ABSTRACT
BACKGROUND: An estimated 609,820 child-rearing adults in 2023 died from advanced cancer, affecting 153,675 dependent children. Although children are known to suffer significant distress when a parent is diagnosed with cancer, few studies have described parents' views of their adolescent's behavioral response to their advanced cancer or what the parent did to interpret or manage that response. OBJECTIVES: To describe patient-reported concerns about their adolescent and how they responded to their adolescent's behavior. METHODS: Single occasion interviews were administered to 6 adolescent-rearing parents with Stage IV cancer. Interviews were analyzed using inductive content analysis by trained coders. Trustworthiness of results was protected through peer debriefing, coding to consensus, and maintaining an audit trail. RESULTS: The core construct that explained study data was Being There without Taking Over, comprised of 4 domains: Struggling to Read My Child, Attempting to Talk with My Child about My Cancer, Trying to Maintain Optimism, and Understanding My Child. CONCLUSIONS: Parents were deeply concerned about the impact of their advanced cancer on their adolescent but were unable to distinguish between cancer-related distress and adolescent angst. They feared initiating cancer-related discussions and struggled with their own feelings of guilt and parental inadequacy but did not turn to professionals for help. SIGNIFICANCE OF RESULTS: Adolescent-rearing patients with advanced disease need to be triaged into services that offer a framework from which parents can interpret their child's behavior and learn ways to have adolescent-appropriate conversations about the cancer. Such services should also help parents gain skills to manage feelings of parental inadequacy and guilt. In the absence of services, parents struggle and do not know how to interpret and respond to their adolescent's cancer-related behavior.
ABSTRACT
Background: Histologic and serologic studies suggest the induction of local and systemic Treponema pallidum ( Tp )-specific CD4+ T cell responses to Tp infection. We hypothesized that Tp -specific CD4+ T cells are detectable in blood and in the skin rash of secondary syphilis and persist in both compartments after treatment. Methods: PBMC collected from 67 participants were screened by IFNγ ELISPOT response to Tp sonicate. Tp -reactive T cell lines from blood and skin were probed for responses to 88 recombinant Tp antigens. Peptide epitopes and HLA class II restriction were defined for selected antigens. Results: We detected CD4+ T cell responses to Tp sonicate ex vivo. Using Tp -reactive T cell lines we observed recognition of 14 discrete proteins, 13 of which localize to bacterial membranes or the periplasmic space. After therapy, Tp -specific T cells persisted for at least 6 months in skin and 10 years in blood. Conclusions: Tp infection elicits an antigen-specific CD4+ T cell response in blood and skin. Tp -specific CD4+ T cells persist as memory in both compartments long after curative therapy. The Tp antigenic targets we identified may be high priority vaccine candidates.
ABSTRACT
Chronic viral infections are known to lead to T cell exhaustion or dysfunction. However, it remains unclear if antigen exposure episodes from periodic viral reactivation, such as herpes simplex virus type-2 (HSV-2) recrudescence, are sufficient to induce T cell dysfunction, particularly in the context of a tissue-specific localized, rather than a systemic, infection. We designed and implemented a stringent clinical surveillance protocol to longitudinally track both viral shedding and in situ tissue immune responses in a cohort of HSV+ volunteers that agreed to avoid using anti-viral therapy for the course of this study. Comparing lesion to control skin biopsies, we found that tissue T cells expanded immediately after reactivation, and then returned numerically and phenotypically to steady state. T cell responses appeared to be driven at least in part by migration of circulating T cells to the infected tissue. Our data indicate that tissue T cells are stably maintained in response to HSV reactivation, resembling a series of acute recall responses.
Subject(s)
Reinfection , Sepsis , Humans , T-Lymphocytes , Biopsy , HomeostasisABSTRACT
Background: In women, genital herpes simplex virus type 2 (HSV-2) infection is associated with increased risk for recurrent bacterial vaginosis (BV), but causal relationships are unclear. Methods: Women with a self-reported history of BV and HSV-2 seropositivity self-collected vaginal and anogenital swabs for 2 nonconsecutive 28-day periods, in the absence or presence of valacyclovir suppressive therapy (500â mg daily). HSV polymerase chain reaction was performed on anogenital swabs; vaginal swabs were used for assessment of BV by Nugent score and quantification of vaginal microbiota. Days with BV, defined by Nugent score ≥7, were compared during the observational period and valacyclovir treatment. Results: Forty-one women collected swabs for a median of 28â days (range, 20-32 days) each study period. The HSV-2 shedding rate decreased from 109 of 1126â days (9.7%) presuppression to 6 of 1125â days (0.05%) during valacyclovir (rate ratio [RR], 0.06 [95% confidence interval {CI}, .02-.13]). BV occurred on 343 of 1103â days (31.1%) during observation and 302 of 1091â days (27.7%) during valacyclovir (RR, 0.90 [95% CI, .68-1.20]). The median per-person Nugent score was 3.8 during observation and 4.0 during valacyclovir. Average log10 concentrations of vaginal bacterial species did not change significantly during valacyclovir treatment. Conclusions: Short-term HSV-2 suppression with valacyclovir did not significantly affect the Nugent score or the vaginal microbiome despite potent suppression of HSV-2 shedding.
