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. 2021 Apr 29;12(5):422. doi: 10.1038/s41419-021-03703-x

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 6 — A The mRNA level of CXCL12 was determined by qRT-PCR. GAPDH served as an internal control. B The correlation between CXCL12 and POU1F1 in GC was determined by Pearson correlation analysis. C The correlations between CXCL12 and CD206, CD163, CCR2, or CD204 in GC were determined by Pearson correlation analysis. D Cell migration of macrophages was determined by transwell migration assay. E In vitro angiogenesis was monitored by tube formation assay. F The mRNA levels of CD163 and VEGFA were determined by qRT-PCR. GAPDH served as an internal control. G The protein levels of p-CXCR4, CXCR4, p-Akt, Akt, p-VEGFR2, and VEGFR2 were determined by western blot. GAPDH served as a loading control. Data were representative images or were expressed as the mean ± SD of n = 3 experiments. *P < 0.05, **P < 0.01, ***P < 0.001.