PERFEXT : a direct method for quantitative assesment of cytokine production in vivo at the local level.

Dublin Core

Title

PERFEXT : a direct method for quantitative assesment of cytokine production in vivo at the local level.

Subject

PERFEXT
ANALISIS QUIMICO CUANTITATIVO
CITOCINAS
BIBLIOGRAFIA NACIONAL QUIMICA
1997

Abstract

A method termed "PERFEXT", based on sequential perfusion and detergent extraction of lymphoid and non-lymphoid organs, has been developed for the quantitative measurement of cytokines produced at a local level in a given tissue. In vivo treatment of mice with Staphylococcus enterotoxin B (SEB) or lipopolysaccharide (LPS) served as the model systems. Interleukin-2 (IL2) and interferon-gamma (IFN gamma) levels were monitored by ELISA analysis of extracted samples. After local footpad (FP) injection with SEB, spleen and serum IL2 levels peaked at 2-4 h, while IL2 levels peaked at around 4-8 h in both FP and popliteal lymph nodes. SEB injection resulted in increased IFN gamma levels both in the FP and the draining lymph node. The detection of cytokines in the intestine allows for the application of the method at mucosal sites as well, provided enzyme inhibitors are present during the extraction procedure. After FP injection with LPS, IFN gamma production was significantly increased in the draining lymph node and was detectable in the FP, whereas IL2 was undetectable in any organ examined. IL2 and IFN gamma could also be detected at the site of elicitation of a delayed-type hypersensitivity reaction following local FP challenge. Local cytokine production correlated with the swelling response, whereas cytokine production in the spleen did not. IL2 peaked early, followed by a late increase in IFN gamma production, corresponding to the maximum swelling. This simple method should prove useful for analysing the production of other cytokines in vivo in distinct anatomical compartments.

Creator

Villavedra, M
Carol, H
Hjulström, M
Holmgrem, J
Czerkinsky, C

Source

Research in Immunology v. 148, no. 4, 1997. -- p. 257-266

Publisher

Elsevier

Date

1997

Rights

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Format

PDF

Language

Inglés

Type

Artículo

Identifier

doi:10.1016/S0923-2494(97)80867-X

Document Item Type Metadata

Original Format

PDF
Date Added
September 29, 2015
Collection
Bibliografía Nacional Química
Item Type
Document
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Citation
Villavedra, M et al., “PERFEXT : a direct method for quantitative assesment of cytokine production in vivo at the local level.,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed November 17, 2025, https://riquim.fq.edu.uy/items/show/3484.