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. 2022 Jan 22;23(3):1240. doi: 10.3390/ijms23031240

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Characteristics of lung cancer cell lines according to periostin (POSTN) expression. (A) Comparison of POSTN expression levels detected by Western blot and (B) by confocal microscopy (fluorescence intensity) in different lung cancer cell lines (A549, NCI-H522, NCI-H1703), (p > 0.05). Objective 60×/1.40 Oil; pinhole airy 1.25. Bar = 20 µm. (C) Immunohistochemical expression level of periostin (POSTN) in the tissue of particular non-small cell lung carcinoma (NSCLC) subtypes: squamous cell carcinoma (SCC) and adenocarcinoma (AC) (p > 0.05). IRS, immunoreactive score.