Patricia Bonfim

Dr. Patricia Bonfim


Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 January 2017 in Oxidative Medicine and Cellular Longevity
Verified
Journal Article
Open access
PDF file
RSRaquel P. Souza
Raquel P. Souza
PBPatricia Bonfim
Patricia Bonfim
FGFabrícia Gimenes
Fabrícia Gimenes
BRBianca A. Ratti
Bianca A. Ratti
VKVanessa Kaplum
Vanessa Kaplum
MCMarcia Consolaro
Marcia Consolaro
Recently, the cytotoxic effects of apigenin (4′,5,7‐trihydroxyflavone), particularly its marked inhibition of cancer cell viability both in vitro and in vivo, have attracted the attention of the anticancer drug discovery field. Despite this, there are few studies of apigenin in cervical cancer, and these studies have mostly been conducted using HeLa cells. To evaluate the possibility of apigenin as a new therapeutic candidate for cervical cancer, we evaluated its cytotoxic effects in a comprehensive panel of human cervical cancer‐derived cell lines including HeLa (human papillomavirus/HPV 18‐positive), SiHa (HPV 16‐positive), CaSki (HPV 16 and HPV 18‐positive), and C33A (HPV‐negative) cells in comparison to a nontumorigenic spontaneously immortalized human epithelial cell line (HaCaT). Our results demonstrated that apigenin had a selective cytotoxic effect and could induce apoptosis in all cervical cancer cell lines which were positively marked with Annexin V, but not in HaCaT (control cells). Additionally, apigenin was able to induce mitochondrial redox impairment, once it increased ROS levels and H2O2, decreased theΔψm, and increased LPO. Still, apigenin was able to inhibit migration and invasion of cancer cells. Thus, apigenin appears to be a promising new candidate as an anticancer drug for cervical cancer induced by different HPV genotypes.

1 June 2021 in Photodiagnosis and Photodynamic Therapy
Verified
Journal Article
Closed access
PCPollyanna C.V. Conrado
Pollyanna C.V. Conrado
KSKarina M. Sakita
Karina M. Sakita
GAGlaucia S. Arita
Glaucia S. Arita
CGCamila B. Galinari
Camila B. Galinari
RGRenato S. Gonçalves
Renato S. Gonçalves
Erika Seki Kioshima CoticaErika Seki Kioshima Cotica
Erika Seki Kioshima Cotica

Verified
Journal Article
Open access
PDF file
PBPatricia Bonfim
Patricia Bonfim
ICIsis Regina Grenier Capoci
Isis Regina Grenier Capoci
FVFlavia Valerio
Flavia Valerio
MNMelyssa Negri
Melyssa Negri
TSTerezinha Svidzinski
Terezinha Svidzinski
Glucans are a group of glucose polymers that are found in bacteria, algae, fungi, and plants. While their properties are well known, their biochemical and solubility characteristics vary considerably, and glucans obtained from different sources can have different applications. Research has described the bioactivity of β-glucans extracted from the algae of the Laminaria genus, including in vivo and in vitro studies assessing pro- and anti-inflammatory cytokines, vaccine production, inhibition of cell proliferation, and anti- and pro-oxidant activity. Thus, the objective of this article was to review the potential application of β-glucans from Laminaria spp. in terms of their immunomodulatory properties, microorganism host interaction, anti-cancer activity and vaccine development.

29 April 2019 in Future Microbiology
Verified
Journal Article
Closed access
KSKarina M Sakita
Karina M Sakita
PCPollyanna Cv Conrado
Pollyanna Cv Conrado
DFDaniella R Faria
Daniella R Faria
GAGlaucia S Arita
Glaucia S Arita
ICIsis Rg Capoci
Isis Rg Capoci
PBPatricia Bonfim
Patricia Bonfim
Aim: To evaluate the efficacy of photodynamic inactivation (PDI) mediated by hypericin encapsulated in P-123 copolymeric micelles (P123-Hyp) alone and in combination with fluconazole (FLU) against planktonic cells and biofilm formation of Candida species Materials & methods: PDI was performed using P123-Hyp and an LED device with irradiance of 3.0 mW/cm2 . Results: Most of isolates (70%) were completely inhibited with concentrations up to 2.0 μmol/l of HYP and light fluence of 16.2 J/cm2. FLU-resistant strains had synergic effect with P123-HYP-PDI and FLU. The biofilm formation was inhibited in all species, in additional the changes in Candida morphology observed by scanning electron microscopy. Conclusion: P123-Hyp-PDI is a promising option to treat fungal infections and medical devices to prevent biofilm formation and fungal spread.

1 December 2017 in Microbial Pathogenesis
Verified
Journal Article
Closed access
KSKarina Mayumi Sakita
Karina Mayumi Sakita
DFDaniella Renata Faria
Daniella Renata Faria
ESEliane Martins da Silva
Eliane Martins da Silva
FTFlávia Kelly Tobaldini-Valério
Flávia Kelly Tobaldini-Valério
EKErika Seki Kioshima
Erika Seki Kioshima
PBPatricia Bonfim
Patricia Bonfim

7 March 2021 in Pathogens
Verified
Journal Article
Open access
PDF file
DFDaniella Renata Faria
Daniella Renata Faria
RMRaquel Cabral Melo
Raquel Cabral Melo
GAGlaucia Sayuri Arita
Glaucia Sayuri Arita
KSKarina Mayumi Sakita
Karina Mayumi Sakita
FRFranciele Abigail Vilugron Rodrigues-Vendramini
Franciele Abigail Vilugron Rodrigues-Vendramini
Erika Seki Kioshima CoticaErika Seki Kioshima Cotica
Erika Seki Kioshima Cotica
Candida albicans is the most common species isolated from nosocomial bloodstream infections. Due to limited therapeutic arsenal and increase of drug resistance, there is an urgent need for new antifungals. Therefore, the antifungal activity against C. albicans and in vivo toxicity of a 1,3,4-oxadiazole compound (LMM6) was evaluated. This compound was selected by in silico approach based on chemical similarity. LMM6 was highly effective against several clinical C. albicans isolates, with minimum inhibitory concentration values ranging from 8 to 32 µg/mL. This compound also showed synergic effect with amphotericin B and caspofungin. In addition, quantitative assay showed that LMM6 exhibited a fungicidal profile and a promising anti-biofilm activity, pointing to its therapeutic potential. The evaluation of acute toxicity indicated that LMM6 is safe for preclinical trials. No mortality and no alterations in the investigated parameters were observed. In addition, no substantial alteration was found in Hippocratic screening, biochemical or hematological analyzes. LMM6 (5 mg/kg twice a day) was able to reduce both spleen and kidneys fungal burden and further, promoted the suppresses of inflammatory cytokines, resulting in infection control. These preclinical findings support future application of LMM6 as potential antifungal in the treatment of invasive candidiasis.