2D	Two-Dimensional
2D-PAGE	Two-Dimensional Polyacrylamide Gel Electrophoresis
16S rRNA	16S Ribosomal Ribonucleic Acid
AAV DTR	Adeno-Associated Virus Diphtheria Toxin Receptor
AI	Artificial Intelligence
ASPN	Asporin
ATS	American Thoracic Society
BALF	Bronchoalveolar Lavage Fluid
BALF-EVs	Extracellular Vesicles Isolated from Bronchoalveolar Lavage Fluid
BTNL9	Butyrophilin Like 9
CCL	CC-Chemokine Ligand
CCL17, 22, 25, 28	Chemokine (C-C motif) Ligands
CCL18	Chemokine (C-C motif) Ligand 18
CCD19Lu	Normal Human Lung Fibroblast Cell Line
CD44	Cluster of Differentiation 44
ChIP-Seq	Chromatin Immunoprecipitation Sequencing
CLIA	Clinical Laboratory Improvement Amendments
COL1A1	Collagen Type I Alpha 1 Chain
COPD	Chronic Obstructive Pulmonary Disease
CRP	C-Reactive Protein
CyTOF	Cytometry by Time of Flight
CCT6A	Chaperonin Containing TCP1 Subunit 6A
DIA	Data-Independent Acquisition
DIGE	Differential Gel Electrophoresis
DLCO	Diffusion Lung Carbon Monoxide
ECM	Extracellular Matrix
ELISA	Enzyme-Linked Immunosorbent Assay
ERS	European Respiratory Society
ESI	Electrospray Ionization
FDA	Food and Drug Administration
FF	Fibroblastic Foci
FFPE	Formalin-Fixed Paraffin-Embedded (Tissue)
FGF	Fibroblast Growth Factor
FVC	Forced Vital Capacity
GC-MS	Gas Chromatography–Mass Spectrometry
GREM1	Gremlin 1
HDMSE	High-Definition Mass Spectrometry with Data-Dependent Acquisition
HP	Haptoglobin
HPX	Hemopexin
HRCT	High-Resolution Computed Tomography
HRMS	High-Resolution Mass Spectrometry
HSP90AA1	Heat Shock Protein 90 Alpha Family Class A Member 1
HSP90AB1	Heat Shock Protein 90 Alpha Family Class B Member 1
IIP	Idiopathic Interstitial Pneumonia
IGFBP5	Insulin-Like Growth Factor Binding Protein 5
IL	Interleukin
ILD	Interstitial Lung Disease
IPF	Idiopathic Pulmonary Fibrosis
iTRAQ	Isobaric Tags for Relative and Absolute Quantitation
KL-6	Krebs von den Lungen-6
LASSO	Least Absolute Shrinkage and Selection Operator
LC-MS	Liquid Chromatography–Mass Spectrometry
LC-MS/MS	Liquid Chromatography–Tandem Mass Spectrometry
LCP1	Lymphocyte Cytosolic Protein 1
LDHA	Lactate Dehydrogenase A
LGALS7	Galectin-7
LL29, LL97A	IPF-derived Human Lung Fibroblast Cell Lines
LFQ	Label-Free Quantification
LTBP1	Latent Transforming Growth Factor Beta Binding Protein 1
LUM	Lumican
MALDI	Matrix-Assisted Laser Desorption/Ionization
MALDI-TOF MS	Matrix-Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry
MALDI-ToF/ToF	Matrix-Assisted Laser Desorption/Ionization Time-of-Flight/Time-of-Flight Mass Spectrometry
MIF	Macrophage Migration Inhibitory Factor
MIMECAN (OGN)	Mimecan
MMP	Matrix Metalloproteinase
MMPs	Matrix Metalloproteinases
MS	Mass Spectrometry
MS/MS	Tandem Mass Spectrometry
MUC5B	Mucin 5B
NF-kB	Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B Cells
NMR	Nuclear Magnetic Resonance
OGN	Mimecan
OPN	Osteopontin
PC37	37-Protein Classifier
PCR	Polymerase Chain Reaction
PDE4B	Phosphodiesterase 4B
PLOD2	Procollagen-Lysine, 2-Oxoglutarate 5-Dioxygenase 2
POSTN	Periostin
PPARγ	Peroxisome Proliferator-Activated Receptor Gamma
PRDX2	Peroxiredoxin-2
ProCanFDL	Proteomics Cancer Federated Deep Learning
PTMs	Post-Translational Modifications
RNA-Seq	RNA Sequencing
RCT	Randomized Controlled Trial
SAA1	Serum Amyloid A1
SCGB1A1	Secretoglobin Family 1A Member 1
SCoPE	Single-Cell Proteomics by Mass Spectrometry
SERPINB3	Serpin Family B Member 3
SFRP1	Secreted Frizzled-Related Protein 1
SNP	Single Nucleotide Polymorphism
SOMAmer	Slow-Off Rate-Modified Aptamer
SP-A	Surfactant Protein A
SP-D	Surfactant Protein D
SPARC	Secreted Protein Acidic and Rich in Cysteine
STRING	Search Tool for the Retrieval of Interacting Genes/Proteins
SSc	Systemic Sclerosis
SVM	Support Vector Machine
TAGLN2	Transgelin 2
TERC	Telomerase RNA Component
TERT	Telomerase Reverse Transcriptase
TGF-β	Transforming Growth Factor Beta
Th2	T Helper Type 2
TMT	Tandem Mass Tag
TNF-α	Tumor Necrosis Factor Alpha
UIP	Usual Interstitial Pneumonia
VEGF	Vascular Endothelial Growth Factor
VOCs	Volatile Organic Compounds