三种较低的烯酸盐的癌症证据权重:专家小组的结论和建议
C R Kirman1, P J Boogaard2, J S Bus3
1SciPinion LLC, Bozeman, MT, 59715, USA.
Regulatory toxicology and pharmacology : RTP
|August 13, 2023
概括
专家评估了三种较低的烯酸盐的癌症证据重量. 审查得出的结论是,这些化学物质不太可能对人类致癌,建议非癌症终点进行风险评估.
科学领域:
- 毒理学和致癌的产生.
- 化学品风险评估 化学品风险评估
背景情况:
- 评估了三种较低的烯酸盐 (甲基烯酸盐,乙基烯酸盐,2-乙基烯酸盐) 的致癌潜力.
- 之前的评估可能建议对这些物质进行更高的癌症分类.
研究的目的:
- 系统地评估三种较低烯酸盐致癌性的证据权重 (WOE).
- 根据科学数据,为这些化学品确定适当的癌症分类.
主要方法:
- 采用了经过修改的三轮Delphi格式,涉及一个国际专家小组.
- 系统审查过程旨在最大限度地减少偏见和集体思维.
- 评估机械学数据,动物生物测试和其他相关科学文献.
主要成果:
- 对于动物瘤,最受支持的作用机制 (MOA) 涉及细胞毒性和再生细胞增殖.
- 证据的重量支持"不可能对人类致癌"的分类.
- 在结论方面达成了高度共识 (0.84-0.91) 和信心 (7.7-8.7).
结论:
- 癌症分类与IARC的第3组一致,而不是第2B组.
- 对于这些烯酸盐,从动物数据中获得的定量癌症强度值是不必要的.
- 人类健康风险评估应优先考虑非癌症,接触点的终点,如增生症.
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