Christopher Lyon, PhD

Research Assistant Professor

School of Medicine
Department
Hu Lab
Biochemistry Molecular Biology
Christopher Lyon

Biography

The mission of the Center for Molecular and Cell Diagnostics at Tulane University is to develop and validate integrated platforms that can detect and quantitate non-invasive biomarkers to rapidly and accurately diagnose important chronic and acute disease conditions caused by bacterial and viral infections, cancer, and tissue injury. Our goal is to develop and validate assays that can be used for early disease diagnosis to reduce missed or delayed diagnoses and for real-time treatment monitoring to permit rapid assessment of treatment effectiveness. This proposal will employ a CRISPR-enhanced reverse transcriptase recombinase polymerase amplification (RT-RPA) assay to measure SARS-CoV-2 target region in circulating exosomes to allow rapid and streamlined diagnosis of COVID-19 cases throughout infection. My role in this project will be to assist in the development of standard operating procedures for the production and use of materials employed in this assay. I believe that my experience with the development of exosome assays, including a related grant developing a blood-based exosome assay to diagnose tuberculosis, and my experience operating a biomarker analysis core service that supported two pharmocogenetic studies and a Diabetes Endocrinology Research Center (DERC) grant has provided a strong background for the responsibilities that I will assume in this grant.

Our Center’s research focuses on developing and validating the integrated nanotechnique-based strategies to perform marker discovery and molecular diagnostics from peripheral blood, and to provide a translatable solution for personalized medicine.

Select Publications

Huang Z, Tian D, Liu Y, Lin Z, Lyon CJ, Lai W, Fusco D, Drouin A, Yin X, Hu T, Ning B. (2020) Ultra-sensitive and high-throughput CRISPR-powered COVID-19 diagnosis. Biosens Bioelectron. [doi: 10.1016/j.bios.2020. 112316.]

Amrollahi P, Rodrigues M, Lyon CJ, Goel A, Han H, Hu TY. (2019) Ultra-sensitive automated profiling of EpCAM expression on tumor-derived extracellular vesicles. Frontiers in Genetics. [doi: 10.3389/fgene .2019.01273]

Rodrigues M, Richards N, Ning B, Lyon CJ, Hu TY. (2019) Rapid lipid-based approach for normalization of quantum-dot-detected biomarker expression on extracellular vesicles in complex biological samples. Nano Letters. 19(11):7623-7631. [doi: 10.1021/acs.nanolett.9b02232]

Liang K, Liu F, Fan J, Sun D, Liu C, Lyon CJ, Bernard DW, Li Y, Yokoi K, Katz MH, Koay EJ, Zhao Z, Hu Y. (2017) Nanoplasmonic quantification of tumor-derived extracellular vesicles in plasma microsamples for diagnosis and treatment monitoring. Nat Biomed Eng. 1:0021. [doi: 10.1038/s41551-016-0021]

Contributions

  1.     Wan M, Amrollahi P, Sun D, Lyon C, Hu TY. (2019) Using nanoplasmon-enhanced scattering and low-magnification microscope imaging to quantify tumor-derived exosomes. J Vis Exp. 24 (147). [doi: 10.3791/59177]
  2.     Amrollahi P, Rodrigues M, Lyon CJ, Goel A, Han H, Hu TY. (2019) Ultra-sensitive automated profiling of EpCAM expression on tumor-derived extracellular vesicles. Frontiers in Genetics. [doi: 10.3389/fgene .2019.01273]
  3.     Rodrigues M, Richards N, Ning B, Lyon CJ, Hu TY. (2019) Rapid lipid-based approach for normalization of quantum-dot-detected biomarker expression on extracellular vesicles in complex biological samples. Nano Letters. 19(11):7623-7631. [doi: 10.1021/acs.nanolett.9b02232]
  4.     Liang K, Liu F, Fan J, Sun D, Liu C, Lyon CJ, Bernard DW, Li Y, Yokoi K, Katz MH, Koay EJ, Zhao Z, Hu Y. (2017) Nanoplasmonic quantification of tumor-derived extracellular vesicles in plasma microsamples for diagnosis and treatment monitoring. Nat Biomed Eng. 1:0021. [doi: 10.1038/s41551-016-0021]
  5.     Liu C, Lyon CJ, Bu Y, Deng Z, Walters E, Li Y, Zhang L, Hesseling AC, Graviss EA, Hu Y. (2018) Clinical Evaluation of a Blood Assay to Diagnose Paucibacillary Tuberculosis via Bacterial Antigens. Clinical Chemistry. 64(5):791-800.
  6.     Fan J, Zhang H, Nguyen DT, Lyon CJ, Mitchell CD, Zhao Z, Graviss EA, Hu Y. (2017) Rapid diagnosis of new and relapse tuberculosis by quantification of a circulating antigen in HIV-infected adults in the Greater Houston metropolitan area. BMC Medicine. 15(1):188.
  7.     Liu C, Zhao Z, Fan J, Lyon CJ, Wu HJ, Nedelkov D, Zelazny AM, Olivier KN, Cazares LH, Holland SM, Graviss EA, Hu Y. (2017) Quantification of circulating Mycobacterium tuberculosis antigen peptides allows rapid diagnosis of active disease and treatment monitoring. PNAS USA. 114(15): 3969-74.
  8.     Deng T, Liu J, Deng Y, Minze LJ, Xiao X, Wright V, Yu R, Li XC, Blasczcak A, Bergin S, DiSilvestro D, Judd R, Bradley D, Caligiuri MA, Lyon CJ, Hsueh WA. (2017) Adipocyte adaptive immunity mediates diet-induced adipose inflammation and insulin resistance by decreasing adipose Treg cells. Nat Comm. 8: article 15725.
  9.     Yin Z, Deng T, Peterson LE, Yu R, Lin J, Hamilton DJ, Reardon PR, Sherman V, Winnier GE, Zhan M, Lyon CJ, Wong ST, Hsueh WA. (2014) Transcriptome analysis of human adipocytes implicates the NOD-like receptor pathway in obesity-induced adipose inflammation. Mol Cell Endocrinol. 394(1-2): 80-7.
  10.     Deng T, Lyon CJ, Minze LJ, Lin J, Zou J, Liu JZ, Ren Y, Yin Z, Hamilton DJ, Reardon PR, Sherman V, Wang HY, Phillips KJ, Webb P, Wong ST, Wang RF, Hsueh WA. (2013) Class II major histocompatibility complex plays an essential role in obesity-induced adipose inflammation. Cell Metab. 17(3): 411-22.
  11.     Gupte AA, Liu JZ, Ren Y, Minze LJ, Wiles JR, Collins AR, Lyon CJ, Pratico D, Finegold MJ, Wong ST, Webb P, Baxter JD, Moore DD, Hsueh WA. (2010) Rosiglitazone attenuates age- and diet-associated nonalcoholic steatohepatitis in male low-density lipoprotein receptor knockout mice. Hepatology. 52(6): 2001-11.