Englander Institute for Precision Medicine

TIMP1 is an early biomarker for detection and prognosis of lung cancer.

TitleTIMP1 is an early biomarker for detection and prognosis of lung cancer.
Publication TypeJournal Article
Year of Publication2023
AuthorsDantas E, Murthy A, Ahmed T, Ahmed M, Ramsamooj S, Hurd MA, Lam T, Malbari M, Agrusa C, Elemento O, Zhang C, Pappin DJ, McGraw TE, Stiles BM, Altorki NK, Goncalves MD
JournalClin Transl Med
Date Published2023 Oct
KeywordsAnimals, Biomarkers, Humans, Lung Neoplasms, Mice, Neoplasm Proteins, Prognosis, Proteomics, Tissue Inhibitor of Metalloproteinase-1

BACKGROUND: Lung cancer remains the major cause of cancer-related deaths worldwide. Early stages of lung cancer are characterized by long asymptomatic periods that are ineffectively identified with the current screening programs. This deficiency represents a lost opportunity to improve the overall survival of patients. Serum biomarkers are among the most effective strategies for cancer screening and follow up.

METHODS: Using bead-based multiplexing assays we screened plasma and tumours of the KrasG12D/+; Lkb1f/f (KL) mouse model of lung cancer for cytokines that could be used as biomarkers. We identified tissue inhibitor of metalloproteinase 1 (TIMP1) as an early biomarker and validated this finding in the plasma of lung cancer patients. We used immunohistochemistry (IHC), previously published single-cell RNA-seq and bulk RNA-seq data to assess the source and expression of TIMP1in the tumour. The prognostic value of TIMP1 was assessed using publicly available human proteomic and transcriptomic databases.

RESULTS: We found that TIMP1 is a tumour-secreted protein with high sensitivity and specificity for aggressive cancer, even at early stages in mice. We showed that TIMP1 levels in the tumour and serum correlate with tumour burden and worse survival in mice. We validated this finding using clinical samples from our institution and publicly available human proteomic and transcriptomic databases. These data support the finding that high tumour expression of TIMP1 correlates with an unfavorable prognosis in lung cancer patients.

CONCLUSION: TIMP1 is a suitable biomarker for lung cancer detection.

Alternate JournalClin Transl Med
PubMed ID37759102
PubMed Central IDPMC10533479
Grant ListK08 CA230318 / CA / NCI NIH HHS / United States
K08 CA230318 / NH / NIH HHS / United States

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