Abstract:
:The mixed lineage kinase domain-like protein (MLKL) has emerged as a critical mediator of necroptosis, which results in the release of cellular damage-associated molecular patterns (DAMPs). However, its physiological role in regulating inflammation is not fully understood. We herein showed that Mlkl-/- mice were highly susceptible to colitis and colitis-associated tumorigenesis (CAT), which was associated with massive leukocyte infiltration and increased inflammatory responses. Moreover, we used bone marrow transplantation to reveal that MLKL in inflammatory cells is crucial for its role on colitis. Intestinal mucosal tissue and polyps isolated from Mlkl-/- mice exhibited increased ERK activation and elevated expression of genes associated with inflammation and cancer. Mechanistically, enhanced inflammation in Mlkl-/- mice was due to MEK/ERK activation particularly in dendritic cells (DCs). Our results demonstrate the role of MLKL in maintaining intestinal homeostasis and protecting against colitis and tumorigenesis.
journal_name
Cancer Lettjournal_title
Cancer lettersauthors
Zhao Q,Yu X,Li M,Liu Y,Han Y,Zhang X,Li XM,Wu X,Qin J,Fang J,Zhang Hdoi
10.1016/j.canlet.2019.05.034subject
Has Abstractpub_date
2019-09-10 00:00:00pages
100-111eissn
0304-3835issn
1872-7980pii
S0304-3835(19)30329-5journal_volume
459pub_type
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