A preliminary fastview of mitochondrial protein profile from healthy and type 2 diabetic subjects
| Autor: | Simona Porcu, Annunziata Lapolla, Lucia Biasutto, Mario Zoratti, Francesco Piarulli, Greco Eliana, Daniela Basso, Marco Roverso, Roberta Seraglia, Pietro Traldi |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Centrifugation Type 2 diabetes Mitochondrion MALDI-MS Mitochondrial Proteins mithochondria protein profile Insulin resistance Reference Values Glycation Internal medicine Diabetes mellitus medicine Humans oxidative stress mithochondria isolation method Spectroscopy Aged biology Chemistry Insulin Type 2 Diabetes Mellitus General Medicine Middle Aged medicine.disease Atomic and Molecular Physics and Optics Insulin receptor Endocrinology Diabetes Mellitus Type 2 Biochemistry Case-Control Studies Spectrometry Mass Matrix-Assisted Laser Desorption-Ionization Leukocytes Mononuclear biology.protein Female type 2 diabetes |
| Zdroj: | European journal of mass spectrometry 20 (2014): 307–315. doi:10.1255/ejms.1285 info:cnr-pdr/source/autori:Porcu S. ; Lapolla A. ; Biasutto L.; Zoratti M.; Piarulli F.; Eliana G.; Basso D.; Roverso M.; Seraglia R.; Traldi P./titolo:A preliminary fastview of mitochondrial protein profile from healthy and type 2 diabetic subjects/doi:10.1255%2Fejms.1285/rivista:European journal of mass spectrometry/anno:2014/pagina_da:307/pagina_a:315/intervallo_pagine:307–315/volume:20 |
| DOI: | 10.1255/ejms.1285 |
| Popis: | Type 2 diabetes results from the development of insulin resistance and a concomitant impairment of insulin secretion. Mitochondrial dysfunctions are thought to be the major contributor to the development of various pathologies, including type 1 and type 2 diabetes mellitus. Mitochondrial oxidative stress has been reported in models of both type 1 and type 2 diabetes mellitus and may play a central role in mitochondrial dysfunction. In the present study, we investigated the occurrence of protein alterations, due to the presence of type 2 diabetes, in mitochondria isolated from human peripheral blood mononuclear cells (PBMCs) by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). PBMCs may be suitable for this investigation because they have insulin receptors that quickly respond to changes in insulin concentration, and in the presence of insulin rapidly increase their rates of glucose utilization. In the presence of insulin-resistance conditions, such as type 2 diabetes mellitus, this mechanism is altered and the glycation of cytoplasmic as well as mitochondrial proteins may plausibly appear. Therefore, PBMCs may be useful tools to verify modifications or altered expression of mitochondrial proteins. Human mitochondria were obtained from 32 subjects, 16 healthy controls and 16 type 2 diabetic patients. Two different methods for mitochondria isolation and purification were employed and compared. Some proteins have been found to be differently expressed in the two groups of subjects under investigation and can be classified into two sets: i.e. proteins related to ATP synthase [e.g. 6.8 kDa mitochondrial proteolipid (MLQ); ATP-CF6 ( m/z 12,597)] and proteins related to cell proliferation and apoptosis [e.g. TIMM9 ( m/z 10,378); Bcl-2-like protein 2 ( m/z 20,742)]. |
| Databáze: | OpenAIRE |
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