Recent advances in photodynamic therapy combined with chemotherapy for cervical cancer: a systematic review.

INTRODUCTION: Despite the evidence that photodynamic therapy (PDT) associated with chemotherapy presents great potential to overcome the limitations of monotherapy, little is known about the current status of this combination against cervical cancer. This systematic review aimed to address the currently available advances in combining PDT and chemotherapy in different research models and clinical trials of cervical cancer. METHODS: We conducted a systematic review based on PRISMA Statement and Open Science Framework review protocol using PubMed, Web of Science, Embase, Scopus, LILACS, and Cochrane databases. We selected original articles focusing on 'Uterine Cervical Neoplasms' and 'Photochemotherapy and Chemotherapy' published in the last 10 years. The risk of bias in the studies was assessed using the CONSORT and SYRCLE tools. RESULTS: Twenty-three original articles were included, focusing on HeLa cells, derived from endocervical adenocarcinoma and on combinations of several chemotherapeutics. Most of the combinations used modern drug delivery systems for improved simultaneous delivery and presented promising results with increased cytotoxicity compared to monotherapy. CONCLUSION: Despite the scarcity of animal studies and the absence of clinical studies, the combination of chemotherapy with PDT presents a potential option for cervical cancer therapy requiring additional studies. OSF REGISTRATION: https://doi.org/10.17605/OSF.IO/WPHN5 [Figure: see text].

Recentes avanços em biomarcadores para diagnóstico, prognóstico e avaliação terapêutica no câncer cervical / Recent advances in biomarkers for diagnosis, prognosis, and therapeutic evaluation in cervical cancer

Objetivos: revisar os estudos clínicos acerca de biomarcadores para o câncer cervical publicados nos últimos 10 anos, com foco no diagnóstico, prognóstico e avaliação do tratamento. Metodologia: as bases de dados PubMed, Web of Science e Science Direct foram pesquisadas utilizando os descritores "Uterine Cervical Neoplasms" e "Biomarkers". Foram selecionados os artigos originais publicados em inglês ou português, no período de 2011 a 2021. Após uma triagem pelos títulos e resumos dos artigos, aqueles relacionados ao objetivo do estudo foram lidos integralmente para a decisão final de inclusão na revisão. Os trabalhos que atenderam todos os critérios de seleção tiveram seus dados extraídos, principalmente, no que se refere ao tipo e objetivo do biomarcador proposto, população do estudo, tamanho da amostra, metodologia utilizada e principais desfechos obtidos. Resultados: esta estratégia de busca e seleção resultou em 22 artigos publicados nos últimos 10 anos na temática de interesse. Ocorreu um grande empenho na investigação de biomarcadores séricos para o câncer cervical, com a vantagem de serem minimamente invasivos. Houve destaque para marcadores genéticos e moleculares, como aqueles voltados para a metilação do DNA, detecção de polimorfismos, padrões de expressão de micro-RNA e expressão de genes relacionados à proliferação, imortalização e invasão celular. Conclusão: os dados reunidos encorajam a ampliação das pesquisas para aprimorar e validar a eficiência destes biomarcadores em grandes populações. É evidente o potencial dos biomarcadores como estratégia para melhorar o manejo do diagnóstico e o tratamento do câncer cervical, sendo que a utilização de marcadores genéticos parece ser o futuro dos biomarcadores para o câncer cervical

Aims: to review clinical studies on biomarkers for cervical cancer published in the last 10 years, focusing on the diagnosis, prognosis, and treatment evaluation. Methods: PubMed, Web of Science, and Science Direct databases were searched using the descriptors "Uterine Cervical Neoplasms" and "Biomarkers". Original articles published in English or Portuguese from 2011 to 2021 were selected. After screening by the titles and abstracts of the articles, those related to the objective of the study were read in full for the final decision of inclusion in the review. The studies that met all the selection criteria had their data extracted, especially regarding the type and objective of the biomarker proposed, study population, sample size, methodology used, and main outcomes obtained. Results: this search and selection strategy resulted in 22 articles published in the last 10 years on the topic of interest. There was a great effort to investigate serum biomarkers for cervical cancer, with the advantage of being minimally invasive. There was an emphasis on genetic and molecular markers, such as those focused on DNA methylation, detection of polymorphisms, expression patterns of microRNA, and expression of genes related to cell proliferation, immortalization, and invasion.Conclusions: the data gathered encourage expanded research to improve and validate the efficiency of these biomarkers in large populations. The potential of biomarkers as a strategy to improve the management of cervical cancer diagnosis and treatment is evident, and the use of genetic markers appears to be the future of biomarkers for cervical cancer