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Related Experiment Video

Updated: Jul 12, 2026

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Published on: May 8, 2016

Balancing mucosal immunity: caught between CYLD and Charybdis.

¹Children's Hospital of Pittsburgh, Suite 3765, 3705 Fifth Avenue, Pittsburgh, PA 15213, USA. jay.kolls@chp.edu

|August 29, 2007

Summary

CYLD, a deubiquinating enzyme, was found to repress plasminogen activator inhibitor-1 expression, a key factor in preventing tissue damage during acute lung injury caused by Streptococcus pneumoniae.

Area of Science:

Molecular Biology
Immunology
Pulmonology

Background:

The molecular mechanisms underlying acute lung injury (ALI) induced by Streptococcus pneumoniae remain incompletely understood.
Streptococcus pneumoniae is a common cause of bacterial pneumonia and can lead to severe lung inflammation and injury.

Purpose of the Study:

To elucidate the molecular pathways involved in Streptococcus pneumoniae-induced acute lung injury.
To identify key regulatory molecules that control inflammation and tissue damage in the lungs during pneumococcal infection.

Main Methods:

The study investigated the role of the deubiquitinating enzyme CYLD in the context of acute lung injury.
Experiments likely involved cellular and/or animal models of Streptococcus pneumoniae infection to assess gene expression and protein function.

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Main Results:

CYLD was demonstrated to play a crucial role in regulating the inflammatory response.
Specifically, CYLD was shown to repress the expression of plasminogen activator inhibitor-1 (PAI-1).
PAI-1 is identified as a critical mediator in preventing excessive tissue damage during acute lung injury.

Conclusions:

The deubiquitinating enzyme CYLD acts as a negative regulator in the pathogenesis of acute lung injury.
Repression of plasminogen activator inhibitor-1 by CYLD is a key mechanism for limiting tissue damage in pneumococcal lung infections.