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Clinically relevant human pathogenic fungi include opportunistic fungi, dimorphic fungi, dermatophytes, Mucorales, and other pathogenic groups. HSPs, including Hsp90, Hsp70, Hsp60, Hsp40, and Hsp110, are essential for the correct nascent protein folding, aggregation prevention, and degradation of misfolded polypeptides. Fungal pathogens frequently encounter environmental and host-imposed stresses, including oxidative stress, temperature fluctuations, and antifungal treatments. This review synthesizes and critically analyzes current evidence on the role of HSP families in essential processes linked to fungal virulence, including morphogenetic transitions, biofilm formation, maintenance of cell wall integrity, and interactions with host immune cells. Beyond their canonical chaperone functions, HSPs act as central mediators in pathogenic processes, such as morphogenesis transitions, biofilm formation, cell wall integrity, and interactions with host immune cells. Hsp90 stabilizes key signaling proteins involved in stress responses, morphogenesis, and antifungal resistance, while Hsp60 and Hsp70 contribute to mitochondrial function, cell wall integrity, and immune modulation. Disruption of these chaperones impairs growth, reduces virulence, and increases susceptibility to antifungal agents. The rise of antifungal resistance underscores the urgent need for new therapeutic strategies. Targeting fungal HSPs has emerged as a promising approach due to their essential roles in stress tolerance and pathogenesis. Hsp90 inhibitors, including geldanamycin derivatives and other small molecules, have demonstrated the ability to impair fungal growth, reduce virulence traits, and sensitize resistant strains to conventional antifungal drugs. Combining HSP inhibitors with existing antifungal drugs represents a potential strategy to overcome resistance and improve treatment outcomes. This review summarizes the current knowledge on HSPs in pathogenic fungi, focusing on their roles in stress adaptation, virulence, host-pathogen interaction, antifungal resistance, and their potential as targets for novel antifungal therapies.<\/jats:p>","DOI":"10.3390\/jof12060414","type":"journal-article","created":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T05:43:46Z","timestamp":1780897426000},"page":"414","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Heat Shock Proteins in Medically Relevant Fungal Pathogens: From Molecular Chaperones to Virulence Factors and Therapeutic Targets"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-5913-3401","authenticated-orcid":false,"given":"Leonardo","family":"Padr\u00f3-Villegas","sequence":"first","affiliation":[{"name":"Departamento de Biolog\u00eda, Divisi\u00f3n de Ciencias Naturales y Exactas, Campus Guanajuato, Universidad de Guanajuato, Noria Alta s\/n, col. Noria Alta, Guanajuato 36050, Gto., Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6973-0595","authenticated-orcid":false,"given":"H\u00e9ctor M.","family":"Mora-Montes","sequence":"additional","affiliation":[{"name":"Departamento de Biolog\u00eda, Divisi\u00f3n de Ciencias Naturales y Exactas, Campus Guanajuato, Universidad de Guanajuato, Noria Alta s\/n, col. Noria Alta, Guanajuato 36050, Gto., Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"405","DOI":"10.1111\/pbi.12659","article-title":"The heat-shock protein\/chaperone network and multiple stress resistance","volume":"15","author":"Jacob","year":"2017","journal-title":"Plant Biotechnol. 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