Dual proteolytic pathways govern glycolysis and immune competence.
Dual proteolytic pathways govern glycolysis and immune competence.
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DOI:
10.1016/j.cell.2014.12.001
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发表时间:
2014-12-18
期刊:
影响因子:
64.5
通讯作者:
Su HC
中科院分区:
文献类型:
--
作者:
Lu W;Zhang Y;McDonald DO;Jing H;Carroll B;Robertson N;Zhang Q;Griffin H;Sanderson S;Lakey JH;Morgan NV;Reynard LN;Zheng L;Murdock HM;Turvey SE;Hackett SJ;Prestidge T;Hall JM;Cant AJ;Matthews HF;Koref MF;Simon AK;Korolchuk VI;Lenardo MJ;Hambleton S;Su HC
Proteasomes and lysosomes constitute the major cellular systems that catabolize proteins to recycle free amino acids for energy and new protein synthesis. Tripeptidyl peptidase II (TPPII) is a large cytosolic proteolytic complex that functions in tandem with the proteasome-ubiquitin protein degradation pathway. We found that autosomal recessive TPP2 mutations cause recurrent infections, autoimmunity, and neurodevelopmental delay in humans. We show that a major function of TPPII in mammalian cells is to maintain amino acid levels, and that TPPII-deficient cells compensate by increasing lysosome number and proteolytic activity. However, the overabundant lysosomes derange cellular metabolism by consuming the key glycolytic enzyme hexokinase-2 through chaperone-mediated autophagy. This reduces glycolysis and impairs the production of effector cytokines including IFN-γ and IL-1β. Thus, TPPII controls the balance between intracellular amino acid availability, lysosome number, and glycolysis, which is vital for adaptive and innate immunity and neurodevelopmental health.
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影响因子:
64.8
作者:
Rose, C;Vargas, F;Schwartz, JC
通讯作者:
Schwartz, JC
影响因子:
64.5
作者:
Chang CH;Curtis JD;Maggi LB Jr;Faubert B;Villarino AV;O'Sullivan D;Huang SC;van der Windt GJ;Blagih J;Qiu J;Weber JD;Pearce EJ;Jones RG;Pearce EL
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Pearce EL
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32.4
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Reits, E;Neijssen, J;Neefjes, J
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Neefjes, J
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5.4
作者:
Cham, Candace M.;Driessens, Gregory;O'Keefe, James P.;Gajewski, Thomas F.
通讯作者:
Gajewski, Thomas F.
影响因子:
4.1
作者:
BARNES, DM;CALVERT, CC;KLASING, KC
通讯作者:
KLASING, KC