ripk3/fas-associated death domain axis regulates pulmonary immunopathology to cryptococcal infection independent of necroptosis

ripk3/fas-associated death domain axis regulates pulmonary immunopathology to cryptococcal infection independent of necroptosis

;Zhenzong Fa;Zhenzong Fa;Zhenzong Fa;Qun Xie;Qun Xie;Wei Fang;Wei Fang;Haibing Zhang;Haiwei Zhang;Jintao Xu;Weihua Pan;Weihua Pan;Jinhua Xu;Michal A. Olszewski;Michal A. Olszewski;Xiaoming Deng;Wanqing Liao;Wanqing Liao
sudebno-meditsinskaia ekspertiza 2017 Vol. 8 pp. -
151
fa2017frontiersripk3/fas-associated

Abstract

Fas-associated death domain (FADD) and receptor interacting protein kinase 3 (RIPK3) are multifunctional regulators of cell death and immune response. Using a mouse model of cryptococcal infection, the roles of FADD and RIPK3 in anti-cryptococcal defense were investigated. Deletion of RIPK3 alone led to increased inflammatory cytokine production in the Cryptococcus neoformans-infected lungs, but in combination with FADD deletion, it led to a robust Th1-biased response with M1-biased macrophage activation. Rather than being protective, these responses led to paradoxical C. neoformans expansion and rapid clinical deterioration in Ripk3−/− and Ripk3−/−Fadd−/− mice. The increased mortality of Ripk3−/− and even more accelerated mortality in Ripk3−/−Fadd−/− mice was attributed to profound pulmonary damage due to neutrophil-dominant infiltration with prominent upregulation of pro-inflammatory cytokines. This phenomenon was partially associated with selective alterations in the apoptotic frequency of some leukocyte subsets, such as eosinophils and neutrophils, in infected Ripk3−/−Fadd−/− mice. In conclusion, our study shows that RIPK3 in concert with FADD serve as physiological “brakes,” preventing the development of excessive inflammation and Th1 bias, which in turn contributes to pulmonary damage and defective fungal clearance. This novel link between the protective effect of FADD and RIPK3 in antifungal defense and sustenance of immune homeostasis may be important for the development of novel immunomodulatory therapies against invasive fungal infections.

Citation

ID: 151232
Ref Key: fa2017frontiersripk3/fas-associated
Use this key to autocite in SciMatic or Thesis Manager

References

Blockchain Verification

Account:
NFT Contract Address:
0x95644003c57E6F55A65596E3D9Eac6813e3566dA
Article ID:
151232
Unique Identifier:
10.3389/fimmu.2017.01055
Network:
Scimatic Chain (ID: 481)
Loading...
Blockchain Readiness Checklist
Authors
Abstract
Journal Name
Year
Title
5/5
Creates 1,000,000 NFT tokens for this article
Token Features:
  • ERC-1155 Standard NFT
  • 1 Million Supply per Article
  • Transferable via MetaMask
  • Permanent Blockchain Record
Blockchain QR Code
Scan with Saymatik Web3.0 Wallet

Saymatik Web3.0 Wallet