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Performance of the HBV ELISPOT in the Detection of the T Cellular Immune Response in Patients Infected by HBV or Cured

2016-09-21 20:23:22 | BioPortfolio

Summary

Activation of the immune system against a pathogen can be considered one of the most effective interventions in the field of infectious diseases.

Transgene is developing a therapeutic vaccine "TG1050" for the treatment of patients with chronic and treated Hepatitis B. This biotherapy compound is for the development of T cellular immune response in these patients in order to achieve the total elimination of infected cells.

Therefore it is necessary to have measures of ways to assess accurately and reliably the presence of such a response in the study subjects.

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Conditions

Hepatitis B

Intervention

blood samples are performed to measure active T cellular immune response during a routine visit

Location

Hôpital de la Croix Rousse
Lyon
France
69004

Status

Recruiting

Source

Hospices Civils de Lyon

Results (where available)

View Results

Links

Published on BioPortfolio: 2016-09-21T20:23:22-0400

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Medical and Biotech [MESH] Definitions

Testing erythrocytes to determine presence or absence of blood-group antigens, testing of serum to determine the presence or absence of antibodies to these antigens, and selecting biocompatible blood by crossmatching samples from the donor against samples from the recipient. Crossmatching is performed prior to transfusion.

The body's defense mechanism against foreign organisms or substances and deviant native cells. It includes the humoral immune response and the cell-mediated response and consists of a complex of interrelated cellular, molecular, and genetic components.

Specific assays that measure the migration of cells. They are commonly used to measure the migration of immune cells in response to stimuli and the inhibition of immune cell migration by immunosuppressive factors.

Substances that augment, stimulate, activate, potentiate, or modulate the immune response at either the cellular or humoral level. The classical agents (Freund's adjuvant, BCG, Corynebacterium parvum, et al.) contain bacterial antigens. Some are endogenous (e.g., histamine, interferon, transfer factor, tuftsin, interleukin-1). Their mode of action is either non-specific, resulting in increased immune responsiveness to a wide variety of antigens, or antigen-specific, i.e., affecting a restricted type of immune response to a narrow group of antigens. The therapeutic efficacy of many biological response modifiers is related to their antigen-specific immunoadjuvanticity.

Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow).

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