Kerwin Kwek Zeming, Ri Lu, Elizabeth Lee, Ka‐Wai Cheung, Nicholas W. S. Chew, Kai Lee Woo, Lih Feng Cheow, Jongyoon Han, Shir Lynn Lim
{"title":"Ex vivo single‐cell profiling of acute myocardial infarction patients reveals disproportionate CD66b+ cell secretion response","authors":"Kerwin Kwek Zeming, Ri Lu, Elizabeth Lee, Ka‐Wai Cheung, Nicholas W. S. Chew, Kai Lee Woo, Lih Feng Cheow, Jongyoon Han, Shir Lynn Lim","doi":"10.1002/btm2.70043","DOIUrl":null,"url":null,"abstract":"Acute myocardial infarction (AMI), a leading cause of death globally, triggers complex inflammatory responses critical to patient outcomes. However, rapid tools for profiling immune responses at the single‐cell level are lacking. The integrated Single‐cell Enzyme and Antigen Quantification (iSEAQ) system addresses this gap by enabling high‐throughput, single‐cell analysis of immune cell activity using just 20 μL of blood. This novel tool processes live CD66b and CD3 cells to quantify the secretion of Granzyme B, Neutrophil Elastase, and CD31 within minutes. Longitudinal studies on nine AMI patients revealed that CD66b<jats:sup>+</jats:sup> cells are major contributors (up to 95%) to key inflammatory enzymes, including the unexpected secretion of Granzyme B. iSEAQ achieves unparalleled sensitivity (0.4 fg/cell) and predictive accuracy (>90%) for patient profiling across AMI onset, treatment, and discharge. This innovation provides clinicians with a rapid, precise method to monitor immune responses, unveiling new insights into AMI inflammation and therapy.","PeriodicalId":9263,"journal":{"name":"Bioengineering & Translational Medicine","volume":"43 1","pages":""},"PeriodicalIF":6.1000,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioengineering & Translational Medicine","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/btm2.70043","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Acute myocardial infarction (AMI), a leading cause of death globally, triggers complex inflammatory responses critical to patient outcomes. However, rapid tools for profiling immune responses at the single‐cell level are lacking. The integrated Single‐cell Enzyme and Antigen Quantification (iSEAQ) system addresses this gap by enabling high‐throughput, single‐cell analysis of immune cell activity using just 20 μL of blood. This novel tool processes live CD66b and CD3 cells to quantify the secretion of Granzyme B, Neutrophil Elastase, and CD31 within minutes. Longitudinal studies on nine AMI patients revealed that CD66b+ cells are major contributors (up to 95%) to key inflammatory enzymes, including the unexpected secretion of Granzyme B. iSEAQ achieves unparalleled sensitivity (0.4 fg/cell) and predictive accuracy (>90%) for patient profiling across AMI onset, treatment, and discharge. This innovation provides clinicians with a rapid, precise method to monitor immune responses, unveiling new insights into AMI inflammation and therapy.
期刊介绍:
Bioengineering & Translational Medicine, an official, peer-reviewed online open-access journal of the American Institute of Chemical Engineers (AIChE) and the Society for Biological Engineering (SBE), focuses on how chemical and biological engineering approaches drive innovative technologies and solutions that impact clinical practice and commercial healthcare products.