RESUMO
Cancerous transformation comprises different events that are both genetic and epigenetic. The ultimate goal for such events is to maintain cell survival and proliferation. This transformation occurs as a consequence of different features such as environmental and genetic factors, as well as some types of infection. Many viral infections are considered to be causative agents of a number of different malignancies. To convert normal cells into cancerous cells, oncogenic viruses must function at the epigenetic level to communicate with their host cells. Oncogenic viruses encode certain epigenetic factors that lead to the immortality and proliferation of infected cells. The epigenetic effectors produced by oncogenic viruses constitute appealing targets to prevent and treat malignant diseases caused by these viruses. In this review, we highlight the importance of epigenetic reprogramming for virus-induced oncogenesis, with special emphasis on viral epigenetic oncoproteins as therapeutic targets. The discovery of molecular components that target epigenetic pathways, especially viral factors, is also discussed.
Assuntos
Epigênese Genética , Neoplasias/virologia , Vírus Oncogênicos/fisiologia , Infecções Tumorais por Vírus/virologia , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antivirais/farmacologia , Antivirais/uso terapêutico , Transformação Celular Viral , Humanos , Neoplasias/prevenção & controle , Vírus Oncogênicos/genética , Vírus Oncogênicos/patogenicidade , Infecções Tumorais por Vírus/tratamento farmacológicoRESUMO
INTRODUCTION: The COVID-19 pandemic has disproportionately affected underserved, low-income, ethnoracial minority communities, as well as those with substance use disorders (SUDs). The workforce of peer recovery specialists (PRSs), individuals with lived substance use and recovery experience, has rapidly expanded in response to a shortage of access to substance use treatment, particularly for those from underserved communities. As PRSs are likely serving individuals disproportionately affected by the pandemic, it is important to understand how COVID-19 has affected the PRS role and the individuals with SUD who they are supporting. METHOD: This study aimed to examine: (1) the impact of COVID-19 on the PRS role and experience, (2) the impact of COVID-19 on clients in or seeking SUD treatment, (3) facilitators for clients engaging in treatment and adapting to new changes, and (4) sustainability of new treatment methods post-pandemic. RESULTS: Findings suggest that PRSs have had to adapt their role and responsibilities to meet changing client needs; however, PRS strengths, such as their shared experience and expertise navigating treatment barriers, make them uniquely suited to assist clients during the pandemic. The study identified various barriers and facilitators to clients seeking treatment or living with SUD, such as the loss of interpersonal connection. PRSs also identified some drawbacks to utilizing telehealth, but identified this as a potentially sustainable approach to delivering care after the pandemic. CONCLUSION: Future research could explore how challenges to fulfilling the PRS role, as well as adaptations to overcome these challenges, have changed over time.