In order to investigate the inhibitory eff ects of oyster enzymatic hydrolysate (OEH) on the metastasis of Lewis lung cancer and to evaluate its mechanism, daily gavage of low(LOEH), medium(MOEH) and high (HOEH) doses of OEH for 5 weeks was administered based on the subcutaneous Lewis lung cancer model in C57BL/6J male mice, the volume and weight of subcutaneous tumor were measured, the lung metastatic nodules were counted, the number of tumor-associated-macrophages (TAMs; CD11b+F4/80+), the expression of E-cadherin, Vimentin, microRNA-21 and microRNA-218 in subcutaneous tumor were measured. It was found that OEH treatment significantly decreased the subcutaneous tumor weight for the MOEH and HOEH groups (P=0.013, P=0.007) and significantly inhibited lung metastasis in a dose-dependent manner (χ2=13.16, P=0.004). The expression of E-cadherin showed a statistical increase at high dose, while the expression of Vimentin and the number of TAMs in subcutaneous tumor was significantly decreased at all OEH doses (P
İstiridye enzimatik hidrolizatının (OEH) Lewis akciğer kanserinin metastazı üzerine inhibitör etkisinin araştırılması ve inhibitör mekanizmanın aydınlatılması amacıyla subkutan Lewis akciğer kanseri modeline göre C57BL / 6J erkek farelerde 5 hafta boyunca OEH’in düşük (LOEH), orta (MOEH) ve yüksek (HOEH) dozlarının günlük gavajı uygulandı. Subkutan tümörün hacmi ve ağırlığı ölçüldü, akciğer metastatik nodüller sayıldı, tümör ilişkili makrofajlar (TAM; CD11b+F4/80+) sayıldı, deri altı tümör yapılarda E-kaderin, Vimentin, microRNA-21 ve microRNA-218 ekspresyonu ölçüldü. OEH’in MOEH ve HOEH sağaltım gruplarının subkutan tümör ağırlığını önemli ölçüde azalttığı (P=0.013, P=0.007) ve doza bağlı olarak akciğer metastazını önemli ölçüde engellediği (χ2=13.16, P=0.004) saptandı. E-kaderin ekspresyonu, yüksek dozda istatistiksel bir artış gösterirken, tüm OEH gruplarında Vimentin ekspresyonu ve subkutan tümördeki TAM hücre sayısında önemli ölçüde azalma saptandı (P
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