Review Article

Pathobiochemical Changes in Diabetic Skeletal Muscle as Revealed by Mass-Spectrometry-Based Proteomics

Table 1

List of major proteomic profiling studies of skeletal muscle tissues from prediabetic and diabetic patients or animal models of type 2 diabetes.

Proteomic study New potential biomarkers References

Proteomic analysis of human vastus lateralis muscle from type 2 diabetic subjectsSelect number of potential markers of diabetes; abnormal phosphorylation of ATP synthase; elevated levels of stress proteins[77, 78]

Proteomic profiling of skeletal muscle biopsy material from patients suffering from type 2 diabetesEstablishment of a large number of muscle-associated signature molecules of type 2 diabetes; changed abundance in various mitochondrial proteins; abnormal phosphorylation of ATP synthase beta-subunit[79ā€“81]

Proteomic profiling of rectus abdominus tissue from obese and morbidly obese women with potential prediabetic side effectsIncreased levels of key glycolytic enzymes suggests an obesity-related compensatory glycolytic shift in muscle metabolism[87]

Proteomic analysis of gastrocnemius muscle from the nonobese Goto-Kakizaki rat model of type 2 diabetesChanges in muscle proteins associated with the contractile apparatus, the antioxidant defense system, detoxification mechanisms, the cellular stress response, glucose metabolism, fatty acid utilization, nucleotide metabolism, and amino acid metabolism[82, 83]

Subproteomic survey of the muscle mitochondria-enriched fraction from the non-obese Goto-Kakizaki rat model of type 2 diabetesDifferential expression of various mitochondrial marker proteins agrees with the idea that mitochondrial dysregulation plays a role in type 2 diabetes[84]

Comparative proteomic study of fenofibrate-dependent protein expression in skeletal muscle from type 2 diabetic OLETF ratsIncreased levels of the functionally unknown muscle protein C11orf59 in a fenofibrate-dependent manner in diabetic rat muscle[85]

Proteomic analysis of obese and potentially prediabetic animal modelsGenerally perturbed protein expression levels in obese muscles, affecting especially metabolic enzymes[88ā€“92]