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Shen S, Jiang X, Li J, Straubinger RM, Suarez M, Tu C, Duan X, Thompson AC, Qu J. Large-Scale, Ion-Current-Based Proteomic Investigation of the Rat Striatal Proteome in a Model of Short- and Long-Term Cocaine Withdrawal. J Proteome Res 2016; 15:1702-16. [PMID: 27018876 DOI: 10.1021/acs.jproteome.6b00137] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Given the tremendous detriments of cocaine dependence, effective diagnosis and patient stratification are critical for successful intervention yet difficult to achieve due to the largely unknown molecular mechanisms involved. To obtain new insights into cocaine dependence and withdrawal, we employed a reproducible, reliable, and large-scale proteomics approach to investigate the striatal proteomes of rats (n = 40, 10 per group) subjected to chronic cocaine exposure, followed by either short- (WD1) or long- (WD22) term withdrawal. By implementing a surfactant-aided precipitation/on-pellet digestion procedure, a reproducible and sensitive nanoLC-Orbitrap MS analysis, and an optimized ion-current-based MS1 quantification pipeline, >2000 nonredundant proteins were quantified confidently without missing data in any replicate. Although cocaine was cleared from the body, 129/37 altered proteins were observed in WD1/WD22 that are implicated in several biological processes related closely to drug-induced neuroplasticity. Although many of these changes recapitulate the findings from independent studies reported over the last two decades, some novel insights were obtained and further validated by immunoassays. For example, significantly elevated striatal protein kinase C activity persisted over the 22 day cocaine withdrawal. Cofilin-1 activity was up-regulated in WD1 and down-regulated in WD22. These discoveries suggest potentially distinct structural plasticity after short- and long-term cocaine withdrawal. In addition, this study provides compelling evidence that blood vessel narrowing, a long-known effect of cocaine use, occurred after long-term but not short-term withdrawal. In summary, this work developed a well-optimized paradigm for ion-current-based quantitative proteomics in brain tissues and obtained novel insights into molecular alterations in the striatum following cocaine exposure and withdrawal.
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Affiliation(s)
- Shichen Shen
- New York State Center of Excellence in Bioinformatics & Life Sciences , Buffalo, New York 14203, United States.,Department of Biochemistry, School of Medicine and Biomedical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States
| | - Xiaosheng Jiang
- Department of Pharmaceutical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States.,New York State Center of Excellence in Bioinformatics & Life Sciences , Buffalo, New York 14203, United States
| | - Jun Li
- Department of Pharmaceutical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States.,New York State Center of Excellence in Bioinformatics & Life Sciences , Buffalo, New York 14203, United States
| | - Robert M Straubinger
- Department of Pharmaceutical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States
| | - Mauricio Suarez
- Department of Psychology, SUNY at Buffalo , Buffalo, New York 14260, United States.,Research Institute on Addictions, SUNY at Buffalo , Buffalo, New York 14203, United States
| | - Chengjian Tu
- New York State Center of Excellence in Bioinformatics & Life Sciences , Buffalo, New York 14203, United States.,Department of Biochemistry, School of Medicine and Biomedical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States
| | - Xiaotao Duan
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology , Beijing 100850, China
| | - Alexis C Thompson
- Department of Psychology, SUNY at Buffalo , Buffalo, New York 14260, United States.,Research Institute on Addictions, SUNY at Buffalo , Buffalo, New York 14203, United States
| | - Jun Qu
- Department of Pharmaceutical Sciences, SUNY at Buffalo , Buffalo, New York 14214, United States.,New York State Center of Excellence in Bioinformatics & Life Sciences , Buffalo, New York 14203, United States
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Gorini G, Adron Harris R, Dayne Mayfield R. Proteomic approaches and identification of novel therapeutic targets for alcoholism. Neuropsychopharmacology 2014; 39:104-30. [PMID: 23900301 PMCID: PMC3857647 DOI: 10.1038/npp.2013.182] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 07/02/2013] [Accepted: 07/04/2013] [Indexed: 01/01/2023]
Abstract
Recent studies have shown that gene regulation is far more complex than previously believed and does not completely explain changes at the protein level. Therefore, the direct study of the proteome, considerably different in both complexity and dynamicity to the genome/transcriptome, has provided unique insights to an increasing number of researchers. During the past decade, extraordinary advances in proteomic techniques have changed the way we can analyze the composition, regulation, and function of protein complexes and pathways underlying altered neurobiological conditions. When combined with complementary approaches, these advances provide the contextual information for decoding large data sets into meaningful biologically adaptive processes. Neuroproteomics offers potential breakthroughs in the field of alcohol research by leading to a deeper understanding of how alcohol globally affects protein structure, function, interactions, and networks. The wealth of information gained from these advances can help pinpoint relevant biomarkers for early diagnosis and improved prognosis of alcoholism and identify future pharmacological targets for the treatment of this addiction.
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Affiliation(s)
- Giorgio Gorini
- Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, TX, USA
| | - R Adron Harris
- Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, TX, USA
| | - R Dayne Mayfield
- Waggoner Center for Alcohol and Addiction Research, The University of Texas at Austin, Austin, TX, USA
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Bough KJ, Amur S, Lao G, Hemby SE, Tannu NS, Kampman KM, Schmitz JM, Martinez D, Merchant KM, Green C, Sharma J, Dougherty AH, Moeller FG. Biomarkers for the development of new medications for cocaine dependence. Neuropsychopharmacology 2014; 39:202-19. [PMID: 23979119 PMCID: PMC3857653 DOI: 10.1038/npp.2013.210] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 06/19/2013] [Accepted: 07/01/2013] [Indexed: 01/20/2023]
Abstract
There has been significant progress in personalized drug development. In large part, this has taken place in the oncology field and been due to the ability of researchers/clinicians to discover and develop novel drug development tools (DDTs), such as biomarkers. In cancer treatment research, biomarkers have permitted a more accurate pathophysiological characterization of an individual patient, and have enabled practitioners to target mechanistically the right drug, to the right patient, at the right time. Similar to cancer, patients with substance use disorders (SUDs) present clinically with heterogeneous symptomatology and respond variably to therapeutic interventions. If comparable biomarkers could be identified and developed for SUDs, significant diagnostic and therapeutic advances could be made. In this review, we highlight current opportunities and difficulties pertaining to the identification and development of biomarkers for SUDs. We focus on cocaine dependence as an example. Putative diagnostic, pharmacodynamic (PD), and predictive biomarkers for cocaine dependence are discussed across a range of methodological approaches. A possible cocaine-dependent clinical outcome assessment (COA)--another type of defined DDT--is also discussed. At present, biomarkers for cocaine dependence are in their infancy. Much additional research will be needed to identify, validate, and qualify these putative tools prior to their potential use for medications development and/or application to clinical practice. However, with a large unmet medical need and an estimated market size of several hundred million dollars per year, if developed, biomarkers for cocaine dependence will hold tremendous value to both industry and public health.
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Affiliation(s)
- Kristopher J Bough
- Division of Basic Neuroscience and Behavioral Research, National Institute on Drug Abuse, Bethesda, MD, USA
| | - Shashi Amur
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Guifang Lao
- Division of Pharmacotherapies and Medical Consequences, National Institute on Drug Abuse, Bethesda, MD, USA
| | - Scott E Hemby
- Department of Physiology & Pharmacology, Wake Forest University, Winston-Salem, NC, USA
| | - Nilesh S Tannu
- Department of Psychiatry and Behavioral Sciences, University of Texas—Houston Medical School, Houston, TX, USA
| | - Kyle M Kampman
- Department of Psychiatry, University of Pennsylvania—School of Medicine, Philadelphia, PA, USA
| | - Joy M Schmitz
- Department of Psychiatry and Behavioral Sciences, University of Texas—Houston Medical School, Houston, TX, USA
| | - Diana Martinez
- Department of Psychiatry, Columbia University/New York State University, New York, NY, USA
| | | | - Charles Green
- Department of Pediatrics, University of Texas—Houston Medical School, Houston, TX, USA
| | - Jyoti Sharma
- Department of Cardiovascular Medicine, University of Texas—Houston Medical School, Houston, TX, USA
| | - Anne H Dougherty
- Department of Cardiovascular Medicine, University of Texas—Houston Medical School, Houston, TX, USA
| | - F Gerard Moeller
- Department of Psychiatry and Pharmacology and Toxicology, Virginia Commonwealth University Medical School, Richmond, VA, USA
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