Currently we are investigating the details of gene copy number variations in human autoimmune, neurological and infectious diseases. We are funded by the NIH to study the genetic and clinical risk factors of human systemic lupus erythematosus (SLE). We are a member of the Ohio SLE Study Group that consists of four research teams headed by Dr. Lee Hebert, Dr. Brad Rovin, Dr. Dan Birmingham and Dr. Chack-Yung Yu.
Our laboratory is specialized in molecular genetic analyses of human complex diseases. Our lab is recognized for the characterization of the RCCX modules and gene copy number variations of human complement components C4A and C4B. We apply a variety of genotyping and phenotyping techniques in our research projects, which include real-time PCR, genomic restriction fragment length polymorphism, DNA sequencing, pulsed field gel electrophoresis, immunofixation, immunodiffusion and flow cytometry.
Proessor, Department of Pediatrics, Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University
1991–present
Faculty Member, Molecular, Cellular and Development Biology Program, The Ohio State University
1990–present
Principal Investigator, The Research Institute at Nationwide Children's Hospital
1996–2006
Associate Professor, Department of Pediatrics, Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University
1990–1996
Assistant Professor, Pediatrics, Medical Microbiology and Immunology, The Ohio State University
1987–1990
Research Fellow and Non-Clinical Scientific Staff, MRC Laboratory of Molecular Biology, Cambridge,U.K. (with Dr. Cesar Milstein, Nobel laureate, C.H., F.R.S.)
1983–1987
Research Student, Medical Research Council (MRC) Immunochemistry Unit, Oxford University (with the late Prof. Rodney R. Porter, Nobel laureate, C.H., F.R.S. and Dr. R. Duncan Campbell)
Lessard CJ; Adrianto I; Kelly JA; Kaufman KM; Grundahl KM; Adler A; Williams AH; Gallant CJ; Anaya JM; Bae SC; Boackle SA; Brown EE; Chang DM; Criswell LA; Edberg JC; Freedman BI; Gregersen PK; Gilkeson GS; Jacob CO; James JA; Kamen DL; Kimberly RP; Martin J; Merrill JT; Niewold TB; Park SY; Petri MA; Pons-Estel BA; Ramsey-Goldman R; Reveille JD; Song YW; Stevens AM; Tsao BP; Vila LM; Vyse TJ; Yu CY; Guthridge JM; Bruner GR; Langefeld CD; Montgomery C; Harley JB; Scofield RH; Gaffney PM; Moser KL. 2011. Identification of a systemic lupus erythematosus susceptibility locus at 11p13 between PDHX and CD44 in a multiethnic study.American Journal Of Human Genetics. Vol. 88, no. 1. (January 7): 83.
Atkinson, J.P. and Yu, C.Y. 2011. Genetic Susceptibility and Class III complement Genes. In Systemic Lupus Erythematosus. Fifth ed. Edited by Lahita,R.G., Tsokos,G., Buyon,J., Koike,T. Amsterdam: Academic Press at Elsevier. 21-45.
Shen N; Fu Q; Deng Y; Qian X; Zhao J; Kaufman KM; Wu YL; Yu CY; Tang Y; Chen JY; Yang W; Wong M; Kawasaki A; Tsuchiya N; Sumida T; Kawaguchi Y; Howe HS; Mok MY; Bang SY; Liu FL; Chang DM; Takasaki Y; Hashimoto H; Harley JB; Guthridge JM; Grossman JM; Cantor RM; Song YW; Bae SC; Chen S; Hahn BH; Lau YL; Tsao BP. 2010. Sex-specific association of X-linked Toll-like receptor 7 (TLR7) with male systemic lupus erythematosus.Proceedings Of The National Academy Of Sciences Of The United States Of America. Vol. 107, no. 36. (September 7): 15838.
Wu H; Boackle SA; Hanvivadhanakul P; Ulgiati D; Grossman JM; Lee Y; Shen N; Abraham LJ; Mercer TR; Park E; Hebert LA; Rovin BH; Birmingham DJ; Chang DM; Chen CJ; McCurdy D; Badsha HM; Thong BY; Chng HH; Arnett FC; Wallace DJ; Yu CY; Hahn BH; Cantor RM; Tsao BP. 2007. Association of a common complement receptor 2 haplotype with increased risk of systemic lupus erythematosus.Proceedings Of The National Academy Of Sciences Of The United States Of America. Vol. 104, no. 10. (March 6): 3961.
Birmingham DJ, Irshaid F, Gavit KF, Nagaraja HN, Yu CY, Rovin BH and Hebert LA. 2007. (2007) A polymorphism in the type one complement receptor (CR1) adds a cysteine in the C3b/C4b binding domain that inhibits ligand binding. Molecular Immunology. Vol. 44: 3510-3516.
Wang L, Lin S, Rammohan KW, Liu Z, Liu J-Q, Liu R-H, Guinther N, Lima J, Shou Q, Wang T, Zheng X, Birmingham DJ, Rovin BH, Hebert LA, Wu Y, Lynn DJ, Cooke G, Yu CY, Zheng P, Liu Y. 2007. (2007) A di-nucleotide deletion in CD24 confers protection against autoimmune diseases. PLoS Genetics. Vol. 3: 49e1-49e10.
Yu CY, Hauptmann G, Yang Y, Wu L, Birmingham DJ, Rovin BH, Herbert LA. 2007. Complement deficiencies in human systemic lupus erythematosus (SLE) and SLE nephritis: epidemiology and pathogenesis. In Systemic Lupus Erythematosus: a Companion to Rheumatology. Edited by Tsokos GC, Gordon C, Smolen JS. Philadelphia, PA: Elsevier.
Kiszel P, Kovacs M, Szalai C, Yang Y, Pozsonyi E, Blasko B, Laki J, Prohaszka Z, Fazakas A, Panczel P, Hosszufalusi N, Rajczy K, Wu YL, Chung EK, Zhou B, Blanchong CA, Vatay A, Yu CY, Fust G. 2007. Frequency of carriers of 8.1 ancestral haplotype and its fragments in two Caucasian populations. Immunological Investigations. Vol. 36: 307-319.
Birmingham DJ, Rovin BH, Shidham G, Nagaraja HN, Zou X, Bissell M, Yu CY, Hebert LA. 2007. Spot urine protein/creatinine ratio is an unreliable estimate of 24-hr proteinuria in most SLE nephritis flares. Kidney International. Vol. 72: 865-870.
Chung, E.K., Wu, Y.L., Yang, Y., Zhou, B. and Yu, C.Y. 2005. Human complement components C4A and C4B: complex genotypes and phenotypes. In Current Protocols in Immunology. Edited by Coligan, J.E., Bierer, B.E., Margulis, D.H., Shevach, E.M. and Strober, W. Edison, NJ: John Wiley & Sons, Inc. 13.8.1-13.8.36.
Yang, Y., Chung, E.K., Lhotta, K., Wu, Y.L., Higgins, G.C., Rennebohm, R.M., Hebert, L.A., Birmingham, D.J., Rovin, B.H., and Yu, C.Y. 2005. Complement components C4A and C4B in human lupus. In Molecular Autoimmunity. Edited by Zouali, M. New York, USA: Springer. 85-99.
Yang, Y., Chung, E.K., Zhou, B., Lhotta, K., Hebert, L.A., Birmingham, D.J., Rovin, B.H. and Yu, C.Y. 2004. The intricate role of complement component C4 in human SLE. In Current Directions in Autoimmunity. Vol. 7. Edited by Tsokos, G.C. Basel: Karger. 98-132.
Yu, C.Y. and Whitacre, C.C. 2004. Sex, MHC and complement C4 in autoimmune diseases. Trends Immunol.. Vol. 25. : 694-699.
Yu, C.Y., Blanchong, C.A., Chung, E.K., Rupert, K.L., Yang, Y., Yang, Z., Zhou, B. and Moulds, J.M. 2002. Molecular genetic analyses of human complement components C4A and C4B. In Manual of Clinical Laboratory Immunology. Sixth ed. Edited by Rose, N.R., Hamilton,R.G., Detrick,B. Washington,D.C.: American Society for Microbiology Press. 117-131.
Blanchong, C.A., Chung, E.,Yang, Y. and Yang, Z., Moulds, J.M., and Yu, C.Y. 2001. Genetic, structural and functional diversities of human complement components C4A and C4B and their mouse homologues, Slp and C4. Int. Immunopharmacol.. Vol. 1. : 365-392.
Yang, Z., Qu, X. and Yu, C.Y. 2001. Features of the two gene pairs RD-SKI2W and DOM3Z-RP1 located between complement component genes factor B and C4 at the MHC class III region. Front. Bioscience. Vol. 6. : d927-d935.
Yu, C.Y. 1998. Molecular genetics of the MHC complement gene cluster. Exp. Clin. Immunogenet.. Vol. 15. : 213-230.
Calabi, F., Yu, C.Y., Bilsland, C.A. and Milstein, C. 1991. CD1: From structure to function. In Current Concepts in Immunogenetics. Edited by Srivastava, R., Ram, B.P. and Tyle, P. New York: VCH Publishers Inc. 215-243.
Yu, C, Y; Campbell, R D. 1987. Definitive RFLPs to distinguish between the human complement C4A/C4B isotypes and the major Rodgers/Chido determinants: application to the study of C4 null alleles. Immunogenetics. Vol. 25, no. 6: 383-90.
Yu CY; Campbell RD. 1987. Sau 3AI polymorphism of human complement C4 and C4d region. Biochem Soc Trans. Vol. 5. : 654-655.
Carroll, M.C., Palsdottir, A., Belt, K.T., and Yu, C.Y. 1986. Molecular genetics of the fourth component of human complement. Biochem. Soc. Symp.. Vol. 51. : 29-36.
Belt, K, T; Yu, C, Y; Carroll, M, C; Porter, R R. 1985. Polymorphism of human complement component C4. Immunogenetics. Vol. 21, no. 2: 173-80.
Dr Chack-Yung Yu. 2000. The Human and Mouse MHC class III region. Presented at OSU Immunology Seminar. Columbus, Ohio. (February 15)
Dr Chack-Yung Yu. 1998. Genetics and evolution on the MHC-linked complement gene cluster: from C2 to TNX. Presented at VIIth Complement Genetics Workshop and Conference. Mainz, Germany. (May 15)
Dr Chack-Yung Yu. 2001. Type I Diabetes. Presented at Guest Lecturer, Otterbein College. Columbus, Ohio. (February 15)
Dr Chack-Yung Yu. 2004. . Presented at 1st International Congress in Clinical and Basic Immunogenomics. Budapest, Hungary. (October 3)
Dr Chack-Yung Yu. 1999. C4, HERV-K(C4) and primate evolution. Presented at Centre for Molecular Immunology and Instrumentation Retreat. Perth, Australia. (July 15)