Clinical Trial: Molecular and Cellular Mechanisms of Lysosomal Storage Diseases

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational

Official Title: Investigation of Molecular and Cellular Mechanisms of Lysosomal Storage Diseases

Brief Summary: The lysosome is a specialized part of the cell that functions to degrade metabolic wastes in the cell. Defects in the functioning of the lysosome result in accumulation and subsequent storage of such metabolic wastes. These defects lead to conditions known as lysosomal storage diseases (LSD). LSDs are caused by inherited genetic mutations and there are over 40 genetically distinct lysosomal storage diseases. Within each specific lysosomal storage disease there are variances in severity of disease, age of onset, and clinical presentation. Though the genetic mutations contributing to the disease have been largely clarified, the molecular and cellular mechanisms that contribute to variations in each distinct LSD remain unclear. With this study we intend to better understand at the cellular and molecular level how the accumulation and storage of metabolic wastes in the lysosome affect the clinical manifestation of LSDs, to detect changes in these mechanisms upon treatment administration, and to correlate these results to genetic information. The knowledge obtained from this research study could lead to better ways to diagnose and treat lysosomal storage diseases.

Detailed Summary:
Sponsor: O & O Alpan LLC

Current Primary Outcome: Correlating genetic mutations with clinical signs and symptoms [ Time Frame: 5 years ]

Genetic information (DNA) will be collected from biological samples (e.g. blood, skin cells) and correlated with clinical signs and symptoms. DNA will be sequenced in order to identify a specific mutation. Fluorescence assay will be performed to measure the enzyme activity of the affected protein. Physical examination will be performed, and supporting test results will be collected for identifying the signs and symptoms of the particular disorder.


Original Primary Outcome: Same as current

Current Secondary Outcome: Associated Immune Pathophysiology [ Time Frame: 5 years ]

Blood will be collected for identifying alterations in the innate and adaptive immune system. Flow cytometry will be used to analyze cell surface and intracellular biomarkers on immune cells such as B-cells, T-cells, eosinophils.


Original Secondary Outcome: Same as current

Information By: O & O Alpan LLC

Dates:
Date Received: November 25, 2013
Date Started: November 2013
Date Completion: March 2018
Last Updated: September 27, 2016
Last Verified: September 2016