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Long noncoding RNA (lncRNA) is a kind of noncoding RNA with a length of more than 200 nucleotide units. Numerous research studies have proven that although lncRNAs cannot be directly translated into proteins, lncRNAs still play an important role in human growth processes by interacting with proteins. Since traditional biological experiments often require a lot of time and material costs to explore potential lncRNA-protein interactions (LPI), several computational models have been proposed for this task. In this study, we introduce a novel deep learning method known as combined graph auto-encoders (LPICGAE) to predict potential human LPIs. First, we apply a variational graph auto-encoder to learn the low dimensional representations from the high-dimensional features of lncRNAs and proteins. Then the graph auto-encoder is used to reconstruct the adjacency matrix for inferring potential interactions between lncRNAs and proteins. Finally, we minimize the loss of the two processes alternately to gain the final predicted interaction matrix. The result in 5-fold cross-validation experiments illustrates that our method achieves an average area under receiver operating characteristic curve of 0.974 and an average accuracy of 0.985, which is better than those of existing six state-of-the-art computational methods. We believe that LPICGAE can help researchers to gain more potential relationships between lncRNAs and proteins effectively.
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Proteínas , RNA Longo não Codificante , Humanos , Biologia Computacional/métodos , Proteínas/genética , Proteínas/metabolismo , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Aprendizado ProfundoRESUMO
BACKGROUND: Rhinovirus (RV) infections trigger wheeze episodes in children. Thus, understanding of the lung inflammatory response to RV in children with wheeze is important. OBJECTIVES: This study sought to examine the associations of RV on bronchoalveolar lavage (BAL) granulocyte patterns and biomarkers of inflammation with age in children with treatment-refractory, recurrent wheeze (n = 616). METHODS: Children underwent BAL to examine viral nucleic acid sequences, bacterial cultures, granulocyte counts, and phlebotomy for both general and type-2 inflammatory markers. RESULTS: Despite the absence of cold symptoms, RV was the most common pathogen detected (30%), and when present, was accompanied by BAL granulocytosis in 75% of children. Compared to children with no BAL pathogens (n = 341), those with RV alone (n = 127) had greater (P < .05) isolated neutrophilia (43% vs 16%), mixed eosinophils and neutrophils (26% vs 11%), and less pauci-granulocytic (27% vs 61%) BAL. Children with RV alone furthermore had biomarkers of active infection with higher total blood neutrophils and serum C-reactive protein, but no differences in blood eosinophils or total IgE. With advancing age, the log odds of BAL RV alone were lower, 0.82 (5th-95th percentile CI: 0.76-0.88; P < .001), but higher, 1.58 (5th-95th percentile CI: 1.01-2.51; P = .04), with high-dose daily corticosteroid treatment. CONCLUSIONS: Children with severe recurrent wheeze often (22%) have a silent syndrome of lung RV infection with granulocytic bronchoalveolitis and elevated systemic markers of inflammation. The syndrome is less prevalent by school age and is not informed by markers of type-2 inflammation. The investigators speculate that dysregulated mucosal innate antiviral immunity is a responsible mechanism.
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BACKGROUND: The outbreak of the COVID-19 pandemic has had a profound impact on the circulation of seasonal respiratory viruses. This study aimed to compare the outcomes of SARS-CoV-2 and seasonal viruses in adults hospitalized with severe acute respiratory infection (SARI) during the COVID-19 pandemic. METHODS: This population-based cohort study included patients aged > 18 years hospitalized for SARI in Brazil between February 2020 and February 2023. The primary outcome was in-hospital mortality. A competing risk analysis was used to account for competing events. RESULTS: In total, 2,159,171 patients were included in the study. SARS-CoV-2 was the predominant virus (98.7%). The cumulative incidence of in-hospital mortality was 33.1%, 31.5%, 21.0%, 18.7%, and 18.6%, for patients positive for SARS-CoV-2, adenovirus, RSV, influenza, and other viruses, respectively. SARS-CoV-2 accounted for 99.3% of the deaths. Older age, male sex, comorbidities, hospitalization in the northern region, and oxygen saturation <95% were the common risk factors for death among all viruses. CONCLUSIONS: In this large cohort study, individuals infected with SARS-CoV-2 or adenovirus had the highest risk of mortality. Irrespective of the virus type, older age, male sex, comorbidities, hospitalization in vulnerable regions, and low oxygen saturation were associated with an increased risk of fatality.
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In shotgun proteomics, the proteome search engine analyzes mass spectra obtained by experiments, and then a peptide-spectra match (PSM) is reported for each spectrum. However, most of the PSMs identified are incorrect, and therefore various postprocessing software have been developed for reranking the peptide identifications. Yet these methods suffer from issues such as dependency on distribution, reliance on shallow models, and limited effectiveness. In this work, we propose AttnPep, a deep learning model for rescoring PSM scores that utilizes the Self-Attention module. This module helps the neural network focus on features relevant to the classification of PSMs and ignore irrelevant features. This allows AttnPep to analyze the output of different search engines and improve PSM discrimination accuracy. We considered a PSM to be correct if it achieves a q-value <0.01 and compared AttnPep with existing mainstream software PeptideProphet, Percolator, and proteoTorch. The results indicated that AttnPep found an average increase in correct PSMs of 9.29% relative to the other methods. Additionally, AttnPep was able to better distinguish between correct and incorrect PSMs and found more synthetic peptides in the complex SWATH data set.
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Algoritmos , Aprendizado Profundo , Proteômica/métodos , Espectrometria de Massas em Tandem/métodos , Peptídeos , Software , Bases de Dados de ProteínasRESUMO
Person-generated health data (PGHD) are valuable to study outcomes relevant to everyday living, to obtain information not otherwise available, for long-term follow-up and in situations where decisions cannot wait for traditional clinical research to be completed. While there is no dispute that these data are subject to bias, insights gained may be better than an information void, provided the biases are understood and acknowledged. People will share information known uniquely to them about exposures that may affect drug tolerance, safety and effectiveness, e.g., using non-prescription and complementary medications, alcohol, tobacco, illicit drugs, exercise, etc. Patients may be the best source of safety information when long-term follow-up is needed, e.g., the 5-15-year follow-up required for some gene therapies. Validation studies must be performed to evaluate what people can accurately report and when supplementary confirmation information is needed. But PGHD has already proven valuable in quantifying and contrasting COVID-19 vaccine benefits and risks, and for evaluating disease transmission and the accuracy of COVID-19 testing. Going forward, PGHD will be used for patient-measured and patient-relevant outcomes, including regulatory purposes, and will be linked to broader health data networks using tokenization, becoming a mainstay for signals about risks and benefits for diverse populations.
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OBJECTIVE: Assess the effectiveness of sacral neuromodulation (SNM) versus personalized conservative treatment (PCT) in patients with refractory idiopathic slow-transit constipation (STC). BACKGROUND: Evidence on SNM for idiopathic STC is conflicting and of suboptimal methodological quality. METHODS: The No.2-Trial was a multicenter, open-label, pragmatic, randomized trial performed in 2 Dutch hospitals. Sixty-seven patients with idiopathic STC, a defecation frequency <3 per week and refractory (ie, unresponsive) to maximal conservative (nonoperative) treatment were included. Exclusion criteria included outlet obstruction, rectal prolapse, and previous colon surgery. Patients were randomized (3:2) to SNM (n=41) or PCT (n=26) with randomization minimization between February 21, 2017 and March 12, 2020. In SNM patients, an implantable pulse generator was implanted after a successful 4-week test stimulation. PCT patients received conservative treatment such as laxatives or retrograde colonic irrigation. The primary outcome was treatment success (defined as average defecation frequency ≥3 per week) after 6 months. Secondary outcomes included constipation severity, fatigue, quality of life, and adverse events. Analysis was according to intention-to-treat. RESULTS: After 6 months, 22 (53.7%) patients were successfully treated with SNM versus 1 (3.8%) patient with PCT (odds ratio 36.4, 95% CI 3.4-387.5, P =0.003). At 6 months, SNM patients reported lower constipation severity and fatigue scores ( P <0.001) and improved quality of life compared with PCT ( P <0.001). Eight serious adverse events (6 SNM, 2 PCT) and 78 adverse events (68 SNM, 10 PCT) were reported. CONCLUSIONS: SNM is a promising surgical treatment option in a homogeneous group of adults and adolescents with refractory idiopathic STC. No.2-Trial registered at ClinicalTrials.gov NCT02961582.
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Tratamento Conservador , Terapia por Estimulação Elétrica , Adulto , Adolescente , Humanos , Qualidade de Vida , Constipação Intestinal/terapia , Terapia por Estimulação Elétrica/efeitos adversos , Resultado do TratamentoRESUMO
Drug combination therapies are common practice in the treatment of cancer, but not all combinations result in synergy. As traditional screening approaches are restricted in their ability to uncover synergistic drug combinations, computer-aided medicine is becoming a increasingly prevalent in this field. In this work, a predictive model of potential interactions between drugs named MPFFPSDC is presented, which can maintain the symmetry of drug inputs and eliminate inconsistencies in predictive results caused by different drug inputting sequences or positions. The experimental results show that MPFFPSDC outperforms comparative models in major performance indicators and exhibits better generalization for independent data. Furthermore, the case study demonstrates that our model can capture molecular substructures that contribute to the synergistic effect of two drugs. These results indicate that MPFFPSDC not only offers strong predictive performance, but also has good model interpretability that may provide new insights for the study of drug interaction mechanisms and the development of new drugs.
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Neoplasias , Humanos , Sinergismo Farmacológico , Combinação de Medicamentos , Quimioterapia Combinada , Neoplasias/tratamento farmacológico , Interações MedicamentosasRESUMO
AIM: Sacral neuromodulation (SNM) is a minimally invasive treatment option for functional constipation. Evidence regarding its effectiveness is contradictory, driven by heterogeneous study populations and designs. The aim of this study was to assess the effectiveness, safety and cost-effectiveness of SNM in children and adults with refractory idiopathic slow-transit constipation (STC). METHOD: OVID Medline, OVID Embase, Cochrane Library, the KSR Evidence Database, the NHS Economic Evaluation Database and the International HTA Database were searched up to 25 May 2023. For effectiveness outcomes, randomized controlled trials (RCTs) were selected. For safety outcomes, all study designs were selected. For cost-effectiveness outcomes, trial- and model-based economic evaluations were selected for review. Study selection, risk of bias and quality assessment, and data extraction were independently performed by two reviewers. For the intervention 'sacral neuromodulation' effectiveness outcomes included defaecation frequency and constipation severity. Safety and cost-effectiveness outcomes were, respectively, adverse events and incremental cost-effectiveness ratios. RESULTS: Of 1390 records reviewed, 67 studies were selected for full-text screening. For effectiveness, one cross-over and one parallel-group RCT was included, showing contradictory results. Eleven studies on safety were included (four RCTs, three prospective cohort studies and four retrospective cohort studies). Overall infection rates varied between 0% and 22%, whereas reoperation rates varied between 0% and 29%. One trial-based economic evaluation was included, which concluded that SNM was not cost-effective compared with personalized conservative treatment at a time horizon of 6 months. The review findings are limited by the small number of available studies and the heterogeneity in terms of study populations, definitions of refractory idiopathic STC and study designs. CONCLUSION: Evidence for the (cost-)effectiveness of SNM in children and adults with refractory idiopathic STC is inconclusive. Reoperation rates of up to 29% were reported.
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Constipação Intestinal , Análise Custo-Benefício , Terapia por Estimulação Elétrica , Humanos , Constipação Intestinal/terapia , Constipação Intestinal/economia , Terapia por Estimulação Elétrica/economia , Terapia por Estimulação Elétrica/métodos , Terapia por Estimulação Elétrica/efeitos adversos , Resultado do Tratamento , Adulto , Plexo Lombossacral , Feminino , Criança , Ensaios Clínicos Controlados Aleatórios como Assunto , Masculino , Sacro/inervação , Pessoa de Meia-Idade , Trânsito GastrointestinalRESUMO
We investigated children's positive emotions as an indicator of their underlying prosocial motivation. In Study 1, 2-, and 5-year-old children (N = 64) could either help an individual or watch as another person provided help. Following the helping event and using depth sensor imaging, we measured children's positive emotions through changes in postural elevation. For 2-year-olds, helping the individual and watching another person help was equally rewarding; 5-year-olds showed greater postural elevation after actively helping. In Study 2, 5-year-olds' (N = 59) positive emotions following helping were greater when an audience was watching. Together, these results suggest that 2-year-old children have an intrinsic concern that individuals be helped whereas 5-year-old children have an additional, strategic motivation to improve their reputation by helping.
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Emoções , Motivação , Pré-Escolar , HumanosRESUMO
Postpartum mental health problems are common and have deleterious effects on new mothers and their babies. This study developed a theoretically informed model of the relationship between exposure to images of motherhood in online parenting content and mothers' postpartum mental health. The model was tested using survey data collected from 509 Chinese mothers during their 12-month postpartum period. The results revealed that greater exposure to online public parenting content was indirectly related to lower levels of shame among new mothers via two mediators: the presumed influence of parenting media content on their partners, and the mothers' perceptions of the discrepancy between their actual selves as mothers and their partners' expectations of an ideal mother (i.e. actual/own - ideal/partner self-discrepancy). In contrast, increased exposure to online private parenting content shared by peers was indirectly related to increased levels of shame among new mothers via the mediation of social comparison with parenting media images, and of the mothers' perceptions of the discrepancy between their actual selves as mothers and their own expectations of an ideal mother (i.e. actual/own - ideal/own self-discrepancy). Additionally, new mothers were more likely to experience depressive symptoms and shame if they felt that they fell short of their partners' expectations of an ideal mother. However, increased social support reduced the anxiety and shame that stemmed from this belief.
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Mães , Poder Familiar , Feminino , Lactente , Humanos , Mães/psicologia , Poder Familiar/psicologia , Saúde Mental , Período Pós-Parto/psicologia , AnsiedadeRESUMO
In this study, we surveyed low-income elderly people in Hong Kong and their family or friends to test a dual-path model with which we identified how misinformation in the media reached elderly people and how the elderly people's perception and acceptance of coronavirus disease 2019 (COVID-19) vaccines were influenced. The findings suggest that elderly people's own exposure to erroneous information regarding vaccines and COVID-19 in the media was positively associated with their misperceptions. In addition, their family or friends, who also received misinformation from the media, were found to relay the misleading or erroneous information to the elderly people, indicating a two-step flow of media influence. While previous studies have predominantly focused on the direct influence of misinformation in the media, our study suggests that social influence can also mediate the influence of misinformation in the media and negatively impacts elderly people's perceptions of COVID-19 vaccines.
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COVID-19 , Mídias Sociais , Vacinas , Humanos , Idoso , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19/uso terapêutico , SARS-CoV-2 , Intenção , ComunicaçãoRESUMO
The occurrence of pathogens in discharged wastewater effluent may constitute potential public health risks. This study assessed the physicochemical and bacteriological characteristics of water samples taken from the Wupa River in Abuja, Nigeria, which receives the final effluent of the Wupa Wastewater Treatment Plant. Sixty sewage/water samples were collected over 12 months from five sampling points. Coliform bacteria and Escherichia coli were simultaneously enumerated using the membrane filtration technique and Chromocult Coliform Agar. HANNA multiparameter metre was used to measure the physicochemical parameters including temperature, pH, electrical conductivity (EC), dissolved oxygen (DO) and total dissolved solids (TDS). Results of the bacteriological analysis showed that impermissible high mean counts of E. coli (≥ 1.2 × 104 CFU/100 ml) and total coliforms (≥ 5.4 × 104 CFU/100 ml) were detected in 95% and 100% of the water samples respectively. These values exceed the acceptable standard limits. The mean values of physicochemical parameters ranged from 6.3 to 8.7, 20.9 to 27.3 °C, 116 to 325.0 µS/cm, 1.3 to 11.4 mg/l and 98.0 to 180.0 mg/l for pH, temperature, EC, DO and TDS respectively, with all conforming to international and national standards. Wupa River seems to have a minor negative environmental impact, per the physicochemical data obtained in this study. However, the high counts of faecal indicator bacteria demonstrated in the effluent samples were higher than those of the river at both upstream and downstream sites, implying that the river microbial load may increase to constitute an unchecked environmental hazard. Adequate disinfection of the Wupa plant effluent before discharge into the Wupa River is imperative.
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Monitoramento Ambiental , Purificação da Água , Monitoramento Ambiental/métodos , Escherichia coli , Nigéria , Rios/química , ÁguaRESUMO
The role of microbiota:immune system dysregulation in the etiology of colorectal cancer (CRC) is poorly understood. CRC develops in gut epithelium, accompanied by low level inflammatory signaling, intestinal microbial dysbiosis and immune dysfunction. We examined populations of intraepithelial lymphocytes in non-affected colonic mucosa of CRC and healthy donors and circulating immune memory to commensal bacterial species and yeasts. γδ T cells and resident memory T cells, populations with a regulatory CD39-expressing phenotype, were found at lower frequencies in the colonic tissue of CRC donors compared to healthy controls. Patterns of T cell proliferative responses to a panel of commensal bacteria were distinct in CRC, while B cell memory responses to several bacteria/yeast were significantly increased, accompanied by increased proportions of effector memory B cells, transitional B cells and plasmablasts in blood. IgA responses to mucosal microbes were unchanged. Our data describe a novel immune signature with similarities to and differences from that of inflammatory bowel disease. They implicate B cell dysregulation as a potential contributor to parainflammation and identify pathways of weakened barrier function and tumor surveillance in CRC-susceptible individuals.
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Neoplasias Colorretais , Microbiota , Bactérias , Neoplasias Colorretais/patologia , Disbiose/microbiologia , Humanos , Imunoglobulina A , Mucosa Intestinal , Células T de MemóriaRESUMO
OBJECTIVE: Different treatment options are available and feasible for various vascular surgical disorders. Hence, vascular surgery seems an area par excellence for shared decision making (SDM), in which clinicians incorporate the patient's preferences into the final treatment decision. However, current SDM levels in vascular surgical outpatient clinics are below expectations. To improve this, different decision support tools (DSTs) have been developed: online patient decision aids, consultation cards, and decision cards. METHODS: This stepped wedge cluster randomised trial was conducted in 13 Dutch hospitals. Besides the developed DSTs, training on how to apply SDM during the clinician patient encounter was used in this study. Data were obtained via questionnaires and audio recordings. The primary outcome was the OPTION-5 score, an objective tool to assess the level of SDM, expressed as a percentage of exemplary performance. Main secondary outcomes were patients' disease specific knowledge, consultation duration, and treatment choice. Factors influencing OPTION-5 scores were studied using linear regression analysis. RESULTS: Included in the study were 342 patients with an abdominal aortic aneurysm (AAA; n = 87), intermittent claudication (IC; n = 143), or varicose veins (VV; n = 112). Audiotapes of 395 consultations were analysed. Overall the mean OPTION-5 score significantly improved from 28.7% to 37.8% (mean difference 9.1%, 95% CI 6.5% - 11.8%) after implementation of the DSTs. Also, patient knowledge increased significantly (median increase: 13%, effect size: 0.13, p = .025). The number of patients choosing non-surgical treatment choices increased, with 21.4% to 28.8% for patients with AAA and doubled (16.0% to 32.0%) among patients with IC. For surgeons, the SDM training and for patients the decision aid significantly and independently increased OPTION-5 scores (p < .001 and p = .047, respectively). CONCLUSION: Introducing DSTs improves the level of shared decision making in vascular surgery, improves patient knowledge, and shifts their preference towards more non-surgical treatments. The SDM training for clinicians and the decision aid for patients appeared the most effective means of improving SDM. TRIAL REGISTRATION: NTR6487.
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Tomada de Decisão Compartilhada , Participação do Paciente , Tomada de Decisões , Humanos , Inquéritos e Questionários , Procedimentos Cirúrgicos VascularesRESUMO
This study proposes a theory-driven model to concurrently examine the cognitive and emotional factors that motivate vaccine supporters to combat erroneous online anti-vaccination information. The model was tested using data from a web survey of 599 vaccination supporters in the United States. The vaccine supporters reported greater support for government regulation of misinformation when they perceived greater susceptibility among the general public to the influence of misinformation. Surprisingly, the perceived severity of the influence was inversely related to respondents' intention to correct misinformation. In addition, perceived susceptibility to the influence of anti-vaccine misinformation and perceived severity of its influence on others induced negative emotions that included anticipated guilt and anger. The negative emotions in turn motivate vaccine supporters to attitudinally support government's media restriction or behaviorally correct the online misinformation.
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Mídias Sociais , Vacinas , Ira , Comunicação , Humanos , Inquéritos e Questionários , Estados Unidos , Vacinação/psicologiaRESUMO
Lead is a common environmental toxicant associated greatly with hematological and hormonal imbalance, biochemical alterations, and reproductive abnormalities. This study was conducted to evaluate the effects of D-ribose-L-cysteine (DRLC) on hematobiochemical and reproductive toxicity associated with lead acetate exposure in adult female Wistar rats. Thirty-two adult female Wistar rats (165 ± 20 g) were divided into four groups (n = 8). Group A received normal saline as placebo; Group B received 100 mg/kg BW of lead acetate only; Group C received 100 mg/kg BW of lead acetate and 10 mg/kg BW DRLC (low dose); Group D received 100 mg/kg BW of lead acetate and 30 mg/kg BW of DRLC (high dose). All administration was done via oral gavage for 42 days, thereafter animals were sacrificed; serum was obtained from the blood collected for analysis, ovaries, and uterus was harvested for analysis. The lead acetate only group showed a significant difference in hematological indices relative to control. Additionally, there was a significant decrease in body weight, sodium dismutase, catalase, reduced glutathione, progesterone with a corresponding increase in ovarian weight, MDA, FSH, and LH among the lead acetate only group relative to the control. Histological observation showed atretic antral follicles, with detached granulosa cells, pyknotic nuclei in the granulosa wall in the ovaries of the lead-exposed only group compared to the control. Co-administration of DRLC and lead attenuate the toxicity of lead exposure by restoring the hematological values, biochemical parameters, hormone profile, and morphology of the ovary. Exposure to lead acetate causes deleterious toxicity to hematological and reproductive functions which were ameliorated DRLC supplementation through its antioxidant mechanisms.
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Chumbo , Ovário , Acetatos/toxicidade , Animais , Cisteína/análogos & derivados , Feminino , Chumbo/metabolismo , Chumbo/toxicidade , Ovário/metabolismo , Estresse Oxidativo , Ratos , Ratos Wistar , TiazolidinasRESUMO
Pen shell species such as Pinna bicolor and Pinna deltodes are found in the muddy region associated with intertidal seagrass in the coastal area of Pudupattinam. The pen shell is one of the sources of animal protein-rich, thereby encouraging the community of pen shells and their study worldwide. The water samples were collected for a year between January to December 2016 and analysed. Salinity (30.1-31.5), pH (8.1-8.2), EC value (39.79 103-46.09103 mho), turbidity 25-54 NTU, TSS value (5.51-108 mg/l), DO (4.45-5.74 ml/l), BOD (0.175 -1.05 mg/l), chemical oxygen demand (9.6-39.1 mg/l), chloride 14,276.8-16,124.9 mg/l), sulphate (1975.3-25 mg/l), ammonia (0.022-0.112 µm/l), inorganic phosphate (0.754 µm/l and maximum 1.568 µm/l), total nitrogen (10.829-29.509 µm/l), total phosphate (1.76-3.174 µm/l) and silicate (42.264-64.121 µm/l). Minimum and maximum water temperature ranges (26.9-30.6 °C) were recorded. A total of 623 Pinna bicolor and 1341 Pinna deltodes were collected during the same time and consisted of 305 males and 318 females and 558 males and 783 females, respectively. The improvements in the parameters of physico-chemical and statistical analysis have been shown to have a minor effect on the distribution of these two species in the present research, as environmental factors were not sufficient to influence their distribution.
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Baías , Qualidade da Água , Animais , Monitoramento Ambiental , Amônia/análise , Cloretos/análise , Nitrogênio/análise , Fosfatos/análise , Sulfatos/análise , ÍndiaRESUMO
TGN1412, a superagonist monoclonal antibody targeting CD28, caused cytokine storm in six healthy volunteers in a first-in-man study in 2006. Despite clinical improvement and termination of the cytokine release syndrome within days, anemia persisted in all patients with hemoglobin reaching baseline levels as much as 6 months later. Granulocytic dysplasia continued for 20 days in association with increased expression of CD69 and IL-4, but reduced IL-10; with resolution, this profile reversed to higher IL-10 expression and counter-balanced circannual cycling of IL-4 and IL-10 thereafter over 7 months. Along with immune cell subset and cytokine correlates monitored over 2 years, these observations offer unique insights into the expected changes in myelopoiesis and natural resolution in otherwise healthy young individuals in response to acute inflammation and cytokine storm in the absence of concomitant infection or comorbidity.
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Anticorpos Monoclonais Humanizados/efeitos adversos , Antígenos CD28/imunologia , Síndrome da Liberação de Citocina/imunologia , Inflamação/imunologia , Leucócitos Mononucleares/imunologia , Mielopoese/imunologia , Adulto , Síndrome da Liberação de Citocina/induzido quimicamente , Citocinas/metabolismo , Humanos , Inflamação/induzido quimicamente , Masculino , Mielopoese/efeitos dos fármacos , Adulto JovemRESUMO
Following infusion of the anti-CD28 superagonist monoclonal antibody TGN1412, three of six previously healthy, young male recipients developed gastrointestinal irritability associated with increased expression of 'gut-homing' integrin ß7 on peripheral blood αßT cells. This subset of patients with intestinal symptoms also displayed a striking and persistent expansion of putative Vδ2+ γδT cells in the circulation which declined over a 2-year period following drug infusion, concordant with subsiding gut symptoms. These data demonstrate that TGN1412-induced gastrointestinal symptoms were associated with dysregulation of the 'gut-homing' pool of blood αß and γδT cells, induced directly by the antibody and/or arising from the subsequent cytokine storm.
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Anticorpos Monoclonais Humanizados/efeitos adversos , Antígenos CD28/imunologia , Síndrome da Liberação de Citocina/imunologia , Gastroenteropatias/imunologia , Leucócitos Mononucleares/imunologia , Receptores de Antígenos de Linfócitos T alfa-beta/imunologia , Receptores de Antígenos de Linfócitos T gama-delta/imunologia , Adulto , Síndrome da Liberação de Citocina/induzido quimicamente , Citocinas/metabolismo , Gastroenteropatias/induzido quimicamente , Humanos , Masculino , Adulto JovemRESUMO
Cytokine storm can result from cancer immunotherapy or certain infections, including COVID-19. Though short-term immune-related adverse events are routinely described, longer-term immune consequences and sequential immune monitoring are not as well defined. In 2006, six healthy volunteers received TGN1412, a CD28 superagonist antibody, in a first-in-man clinical trial and suffered from cytokine storm. After the initial cytokine release, antibody effect-specific immune monitoring started on Day + 10 and consisted mainly of evaluation of dendritic cell and T-cell subsets and 15 serum cytokines at 21 time-points over 2 years. All patients developed problems with concentration and memory; three patients were diagnosed with mild-to-moderate depression. Mild neutropenia and autoantibody production was observed intermittently. One patient suffered from peripheral dry gangrene, required amputations, and had persistent Raynaud's phenomenon. Gastrointestinal irritability was noted in three patients and coincided with elevated γδT-cells. One had pruritus associated with elevated IgE levels, also found in three other asymptomatic patients. Dendritic cells, initially undetectable, rose to normal within a month. Naïve CD8+ T-cells were maintained at high levels, whereas naïve CD4+ and memory CD4+ and CD8+ T-cells started high but declined over 2 years. T-regulatory cells cycled circannually and were normal in number. Cytokine dysregulation was especially noted in one patient with systemic symptoms. Over a 2-year follow-up, cognitive deficits were observed in all patients following TGN1412 infusion. Some also had signs or symptoms of psychological, mucosal or immune dysregulation. These observations may discern immunopathology, treatment targets, and long-term monitoring strategies for other patients undergoing immunotherapy or with cytokine storm.