{
  "id": 12634077,
  "title": "Comparative proteomic quantification reveals novel longevity regulators",
  "url": "https://urgent.news/2026/10/07/comparative-proteomic-quantification-reveals-novel-longevity",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-07T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.06.757189v1?rss=1"
  },
  "original_language": "en",
  "account": "Proteomics, a powerful method for examining the protein landscape of cellular and physiological processes, has gained significant advancements through techniques like tandem-mass-tags (TMT) isobaric labeling-based proteomics, label-free quantification (LFQ) with data-dependent-acquisition (DDA) or data-independent acquisition (DIA)-based proteomics, and stable isotope labeling with amino acids (SILAC) spike-in-assisted proteomics. These five methods offer unique advantages in terms of coverage, throughput, and quantitative reproducibility.\n\nIn a recent study, researchers utilized these five quantitative proteomic methods as distinct, orthogonal approaches. By comparing the protein candidates that showed significant, consistently changing patterns across multiple independently instrumented techniques, they identified high-confidence protein-level changes associated with longevity. This systematic cross-method comparison provided a comprehensive systems-view of proteomic alterations linked to longevity.\n\nThe study focused on the insulin/insulin-like growth factor signaling (IIS) pathway, a highly conserved longevity regulatory mechanism found in organisms ranging from the nematode Caenorhabditis elegans to humans. By conducting genetic screening in C. elegans mutants and quantitatively profiling their protein changes, the researchers unveiled new longevity regulators. This exhaustive comparison of multiple proteomic methods not only offers a valuable resource for selecting the most suitable quantitative proteomics approach but also serves as a robust framework for understanding the intricate mechanisms underlying aging and longevity.",
  "summary": "Proteomics is a powerful tool for profiling the protein landscape underlying cellular and physiological processes. Advances in mass spectrometry-based methods, such as tandem-mass-tags (TMT) isobaric labeling-based proteomics at both MS2 and MS3, label-free quantification (LFQ) with data-dependent-acquisition (DDA) or data-independent acquisition (DIA)-based proteomics, and stable isotope…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}