Broad spectrum immunomodulation using biomimetic blood cell margination for sepsis therapy

Han Wei Hou, Lidan Wu, Diana P. Amador-Munoz, Miguel Pinilla Vera, Anna Coronata, Joshua A. Englert, Bruce D. Levy, Rebecca M. Baron, Jongyoon Han

Research output: Contribution to journalResearch Articlepeer-review

20 Scopus citations


Sepsis represents a systemic inflammatory response caused by microbial infection in blood. Herein, we present a novel comprehensive approach to mitigate inflammatory responses through broad spectrum removal of pathogens, leukocytes and cytokines based on biomimetic cell margination. Using a murine model of polymicrobial sepsis induced by cecal ligation and puncture (CLP), we performed extracorporeal blood filtration with the developed microfluidic blood margination (μBM) device. Circulating bacteremia, leukocytes and cytokines in blood decreased post-filtration and significant attenuation of immune cell and cytokine responses were observed 3-5 days after intervention, indicating successful long-term immunomodulation. A dose-dependent effect on long-term immune cell count was also achieved by varying filtration time. As proof of concept for human therapy, the μBM device was scaled up to achieve ∼100-fold higher throughput (∼150 mL h-1). With further multiplexing, the μBM technique could be applied in clinical settings as an adjunctive treatment for sepsis and other inflammatory diseases.

Original languageEnglish (US)
Pages (from-to)688-699
Number of pages12
JournalLab on a Chip
Issue number4
StatePublished - 2016

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biochemistry
  • General Chemistry
  • Biomedical Engineering


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