Bluestone Center for Clinical Research and Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, 10010, USA.
Adv Biol (Weinh). 2022 Sep;6(9):e2200073. doi: 10.1002/adbi.202200073. Epub 2022 Jul 8.
Oral cancer pain is attributed to the release from cancers of mediators that sensitize and activate sensory neurons. Intraplantar injection of conditioned media (CM) from human tongue cancer cell line HSC-3 or OSC-20 evokes nociceptive behavior. By contrast, CM from noncancer cell lines, DOK, and HaCaT are non-nociceptive. Pain mediators are carried by extracellular vesicles (EVs) released from cancer cells. Depletion of EVs from cancer cell line CM reverses mechanical allodynia and thermal hyperalgesia. CM from non-nociceptive cell lines become nociceptive when reconstituted with HSC-3 EVs. Two miRNAs (hsa-miR-21-5p and hsa-miR-221-3p) are identified that are present in increased abundance in EVs from HSC-3 and OSC-20 CM compared to HaCaT CM. The miRNA target genes suggest potential involvement in oral cancer pain of the toll like receptor 7 (TLR7) and 8 (TLR8) pathways, as well as signaling through interleukin 6 cytokine family signal transducer receptor (gp130, encoded by IL6ST) and colony stimulating factor receptor (G-CSFR, encoded by CSF3R), Janus kinase and signal transducer and activator of transcription 3 (JAK/STAT3). These studies confirm the recent discovery of the role of cancer EVs in pain and add to the repertoire of algesic and analgesic cancer pain mediators and pathways that contribute to oral cancer pain.
口腔癌痛归因于癌症释放的敏化和激活感觉神经元的介质。人舌癌细胞系 HSC-3 或 OSC-20 的条件培养基 (CM) 皮内注射会引起伤害性行为。相比之下,非癌细胞系 DOK 和 HaCaT 的 CM 是非伤害性的。疼痛介质由癌细胞释放的细胞外囊泡 (EVs) 携带。从癌细胞系 CM 中耗尽 EVs 可逆转机械性痛觉过敏和热痛觉过敏。当用 HSC-3 EV 重建非伤害性细胞系的 CM 时,其变得具有伤害性。鉴定出两种 miRNA(hsa-miR-21-5p 和 hsa-miR-221-3p),它们在 HSC-3 和 OSC-20 CM 的 EV 中丰度增加,而在 HaCaT CM 中丰度增加。miRNA 靶基因表明其可能参与口腔癌痛的 Toll 样受体 7 (TLR7) 和 8 (TLR8) 途径,以及白细胞介素 6 细胞因子家族信号转导受体 (gp130,由 IL6ST 编码) 和集落刺激因子受体 (G-CSFR,由 CSF3R 编码)、Janus 激酶和信号转导和转录激活因子 3 (JAK/STAT3) 的信号转导。这些研究证实了最近发现的癌症 EV 在疼痛中的作用,并增加了致痛和镇痛性癌症疼痛介质和途径的组合,这些介质和途径有助于口腔癌痛。
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