| Protein | Code | Sample | Expression | Assay type | Diabetes type | Potential value of biomarker | References |
| Integrin, alpha 1 | ITGA1 | FFPE Kidney | Up | LCM + LC/MS/MS; IHC | T2D | Diagnostic | [79] | Laminin, beta 2 | LAMB2, LAMS | FFPE Kidney | Up | LCM + LC/MS/MS; IHC | T2D | Diagnostic | [79] | Nephronectin | NPNT, EGFL6L, POEM, and UNQ295/PRO334 | FFPE Kidney | Up | LCM + LC/MS/MS; IHC | T2D | Diagnostic | [79] | Actinin, alpha 4 | ACTN4 | FFPE Kidney | Up | LCM + LC/MS/MS; IHC | T2D | Diagnostic | [79] | C3 | C3, CPAMD1 | FFPE Kidney | Up | LCM + LC/MS/MS; IF | T2D | Diagnostic | [80] | C5b-9 | C5, CPAMD4 | FFPE Kidney | Up | LCM + LC/MS/MS; IF | T2D | Diagnostic | [80] | Fibrinogen α-chain | FGA | FFPE Kidney | Up | LCM + LC/MS/MS; IF | T2D | Diagnostic | [80] | Synaptopodin | SYNPO, KIAA1029 | FFPE Kidney | Up | LCM + LC/MS/MS; IF | T2D | Diagnostic | [80] | Collagen α-1 (I) chain | CO1A1_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Collagen α-1 (III) chain | CO3A1_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Collagen α-2 (I) chain | CO1A2_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Neurosecretory protein VGF | VGF_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Osteopontin | OSTP_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Polymeric immunoglobulin receptor | PIGR_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Serum albumin | ALBU_HUMAN | Urine | Up | CE-MS | T2D | Prognostic | [81] | Sodium/potassium-transporting ATPase γ chain | ATNG_HUMAN | Urine | Down | CE-MS | T2D | Prognostic | [81] | Pro-SAAS | PCSK1_HUMAN | Urine | Up | CE-MS | T2D | Prognostic | [81] | α-2-HS-glycoprotein | FETUA_HUMAN | Urine | Up | CE-MS | T2D | Prognostic | [81] | a-1 acid glycoprotein | AGP | Urine | Up | SDS-PAGE + LC/MS/MS + ELISA | T1D | Prognostic | [82] | Clusterin | CLU, APOJ, CLI, KUB1, and AAG4 | Urine | Comparable | SDS-PAGE + LC/MS/MS + ELISA | T1D | Prognostic | [82] | Progranulin | GRN | Urine | Up | SDS-PAGE + LC/MS/MS + ELISA | T1D | Prognostic | [82] | Tamms-Horsfall glycoprotein | THP | Urine | Up | SDS-PAGE + LC/MS/MS + ELISA | T1D | Prognostic | [82] | Alpha-1-acid glycoprotein 1 | ORM1, AGP1 | Urine | Up | iTRAQ labelling + LC-MS/MS; WB | T2D | Diagnostic | [83] | Alpha-1-antitrypsin | SERPINA1, AAT, PI, PRO0684, and PRO2209 | Urine | Up | iTRAQ labelling + LC-MS/MS; WB | T2D | Diagnostic | [83] | Prostate stem cell antigen | PSCA, UNQ206/PRO232 | Urine | Up | iTRAQ labelling + LC-MS/MS; WB | T2D | Diagnostic | [83] | Ubiquitin ribosomal fusion protein (UbA52) | UBA52, UBCEP2 | Urine | Up | SELDI-TOF/MS, WB | T2D | Diagnostic | [84] | β2-microglobulin | B2M, CDABP0092, and HDCMA22P | Urine | Up | SELDI-TOF/MS, WB, ELISA | T2D | Diagnostic | [84, 85] | Free ubiquitin | UBB, UBC, UBA52, and RPS27A | Urine | Up | SELDI-TOF/MS, WB, ELISA | T2D | Diagnostic | [85] | Histone-lysine N-methyltransferase 2C | KMT2C, HALR, KIAA1506, and MLL3 | Urine exosomes | Up | 2DE + LC/MS/MS | T2D | Diagnostic | [86] | Voltage-dependent anion-selective channel protein 1 | VDAC1, VDAC | Urine exosomes | Down | 2DE + LC/MS/MS | T2D | Diagnostic | [86] | Alpha-1-microglobulin/ bikunin precursor | AMBP, HCP, and ITIL | Urine exosomes | Up | 2DE + LC/MS/MS | T2D | Diagnostic | [86] | Vasorin (glycated) | VASN, SLITL2, UNQ314/PRO357/ PRO1282 | Plasma | Up | LC/MS/MS; WB | T2D | Diagnostic | [87] | Retinol binding protein-4 (glycated) | RBP4, and PRO2222 | Plasma | Up | LC/MS/MS; WB | T2D | Diagnostic | [87] | Lumican (glycated) | LUM, LDC, SLRR2D | Plasma | Up | LC/MS/MS; WB | T2D | Diagnostic | [87] | Vasorin (glycated) | VASN, SLITL2, and UNQ314/PRO357/ PRO1282 | Plasma | Up | LC/MS/MS; WB | T2D | Diagnostic | [87] | Hemopexin precursor (glycated) | MMP15 | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Alpha-1-antitrypsin (glycated) | SERPINA1, AAT, PI, PRO0684, and PRO2209 | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Haptoglobin-related protein (glycated) | HPR | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Serine proteinase inhibitor (glycated) | SERPINA5, PCI, PLANH3, and PROCI | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Complement factor C4B3 (glycated) | C4B, CO4, CPAMD3, and C4B_2 | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Prekallikrein (glycated) | KLKB1, KLK3 | Plasma | Up | 2DE; ESI-Q-TOF/MS/MS | T2D | Diagnostic | [88] | Apolipoprotein (ApoE) | APOE | Plasma | Up | 2DE; MALDI-TOF/MS/MS | T2D | Diagnostic | [89] | Glutathione peroxidase (eGPx) | GPX2 | Plasma | Up | 2DE; MALDI-TOF/MS/MS | T2D | Diagnostic | [89] | Vitamin D-binding protein (DBP) | GC | Plasma | Up | 2DE; MALDI-TOF/MS/MS | T2D | Diagnostic | [89] |
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