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Abstract Background The aim of the study was to have youth participate in the design and implementation of a research project set within a child rights framework to better understand high schoolers’ perceptions of safety in their school and community. Results Between June 2020 and March 2021, a team of East Harlem, New York high school students, participated as co-researchers to modify the United Nations Children's Fund Child Friendly Cities Initiative Survey to suit their needs. Due to the COVID-19 pandemic, the final survey was conducted through an online remote classes system during advisory school classes, accompanied by brief focused group discussions. The novel process of conducting an interactive qualitative and quantitative virtual survey during a pandemic via youth participatory action research is outlined in this paper. Conclusions Our results demonstrate that youth participatory action research can be utilized as part of a child rights framework approach to assess the views of youth regarding community safety and violence prevention.

Abstract Background The USA has failed to codify the protection of children from gun violence (GV) as a human right. This study employs a youth participatory action research methodology, within the framework of the United Nations Convention on the Rights of the Child (UNCRC), to investigate the relationships between GV exposure, self-identified gender and perceptions of children’s rights and safety. Methods An anonymous survey based on UNICEF USA’s Child Friendly Cities Initiative interactive survey tool targeting adolescents was modified by East Harlem, New York high school student co-researchers in collaboration with near-peer graduate students. The 61-question survey was administered at an East Harlem high school. Analysis consisted of univariate, bivariate and logistic regression using SPSS®. Results A total of 153 students completed the survey: 48.4% self-identified as male and 45.8% as female. Thirty-five percent reported witnessing GV. Most (79.1%) were aware of child rights regardless of gender or GV exposure but there were differences in perceptions of safety. Fifteen percent of females reported never feeling safe at school compared to 3% of males (p = 0.01). Females were 2.2 times as likely as males to report transportation waiting areas as never safe (p = 0.008). Almost a third of females reported never feeling safe from sexual harassment in public, compared to 10% of males (p = 0.004). In multivariable logistic regression adjusted for gender, race/ethnicity and grade level, students who witnessed GV were 4.6 times more likely to report never feeling safe from violence (95% CI 1.7–12.4). Thirty percent of students who witnessed GV reported not attending school because of safety concerns. Students who witnessed GV had 2.2 times the odds of carrying a weapon to school (95% CI 1.1–4.5). These patterns continued for other perceptions of safety. Conclusions The students in this study affirmed their rights to participate and express their views on matters that may affect them, as articulated in the UNCRC. The study revealed differences in perceptions of safety by self-identified gender and identified gun violence as a major contributor of youth’s perception of lack of safety. The study evinces the efficacy of employing YPAR methodology to identify and answer youth concerns of community safety and prioritize honoring child rights.

CBL-B is an E3 ubiquitin ligase that ubiquitinates proteins downstream of immune receptors to downregulate positive signaling cascades. Distinct homozygous mutations in CBLB were identified in 3 unrelated children with early-onset autoimmunity, one of whom also had chronic urticaria. Patient T cells exhibited hyperproliferation in response to anti-CD3 cross-linking. One of the mutations, p.R496X, abolished CBL-B expression, and a second mutation, p.C464W, resulted in preserved CBL-B expression. The third mutation, p.H285L in the SH2 domain of CBL-B, was expressed at half the normal level in the patient’s cells. Mice homozygous for the CBL-B p.H257L mutation, which corresponds to the patient’s p.H285L mutation, had T and B cell hyperproliferation in response to antigen receptor cross-linking. CblbH257L mice had increased percentages of T regulatory cells (Tregs) that had normal in vitro suppressive function. However, T effector cells from the patient with the p.H285L mutation and CblbH257L mice were resistant to suppression by WT Tregs. Bone marrow–derived mast cells from CblbH257L mice were hyperactivated after FcεRI cross-linking, and CblbH257L mice demonstrated exaggerated IgE-mediated passive anaphylaxis. This study establishes CBL-B deficiency as a cause of immune dysregulation.