Ryan Ichikawa

ScholarGPS® ID: 48730108649469

Affiliation

Genentech, Inc., South San Francisco, United States

Affiliation History

Field

Medicine

Discipline

Gastroenterology

Top Specialties

Fibrosis | Inflammatory Bowel Disease | Inflammation

Metrics Summary

Publication Count

Predicted Citations

706

Predicted h-index

Ranking

Publications and Citation History

Publications based on Top Specialties

Types of Publication

Publications
Books
Patents
NIH/NSF

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Regulation and Role of αE Integrin and Gut Homing Integrins in Migration and Retention of Intestinal Lymphocytes during Inflammatory Bowel Disease (journal article) Keir, Mary E. \| Fuh, Franklin \| Ichikawa, Ryan \| Acres, Meghan \| Hackney, Jason A. \| Hulme, Gillian \| Carey, Christopher D. \| Palmer, Jeremy \| Jones, Claire J. \| Long, Anna K. \| ... \| Lamb, Christopher A. The Journal of Immunology, volume 207, issue 9, pages 2245-2254 (2021). 10.4049/jimmunol.2100220 Cited by (29) \| Cite \| Source
Dual targeting of lymphocyte homing and retention through α4β7 and αEβ7 inhibition in inflammatory bowel disease (journal article) Dai, Bingbing \| Hackney, Jason A. \| Ichikawa, Ryan \| Nguyen, Allen \| Elstrott, Justin \| Orozco, Luz D. \| Sun, Kai-Hui \| Modrusan, Zora \| Gogineni, Alvin \| Scherl, Alexis \| ... \| Yi, Tangsheng Cell Reports Medicine, volume 2, issue 8, pages 100381- (2021). 10.1016/j.xcrm.2021.100381 Cited by (29) \| Cite \| Source
O13 Regulation and role of alphaE integrin in migration and retention of lymphocytes in intestinal mucosa (conference) Lamb, Christopher A \| Dai, Bingbing \| Ichikawa, Ryan \| Acres, Meghan \| Hulme, Gillian \| Carey, Christopher D \| Palmer, Jeremy \| Jones, Claire J \| Long, Anna K \| Mansfield, John C \| ... \| Yi, Tangsheng Abstracts of the BSG Campus, 21–29 January 2021 (2021) 10.1136/gutjnl-2020-bsgcampus.13 Cite \| Source
Combined blockade of α4β7 and αEβ7 integrins leads to a greater reduction of gut proinflammatory T lymphocytes over either pathway alone (journal article) Dai, Bingbing \| Hackney, Jason \| Ichikawa, Ryan \| Elstrott, Justin \| Sun, Kai-Hui \| Modrusan, Zora \| Gogineni, Alvin \| McBride, Jacqueline \| Keir, Mary E \| Yi, Tangsheng The Journal of Immunology, volume 204, issue 1_Supplement, pages 220.17-220.17 (2020). 10.4049/jimmunol.204.Supp.220.17 Cite \| Source
AlphaE Integrin Expression Is Increased in the Ileum Relative to the Colon and Unaffected by Inflammation (journal article) Ichikawa, Ryan \| Lamb, Christopher A \| Eastham-Anderson, Jeff \| Scherl, Alexis \| Raffals, Laura \| Faubion, William A \| Bennett, Miriam R \| Long, Anna K \| Mansfield, John C \| Kirby, John A \| Keir, Mary E Journal of Crohn's and Colitis (2018). 10.1093/ecco-jcc/jjy084 Cited by (13) \| Cite \| Source \| Open Access
Inflammatory Bowel Disease Susceptibility Gene C1ORF106 Regulates Intestinal Epithelial Permeability (journal article) Manzanillo, Paolo \| Mouchess, Maria \| Ota, Naruhisa \| Dai, Bingbing \| Ichikawa, Ryan \| Wuster, Arthur \| Haley, Benjamin \| Alvarado, Gabriela \| Kwon, Youngsu \| Caothien, Roger \| ... \| Yi, Tangsheng ImmunoHorizons, volume 2, issue 5, pages 164-171 (2018). 10.4049/immunohorizons.1800027 Cited by (7) \| Cite \| Source \| Open Access
The protection role of Atg16l1 in CD11c + dendritic cells in murine colitis (journal article) Zhang, Hong \| Zheng, Libo \| Chen, Jeremy \| Fukata, Masayuki \| Ichikawa, Ryan \| Shih, David Q. \| Zhang, Xiaolan Immunobiology, volume 222, issue 7, pages 831-841 (2017). 10.1016/j.imbio.2017.03.002 Cited by (21) \| Cite \| Source \| Open Access
Myeloid ATG16L1 Facilitates Host–Bacteria Interactions in Maintaining Intestinal Homeostasis (journal article) Zhang, Hong \| Zheng, Libo \| McGovern, Dermot P. B. \| Hamill, Ariel M. \| Ichikawa, Ryan \| Kanazawa, Yoshitake \| Luu, Justin \| Kumagai, Kotaro \| Cilluffo, Marianne \| Fukata, Masayuki \| ... \| Shih, David Q. The Journal of Immunology, volume 198, issue 5, pages 2133-2146 (2017). 10.4049/jimmunol.1601293 Cited by (48) \| Cite \| Source \| Open Access
Sa1947 αE+ Cells Have Increased Expression of Inflammatory Markers and Are Correlated in the Ileum and Colon (journal article) Ichikawa, Ryan \| Eastham-Anderson, Jeff \| Scherl, Alexis \| Hackney, Jason \| Orozco, Luz \| Faubion, William \| Mansfield, John \| Kirby, John \| Lamb, Christopher \| Keir, Mary Gastroenterology, volume 150, issue 4, pages S413- (2016). 10.1016/S0016-5085(16)31435-4 Cite \| Source
Sa1826 Identification of Gene Signatures in Human Intestinal Organoids for Biomarker Analyses (journal article) Nagarkar, Deepti \| Manzanillo, Paolo \| Ichikawa, Ryan \| Rae, Julie \| Orozco, Luz \| Hackney, Jason \| Herman, Ann \| Keir, Mary Gastroenterology, volume 150, issue 4, pages S374- (2016). 10.1016/S0016-5085(16)31315-4 Cite \| Source
Sa1145 AlphaE (αE) Integrin Protein and Gene Expression Are Augmented in the Ileum Relative to the Colon in Crohn's Disease (journal article) Ichikawa, Ryan \| Eastham-Anderson, Jeffrey \| Scherl, Alexis \| Tew, Wei \| Egen, Jackson G. \| Lamb, Christopher A. \| Mansfield, John C. \| Kirby, John A. \| Faubion, William A. \| O'Byrne, Sharon \| Keir, Mary E. Gastroenterology, volume 148, issue 4, pages S-239- (2015). 10.1016/S0016-5085(15)30785-X Cite \| Source
Antifibrogenic Effects of the Antimicrobial Peptide Cathelicidin in Murine Colitis-Associated Fibrosis (journal article) Yoo, Jun Hwan \| Ho, Samantha \| Tran, Deanna Hoang-Yen \| Cheng, Michelle \| Bakirtzi, Kyriaki \| Kubota, Yuzu \| Ichikawa, Ryan \| Su, Bowei \| Tran, Diana Hoang-Ngoc \| Hing, Tressia C. \| ... \| Koon, Hon Wai Cellular and Molecular Gastroenterology and Hepatology, volume 1, issue 1, pages 55-74.e1 (2015). 10.1016/j.jcmgh.2014.08.001 Cited by (41) \| Cite \| Source \| Open Access
Cathelicidin suppresses colon cancer development by inhibition of cancer associated fibroblasts (journal article) Koon, Hon Wai \| Cheng, Michelle \| Ho, Samantha \| Yoo, Jun Hwan \| Bakirtzi, Kyriaki \| Tran, Deanna \| Su, Bowei \| Tran, Diana \| Ichikawa, Ryan \| Kubota, Yuzu Clinical and Experimental Gastroenterology (2014). 10.2147/CEG.S70906 Cited by (27) \| Cite \| Source \| Open Access
Inhibition of a novel fibrogenic factor Tl1a reverses established colonic fibrosis (journal article) Shih, D Q \| Zheng, L \| Zhang, X \| Zhang, H \| Kanazawa, Y \| Ichikawa, R \| Wallace, K L \| Chen, J \| Pothoulakis, C \| Koon, H W \| Targan, S R Mucosal Immunology, volume 7, issue 6, pages 1492-1503 (2014). 10.1038/mi.2014.37 Cited by (75) \| Cite \| Source \| Open Access
271 Cathelicidin Inhibits Colitis Associated Colon Cancer Development by Inhibition of Epithelial-Mesenchymal Transition and Cancer Associated Fibroblasts (journal article) Cheng, Michelle \| Ho, Samantha \| Yoo, Jun Hwan \| Bakirtzi, Kyriaki \| Kubota, Yuzu \| Ichikawa, Ryan \| Tran, Deanna H. \| Gallo, Richard \| Pothoulakis, Charalabos \| Koon, Hon Wai Gastroenterology, volume 146, issue 5, pages S-65- (2014). 10.1016/S0016-5085(14)60230-4 Cite \| Source
Su1288 Intestinal Cathelicidin Level Indicates Inflammatory Bowel Disease Activity and Mediates Anti-Inflammatory Effects in Colitis (journal article) Ho, Samantha \| Cheng, Michelle \| Shih, David Q. \| Vu, Michelle \| Hing, Tressia \| Kubota, Yuzu \| Ichikawa, Ryan \| Tran, Deanna H. \| Gallo, Richard \| Targan, Stephan \| ... \| Koon, Hon Wai Gastroenterology, volume 146, issue 5, pages S-426- (2014). 10.1016/S0016-5085(14)61534-1 Cite \| Source
783 TL1A Modulates the Differential Effect of IL-17 Blockade on Mucosal Inflammation (journal article) Wallace, Kori L. \| Zheng, Libo \| Kanazawa, Yoshitake \| Zhang, Hong \| Ichikawa, Ryan \| Chen, Jeremy \| Sidhu, Maninder \| Zhang, Xiaolan \| Pothoulakis, Charalabos \| Koon, Hon Wai \| ... \| Shih, David Q. Gastroenterology, volume 146, issue 5, pages S-133- (2014). 10.1016/S0016-5085(14)60471-6 Cited by (3) \| Cite \| Source
The antimicrobial peptide cathelicidin modulates Clostridium difficile -associated colitis and toxin A-mediated enteritis in mice (journal article) Hing, Tressia C \| Ho, Samantha \| Shih, David Q \| Ichikawa, Ryan \| Cheng, Michelle \| Chen, Jeremy \| Chen, Xinhua \| Law, Ivy \| Najarian, Robert \| Kelly, Ciaran P \| ... \| Koon, Hon Wai Gut, volume 62, issue 9, pages 1295-1305 (2013). 10.1136/gutjnl-2012-302180 Cited by (78) \| Cite \| Source \| Open Access
Erratum to the article Sustained TL1A (TNFSF15) expression on both lymphoid and myeloid cells leads to mild spontaneous intestinal inflammation and fibrosis (journal article) Zheng, Libo \| Zhang, Xiaolan \| Chen, Jeremy \| Ichikawa, Ryan \| Wallace, Kori \| Pothoulakis, Charalabos \| Koon, Hon Wai \| Targan, Stephan R. \| Shih, David Q. European Journal of Microbiology and Immunology, volume 3, issue 2, pages 141-141 (2013). 10.1556/EuJMI.3.2013.2.8 Cited by (1) \| Cite \| Source \| Open Access
Su1182 Intestinal Cathelicidin Levels Predict Prognosis of Ulcerative Colitis Patients (journal article) Koon, Hon Wai \| Shih, David Q. \| Vu, Michelle \| Hing, Tressia \| Cheng, Michelle \| Ichikawa, Ryan \| Ho, Samantha \| Law, Ivy Ka Man \| Gallo, Richard \| Targan, Stephan R. \| Pothoulakis, Charalabos Gastroenterology, volume 144, issue 5, pages S-421- (2013). 10.1016/S0016-5085(13)61549-8 Cite \| Source