Estrogen receptors participate in carcinogenesis signaling pathways by directly regulating NOD-like receptors

Wentao Fan1, Xiaona Gao1, Chenchen Ding1

  • 1College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.

Insights

Estrogen receptors (ERs) regulate NOD-like receptors (NLRs) in cancer. Targeting ERs may treat NLR-related inflammation and colon cancer by inhibiting NLRP3 inflammasome activity.

Area of Science:

  • Immunology
  • Molecular Biology
  • Oncology

Background:

  • NOD-like receptors (NLRs) are crucial for innate immunity and inflammation.
  • The precise regulatory mechanisms of NLRs and their role in cancer remain incompletely understood.
  • Estrogen receptors (ERs) have previously shown connections with NLRs in inflammatory responses.

Purpose of the Study:

  • To elucidate the regulatory role of Estrogen Receptors (ERs) in NOD-like Receptors (NLRs) signaling.
  • To investigate the involvement of ERs and NLRs, specifically NLRP3, in colon cancer development.
  • To explore the therapeutic potential of targeting ERs in NLR-associated inflammation and cancer.

Main Methods:

  • Investigated ERs as transcription factors for NLRs.
  • Analyzed NLRP3 expression in normal and colon cancer cells.
  • Utilized selective ERα antagonists to assess effects on pro-inflammatory cytokines, proliferation, and apoptosis.

Main Results:

  • ERs were identified as direct regulators of NLRs transcription and inflammasome co-localization.
  • NLRP3 showed differential expression in colon normal versus cancer cells.
  • ERα antagonism reduced pro-inflammatory cytokines, suppressed proliferation, and promoted apoptosis via NLRP3 inhibition.

Conclusions:

  • Estrogen receptors directly regulate NLRs, influencing the NLR-associated signaling pathway in cancer.
  • NLRP3 inflammasome activity is implicated in colon cancer progression.
  • ERs represent a promising therapeutic target for NLR-related inflammation and colon cancer.

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