Objectives: Micafungin inhibits 1,3-b-D-glucan synthase and interferes with fungal cell wall synthesis. Clinically, micafungin has been shown to be efficacious for the treatment of invasive fungal infections. However, little is known about the immunomodulatory activity of micafungin in these infections. Methods:We evaluated the immunomodulatory activity of escalating doses of micafungin in murine and human polymorphonuclear neutrophils (PMNs) in vitro and in vivo in different preclinical models of invasive aspergillosis, including mice deficient for selected innate immune receptors. Results: Micafungin wasable to regulatePMNcytokine response to Aspergillus fumigatus conidia by decreasing the expression of tumour necrosis factor-a and increasing that of interleukin-10 (IL-10). In vivo, the therapeutic efficacy of micafungin was strictly dose-dependent, with the maximum activity observed at the highest dose, concomitant with reduced inflammatory pathology. The anti-inflammatory activity of micafungin required IL-10 and occurred through signalling via the TLR2/dectin-1 and TLR3/TRIF pathways. Conclusion: Together, these findings suggest that the therapeutic efficacy of micafungin in aspergillosis is orchestrated by the activation of innate immune receptors affecting the inflammatory/anti-inflammatory balance during infection.

An immunomodulatory activity of micafungin in preclinical aspergillosis / Moretti, S; Bozza, S; Massi Benedetti, C; Prezioso, L; Rossetti, E; Romani, L; Aversa, Franco; Pitzurra, L.. - In: JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY. - ISSN 1460-2091. - 69:4(2014), pp. 1065-1074. [10.1093/jac/dkt457]

An immunomodulatory activity of micafungin in preclinical aspergillosis

AVERSA, Franco;
2014-01-01

Abstract

Objectives: Micafungin inhibits 1,3-b-D-glucan synthase and interferes with fungal cell wall synthesis. Clinically, micafungin has been shown to be efficacious for the treatment of invasive fungal infections. However, little is known about the immunomodulatory activity of micafungin in these infections. Methods:We evaluated the immunomodulatory activity of escalating doses of micafungin in murine and human polymorphonuclear neutrophils (PMNs) in vitro and in vivo in different preclinical models of invasive aspergillosis, including mice deficient for selected innate immune receptors. Results: Micafungin wasable to regulatePMNcytokine response to Aspergillus fumigatus conidia by decreasing the expression of tumour necrosis factor-a and increasing that of interleukin-10 (IL-10). In vivo, the therapeutic efficacy of micafungin was strictly dose-dependent, with the maximum activity observed at the highest dose, concomitant with reduced inflammatory pathology. The anti-inflammatory activity of micafungin required IL-10 and occurred through signalling via the TLR2/dectin-1 and TLR3/TRIF pathways. Conclusion: Together, these findings suggest that the therapeutic efficacy of micafungin in aspergillosis is orchestrated by the activation of innate immune receptors affecting the inflammatory/anti-inflammatory balance during infection.
2014
An immunomodulatory activity of micafungin in preclinical aspergillosis / Moretti, S; Bozza, S; Massi Benedetti, C; Prezioso, L; Rossetti, E; Romani, L; Aversa, Franco; Pitzurra, L.. - In: JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY. - ISSN 1460-2091. - 69:4(2014), pp. 1065-1074. [10.1093/jac/dkt457]
File in questo prodotto:
File Dimensione Formato  
Moretti JAC 2013.PDF

non disponibili

Tipologia: Documento in Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 1.8 MB
Formato Adobe PDF
1.8 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2678882
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 15
social impact