Hofer M, Hoferová Z, Dušek L, Souček K, Gruzdev A
Department of Molecular Cytology and Cytometry, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic.
Physiol Res. 2017 Sep 22;66(4):673-676. doi: 10.33549/physiolres.933568. Epub 2017 Apr 12.
We investigated hematopoiesis in untreated and ionizing radiation-exposed cyclooxygenase-2-deficient (COX-2 KO) mice. We performed a complex hematological analysis of 16 parameters in untreated COX-2 KO male mice or COX-2 KO male mice irradiated with the dose of 4 Gy of gamma-rays and their wildtype littermates. At baseline, hematopoiesis was increased in COX-2-deficient mice, but attenuated by irradation in COX-2-deficient mice compared to wildtype. To conclude, the anti-inflammatory action of the COX-2 genetic disruption plays a positive role in hematopoiesis under basal conditions but is detrimental following radiation exposure.
我们研究了未接受治疗以及暴露于电离辐射的环氧化酶-2缺陷(COX-2基因敲除)小鼠的造血作用。我们对未接受治疗的COX-2基因敲除雄性小鼠、接受4 Gy剂量γ射线照射的COX-2基因敲除雄性小鼠及其野生型同窝小鼠进行了包含16项参数的复杂血液学分析。在基线时,COX-2缺陷小鼠的造血作用增强,但与野生型相比,COX-2缺陷小鼠在接受照射后造血作用减弱。总之,COX-2基因破坏的抗炎作用在基础条件下对造血起积极作用,但在辐射暴露后则有害。