'Ready made' virulence and 'dual use' virulence factors in pathogenic environmental fungi--the Cryptococcus neoformans paradigm.

Abstract:

:Environmental pathogenic fungi present a paradox in that they are virulent in animals without requiring animal hosts for replication or survival, a phenomenon we call 'ready-made' virulence. In the human pathogenic fungus Cryptococcus neoformans, the capacity for virulence in animals may originate from environmental selective pressures imposed by such organisms as amoeboid and nematode predators. Many C. neoformans virulence factors appear to have 'dual use' capabilities that confer survival advantages in both animal hosts and in the environment. The findings with C. neoformans may provide a paradigm for understanding the origin and maintenance of virulence in other pathogenic environmental fungi.

journal_name

Curr Opin Microbiol

authors

Casadevall A,Steenbergen JN,Nosanchuk JD

doi

10.1016/s1369-5274(03)00082-1

subject

Has Abstract

pub_date

2003-08-01 00:00:00

pages

332-7

issue

4

eissn

1369-5274

issn

1879-0364

pii

S1369527403000821

journal_volume

6

pub_type

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