Conectar
by Matt Sherwood, Ben Nicholas, Alistair Bailey, Thiago Giove Mitsugi, Carolini Kaid, Oswaldo K. Okamoto, Paul Skipp, Rob M. Ewing
Despite decades of research, survival from brain cancer has scarcely improved and is drastically lower than that of other cancers. Novel therapies, such as immunotherapy, hold great promise for treating brain tumours and are desperately needed. Zika virus (ZIKV) infects and kills aggressive cancer cells with stem-like properties (CSCs) from both paediatric and adult brain tumours. Whilst T cell recruitment into ZIKV-infected brain tumours is becoming well documented, the specific mechanisms through which they are activated are poorly understood. We address this by employing a combined global proteome and immunopeptidome mass spectrometry approach to describe, for the first time, human leukocyte antigen (HLA) presentation of ZIKV peptides on the surface of infected brain tumour cells. We first show that antigen processing and presentation by HLA class I (HLA-I) is the top enriched immune response pathway in the global proteome of aggressive paediatric USP7-ATRT brain tumour cells following ZIKV infection. We identify USP7-ATRT cells as a desirable immunopeptidome model as they express the globally common HLA-A allotype (A*02:01). We predict the majority of our 19 identified ZIKV peptides to strongly bind and be presented by HLA-A*02:01. We observe a trend between immunopeptide presentation and cellular ZIKV protein abundance, with nearly half of the peptides arising from the most abundant viral protein; non-structural protein 3 (NS3). We show the ZIKV NS3 helicase domain to be a particularly rich source of peptides. Finally, we verify that the 19 ZIKV peptides identified here are not predicted to mimic peptides of the human proteome. The ZIKV peptides we identify here are novel targets for immunotherapy, and our findings provide potential insight into the efficacious cytotoxic T cell response that oncolytic ZIKV virotherapy can induce against brain tumours.Improving the quality of life for preterm children is a global health priority, given their vulnerability to neurocognitive impairments and adverse health consequences. Lack of posthospital care further exacerbates these risks, necessitating effective interventions during the neonatal period. This protocol for a pilot study aims to investigate the effects of touch interventions, including physiotherapy and osteopathic manipulative treatment, on brain activity in moderately preterm infants using brain functional MRI (fMRI), computerised EEG and metabolomics.
A 3-arm randomised sham-controlled trial will be conducted with 15 infants per experimental group. The study will include stable preterm infants born between 32.0 and 33.6 weeks of gestational age who do not require any intensive care treatments.
The study aims to assess the impact of touch interventions on brain activity and metabolic sequelae. Using fMRI will primarily examine the pre-post changes between groups in blood oxygenation level dependent levels among different brain areas, specifically the anterior insula and the medial prefrontal cortex. Secondarily, we will explore the preterm brain’s neural effects on EEG slow delta wave band. Metabolomics will provide data on the effects among the three groups on metabolic changes associated with touch interventions.
Ethical approval has been obtained from the Ethics Committee of the local health agency in Milan (CET 449-2024). Understanding the effects of touch interventions on brain activity in moderately preterm infants, without needs of intensive care, can contribute to improving their clinical outcomes and promoting their growth, development and social behaviour. Findings from this pilot study will pave the way for future research, enabling the development of evidence-based interventions to enhance preterm infants’ well-being and long-term outcomes.
To map interventions in the sexuality of men with stomas.
Scoping review, following JBI and PRISMA-ScR guidelines to report results.
Databases consulted were PubMed, via National Library of Medicine, Latin American and Caribbean Health Sciences Literature, Web of Science, Scopus, Embase, Scientific Electronic Library Online, Brazilian Electronic Library of Thesis and Dissertations, CAPES Catalogue of Thesis and Dissertations and Open Access Scientific Repository of Portugal. Texts were read by independent reviewers, with no time or language restrictions.
The final sample included 10 studies. Data were synthesised and grouped for its similarity to approach models, preoperative orientations, self-care promotion, collecting pouch hygiene and safety, sexual health discussion and education, construction of bonds and sexual function evaluation.
Interventions in the sexuality of men with stomas included adherence to models for approaching sexuality, focusing on the permission and coparticipation of the patient, open conversations on the topic, self-care promotion, collecting pouch hygiene and safety, encouragement to the creation of bonds, sexual function evaluation in pre- and postoperative periods and individual and/or collective sexual health education.
This study contributes to the sexuality of men with stomas. It identified recommendations to approach and conduct the topic at hand, addressing the rehabilitation process since the surgery to place the stoma is considered.
This study addressed scientific literature on the sexuality of men with stomas. Most were from Europe and results demonstrated a gap in knowledge. This research will impact the stoma therapy research, affecting teams involved in the care to men with stomas, encouraging reflections on the sexuality of these patients.
This study complies with the PRISMA-ScR.
There was no patient or public contribution.
The protocol of this scoping review was registered in the Open Science Framework, registered under DOI 10.17605/OSF.IO/X9DSC. It can be accessed through the following link: https://osf.io/x9dsc/?view_only=a9c62ef6c11f44499f7b2bfe1fe379f9.
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