Macrophages Protect Endometriotic Cells Against Oxidative Damage Through a Cross-Talk Mechanism

Kenji Ogawa, Tingting Liu, Naoki Kawahara, Hiroshi Kobayashi
Reproductive sciences (Thousand Oaks, Calif.) · 2022 · vol. 29(8) , pp. 2165–2178 · doi:10.1007/s43032-022-00890-6 · PMID:35199318 · W4213415670
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⚙ AI-generated summary by claude@2026-06+body, 2026-06-07 ⓘ

Macrophages protect endometriotic cells from oxidative damage via a cross-talk mechanism involving TGF-β1 and HO-1, suggesting a role in endometriosis pathogenesis.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-07 ⓘ

The study investigated whether macrophages protect endometrial cells from oxidative injury and what mechanism mediates this protection. Differentiated THP-1 macrophage-like cells were co-cultured with cultured endometrial cells (dTHP-1), then exposed to hydrogen peroxide or methemoglobin-containing fluid; gene expression profiling (microarray, DEG screening/verification) and functional assays with inhibitors were used. Co-culture altered endometrial cell gene expression, with TGF-β1 identified as a key candidate, and TGF-β1 was shown to induce macrophage heme oxygenase-1 (HO-1); oxidative stress increased HO-1 further during co-culture, and this macrophage protection of endometrial cells required HO-1 because HO-1 inhibition abolished it. Relevance to endometriosis: the paper concludes that macrophage–endometrial cell cross-talk via TGF-β1/HO-1 may contribute to endometriosis progression and pathogenesis, and it directly centers on endometriotic cell protection from oxidative damage.

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Condition tags

mesh:D004715

MeSH descriptors

Endometriosis Endometriosis Transforming Growth Factor beta1 Transforming Growth Factor beta1 Female Heme Oxygenase-1 Heme Oxygenase-1 Humans Hydrogen Peroxide Hydrogen Peroxide Macrophages Macrophages Methemoglobin Methemoglobin Methemoglobin Oxidative Stress

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