Table 1 Markers Selected for the Development of a Diagnostic Panel for Lung Cancer.

From: Highly Sensitive Marker Panel for Guidance in Lung Cancer Rapid Diagnostic Units

Marker

Function in Cancer

Usefulness in LC diagnosis

Epidermal Growth Factor (EGF)

Binding of EGF to receptor promotes tumour growth and progression42

Suitable discrimination of LC/NSCLC from healthy and benign lung pathologies19,20

sCD26

Immune regulation and co-stimulatory activities43 Tumour suppressor protein in NSCLC44

Suitable diagnostic potential for LC vs healthy21, healthy/ benign19 or NSCLC-MPE/NSCLC-PMPE22

Calprotectin (CAL)

Antimicrobial and pro-inflammatory functions, tumour development45 Mediate lung metastases46

Promising marker in LC derived by pleural effusion23 and LC19

Matrix Metalloproteinases (MMP-1, −7, −9)

Extracellular matrix degradation leading to cancer invasion and metastasis, processing of growth factors, regulation of apoptosis and angiogenesis, tumour-associated inflammation and immune escape47

MMP-1: Poor diagnostic capacity for LC vs healthy controls in plasma48

MMP-7: Moderate diagnostic potential for NSCLC vs healthy and benign lung disease49

MMP-9: Good diagnostic potential for LC vs control and benign lung affections50,51

Carcinoembryonic Antigen (CEA)

Belongs to immunoglobulin superfamily, acting in cell adhesion and innate immunity52

Moderate diagnostic potential for LC vs non-malignant pathologies4,24,25

CYFRA 21.1

Fragment of Cytokeratin 19, constituent of cytoskeleton and expressed in epithelial differentiation53

Moderate diagnostic potential for LC vs non-malignant pathologies4,24,25

  1. Abbreviations: LC = Lung Cancer, NSCLC = Non Small Cell Lung Cancer, MPE = Malignant Pleural Effusion, PMPE = paramalignant pleural effusion.