Volume 34, Issue 10 pp. 1727-1735
Clinical Gastroenterology

ZNF133 is associated with infliximab responsiveness in patients with inflammatory bowel diseases

Eun Suk Jung

Eun Suk Jung

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

E.S. Jung and K. Choi contributed equally to this study.Search for more papers by this author
Ko-woon Choi

Ko-woon Choi

Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Cheongju, Korea

E.S. Jung and K. Choi contributed equally to this study.Search for more papers by this author
Seung Won Kim

Seung Won Kim

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

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Matthias Hübenthal

Matthias Hübenthal

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

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Sören Mucha

Sören Mucha

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

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Jihye Park

Jihye Park

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

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Zewon Park

Zewon Park

Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Cheongju, Korea

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David Ellinghaus

David Ellinghaus

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

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Stefan Schreiber

Stefan Schreiber

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

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Andre Franke

Andre Franke

Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany

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Woo Yong Oh

Corresponding Author

Woo Yong Oh

Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Cheongju, Korea

Correspondence

Dr Jae Hee Cheon, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

Woo Yong Oh, Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Cheongju 28159, Korea.

Email: [email protected]

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Jae Hee Cheon

Corresponding Author

Jae Hee Cheon

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea

Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea

Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea

Correspondence

Dr Jae Hee Cheon, Department of Internal Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.

Email: [email protected]

Woo Yong Oh, Clinical Research Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Cheongju 28159, Korea.

Email: [email protected]

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First published: 09 March 2019
Citations: 10
Declaration of conflict of interest: The authors declare that they have no conflicts of interest.
Financial support: This work was supported by the Ministry of Food and Drug Safety of Republic of Korea (16181MFDS446).

Abstract

Background and Aim

Infliximab has been widely prescribed for treating inflammatory bowel disease (IBD). However, the response rates to infliximab differ among patients. Therefore, we aimed to identify the genetic and clinical markers that predict infliximab response.

Methods

A total of 139 Korean patients with IBD who received infliximab were classified according to infliximab response as follows: (i) primary response vs nonresponse and (ii) sustained response vs loss of response. We performed an association study using whole-exome sequencing data to identify genetic variants associated with infliximab response. Candidate variants were validated in 77 German patients with IBD. Stepwise multivariate logistic regression was performed to identify predictors.

Results

We found five candidate variants that were associated with primary nonresponse to infliximab (P < 5 × 10−6). Of the five variants, rs2228273 in ZNF133 was validated in German (combined P = 6.49 × 10−7). We also identified the best genetic variant (rs9144, P = 4.60 × 10−6) associated with the loss of infliximab response. In multivariate regression analysis, rs2228273 (P = 2.10 × 10−5), concurrent azathioprine/6-mercaptopurine use, and bodyweight at the first infliximab use (< 50 kg) were associated with primary nonresponse. In addition, the Crohn's disease activity index at the first infliximab use and rs9144 (P = 0.001) were independently associated with the loss of response in patients with Crohn's disease.

Conclusions

We identified clinical and genetic markers associated with infliximab response in IBD patients. Our findings could provide insights to maximize the efficacy of infliximab therapy in IBD patients.

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