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Target intelligence / Profile preview
Lung tissue
- Molecular classification
- Other
01
Overview
Lung tissue refers to the entire structural and cellular composition of the lungs, including alveoli (lined by type I and type II pneumocytes), bronchial epithelium, alveolar macrophages, endothelial cells, and interstitial cells[4][5][6]. Its primary physiological function is gas exchange between air and blood, but it also plays roles in host defense and immune regulation. Lung tissue is a site of multiple disease processes, including infection, cancer, and fibrosis, and harbors a variety of cellular markers and potential therapeutic targets within its constituent cells. However, "lung tissue" itself is an anatomical term rather than a precise molecular target[4][5].
- Other names
- Lung parenchymaPulmonary tissueLung organ
02
Biological functions
Gas exchange (respiration)Host defenseImmune responseSurfactant productionMetabolism (including local metabolism of some drugs)Other
03
Disease associations
Cancer (including lung adenocarcinoma, squamous cell carcinoma, small cell lung cancer)Infection (e.g., pneumonia, tuberculosis)Inflammation (e.g., chronic obstructive pulmonary disease, asthma)Fibrosis (e.g., idiopathic pulmonary fibrosis)Other
04
Safety considerations
Drug delivery and distribution can be challenging due to tissue heterogeneityRisk of toxicity (e.g., pulmonary fibrosis from chemotherapy or radiation)Distinction between targeting tumor versus healthy lung tissue is critical
05
Biomarkers
TTF-1 (thyroid transcription factor 1) and Napsin A (used in diagnosis of lung adenocarcinoma)CK7, CK20 profiles (used in differential diagnosis in oncology)EGFR mutation, ALK translocation (for selection of targeted therapies in non-small cell lung cancer)SPP1, LPL, CHIT1 (associated with lung fibrosis, as investigated in research contexts)
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