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1.
Cytotherapy ; 25(1): 82-93, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36220712

RESUMEN

BACKGROUND AIMS: Delayed immune reconstitution is a major challenge after matched unrelated donor (MUD) stem cell transplant (SCT). In this randomized phase 2 multi-center trial, Adoptive Immunotherapy with CD25/71 allodepleted donor T cells to improve immunity after unrelated donor stem cell transplant (NCT01827579), the authors tested whether allodepleted donor T cells (ADTs) can safely be used to improve immune reconstitution after alemtuzumab-based MUD SCT for hematological malignancies. METHODS: Patients received standard of care or up to three escalating doses of ADTs generated through CD25+/CD71+ immunomagnetic depletion. The primary endpoint of the study was circulating CD3+ T-cell count at 4 months post-SCT. Twenty-one patients were treated, 13 in the ADT arm and eight in the control arm. RESULTS: The authors observed a trend toward improved CD3+ T-cell count at 4 months in the ADT arm versus the control arm (230/µL versus 145/µL, P = 0.18), and three ADT patients achieved normal CD3+ T-cell count at 4 months (>700/µL). The rates of significant graft-versus-host disease (GVHD) were comparable in both cohorts, with grade ≥2 acute GVHD in seven of 13 and four of eight patients and chronic GVHD in three of 13 and three of eight patients in the ADT and control arms, respectively. CONCLUSIONS: These data suggest that adoptive transfer of ADTs is safe, but that in the MUD setting the benefit in terms of T-cell reconstitution is limited. This approach may be of more use in the context of more rigorous T-cell depletion.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Humanos , Linfocitos T , Donante no Emparentado , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Inmunoterapia
2.
Psychooncology ; 31(9): 1459-1473, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35789023

RESUMEN

OBJECTIVE: The purpose of this review was to synthesise the literature on the topic of masculinity and testicular cancer (TC) and investigate the relative impact of TC on men's view of their masculinity. METHODS: Searches were conducted across four databases (MEDline, PsycInfo, CINAHL Plus and Scopus) for articles published before April 2022 that included (1) TC and (2) masculinity. Two researchers independently rated studies for inclusion with a third resolving conflicts. Of the 6464 articles screened, 24 articles (10 quantitative and 14 qualitative) were included in the review. Articles were rated for quality and a narrative synthesis was performed. RESULTS: Overall, results indicated some men experience a shift in the way they relate to their sense of masculinity following diagnosis and treatment for TC. Being single and without children was related to the experience of negative masculinity-related outcomes, possibly due to a compounding lack of relational support and being unable to conform to protector, provider traditions. Men who described testicle loss as symbolic of their diminished masculinity were also negatively impacted. However, recent, high-quality literature on the topic using standardised masculinity measures was limited. CONCLUSION: Some men experience a reduced sense of masculinity after TC, however the impact of TC on masculinity remains person dependent. Further research using validated masculinity measures is required to uncover psycho-social variables that may account for whether and how meaning is made between TC and its treatment and any subsequent impact on perceived masculinity. Such factors may better support these men in life beyond cancer. SYSTEMATIC REVIEW REGISTRATION: PROSPERO. International Prospective Register of Systematic Reviews: CRD42020185649.


Asunto(s)
Neoplasias de Células Germinales y Embrionarias , Neoplasias Testiculares , Niño , Humanos , Masculino , Masculinidad , Neoplasias Testiculares/terapia
3.
J Neuroeng Rehabil ; 19(1): 138, 2022 12 09.
Artículo en Inglés | MEDLINE | ID: mdl-36494721

RESUMEN

BACKGROUND: Spasticity is defined as "a motor disorder characterised by a velocity dependent increase in tonic stretch reflexes (muscle tone) with exaggerated tendon jerks". It is a highly prevalent condition following stroke and other neurological conditions. Clinical assessment of spasticity relies predominantly on manual, non-instrumented, clinical scales. Technology based solutions have been developed in the last decades to offer more specific, sensitive and accurate alternatives but no consensus exists on these different approaches. METHOD: A systematic review of literature of technology-based methods aiming at the assessment of spasticity was performed. The approaches taken in the studies were classified based on the method used as well as their outcome measures. The psychometric properties and usability of the methods and outcome measures reported were evaluated. RESULTS: 124 studies were included in the analysis. 78 different outcome measures were identified, among which seven were used in more than 10 different studies each. The different methods rely on a wide range of different equipment (from robotic systems to simple goniometers) affecting their cost and usability. Studies equivalently applied to the lower and upper limbs (48% and 52%, respectively). A majority of studies applied to a stroke population (N = 79). More than half the papers did not report thoroughly the psychometric properties of the measures. Analysis identified that only 54 studies used measures specific to spasticity. Repeatability and discriminant validity were found to be of good quality in respectively 25 and 42 studies but were most often not evaluated (N = 95 and N = 78). Clinical validity was commonly assessed only against clinical scales (N = 33). Sensitivity of the measure was assessed in only three studies. CONCLUSION: The development of a large diversity of assessment approaches appears to be done at the expense of their careful evaluation. Still, among the well validated approaches, the ones based on manual stretching and measuring a muscle activity reaction and the ones leveraging controlled stretches while isolating the stretch-reflex torque component appear as the two promising practical alternatives to clinical scales. These methods should be further evaluated, including on their sensitivity, to fully inform on their potential.


Asunto(s)
Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Humanos , Espasticidad Muscular/diagnóstico , Reflejo de Estiramiento/fisiología , Accidente Cerebrovascular/complicaciones , Tecnología
4.
Mol Ther ; 26(2): 354-365, 2018 02 07.
Artículo en Inglés | MEDLINE | ID: mdl-29310916

RESUMEN

Gamma delta T (γδT) lymphocytes are primed for rapid function, including cytotoxicity toward cancer cells, and are a component of the immediate stress response. Following activation, they can function as professional antigen-presenting cells. Chimeric antigen receptors (CARs) work by focusing T cell function on defined cell surface tumor antigens and provide essential costimulation for robust activation. Given the natural tropism of γδT cells for the tumor microenvironment, we hypothesized that their transduction with CARs might enhance cytotoxicity while retaining their ability to migrate to tumor and act as antigen-presenting cells to prolong the intratumoral immune response. Using a GD2-targeting CAR as a model system, we showed that γδT cells of both Vδ1 and Vδ2 subsets could be expanded and transduced to sufficient numbers for clinical studies. The CAR added to the cells' innate cytotoxicity by enhancing GD2-specific killing of GD2-expressing cancer cell lines. Migration toward tumor cells in vitro was not impaired by the presence of the CAR. Expanded CAR-transduced Vδ2 cells retained the ability to take up tumor antigens and cross presented the processed peptide to responder alpha beta T (αßT) lymphocytes. γδ CAR-T cell products show promise for evaluation in clinical studies of solid tumors.


Asunto(s)
Receptores de Antígenos de Linfocitos T gamma-delta/metabolismo , Receptores Quiméricos de Antígenos/metabolismo , Subgrupos de Linfocitos T/inmunología , Subgrupos de Linfocitos T/metabolismo , Presentación de Antígeno/inmunología , Células Presentadoras de Antígenos/inmunología , Células Presentadoras de Antígenos/metabolismo , Antígenos de Neoplasias/inmunología , Biomarcadores , Línea Celular Tumoral , Reactividad Cruzada/inmunología , Citotoxicidad Inmunológica/inmunología , Humanos , Inmunoterapia Adoptiva , Activación de Linfocitos/inmunología , Fenotipo , Receptores de Antígenos de Linfocitos T gamma-delta/genética , Receptores Quiméricos de Antígenos/genética
5.
Matern Child Health J ; 20(12): 2415-2423, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27396733

RESUMEN

Objectives This systematic review identifies and reviews both peer-reviewed and 'grey' literature, across a range of disciplines and from diverse sources, relating to the condition of children living in mountain communities in low- and middle-income countries. Findings The literature on poverty in these communities does not generally focus on the particular vulnerabilities of children or the impact of intersecting vulnerabilities on the most marginalised members of communities. However, this literature does contribute analyses of the broader context and variety of factors impacting on human development in mountainous areas. The literature on other areas of children's lives-health, nutrition, child mortality, education, and child labour-focuses more specifically on children's particular vulnerabilities or experiences. However, it sometimes lacks the broader analysis of the many interrelated characteristics of a mountainous environment which impact on children's situations. Themes Nevertheless, certain themes recur across many disciplines and types of literature, and point to some general conclusions: mountain poverty is influenced by the very local specificities of the physical environment; mountain communities are often politically and economically marginalised, particularly for the most vulnerable within these communities, including children; and mountain communities themselves are an important locus for challenging and interrupting cycles of increasing inequality and disadvantage. While this broad-scale review represents a modest first step, its findings provide the basis for further investigation.


Asunto(s)
Altitud , Estado de Salud , Estado Nutricional , Pobreza , Población Rural , Poblaciones Vulnerables , Niño , Empleo , Femenino , Humanos , Renta , Factores Socioeconómicos
6.
Can Fam Physician ; 61(10): e474-83, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26759847

RESUMEN

OBJECTIVE: To develop and test a variety of electronic medical record (EMR) search algorithms to allow clinicians to accurately identify their patients with asthma in order to enable improved care. DESIGN: A retrospective chart analysis identified 5 relevant unique EMR information fields (electronic disease registry, cumulative patient profile, billing diagnostic code, medications, and chart notes); asthma-related search terms were designated for each field. The accuracy of each term was tested for its ability to identify the asthma patients among all patients whose charts were reviewed. Increasingly sophisticated search algorithms were then designed and evaluated by serially combining individual searches with Boolean operators. SETTING: Two large academic primary care clinics in Hamilton, Ont. PARTICIPANTS: Charts for 600 randomly selected patients aged 16 years and older identified in an initial EMR search as likely having asthma (n = 150), chronic obstructive pulmonary disease (n = 150), other respiratory conditions (n = 150), or nonrespiratory conditions (n = 150) were reviewed until 100 patients per category were identified (or until all available names were exhausted). A total of 398 charts were reviewed in full and included. MAIN OUTCOME MEASURES: Sensitivity and specificity of each search for asthma diagnosis (against the reference standard of a physician chart review-based diagnosis). RESULTS: Two physicians reviewed the charts identified in the initial EMR search using a standardized data collection form and ascribed the following diagnoses in 398 patients: 112 (28.1%) had asthma, 81 (20.4%) had chronic obstructive pulmonary disease, 104 (26.1%) had other respiratory conditions, and 101 (25.4%) had nonrespiratory conditions. Concordance between reviewers in chart abstraction diagnosis was high (κ = 0.89, 95% CI 0.80 to 0.97). Overall, the algorithm searching for patients who had asthma in their cumulative patient profiles or for whom an asthma billing code had been used was the most accurate (sensitivity of 90.2%, 95% CI 87.3% to 93.1%; specificity of 83.9%, 95% CI 80.3% to 87.5%). CONCLUSION: Usable, practical search algorithms that accurately identify patients with asthma in existing EMRs are presented. Clinicians can apply 1 of these algorithms to generate asthma registries for targeted quality improvement initiatives and outcome measurements. This methodology can be emulated for other diseases.


Asunto(s)
Algoritmos , Asma/epidemiología , Exactitud de los Datos , Registros Electrónicos de Salud/estadística & datos numéricos , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ontario , Atención Primaria de Salud , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Sistema de Registros , Estudios Retrospectivos , Sensibilidad y Especificidad
7.
Viruses ; 16(6)2024 Jun 17.
Artículo en Inglés | MEDLINE | ID: mdl-38932265

RESUMEN

Pathogenic adenovirus (Ad) infections are widespread but typically mild and transient, except in the immunocompromised. As vectors for gene therapy, vaccine, and oncology applications, Ad-based platforms offer advantages, including ease of genetic manipulation, scale of production, and well-established safety profiles, making them attractive tools for therapeutic development. However, the immune system often poses a significant challenge that must be overcome for adenovirus-based therapies to be truly efficacious. Both pre-existing anti-Ad immunity in the population as well as the rapid development of an immune response against engineered adenoviral vectors can have detrimental effects on the downstream impact of an adenovirus-based therapeutic. This review focuses on the different challenges posed, including pre-existing natural immunity and anti-vector immunity induced by a therapeutic, in the context of innate and adaptive immune responses. We summarise different approaches developed with the aim of tackling these problems, as well as their outcomes and potential future applications.


Asunto(s)
Inmunidad Adaptativa , Adenoviridae , Terapia Genética , Vectores Genéticos , Inmunidad Innata , Humanos , Adenoviridae/inmunología , Adenoviridae/genética , Vectores Genéticos/inmunología , Vectores Genéticos/genética , Terapia Genética/métodos , Animales , Sistema Inmunológico/inmunología , Infecciones por Adenoviridae/inmunología , Infecciones por Adenoviridae/terapia
8.
Sleep Med X ; 8: 100125, 2024 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-39280641

RESUMEN

Objectives: There is a link between inflammatory bowel disease (IBD) and poor sleep quality that is presumed to be multifactorial. The purpose of this study was to identify factors that impact sleep quality in this group including clinical disease activity, depression, anxiety, quality of life, and disordered social media use through questionnaires. Methods: This prospective study analyzed sleep quality in adolescent patients ages 13 to 18 with a diagnosis of IBD using objective data from wrist actigraphy and subjective report from the Pittsburgh Sleep Quality Index (PSQI). Additional screeners including the Short Pediatric Crohn's Disease Activity Index or Pediatric Ulcerative Colitis Activity Index, Pediatric Quality of Life Inventory Gastrointestinal Symptoms Module, Generalized Anxiety Disorder 7-item screener, Patient Health Questionnaire depression screener, and Social Media Disorder scale were also collected. Results: Twenty-three subjects enrolled and 16 completed questionnaires. 62.5 % of participants were in clinical remission and the remaining 37.5 % had mild to severe clinical IBD activity. Poor subjective sleep quality was associated with a shorter duration of sleep time and an increased clinical disease activity score. Patients in clinical remission slept for a longer duration than those with mild IBD activity. Conclusions: This study did not identify a significant relationship between sleep quality and psychosocial factors in the adolescent population with IBD, though their influence cannot be discounted. There was a connection between the presence of disease activity and shorter sleep duration. Similarly, PSQI scores correlated with sleep time but not sleep quality.

9.
Cytotherapy ; 15(1): 109-21, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23260091

RESUMEN

BACKGROUND AIMS: Immunotherapy with allodepleted donor T cells improves immunity after T cell-depleted hematopoietic stem cell transplantation. We developed a methodology for selective depletion of alloreactive T cells after activation with host antigen-presenting cells by targeting T cells up-regulating CD25 and CD71. Combined depletion of these cells yields a pool of allodepleted donor T cells with antiviral properties with minimal capacity to cause graft-versus-host disease. METHODS: Mature dendritic cells were irradiated and used to stimulate donor peripheral blood mononuclear cells for 4 days. The co-culture was stained with anti-CD71-biotin followed by CliniMACS CD25 and Anti-Biotin Reagents (Miltenyi Biotec GmbH; Bergisch Gladbach, Germany) before depletion on the CliniMACS Plus (Miltenyi Biotec GmbH). Residual alloreactivity was tested by flow cytometry, a secondary mixed lymphocyte reaction and limiting dilution analysis, and specific anti-viral immunity with pentamer staining. The large-scale protocol was tested under current good manufacturing practice conditions in five donor-recipient pairs of human leukocyte antigen-matched volunteer donors. RESULTS: We developed a closed-system methodology using cell differentiation bags for cell culture and the COBE2991 Cell Processor (CaridianBCT, Lakewood, CO, USA). We also validated an anti-CD71-biotin generated for ex vivo clinical use. In five large-scale runs, the depleted fraction demonstrated excellent viability (99.9%), minimal residual expression of CD3/CD25 and CD3/CD71 (<0.2%) and passed tests for Mycoplasma, endotoxin, bacterial and fungal sterility. In secondary mixed lymphocyte reaction assays, the median response to host after allodepletion was 0%, whereas responses to third-party peripheral blood mononuclear cells were preserved (median, 105%; range 37%-350%). Limiting dilution analysis assays also demonstrated a reduction in response to host (median, -1.11 log) with preservation of third-party responses, and testing with human leukocyte antigen-restricted pentamers showed that populations of Epstein-Barr virus-specific and cytomegalovirus-specific CD8(+) T cells were retained after depletion. CONCLUSIONS: We optimized a protocol for the combined immunomagnetic depletion of alloreactive CD25/CD71 T cells under current good manufacturing practice conditions and tested the efficacy in five donor-recipient pairs.


Asunto(s)
Antígenos CD/metabolismo , Técnicas de Cultivo de Célula/métodos , Células Dendríticas/inmunología , Subunidad alfa del Receptor de Interleucina-2/metabolismo , Depleción Linfocítica , Receptores de Transferrina/metabolismo , Linfocitos T/citología , Linfocitos T/metabolismo , Células Cultivadas , Técnicas de Cocultivo , Citometría de Flujo , Enfermedad Injerto contra Huésped/inmunología , Trasplante de Células Madre Hematopoyéticas , Humanos , Leucocitos Mononucleares/inmunología
10.
BMJ Open ; 13(9): e073049, 2023 09 05.
Artículo en Inglés | MEDLINE | ID: mdl-37669841

RESUMEN

INTRODUCTION: Medical patients, admitted acutely to hospital, are at risk of venous thromboembolism (VTE). Clinical guidelines advise thromboprophylaxis prophylaxis for those at high risk of VTE. VTE is a common sequela of cancer, but guidelines take little consideration of cancer as an independent risk factor and their utility in palliative care patients is unclear. The hospice inpatient deep vein thrombosis (DVT) detection study (HIDDen) reported a 28% prevalence of asymptomatic iliofemoral DVT in hospice patients of poor performance status (PS) and prognosis, calling into question the utility of thromboprophylaxis in the palliative care setting. However, the majority of cancer inpatients receiving palliative care are admitted to hospital through the acute medical setting, yet their risk factors for VTE may differ from those admitted to hospices. OBJECTIVE: To better understand the prevalence and behaviours of VTE in patients with cancer receiving palliative care who are admitted as an acute medical emergency. DESIGN: Multicentre, observational cohort study. SETTING: Secondary care acute hospitals in South Wales, UK. PATIENTS: We plan to recruit 232 patients≥18 years old with a diagnosis of incurable cancer, and/or receiving palliative or best supportive care who are admitted acutely to hospital. Patients will be followed up for a maximum of 6 months following registration. PRIMARY OUTCOME: Presence of lower extremity DVT. SECONDARY OUTCOMES: Symptom burden attributed to DVT or pulmonary embolism, patient PS, patient demographics and development of new VTE within 90 days of registration. ANALYSIS: The study statistical analysis plan will document analysis, methodology and procedures. ETHICS AND DISSEMINATION: Ethical approval was obtained from the Wales Research Ethics Committee, reference 22/WA/0037 (IRAS 306352)-the main trial results will be analysed as soon as practically possible and the publication shared with investigators and on sponsor website; applications to access trial data will be subject to sponsor review process.


Asunto(s)
Hospitales para Enfermos Terminales , Neoplasias , Tromboembolia Venosa , Humanos , Adolescente , Cuidados Paliativos , Anticoagulantes , Pacientes Internos , Estudios Observacionales como Asunto
11.
PEC Innov ; 3: 100231, 2023 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-38076485

RESUMEN

Objective: Obstetric ultrasound scans provide real-time results. In some organisations and countries, the immediate communication of results by sonographers to patients is standard practice, but there is a lack of evidence-based training to support them with this challenging task. This pilot study evaluated a novel communication coaching intervention to improve sonographer communication. Methods: Coaches met with sonographers(N = 15) three times. Sonographers collected three audio recordings of scans involving unexpected news communication at baseline(R1), post-Session 1(R2) and post-Session 2(R3), which were rated for communication skills. Participants self-reported communication confidence and burnout before(T1) and after(T2) the intervention. Feedback was collected at T2. Data were analysed using paired-samples t-tests with bootstrapped significance estimates. Results: N = 10 sonographers completed the intervention. There were significant increases in communication skills(R1 m = 4.85, SD = 1.07; R3 m = 6.73, SD = 1.80, p = 0.003) and communication confidence(T1 m = 28.00, SD = 6.27; T2 m = 32.80, SD = 6.05, p = 0.005). There were no significant changes in burnout(p > 0.05). All respondents said they would recommend the intervention and most strongly agreed it was engaging(n = 8; 89%) and imparted useful skills(n = 8; 89%). Conclusion: Communication coaching is an acceptable, potentially effective tool for improving communication of unexpected news by sonographers in ultrasound. Innovation: This is the first evaluation of an intervention to support obstetric sonographers with news delivery.

12.
Rehabil Psychol ; 68(2): 146-154, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36892883

RESUMEN

PURPOSE/OBJECTIVE: The stressors experienced by parents of children admitted for inpatient rehabilitation likely place parents at high risk for poor psychosocial adjustment; however, no research to date has described parent adjustment during the acute phase of a child's inpatient rehabilitation hospitalization. The present study evaluates parent adjustment processes through the lens of the transactional stress and coping model by assessing a specific cognitive process (i.e., illness uncertainty) and coping methods (i.e., self-care), which may influence parent adjustment during the inpatient rehabilitation. RESEARCH METHOD/DESIGN: Forty-two parents (47.6% White, 86% female) of children newly admitted to a pediatric inpatient rehabilitation hospital were recruited. Parents completed self-report measures of demographics, illness uncertainty, self-care, and depressive, anxious, and posttraumatic stress symptoms. RESULTS: Sixty-six percent of parents reported clinically significant symptoms in at least one domain of distress. Illness uncertainty accounted for 22.2%-42.4% of the variance in parent distress symptoms, after controlling for parent and child age, parent trauma history, and income. Self-care accounted for 35.1%-51.9% of the variance in parent distress symptoms, when accounting for parent and child age, parent trauma history, and income. CONCLUSIONS/IMPLICATIONS: More than half of parents endorsed clinical elevations in anxiety, depression, and/or posttraumatic stress. Illness uncertainty and self-care are likely very important clinical topics to discuss with parents. Future research should seek to not only assess how parent distress changes across time, but also how other cognitive processes, as well as environmental and family factors influence the parent adjustment process. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Pacientes Internos , Autocuidado , Niño , Humanos , Femenino , Masculino , Incertidumbre , Padres/psicología , Ansiedad/psicología , Estrés Psicológico
13.
Ultrasound ; 31(4): 273-283, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37929254

RESUMEN

Introduction: Despite widespread recognition that communicating unexpected news during obstetric ultrasound examinations is challenging, there is a dearth of research investigating how to teach evidence-based communication to sonographers. Communication Coaching is a supportive, positive method that has previously been associated with improvements in communication, patient satisfaction, and reduced burnout in clinicians. However, to date, no study has coached sonographers. This study explored stakeholders' views on a proposed Communication Coaching intervention and used these data to adapt the intervention for use with qualified obstetric sonographers. Methods: Semi-structured interviews were conducted with people who have a vested interest in unexpected news delivery and thematic analysis was conducted on the data. Eight sonographers, six people with lived experience of receiving unexpected news and six representatives from third-sector organisations who support expectant parents were recruited (18 women; 2 men, aged between 21 and 75 years). Results: Participants viewed the planned Communication Coaching intervention favourably and suggested adaptations. The two main themes were (1) the practicalities of coaching, and (2) content. The first theme had four subthemes: (a) brief and flexible structure, (b) online modality, (c) sensitive and positive coach and (d) organisational awareness. The second theme had three subthemes: (a) specific language and behaviour recommendations, (b) adaptable to different service-users and situations and (c) confer relevant emotional skills and techniques. Conclusions: Communication Coaching could be a feasible and acceptable intervention for qualified sonographers if specific, limited adaptations are made as recommended by the stakeholders. Further evaluation of the intervention in practice is necessary.

14.
Sarcoma ; 2012: 987239, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22315522

RESUMEN

The Ewing sarcoma family of tumors (ESFT) represents an aggressive spectrum of malignant tumour types with common defining histological and cytogenetic features. To evaluate the functional activation of signal transducer and activator of transcription 3 (STAT3) in ESFT, we evaluated its activation in primary tissue sections and observed the functional consequences of its inhibition in ESFT cell lines. STAT3 was activated (tyrosine 705-phosphorylated) in 18 out of 31 primary tumours (58%), either diffusely (35%) or focally (23%). STAT3 was constitutively activated in 3 out of 3 ESFT cell lines tested, and its specific chemical inhibition resulted in complete loss of cell viability. STAT3 inhibition in ESFT cell lines was associated with several consistent changes in chemokine profile suggesting a role of STAT3 in ESFT in both cell survival and modification of the cellular immune environment. Together these data support the investigation of STAT3 inhibitors for the Ewing family of tumors.

15.
Artículo en Inglés | MEDLINE | ID: mdl-36249595

RESUMEN

The British public generally adhered to COVID-19-related restrictions, but as the pandemic drew on, it became challenging for some populations. Parents with young children were identified as a vulnerable group. We collected rich, mixed-methods survey data from 99 UK-based parents (91 mothers) of children under 12, who described their lockdown transgressions. Household mixing was the most prevalent broken rule. Template analysis found that rule breaking was driven by 'ingroup-level' prosocial motivations to protect the mental and social health of family and loved ones, and that parents were 'engaged' decision-makers who underwent careful deliberation when deciding to break rules, making trade-offs, bending rules, mitigating risks, reaching consensus, and reacting to perceived rule injustices. Cumulative link models found that the perceived reasonableness of rule violations was predicted by social norms. Rules were broken by parents not for antisocial reasons, but for 'ingroup-level' prosocial reasons, linked to supporting loved ones.

16.
JMIR Res Protoc ; 11(7): e36658, 2022 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-35896021

RESUMEN

BACKGROUND: Cancer survivors are vulnerable to experiencing symptoms of anxiety and depression and may benefit from accessible interventions focused on improving emotion regulation. CanCope Mind (CM) was developed as an internet-delivered intervention adapted from the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders to improve emotion regulation and support the mental health of cancer survivors. OBJECTIVE: This protocol aims to provide an outline of the CanCope Study, a trial comparing the efficacy of a Unified Protocol-adapted internet-delivered intervention (CM) designed for cancer survivors compared with an active control condition-an internet-delivered healthy lifestyle intervention, CanCope Lifestyle (CL). The primary aim is to assess and compare the efficacy of both interventions in improving emotion regulation, anxiety and depressive symptoms, and quality of life. The secondary aims involve assessing the mechanisms of the CM intervention. METHODS: This trial is a 2-arm randomized controlled trial that allocates cancer survivors to either CM or CL. Both interventions comprise 4 web-based modules and are expected to take participants at least 8 weeks to complete. Participants' mental and physical health will be assessed via self-reported surveys at baseline (T0), between each module (T1, T2, and T3), immediately after the intervention (T4), and at 3-month follow-up (T5). The study aims to recruit 110 participants who have completed T4. RESULTS: The CanCope study began recruitment in September 2020. A total of 224 participants have been randomized to the CM (n=110, 49.1%) and CL (n=114, 50.9%) groups. CONCLUSIONS: This is one of the first trials to develop and investigate the efficacy of a web-based intervention for cancer survivors that specifically targets emotion regulation. TRIAL REGISTRATION: Australian Clinical Trials ACTRN12620000943943; https://tinyurl.com/b3z9cjsp. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/36658.

17.
Contemp Clin Trials ; 120: 106877, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35961468

RESUMEN

BACKGROUND: Insomnia and fatigue symptoms are common in breast cancer. Active cancer treatment, such as chemotherapy, appears to be particularly disruptive to sleep. Yet, sleep complaints often go unrecognised and under treated within routine cancer care. The abbreviated delivery of cognitive behavioral therapy for Insomnia (CBTI) and bright light therapy (BLT) may offer accessible and cost-effective sleep treatments in women receiving chemotherapy for breast cancer. METHODS: The Sleep, Cancer and Rest (SleepCaRe) Trial is a 6-month multicentre, randomized, controlled, 2 × 2 factorial, superiority, parallel group trial. Women receiving cytotoxic chemotherapy for breast cancer at tertiary Australian hospitals will be randomly assigned 1:1:1:1 to one of four, non-pharmacological sleep interventions: (a) Sleep Hygiene and Education (SHE); (b) CBTI; (c) BLT; (d) CBT-I + BLT combined and simultaneously delivered. Each sleep intervention is delivered over 6 weeks, and will comprise an introductory session, a mid-point phone call, and regular emails. The primary (insomnia, fatigue) and secondary (health-related quality of life, rest activity rhythms, sleep-related impairment) outcomes will be assessed via online questionnaires at five time-points: baseline (t0, prior to intervention), mid-point intervention (t2, Week 4), post-intervention (t3, Week 7), 3-months (t4, Week 18), and 6-months follow-up (t5, Week 30). CONCLUSIONS: This study will report novel data concerning the comparative and combined efficacy of CBT-I and BLT during chemotherapy. Findings will contribute to the development of evidence-based early sleep and fatigue intervention during chemotherapy for breast cancer. Clinical trial information Registered with the Australian New Zealand Clinical Trials Registry (http://anzctr.org.au/), Registration Number: ACTRN12620001133921.


Asunto(s)
Neoplasias de la Mama , Trastornos del Inicio y del Mantenimiento del Sueño , Australia/epidemiología , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/terapia , Cognición , Fatiga/etiología , Fatiga/terapia , Femenino , Humanos , Fototerapia , Calidad de Vida , Sueño , Trastornos del Inicio y del Mantenimiento del Sueño/complicaciones , Trastornos del Inicio y del Mantenimiento del Sueño/terapia , Resultado del Tratamiento
18.
Cancer Immunol Immunother ; 60(9): 1243-55, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21553146

RESUMEN

The cancer testis antigen Preferentially Expressed Antigen of Melanoma (PRAME) is overexpressed in many solid tumours and haematological malignancies whilst showing minimal expression in normal tissues and is therefore a promising target for immunotherapy. HLA-A0201-restricted peptide epitopes from PRAME have previously been identified as potential immunogens to drive antigen-specific autologous CTL responses, capable of lysing PRAME expressing tumour cells. CTL lines, from 13 normal donors and 10 melanoma patients, all of whom were HLA-A0201 positive, were generated against the PRAME peptide epitope PRA(100-108). Specific killing activity against PRA(100-108) peptide-pulsed targets was weak compared with CTL lines directed against known immunodominant peptides. Moreover, limiting dilution cloning from selected PRAME-specific CTL lines resulted in the generation of a clone of only low to intermediate avidity. Addition of the demethylating agent 5-aza-2'-Deoxycytidine (DAC) increased PRAME expression in 7 out of 11 malignant cell lines including several B lineage leukaemia lines and also increased class I expression. Pre-treatment of target cells was associated with increased sensitivity to antigen-specific killing by the low avidity CTL. When CTL, as well as of the target cells, were treated, the antigen-specific killing was further augmented. Interestingly, one HLA-A0201-negative DAC-treated line (RAJI) showed increased sensitivity to killing by clones despite a failure of expression of PRAME or HLA-A0201. Together these data point to a general increased augmentation of cancer immunogenocity by DAC involving both antigen-specific and non-specific mechanisms.


Asunto(s)
Antígenos de Neoplasias/inmunología , Azacitidina/análogos & derivados , Inmunoterapia Adoptiva/métodos , Neoplasias/inmunología , Neoplasias/terapia , Linfocitos T Citotóxicos/inmunología , Afinidad de Anticuerpos , Antígenos de Neoplasias/metabolismo , Antimetabolitos Antineoplásicos/farmacología , Azacitidina/farmacología , Línea Celular Tumoral , Citotoxicidad Inmunológica/inmunología , Decitabina , Células HL-60 , Antígeno HLA-A2/inmunología , Humanos , Células K562 , Transfección
19.
Pharmaceutics ; 13(10)2021 Sep 29.
Artículo en Inglés | MEDLINE | ID: mdl-34683878

RESUMEN

Adenoviruses represent exceptional candidates for wide-ranging therapeutic applications, from vectors for gene therapy to oncolytics for cancer treatments. The first ever commercial gene therapy medicine was based on a recombinant adenovirus vector, while most recently, adenoviral vectors have proven critical as vaccine platforms in effectively controlling the global coronavirus pandemic. Here, we discuss factors involved in adenovirus cell binding, entry, and trafficking; how they influence efficiency of adenovirus-based vectors; and how they can be manipulated to enhance efficacy of genetically modified adenoviral variants. We focus particularly on endocytosis and how different adenovirus serotypes employ different endocytic pathways to gain cell entry, and thus, have different intracellular trafficking pathways that subsequently trigger different host antiviral responses. In the context of gene therapy, the final goal of the adenovirus vector is to efficiently deliver therapeutic transgenes into the target cell nucleus, thus allowing its functional expression. Aberrant or inefficient endocytosis can impede this goal, therefore, it should be considered when designing and constructing adenovirus-based vectors.

20.
Sci Transl Med ; 12(571)2020 11 25.
Artículo en Inglés | MEDLINE | ID: mdl-33239386

RESUMEN

The reprogramming of a patient's immune system through genetic modification of the T cell compartment with chimeric antigen receptors (CARs) has led to durable remissions in chemotherapy-refractory B cell cancers. Targeting of solid cancers by CAR-T cells is dependent on their infiltration and expansion within the tumor microenvironment, and thus far, fewer clinical responses have been reported. Here, we report a phase 1 study (NCT02761915) in which we treated 12 children with relapsed/refractory neuroblastoma with escalating doses of second-generation GD2-directed CAR-T cells and increasing intensity of preparative lymphodepletion. Overall, no patients had objective clinical response at the evaluation point +28 days after CAR-T cell infusion using standard radiological response criteria. However, of the six patients receiving ≥108/meter2 CAR-T cells after fludarabine/cyclophosphamide conditioning, two experienced grade 2 to 3 cytokine release syndrome, and three demonstrated regression of soft tissue and bone marrow disease. This clinical activity was achieved without on-target off-tumor toxicity. Targeting neuroblastoma with GD2 CAR-T cells appears to be a valid and safe strategy but requires further modification to promote CAR-T cell longevity.


Asunto(s)
Neuroblastoma , Receptores Quiméricos de Antígenos , Niño , Humanos , Inmunoterapia Adoptiva , Recurrencia Local de Neoplasia , Neuroblastoma/terapia , Receptores de Antígenos de Linfocitos T/genética , Receptores Quiméricos de Antígenos/genética , Linfocitos T , Microambiente Tumoral
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