnology of fluid manipulation in channels with at least one dimension in the range of 1-100 microns. Microfluidic technology offers a growing number of tools for manipulating small volumes of fluid to control chemical, biological, and physical processes relevant to separation, analysis, and detection. Currently, microfluidic devices play an important role in many biological, chemical, physical, biotechnological and engineering applications. There are numerous ways to fabricate the necessary microchannels and integrate them into microfluidic platforms. In peptidomics and proteomics, microfluidics is often used in combination with mass spectrometric (MS) analysis. This review provides an overview of using microfluidic systems for peptidomics, proteomics and cell analysis. The application of microfluidics in combination with MS detection and other novel techniques to answer clinical questions is also discussed in the context of disease diagnosis and therapy. Recent developments and applications of capillary and microchip (electro)separation methods in proteomic and peptidomic analysis are summarized. The state of the art of microchip platforms for cell sorting and single-cell analysis is also discussed. Advances in detection methods are reported, and new applications in proteomics and peptidomics, quality control of peptide and protein pharmaceuticals, analysis of proteins and peptides in biomatrices and determination of their physicochemical parameters are highlighted.
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http://dx.doi.org/10.3390/nano11051118 | DOI Listing |
PLoS Pathog
September 2025
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.
Neuroinflammation within the central nervous system (CNS) is recognized as a critical pathological process in meningitic Escherichia coli (E. coli) infection, leading to severe neurodegenerative disorders and long-term sequelae. Astrocyte reactivity plays a pivotal role in driving the neuroinflammatory cascade in response to pathological stimuli from peripheral sources or other cellular components of the CNS.
View Article and Find Full Text PDFCancer Res
September 2025
University of Southern Denmark, Odense, Denmark.
Triple-negative breast cancer (TNBC) is a particularly aggressive subtype of breast cancer with high metastatic potential, limited treatment options, and low patient survival rates. By combining functional proteomics and genomics approaches, we identified an oncogenic transcriptional network in mesenchymal and invasive TNBC involving the glucocorticoid receptor (GR), GATA6, MYC, and AP-1 transcription factors. Although these transcription factors bound extensively to shared enhancers, they utilized different enhancer repertoires from this shared enhancer pool to drive distinct downstream oncogenic pathways.
View Article and Find Full Text PDFJ Proteome Res
September 2025
Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, Washington 98195, United States.
Retinol binding protein 4 (RBP4), the circulating carrier of retinol, complexes with transthyretin (TTR) and is a potential biomarker of cardiometabolic disease. However, RBP4 quantitation relies on immunoassays and Western blots without retinol and TTR measurement. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the simultaneous absolute quantitation of circulating RBP4 and TTR is critical to establishing their biomarker potential.
View Article and Find Full Text PDFInt J Surg
September 2025
Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Background: The pathophysiological changes driving incident kidney cancer remain unclear. This study aimed to identify protein biomarkers and underlying mechanisms using pre-diagnostic plasma proteomics.
Materials And Methods: Among 48,851 UK Biobank participants, 165 were diagnosed with kidney cancer, and 2,911 plasma proteins were analyzed.
J Periodontal Res
September 2025
Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway.
Aims: To compare the early wound-healing responses to crosslinked hyaluronic acid enriched with two proline-rich peptides (P2, P6) against unmodified hyaluronic acid and the enamel-matrix derivative (EMD) in a porcine gingival-detachment model.
Methods: In six pigs, defects around premolars were treated with HA, HA + P2, HA + P6 or EMD. After 6 days, the sites were harvested and evaluated using histology, immunohistochemistry, multiplex cytokine assay and untargeted proteomics of the gels, which were examined, informing an integrated multiomics approach analysis.