ABSTRACT
A20 (also known as TNFAIP3 ) is a zinc finger which can be activated by a variety of inflammatory factors such protein with both ubiquitination and deubiquitination functions, as LPS, IL-1 and TNF-α. To date, A20 has been considered a negative regulator of NF-kB with immunomodulatory effects. And the latest researches have shown the involvement of A20 in the occurrence and development of various allergic diseases. This article reviews the origin, structure, and biological functions of A20 and its role in allergic asthma, through which new methods and ideas might be enlightened for the treatment and prevention of allergic asthma.
ABSTRACT
Objective To investigate the correlation between tumor-associated macrophages(TAMs)and the occurrence and progression of Kazakh esophageal squamous cell carcinoma.Methods We collected 200 cases of esophageal squamous cell carcinoma(ESCC),cancer adjacent normal(CAN)tissues and clinical pathological data of the specimens.CD68 was used as the TAM marker,and immunohistochemistry(IHC)counts were used to detect the distribution of TAMs and quantify the density of TAMs in tumor nest/epithelial and surrounding stroma.At the same time,by combining with clinical pathological data and the patients' prognosis,we analyzed whether the high density of TAMs distribution was associated with the occurrence and development of Kazakh ESCC and the patients' poor prognosis.Results ① The density of TAMs in the tumor nests and stroma was significantly higher than that in CAN tissues(P＜0.05).② The density of TAMs in tumor nest had a significant positive correlation with lymph node metastasis and clinical pathological stage(advanced)in Kazakh ESCC(P＜ 0.05),and this correlation was more evident between the density of TAMs in tumor stroma and lymph node metastasis and clinical pathological stage (advanced)(P＜0.001).③ The survival analysis found that the high density of CD 68-positive TAMs in cancer nest showed a positive correlation with poor prognosis of ESCC(P＜0.05).Conclusion High density of TAMs can promote the occurrence and development of Kazakh ESCC in Xinjiang and can be used as a poor prognostic factor for ESCC in Kazakh population.