Use of surface enhanced laser desorption/ionization-time of flight mass spectrometry (SELDI-TOF MS) to study protein expression in a rat model of cocaine withdrawal

SELDI-TOF MS is an analytical technology that combines chromatography and mass spectrometry. It is being exploited for the measurement of numerous proteins in serum, less often in organ tissue (rarely in brain). We applied SELDI-TOF MS technology to study protein expression in the brain of rats withdrawn from repeated cocaine exposure. Our goals were to optimize sample preparation and ProteinChip„¥ Array protocols for brain tissue, to verify the reproducibility of SELDI-TOF mass spectra, and to determine whether SELDI-TOF MS detects differentially expressed proteins in cocaine- vs. saline-treated rats. Consequently, we have developed an optimal protocol and generated a reproducible spectra with six dominant peaks in all test samples. We have found two peaks (m/z: 5179, 5030) significantly increased (p <. 05) in cocaine-treated rats. In summary, the application of SELDI-TOF MS to the study of protein expression in a rat model of cocaine withdrawal is feasible and potentially informative.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

Master

Grantor

The University of Texas Medical Branch

Year dc:date.issued

2005

Author dc:creator

• Tao Geng

Advisor dc:contributor.advisor

• Kathryn A. Cunningham

Committee members dc:contributor.committeemember

• Xiaodong Cheng
• Norbert K. Herzog
• Mary L. Thomas

• proteomics brain

Statement dc:rights

• Copyright © is held by the author. Presentation of this material on the TDL web site by The University of Texas Medical Branch at Galveston was made possible under a limited license grant from the author who has retained all copyrights in the works.

Language dc:language.iso

eng

Dc Identifier Other

etd-07292005-113525

OAI identifier oai:identifier

oai:utmb-ir.tdl.org:2152.3/198