title: Targeting of MyD88 Homodimerization by Novel Synthetic Inhibitor TJ-M2010-5 in Preventing Colitis-Associated Colorectal Cancer.
abstract: BACKGROUND
  The TLR/MyD88 signaling pathway is an important driver of inflammation and cancer and is a possible target for antitumor therapy.
  
  
  METHODS
  We generated a MyD88 inhibitor (TJ-M2010-5), which was designed to bind to the TIR domain of MyD88 to interfere with its homodimerization, and the TLR/MyD88 signal pathway. We utilized a mouse model of azoxymethane/dextran sodium sulfate (AOM/DSS)-induced colitis-associated cancer (CAC) in combination with TJ-M2010-5 administration to investigate the anti-inflammation-related cancer effect of MyD88 inhibitor in vivo. Data were analyzed with one-way and repeated measures analysis of variance. Differences in survival between groups were compared using the log rank test. All statistical tests were two-sided.
  
  
  RESULTS
  TJ-M2010-5 inhibited MyD88 homodimerization in transfected HEK293 cells in a concentration-dependent manner and suppressed MyD88 signaling in LPS-responsive RAW 264.7 cells in vitro. In a 10-week CAC mouse model (n = 30 per group), TJ-M2010-5 treatment statistically significantly reduced AOM/DSS-induced colitis and completely prevented CAC development with less related body mass loss, resulted in 0% mortality of treated mice (compared with 53% mortality of control mice), decreased cell proliferation, and increased apoptosis in colon tissue. TJ-M2010-5 treatment also inhibited production of inflammatory cytokines and chemokines (TNF-α, IL-6,G-CSF, MIP-1β, TGF-β1, IL-11, IL-17A, IL-22 and IL-23) and infiltration of immune cells (macrophages, dendritic cells, neutropihls and CD(+)4 T cells) in colon tissues of mice.
  
  
  CONCLUSIONS
  Our findings suggest that TLR/MyD88 signaling may be a therapeutic target for CAC intervention and MyD88 inhibitors may be a promising therapeutic modality for treating patients with colitis or CAC.
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Lin
authors.initials: L
authors.lastname: Xie
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Feng-Chao
authors.initials: FC
authors.lastname: Jiang
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Li-Min
authors.initials: LM
authors.lastname: Zhang
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Wen-Tao
authors.initials: WT
authors.lastname: He
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Liu
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Ming-Qiang
authors.initials: MQ
authors.lastname: Li
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Xue
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Shuai
authors.initials: S
authors.lastname: Xing
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH).
authors.forename: Hui
authors.initials: H
authors.lastname: Guo
authors.affiliation: Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Organ Transplantation, Ministry of Health, and Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, China (LX, LMZ, JHL, MQL, XZ, SX, HG, PZ); Academy of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (FCJ); Department of endocrinology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (WTH). pzhou@tjh.tjmu.edu.cn jiangfc@mails.tjmu.edu.cn.
authors.forename: Ping
authors.initials: P
authors.lastname: Zhou
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D018925:Chemokines / Q000037:antagonists & inhibitors; D003092:Colitis / Q000150:complications*; D015179:Colorectal Neoplasms / Q000209:etiology / Q000378:metabolism* / Q000517:prevention & control*; D016207:Cytokines / Q000037:antagonists & inhibitors*; D004195:Disease Models, Animal; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005434:Flow Cytometry; D007150:Immunohistochemistry; D020287:In Situ Nick-End Labeling; D051379:Mice; D008807:Mice, Inbred BALB C; D058990:Molecular Targeted Therapy / Q000379:methods*; D053594:Myeloid Differentiation Factor 88 / Q000037:antagonists & inhibitors* / Q000378:metabolism; D010879:Piperazines / Q000494:pharmacology; D055503:Protein Multimerization / Q000187:drug effects*; D060888:Real-Time Polymerase Chain Reaction; D015398:Signal Transduction; D013844:Thiazoles / Q000494:pharmacology
chemical_list: C000607343:5-(3-(4-(4-benzylpiperazin-1-yl)-N-(4-phenylthiazol-2-yl))propanamide; D000970:Antineoplastic Agents; D018925:Chemokines; D016207:Cytokines; C507779:MYD88 protein, human; C507780:Myd88 protein, mouse; D053594:Myeloid Differentiation Factor 88; D010879:Piperazines; D013844:Thiazoles