Abstract:
:Candida albicans is a frequent aetiologic agent of sepsis associated with high mortality in immunocompromised patients. Developing new antifungal therapies is a medical need due to the low efficiency and resistance to current antifungal drugs. Here, we show that p38γ and p38δ regulate the innate immune response to C. albicans We describe a new TAK1-TPL2-MKK1-ERK1/2 pathway in macrophages, which is activated by Dectin-1 engagement and positively regulated by p38γ/p38δ. In mice, p38γ/p38δ deficiency protects against C. albicans infection by increasing ROS and iNOS production and thus the antifungal capacity of neutrophils and macrophages, and by decreasing the hyper-inflammation that leads to severe host damage. Leucocyte recruitment to infected kidneys and production of inflammatory mediators are decreased in p38γ/δ-null mice, reducing septic shock. p38γ/p38δ in myeloid cells are critical for this effect. Moreover, pharmacological inhibition of p38γ/p38δ in mice reduces fungal burden, revealing that these p38MAPKs may be therapeutic targets for treating C. albicans infection in humans.
journal_name
EMBO Mol Medjournal_title
EMBO molecular medicineauthors
Alsina-Beauchamp D,Escós A,Fajardo P,González-Romero D,Díaz-Mora E,Risco A,Martín-Serrano MA,Del Fresno C,Dominguez-Andrés J,Aparicio N,Zur R,Shpiro N,Brown GD,Ardavín C,Netea MG,Alemany S,Sanz-Ezquerro JJ,Cuenda Adoi
10.15252/emmm.201708485subject
Has Abstractpub_date
2018-05-01 00:00:00issue
5eissn
1757-4676issn
1757-4684pii
emmm.201708485journal_volume
10pub_type
杂志文章abstract::The tumor suppressor gene TP53 is the most frequently mutated gene in cancer. The compound APR-246 (PRIMA-1Met/Eprenetapopt) is converted to methylene quinuclidinone (MQ) that targets mutant p53 protein and perturbs cellular antioxidant balance. APR-246 is currently tested in a phase III clinical trial in myelodysplas...
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