A photo of Gregory Tiao.

Greg M. Tiao, MD

  • Director, Division of General and Thoracic Surgery
  • Frederick C. Ryckman Chair in Pediatric Surgery
  • Surgical Director, Liver Transplantation
  • Program Director, Pediatric Surgery Fellowship
  • Professor, UC Department of Surgery
  • UC Department of Pediatrics
While working with patients has been a major focus, I also have established and contributed to bench and clinical research programs developing new treatment strategies to improve outcomes in the care of children afflicted with chronic liver disease and liver tumors.



During my training, I cared for several infants with biliary atresia — one of them requiring a liver transplantation to survive. The infants and their families had to go through so much with very little understanding of why the disease occurred. I decided to focus on this disease process, pursuing both pediatric surgery and transplant training so I could care for a child with biliary atresia from diagnosis through liver transplantation, when necessary.

As a pediatric and pediatric abdominal transplant surgeon, my focus is on hepatobiliary (liver and biliary system) disease, pediatric surgical oncology (especially liver tumors) and solid organ transplantation. While working with patients has been a major focus, I also have established and contributed to bench and clinical research programs developing new treatment strategies to improve outcomes in the care of children afflicted with chronic liver disease and liver tumors. Because of these programs, we use the most cutting-edge approaches in the treatment algorithms of patients.

In my bench research program, we are seeking to understand the pathogenic basis of biliary atresia. From a clinical research standpoint, I developed and lead an international clinical research trial focused on the liver tumors hepatoblastoma and hepatocellular carcinoma. With this information, we hope to develop new treatment strategies to alter the disease course and reduce the need for liver transplantation.

I hold the honorary chair named after the founder of the liver transplantation program at Cincinnati Children's, Dr. Frederick C. Ryckman. I speak Mandarin and my last name in Chinese is derived from the character used to describe a knife, which is quite appropriate!

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T-Bet Deficiency Attenuates Bile Duct Injury in Experimental Biliary Atresia. Mohanty, SK; Donnelly, B; Temple, H; Bondoc, A; McNeal, M; Tiao, G. Cells. 2021; 10.

Small Cell Undifferentiated Histology Does Not Adversely Affect Outcome in Hepatoblastoma: A Report From the Children's Oncology Group (COG) AHEP0731 Study Committee. Trobaugh-Lotrario, A; Katzenstein, HM; Ranganathan, S; Lopez-Terrada, D; Krailo, MD; Piao, J; Chung, N; Randazzo, J; Malogolowkin, MH; Furman, WL; et al. Journal of Clinical Oncology. 2021.

Identification of distinct tumor cell populations and key genetic mechanisms through single cell sequencing in hepatoblastoma. Bondoc, A; Glaser, K; Jin, K; Lake, C; Cairo, S; Geller, J; Tiao, G; Aronow, B. Communications Biology. 2021; 4.

Bridge to Heart-Liver Transplantation With a Ventricular Assist Device in the Fontan Circulation. Villa, CR; Lorts, A; Kasten, J; Chin, C; Alsaied, T; Tiao, G; Nathan, JD; Peters, AL; Misfeldt, AM; Vranicar, M; et al. Circulation: Heart Failure. 2021; 14.

Doxorubicin in combination with cisplatin, 5-flourouracil, and vincristine is feasible and effective in unresectable hepatoblastoma: A Children's Oncology Group study. Katzenstein, HM; Malogolowkin, MH; Krailo, MD; Piao, J; Towbin, AJ; McCarville, MB; Tiao, GM; Dunn, SP; Langham, MR; McGahren, ED; et al. Cancer. 2021.

Single incision laparoscopic lysis of adhesions. Pulliam, K; Grisotti, G; Tiao, G. Journal of Pediatric Surgery Case Reports. 2021; 74.

Isolation and Culturing Primary Chaolangiocytes from Mouse Liver. Kudira, R; Sharma, BK; Mullen, M; Mohanty, SK; Donnelly, B; Tiao, GM; Miethke, A. Bio-protocol. 2021; 11.

Olaparib Inhibits Tumor Growth of Hepatoblastoma in Patient-Derived Xenograft Models. Johnston, ME; Rivas, MP; Nicolle, D; Gorse, A; Gulati, R; Kumbaji, M; Weirauch, MT; Bondoc, A; Cairo, S; Geller, J; et al. Hepatology. 2021; 74:2201-2215.

10 Year Analysis of Pediatric Surgery Fellowship Match and Operative Experience: Concerning Trends?. Farooqui, Z; Cortez, AR; Potts, JR; Tiao, GM; von Allmen, D; Quillin, RC; Bondoc, AJ; Garrison, AP. Annals of Surgery. 2021.

Operational tolerance after pediatric composite liver-pancreas-intestine transplantation following severe graft-versus-host disease. Osborn, J; Nathan, JD; Tiao, G; Alonso, M; Kocoshis, S. Pediatric Transplantation. 2021; 25.

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