Review
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World J Pharmacol. Dec 9, 2014; 3(4): 97-109
Published online Dec 9, 2014. doi: 10.5497/wjp.v3.i4.97
Patents on antivirulence therapies
María López, Beathriz Barbosa, Eva Gato, Germán Bou, María Tomás
María López, Eva Gato, Germán Bou, María Tomás, Servicio de Microbiología, Complejo Hospitalario Universitario A Coruña-INIBIC, 15006 La Coruña, Spain
Beathriz Barbosa, Departamento de Microbiologia, Imunologia e Parasitologia - FCM/UERJ, 20551-030 Rio de Janeiro, Brazil
Author contributions: All authors contributed to this work.
Supported by Instituto de Salud Carlos III FEDER, Spanish Network for the Research in Infectious Diseases, No. REIPI RD12/0015; by the Spanish Ministry of Health and FEDER funding, No. FIS PI10/00056-PI13/02390 (to Tomás M) and PI12/00552 (to Bou G); and by the Miguel Servet Programme (C.H.U.A. Coruña and ISCIII) (to Tomás M)
Correspondence to: María Tomás, MD, PhD, Servicio de Microbiología, Complejo Hospitalario Universitario A Coruña-INIBIC, As Xubias, 84, 15006 La Coruña, Spain. ma.del.mar.tomas.carmona@sergas.es
Telephone: +34-98-1176399 Fax: +34-98-1178273
Received: June 28, 2014
Revised: October 30, 2014
Accepted: November 7, 2014
Published online: December 9, 2014
Processing time: 166 Days and 18.3 Hours
Abstract

Antivirulence therapy inhibits bacterial virulence factors, thus preventing the development of infection without affecting bacterial growth. The development of new antibiotics is complicated by the increasing incidence of antibiotic resistance in pathogenic bacteria. Antivirulence therapy is a promising alternative to traditional antibiotic therapy for the treatment of infectious disease, either alone or in combination with antibiotic treatment. In this review, we consider patents concerning inhibition of several bacterial virulence factors: adhesion/colonization, secretion systems, cellular signalling systems and antimicrobial resistance mechanisms. Finally, we emphasize the importance of analyzing new targets and/or molecules in this field and of considering possible resistance mechanisms.

Keywords: Patents; Quorum sensing; Adhesion; Bacterial secretory systems; Resistance

Core tip: Antimicrobial resistance in nosocomial pathogens has increased dramatically in recent years. The development of new molecules, therapies and/or new combinations for the eradication of these pathogens is therefore imperative. A new line of research in this area is called “Antivirulence Therapy”.