Abstract
Bauhinia forficata and Cnidoscolus quercifolius plants are commonly used in folk medicine. However, few studies have investigated their therapeutic potential. Herein, we evaluated the antimicrobial activity of B. forficata and C. quercifolius extracts against microorganisms of clinical relevance and their antiproliferative potential against tumor cells. The following tests were performed: Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC)/minimum fungicidal concentration (MFC), inhibition of biofilm adhesion, and effects on cell morphology. Antiproliferative tests were carried out with human keratinocytes and six tumor lines. Bauhinia forficata showed antimicrobial activity only against C. albicans with MIC of 15.62 ug/mL and MFC higher than 2000 ug/mL. It also inhibited biofilm adhesion and caused alterations in cell morphology. Cnidoscolus quercifolius showed no significant activity (MIC > 2.0 mg/mL) against the strains. Bauhinia forficata and C. quercifolius extracts showed cytostatic activity against the tumor cells. Bauhinia forficata has promising anti-Cand/da activity and should be further investigated for its therapeutic potential. The use of medicinal plants in the treatment of infectious processes has an important function nowadays, due to the limitations of the use of synthetic antibiotics available, related specifically to the microbial resistance emergence.
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