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Varicella-zoster immune globulin for the prevention of chickenpox. Recommendations of the Immunization Practices Advisory Committee, Centers for Disease Control.

This is the first statement by the Immunization Practices Advisory Committee on the use of varicella-zoster immune globulin ( VZIG ). Prior recommendations have been made by the manufacturer in cooperation with the Centers for Disease Control and approved by the Office of Biologics, National Center for Drugs and Biologics, U.S. Food and Drug Administration. Because of exceedingly limited supplies, VZIG use has been restricted to proven high-risk individuals--for prophylaxis against chickenpox in immunocompromised children and prevention of postnatal chickenpox following intrauterine exposure.

Acquired cell-mediated immunodepression in acute Chagas' disease.

In this study two groups of patients with acute Chagas' disease were identified. Group one consisted of five patients with apparent acute Chagas' disease. These patients showed symptoms and signals of an acute illness, such as high fever and enlarged spleen. One of these patients developed severe myocarditis and heart failure. Group two consisted of seven patients with inapparent acute Chagas' disease. This was a nonclinical entity, not perceived by the patient who did not seek medical care. The diagnosis was made by the shift of a serologic test which indicates the presence of immunoglobulin

Inflammaging in melanoma: Precision control for optimizing immune checkpoint inhibition.

Aging is a major risk factor for melanoma and is accompanied by a chronic, low-grade inflammatory state termed "inflammaging". Although inflammation is essential for host defense and antitumor immunity, not all inflammatory states are beneficial. Instead, inflammaging can drive immune dysfunction and impair responses to immune checkpoint inhibitors (ICIs). ICIs have revolutionized the treatment of advanced melanoma; however, durable clinical benefit is limited to a subset of patients, and immune-related adverse events remain a major challenge. These limitations highlight the need to better und

Transcutaneous immunization with a novel lipid-based adjuvant protects against Chlamydia genital and respiratory infections.

Mucosal adjuvants are important to overcome the state of immune tolerance normally associated with mucosal delivery and to enhance adaptive immunity to often-weakly immunogenic subunit vaccine antigens. Unfortunately, adverse side effects of many experimental adjuvants limit the number of adjuvants approved for vaccination. Lipid C is a novel, non-toxic, lipid oral vaccine-delivery formulation, developed originally for oral delivery of the live Mycobacterium bovis Bacille Calmette-Guerin (BCG) vaccine. In the present study, murine models of chlamydial respiratory and genital tract infections w…

Intraperitoneal immunization led to T cell hyporesponsiveness to Helicobacter pylori infection in mice.

During Helicobacter pylori infection, T cell response is critical in the development of active gastritis and in protective immunity against infection. We studied gastric inflammation and T cell response in H. pylori-challenged mice following an intraperitoneal immunization, using whole H. pylori lysate (HpAg) in the absence of adjuvants. H. pylori-challenged mice without immunization developed moderate to severe gastric inflammation, and splenocytes from these mice produced Th1 polarizing cytokines in response to HpAg and Con A during the acute infection. On the other hand, immunized-challenge

STIMULUS-MDS2 design and rationale: a phase III trial with the anti-TIM-3 sabatolimab (MBG453) + azacitidine in higher risk MDS and CMML-2.

Patients with higher-risk myelodysplastic syndromes (MDS) and chronic myelomonocytic leukemia (CMML) unfit for hematopoietic stem cell transplantation have poor outcomes. Novel therapies that provide durable benefit with favorable tolerability and clinically meaningful improvement in survival are needed. T-cell immunoglobulin domain and mucin domain-3 (TIM-3) is an immuno-myeloid regulator expressed on immune and leukemic stem cells in myeloid malignancies. Sabatolimab is a novel immunotherapy targeting TIM-3 with a potential dual mechanism of reactivating the immune system and directly target

An immunometabolism subtyping system identifies S100A9+ macrophage as an immune therapeutic target in colorectal cancer based on multiomics analysis.

Immunometabolism in the tumor microenvironment (TME) and its influence on the immunotherapy response remain uncertain in colorectal cancer (CRC). We perform immunometabolism subtyping (IMS) on CRC patients in the training and validation cohorts. Three IMS subtypes of CRC, namely, C1, C2, and C3, are identified with distinct immune phenotypes and metabolic properties. The C3 subtype exhibits the poorest prognosis in both the training cohort and the in-house validation cohort. The single-cell transcriptome reveals that a S100A9+ macrophage population contributes to the immunosuppressive TME in C

An unusual case of checkpoint-inhibitor-induced pleuropericarditis.

INTRODUCTION: Pembrolizumab is an immune checkpoint inhibitor that promotes effector T-cell functions on malignant cells by binding to programmed cell death protein 1 (PD-1). Pembrolizumab is well tolerated in most cases with an adverse event profile consisting mainly of pruritus, fatigue, and anorexia. Cardiotoxicity comprises 1% of the total adverse events. CASE REPORT: We present a case of a 64-year-old female with non-small cell lung cancer (NSCLC) who developed pleuropericarditis following pembrolizumab therapy. MANAGEMENT & OUTCOME: The patient was successfully managed with colchicine,

[Vaccination Against COVID-19 in Patients Treated with Psychotropic Drugs].

Vaccines against SARS-CoV-2 have been available in the European Union since December 2020. Persons suffering from mental illness have an increased risk of a severe or fatal course following an infection with SARS-CoV-2. Thus, the question arises to what extent interactions between the newly approved vaccines and psychotropic drugs may be expected. Data on the tolerability and efficacy of vaccines against SARS-CoV-2 under treatment with psychotropic drugs are not available to date - however, potential interactions can be derived from previous investigations on vaccines against other pathogens,

Psoriasis Exacerbation after Candida Antigen Immunotherapy Injection.

BACKGROUND: Immunotherapy as wart treatment has been proposed as a successful and well-tolerated treatment option. However, as their action is not confined to the site of injection, the activation of the immune system in a way may alter the immune state of the patient. CASE PRESENTATION: A case of 29-year-old patient who experienced psoriasis exacerbation and psoriatic arthritis within days following Candida antigen immunotherapy injection for resistant filiform wart management. CONCLUSION: Candida antigen injection may cause psoriasis exacerbation, as TNFα and subsequent T-helper 1 inductio

The multiple faces of autoimmune/immune-mediated myocarditis in children: a biopsy-proven case series treated with immunosuppressive therapy.

The role of immunosuppressive therapy (IT) in paediatric autoimmune/immune-mediated myocarditis remains poorly defined. To explore its role, we present a series of three consecutive paediatric patients with biopsy-proven, virus negative, autoimmune/immune-mediated myocarditis, with distinct clinical and pathological features, who have been successfully treated with IT, a 14-year-old boy with Loeffler's fibroblastic parietal endomyocarditis, a 6-year-old child with celiac disease with chronic active lymphocytic myocarditis, and a 13-year-old boy with long-standing heart failure and active lymph

Immediate and Delayed Hypersensitivity Reactions to Proton Pump Inhibitors: Evaluation and Management.

PPIs are among the most commonly administered medications in the USA and are generally well tolerated. Immediate and delayed immune-mediated hypersensitivity reactions are rare but increasingly recognized adverse effects of proton pump inhibitors (PPIs). Immediate hypersensitivity reactions can occur due to IgE-mediated hypersensitivity to PPIs and can be evaluated by immediate hypersensitivity skin testing and oral provocation challenge testing. A desensitization protocol can be used when PPI use cannot be avoided in an allergic patient. Delayed hypersensitivity reactions to PPIs have also be

Safety and immunogenicity of IMVAMUNE, a promising candidate as a third generation smallpox vaccine.

A Phase I trial was performed to investigate the safety and immunogenicity of the third generation smallpox vaccine MVA-BN (IMVAMUNE), a highly attenuated clone derived from the Modified Vaccinia Virus Ankara strain 571, in naive and pre-immunized subjects. A total of 86 healthy subjects received the vaccine in five groups using different doses and routes of administration. All 38 subjects seroconverted in the groups receiving the highest dose (10(8) TCID50). All vaccinations were well tolerated with mainly mild or moderate pain at the injection site being the most frequent symptom. The result

Scrub typhus vaccine candidate Kp r56 induces humoral and cellular immune responses in cynomolgus monkeys.

A truncated recombinant 56-kDa outer membrane protein of the Karp strain of Orientia tsutsugamushi (Kp r56) was evaluated in cynomolgus monkeys (Macaca fascicularis) for immunogenicity and safety as a vaccine candidate for the prevention of scrub typhus. This recombinant antigen induced strong humoral and cellular immune responses in two monkeys and was found to be well tolerated. Antigen-specific immunoglobulin M (IgM) and IgG were produced to almost maximal levels within 1 week of a single immunization. Peripheral blood mononuclear cells from vaccinated animals showed an induction of antigen

Attenuated Salmonella as live oral vaccines against typhoid fever and as live vectors.

Attenuated Salmonella typhi vaccine strain CVD 908, which harbors deletion mutations in aroC and aroD, has been shown to be well-tolerated and highly immunogenic, eliciting impressive serum antibody, mucosal IgA and cell-mediated immune responses. A further derivative prepared by introducing a deletion in htrA (which encodes a heat-shock protein that also has activity as a serine protease in CVD 908 (Chatfield et al., unpublished data) resulted in CVD 908-htrA. In phase 1 clinical trials, CVD 908-htrA appears very attractive as a live oral vaccine candidate. Both CVD 908 and CVD 908-htrA are u

Fasting-Mimicking Diet Is Safe and Reshapes Metabolism and Antitumor Immunity in Patients with Cancer.

In tumor-bearing mice, cyclic fasting or fasting-mimicking diets (FMD) enhance the activity of antineoplastic treatments by modulating systemic metabolism and boosting antitumor immunity. Here we conducted a clinical trial to investigate the safety and biological effects of cyclic, five-day FMD in combination with standard antitumor therapies. In 101 patients, the FMD was safe, feasible, and resulted in a consistent decrease of blood glucose and growth factor concentration, thus recapitulating metabolic changes that mediate fasting/FMD anticancer effects in preclinical experiments. Integrated

Совпадение в полном тексте источника
… Future prospects for CD8(+) regulatory T cells in immune tolerance . Immunol Rev 2019 ; 292 : 209 – 24 . 31593314 10.1111/imr.12812 PMC7027528 24. André F , Ciruelos E , Rubovszky G , Campone M , Loibl S , Rugo HS , . Alpelisib for PIK3CA-mutated, hormone receptor–positive advanced breast cancer . …

Two B-cell epitope vaccines based on uPA effectively inhibit fertility in male mice.

uPA, a trypsin-like serine protease, was found to take active part in male reproduction. Our previous work had demonstrated the antifertility effects of its full length protein immunization, but with immune tolerance and other latent side effects. Here we discovered two effective B-cell epitopes of uPA for male contraception in growth factor-like domain and kringle domain respectively. Together with carrier protein, immunization of these two epitope peptides could induce high titers of specific antibodies in male mice. Significant reduction of fertility was observed in these two groups in mati…

The Attenuated Live Yellow Fever Virus 17D Infects the Thymus and Induces Thymic Transcriptional Modifications of Immunomodulatory Genes in C57BL/6 and BALB/C Mice.

Thymus is involved in induction of self-tolerance in T lymphocytes, particularly due to Aire activity. In peripheral tissues, Treg cells and immunomodulatory molecules, like the major histocompatibility complex (MHC) class Ib molecules, are essential for maintenance of autotolerance during immune responses. Viral infections can trigger autoimmunity and modify thymic function, and YFV17D immunization has been associated with the onset of autoimmunity, being contraindicated in patients with thymic disorders. Aiming to study the influence of YFV17D immunization on the transcriptional profiles of

Recent advances in Toxoplasma gondii immunotherapeutics.

Toxoplasmosis is an opportunistic infection caused by the protozoan parasite Toxoplasma gondii. T. gondii is widespread globally and causes severe diseases in individuals with impaired immune defences as well as congenitally infected infants. The high prevalence rate in some parts of the world such as South America and Africa, coupled with the current drug treatments that trigger hypersensitivity reactions, makes the development of immunotherapeutics intervention a highly important research priority. Immunotherapeutics strategies could either be a vaccine which would confer a pre-emptive immun

Immunology and pathogenesis of canine demodicosis.

Demodex mites colonized the hair follicles and sebaceous glands of mammals millions of years ago and have remained relatively unchanged in this protected ecologic niche since then. The host immune system detects and tolerates their presence. Toll-like receptor-2 of keratinocytes has been demonstrated to recognize mite chitin and to elicit an innate immune response. The subsequent acquired immune response is poorly understood at present, but there is experimental and clinical evidence that this is the main mechanism in the control of mite proliferation. A transgenic mouse model (STAT(-/-) /CD28