Department of Biomedical Sciences, SNU

Faculty

Faculty

Research

Research Field
The intestine is the site where the nutrients we intake get absorbed. The human intestine is home to ~100 trillion bacteria which promote digestion of foods and regulate metabolism. Although these bacteria provide us with important benefits, they can also cause many diseases such as infectious diseases and inflammatory diseases. This happens if the immune system fails to prevent the bacteria from invading our cells or when the immune system overreacts to intestinal bacteria. 
In the Bang lab, we study how host immune cells, microbes, and nutrients interact in the intestine to maintain the beneficial host-microbe relationship. We use interdisciplinary approaches of biochemistry, immunology, microbiology, cell biology, molecular biology, and genetics combined with various mouse models. Our goal is to understand the mechanisms regulating the host-microbe interactions and to find new roles of nutrients in regulating the interactions. Our mission is to find better ways to prevent and treat the diseases caused by the dysregulated host-microbe relationship.
Keyword
Host-microbe interaction, Pathogen, Nutritional immunology
Intensive Major

Publication

  1. Bang, Y-J., Hu, Z., Li, Y., Gattu, S., Ruhn, K.A., Raj, P., Herz, J., and Hooper, L.V. 2021. Serum amyloid A delivers retinol to intestinal myeloid cells to promote adaptive immunity. Science 373:eabf9232
  2. Hu, Z.*, Bang, Y-J.*, Ruhn, K.A., and Hooper, L.V. 2019. Molecular basis of retinol binding by serum amyloid A during infection. Proc. Natl. Acad. Sci. USA. 116(38):19077-19082. (* equal contribution) 
  3. Gattu, S., Bang, Y-J., Pendse, M., Dende, C., Chara, A. L., Harris, T. A., Wang, Y., Ruhn, K.A., Kuang, Z., Sockanathan, S., and Hooper, L. V. 2019. Epithelial retinoic acid receptor β regulates serum amyloid A expression and vitamin A-dependent intestinal immunity. Proc. Natl. Acad. Sci. USA. 116(22):10911-10916.
  4. Bang, Y-J., Lee, Z.-W., Kim, D., Jo, I.-S., Ha, N.-C., and Choi, S. H. 2016. OxyR2 Functions as a three-state redox switch to tightly regulate production of Prx2, a peroxiredoxin of Vibrio vulnificus. J. Biol. Chem. 291:16038-16047.
  5. Kim, S. Y.*, Bang, Y-J. *, Kim, D., Lim, J. G., Oh, M. H., and Choi, S. H. 2014. Distinct characteristics of OxyR2, a new OxyR-type regulator, ensuring expression of Peroxiredoxin 2 detoxifying low levels of hydrogen peroxide in Vibrio vulnificus. Mol. Microbiol. 93:992-1009. (*equal contribution)
  6. Bang, Y-J.*, Oh, M. H.*, and Choi, S. H. 2012. Distinct characteristics of two 2-Cys peroxiredoxins of Vibrio vulnificus suggesting differential roles in detoxifying oxidative stress. J. Biol. Chem. 287:42516-42524. (* equal contribution)"