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A human immune system mouse model with robust lymph node development
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DOI：10.1038/s41592-018-0071-6.png)
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Lymph nodes (LNs) facilitate the cellular interactions that orchestrate immune responses. Human immune system (HIS) mice are powerful tools for interrogation of human immunity but lack secondary lymphoid tissue (SLT) as a result of a deficiency in Il2rg-dependent lymphoid tissue inducer cells. To restore LN development, we induced expression of thymic-stromal-cell-derived lymphopoietin (TSLP) in a Balb/c Rag2(-/)-Il2rg(-/)-Sirpa(NOD) (BRGS) HIS mouse model. The resulting BRGST HIS mice developed a full array of LNs with compartmentalized human B and T cells. Compared with BRGS HIS mice, BRGST HIS mice have a larger thymus, more mature B cells, and abundant IL-21-producing follicular helper T (T-FH) cells, and show enhanced antigen-specific responses. Using BRGST HIS mice, we demonstrated that LN T-FH cells are targets of acute HIV infection and represent a reservoir for latent HIV. In summary, BRGST HIS mice reflect the effects of SLT development on human immune responses and provide a model for visualization and interrogation of regulators of immunity.
Keyword:
HELPER T-CELLS
MEMORY B-CELLS
GAMMA-CHAIN
IN-VIVO
MICE
RECEPTOR
HIV-1
TSLP
RECONSTITUTION
HOMEOSTASIS
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分享收藏PD-1+ and follicular helper T cells are responsible for persistent HIV-1 transcription in treated aviremic individuals.png)
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