TIMP2, MMP2 and CD63 as shared molecular mediators of embryo implantation, endometriosis and cancer metastasis: a transcriptomic hypothesis

Kateryna Maliarchuk
2026 · doi:10.5281/zenodo.20497110 · W7163037084
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⚙ AI-generated summary by claude@2026-06, 2026-06-06 ⓘ

This comparative transcriptomic analysis of endometriosis, implantation failure, and colorectal cancer suggests TIMP2, MMP2, and CD63 are shared molecular mediators of adhesive invasion, with TIMP2 notably altered across all three conditions.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-06 · read from full text ⓘ

This paper proposes a transcriptomic hypothesis that embryo implantation, endometriosis, and cancer metastasis share a common molecular mechanism of adhesive invasion. Using comparative bioinformatic analysis of three GEO transcriptomic datasets (endometriosis vs normal endometrium; recurrent implantation failure vs normal fertility; and colorectal cancer stages), the authors report a consistent expression pattern where TIMP2, MMP2, and CD63 are upregulated in endometriosis and metastatic cancer and downregulated in recurrent implantation failure. TIMP2 is highlighted as the only gene significantly altered in both pathological contexts. The paper does not present functional validation, and the conclusions are based on cross-dataset transcriptomic comparisons. This paper is centrally about endometriosis — it directly analyzes gene expression differences in endometriosis and proposes TIMP2, MMP2, and CD63 as shared mediators linking endometriosis with implantation failure and cancer metastasis.

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Abstract

Malignant tumors do not create fundamentally new cellular mechanisms - to achieve invasive growth and metastasis, they exploit programs already encoded in the genome. We propose the hypothesis that embryo implantation, endometriosis, and cancer metastasis share a common molecular mechanism of adhesive invasion. To test this hypothesis, we performed a comparative bioinformatic analysis of three independent transcriptomic datasets from the NCBI GEO database: GSE7305 (endometriosis vs normal endometrium, n=20), GSE111974 (recurrent implantation failure vs normal fertility, n=48), and GSE17536 (colorectal cancer stage 3-4 vs stage 1-2, n=177). The analysis revealed a consistent gene expression pattern: TIMP2, MMP2, and CD63 are upregulated in endometriosis and metastatic cancer, and downregulated in recurrent implantation failure. TIMP2 is the only gene significantly altered in both pathological contexts (p<0.0001 and p=0.015). These findings support the concept that pathological reactivation of the physiological implantation program underlies both endometriosis and cancer metastasis, and identify TIMP2 as a priority candidate for functional investigation and therapeutic targeting.
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TIMP2, MMP2 and CD63 as shared molecular mediators of embryo implantation, endometriosis and cancer metastasis: a transcriptomic hypothesis Authors/Creators Description Malignant tumors do not create fundamentally new cellular mechanisms - to achieve invasive growth and metastasis, they exploit programs already encoded in the genome. We propose the hypothesis that embryo implantation, endometriosis, and cancer metastasis share a common molecular mechanism of adhesive invasion. To test this hypothesis, we performed a comparative bioinformatic analysis of three independent transcriptomic datasets from the NCBI GEO database: GSE7305 (endometriosis vs normal endometrium, n=20), GSE111974 (recurrent implantation failure vs normal fertility, n=48), and GSE17536 (colorectal cancer stage 3-4 vs stage 1-2, n=177). The analysis revealed a consistent gene expression pattern: TIMP2, MMP2, and CD63 are upregulated in endometriosis and metastatic cancer, and downregulated in recurrent implantation failure. TIMP2 is the only gene significantly altered in both pathological contexts (p<0.0001 and p=0.015). These findings support the concept that pathological reactivation of the physiological implantation program underlies both endometriosis and cancer metastasis, and identify TIMP2 as a priority candidate for functional investigation and therapeutic targeting. Files Files (14.7 kB) | Name | Size | Download all | |---|---|---| | md5:618d02ba7bf7a536638f5094bf4b5444 | 14.7 kB | Download |

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