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Dipeptidase-1 Is an Adhesion Receptor for Neutrophil Recruitment in Lungs and Liver


Saurav Roy Choudhury, Liane Babes, Jennifer J. Rahn, Bo-Young Ahn, Kimberly-Ann R. Goring, Jennifer C. King, Arthur Lau, Björn Petri, Xiaoguang Hao, Andrew K. Chojnacki, Ajitha Thanabalasuriar, Erin F. McAvoy, Sébastien Tabariès, Christoph Schraeder, Kamala D. Patel, Peter M. Siegel, Karen A. Kopciuk, David C. Schriemer, Daniel A. Muruve, Margaret M. Kelly, Bryan G. Yipp, Paul Kubes, Stephen M. Robbins, Donna L. Senger

  • Dipeptidase 1 (DPEP1) serves as a vascular adhesion molecule in lungs and liver
  • DPEP1 acts as a physical adhesion receptor independent of its dipeptidase activity
  • Targeting DPEP1 reduces mortality in murine models of sepsis

A hallmark feature of inflammation is the orchestrated recruitment ...

Renal immune surveillance and dipeptidase-1 contribute to contrast-induced acute kidney injury


Arthur Lau, Hyunjae Chung, Takanori Komada, Jaye M. Platnich, Christina F. Sandall, Saurav Roy Choudhury, Justin Chun, Victor Naumenko, Bas G.J. Surewaard, Michelle C. Nelson, Annegret Ulke-Lemée, Paul L. Beck, Hallgrimur Benediktsson, Anthony M. Jevnikar, Sarah L. Snelgrove, Michael J. Hickey, Donna L. Senger, Matthew T. James, Justin A. Macdonald, Paul Kubes, Craig N. Jenne, Daniel A. Muruve


Radiographic contrast agents cause acute kidney injury (AKI), yet the underlying pathogenesis is poorly understood. Nod-like receptor pyrin containing 3–deficient (Nlrp3-deficient) mice displayed reduced epithelial cell injury and inflammation in the kidney in a model of contrast-induced AKI ...

A peptide-based biological coating for enhanced corrosion resistance of titanium alloy biomaterials in chloride-containing fluids


Noah Muruve, Yuanchao Feng, Jaye Platnich, Daniel Hassett, Randall Irvin, Daniel Muruve, Frank Cheng


Titanium alloys are common materials in the manufacturing of dental and orthopedic implants. Although these materials exhibit excellent biocompatibility, corrosion in response to biological fluids can impact prosthesis performance and longevity. In this work, a PEGylated metal binding peptide (D-K122-4-PEG), derived from bacteria Pseudomonas aeruginosa, was applied on a titanium (Ti) alloy, and the corrosion resistance of the coated alloy specimen was investigated in simulated chloride-containing physiological fluids by electrochemical impedance spectroscopy and micro-electrochemical measurements, surface characterization, and biocompatibility testing. Compared to uncoated specimen, the D-K122-4-PEG-coated Ti alloy demonstrates decreased corrosion current density without affecting the natural passivity. Morphological ...

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