Table 4 The blood or urinary molecules as non-invasive biomarkers of kidney fibrosis

From: Kidney fibrosis: from mechanisms to therapeutic medicines

Biomarker

Relationship in kidney fibrosis

Ref.

Angiostatin

The levels of urinary angiostatin/creatinine in patients are associated with tubular atrophy/interstitial fibrosis

345

C3M

C3M in urine inversely correlates with tubular atrophy/interstitial fibrosis

346

C5a, C5b-9

The plasma C5a level is correlated with the proportion of segmental sclerotic glomeruli. The plasma and urinary levels of C5b-9 are correlated with interstitial fibrosis

347

CCL5, CXCL1

Urinary sediment CCL5 and CXCL1 mRNAs are associated with interstitial fibrosis degree

348

CD11c+ macrophages

The numbers and proportions of urinary CD11c+ macrophages are associated with the values of chronicity indices such as tubular atrophy/interstitial fibrosis

349

CDH11, SMOC2, PEDF

Higher levels of plasma CDH11, SMOC2, and PEDF and urinary CDH11 and PEDF are significantly associated with increasing severity of interstitial fibrosis and tubular atrophy

350

CXCL16, Endostatin

Urinary CXCL16 and endostatin are correlated with tubular atrophy/interstitial fibrosis score

351

DcR2

Urinary DcR2 level is correlated with scores of tubulointerstitial injury

352,353

DKK3

Urinary DKK3 is related to the extent of tubulointerstitial fibrosis. DKK3 in serum is associated with higher chronicity index at biopsy and flares rate

354,355,356

EGF

Urinary EGF shows significant correlation with intrarenal EGF mRNA, and tubular atrophy/interstitial fibrosis

357

L-FABP

Urinary L-FABP is positively associated with interstitial fibrosis

358

Fibrinogen

Urinary fibrinogen correlates with tubular atrophy/interstitial fibrosis

359

Fractalkine

Plasma fractalkine is associated with mesangial hypercellularity pathological damage, CD68+ macrophage, and CD20+ B cell infiltration in renal tissue and renal outcome in IgAN patients

360

Gal-3

Higher plasma Gal-3 levels are associated with interstitial fibrosis, tubular atrophy, and vascular intimal fibrosis

361

KIM-1

Urinary KIM-1 is associated with inflammation, renal function, and also reflects KIM-1 in tissue. Plasma KIM-1 is also associated with tubular atrophy/interstitial fibrosis

362,363

LOX

Serum LOX levels correlates with the area of kidney fibrosis

364

MMP-7

Urinary MMP-7 correlates with renal fibrosis scores in CKD patients

365

miR-196a

Urinary miR-196a is associated with glomerular sclerosis and tubular atrophy/interstitial fibrosis

366,367

MCP-1

Urinary MCP-1 correlates with chronic damage, especially fibrous crescents, and tubular atrophy/interstitial fibrosis

368

mtDNA

Urinary mtDNA has positive correlations with interstitial fibrosis

369,370

PTC-EMPs

Urinary PTC-EMPs levels correlates directly with interstitial fibrosis, and inversely with the number of peritubular capillary

371

Soluble klotho

High serum klotho is associated with decreased odds ratios of interstitial fibrosis and segmental sclerosis. Patients with a lower urinary klotho-to-creatinine ratio are more likely to have diffuse foot process effacement

372,373

suPAR

Serum suPAR is correlated with tubular atrophy/interstitial fibrosis score and interstitial inflammation score

374

TNC

There is a robust correlation between urinary TNC and kidney fibrotic score

121

VCAM-1

Urinary VCAM-1 is associated with fibrous crescents

375,376

VSIG2

Plasma VSIG2 is positively associated with interstitial fibrosis/tubular atrophy

362

  1. CCL5 C-C motif chemokine ligand 5, CDH11 Cadherin-11, CKD chronic kidney disease, CXCL C-X-C motif chemokine ligand, DcR2 decoy receptor 2, DKK3 Dickkopf-3, EGF epidermal growth factor, Gal-3 Galectin-3, IgAN IgA nephropathy, KIM-1 kidney injury molecule 1, L-FABP liver fatty acid binding protein, LOX lysyl oxidase, MCP-1 monocyte chemoattractant protein-1, MMP-7 matrix metalloproteinase 7, mtDNA mitochondrial DNA, PEDF pigment epithelium-derived factor, PTC-EMP peritubular capillary-endothelial microparticles, SMOC2 Sparc-related modular calcium binding protein-2, SUPER soluble urokinase plasminogen activator receptor, TNC Tenascin-C, VCAM-1 vascular cell adhesion molecule 1, VSIG2 V-set and immunoglobulin domain containing 2