Nitric oxide and cancer therapy: the emperor has NO clothes.

Nitric oxide and cancer therapy: the emperor has NO clothes.
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DOI:
10.2174/138161210790232149
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发表时间:
2010
影响因子:
3.1
通讯作者:
Thomas DD
Thomas DD
中科院分区:
医学4区
文献类型:
--
作者:
Hickok JR;Thomas DD

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一氧化氮(NO·)作为癌症表型介体的作用促使研究人员研究操纵该分子的体内产生和外源性递送以获得治疗效果的策略。不幸的是,NO·在癌症生理学中具有多种功能。在某些情况下,NO·或一氧化氮合酶(NOS)水平与肿瘤抑制相关,在其他情况下,它们与肿瘤进展和转移相关。理解这种二分法对NO·和癌症治疗领域的研究人员来说是一个巨大的挑战。由于NO·独特的化学和生物化学性质,其与细胞靶点的相互作用以及随后的下游信号传导事件可以基于肿瘤异质性和微环境而大不相同。对大量NO相关行为的简单解释将继续产生关于NO与癌症相关性的相互矛盾的信息。对NO的化学性质和所使用的方法给予相当大的关注将消除该领域的许多差异,并允许深入了解基于NO的化疗药物何时会产生有益的结果。
The role of nitric oxide (NO·) as a mediator of cancer phenotype has led researchers to investigate strategies for manipulating in vivo production and exogenous delivery of this molecule for therapeutic gain. Unfortunately, NO· serves multiple functions in cancer physiology. In some instances, NO· or nitric oxide synthase (NOS) levels correlate with tumor suppression and in other cases they are related to tumor progression and metastasis. Understanding this dichotomy has been a great challenge for researchers working in the field of NO· and cancer therapy. Due to the unique chemical and biochemical properties of NO·, it’s interactions with cellular targets and the subsequent downstream signaling events can be vastly different based upon tumor heterogeneity and microenvironment. Simple explanations for the vast range of NO-correlated behaviors will continue to produce conflicting information about the relevance of NO· and cancer. Paying considerable attention to the chemical properties of NO· and the methodologies being used will remove many of the discrepancies in the field and allow for in depth understanding of when NO-based chemotherapeutics will have beneficial outcomes.
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