Anti-Aspergillus fumigatus efficacy of pentraxin 3 alone and in combination with antifungals

Roberta Gaziano, Silvia Bozza, Silvia Bellocchio, Katia Perruccio, Claudia Montagnoli, Lucia Pitzurra, Giovanni Salvatori, Rita De Santis, Paolo Carminati, Alberto Mantovani, Luigina Romani

Research output: Contribution to journalArticlepeer-review

Abstract

The collectin pentraxin 3 (PTX3) is an essential component of host resistance to pulmonary aspergillosis. Here we examined the protective elects of administration of PTX3 alone or together with deoxycholate amphotericin B (Fungizone) or liposomal amphotericin B (AmBisome) against invasive aspergillosis in a murine model of allogeneic bone marrow transplantation. PTX3, alone or in combination with the polyenes, was given intranasally or parenterally either before, in concomitance with, or after the intranasal infection with Aspergillus fumigatus conidia. Mice were monitored for resistance to infection and parameters of innate and adaptive T-helper immunity. The results showed the following: (i) complete resistance to infection and reinfection was observed in mice treated with PTX3 alone; (ii) the protective effect of PTX3 was similar or superior to that observed with liposomal amphotericin B or deoxycholate amphotericin B, respectively; (iii) protection was associated with accelerated recovery of lung phagocytic cells and T-helper-1 lymphocytes and concomitant decrease of inflammatory pathology; and (iv) PTX3 potentiated the therapeutic efficacy of suboptimal doses of either antimycotic drug. Together, these data suggest the potential therapeutic use of PTX3 either alone or as an adjunctive therapy in A. fumigatus infections.

Original languageEnglish
Pages (from-to)4414-4421
Number of pages8
JournalAntimicrobial Agents and Chemotherapy
Volume48
Issue number11
DOIs
Publication statusPublished - Nov 2004

ASJC Scopus subject areas

  • Pharmacology (medical)

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