In this paper, a property of Frequency Hopping (FH) sequence set with No Hit Zone (NHZ) is analyzed. Based on matrix transform and mapping methods, respectively, two classes of NHZ FH sequences are presented. These NHZ FH sequences have good Hamming auto-correlation and Hamming cross-correlation properties. FH Code-Division Multiple Access (FH-CDMA) communication systems employing such NHZ FH sequences will eliminate multiple-access interference if the maximum time delay is shorter than the length of the NHZ.
colon cancer has a high mortality rate, thus there is an urgent need to develop novel therapeutic options for clinical management of the disease. Studies have revealed that chaperonin containing TcP1 subunit 6a (ccT6a) promoted the development of multiple types of cancer, and dataset analysis revealed that homeobox B2 (HoXB2) has the potential to modulate the expression of ccT6a. However, whether HoXB2 affects the proliferation, migration and invasion of colon cancer cells remains to be determined. a ccT6a knockdown colon cancer cell line was established and colony formation, wound healing and Transwell invasion assays were performed to assess proliferation, migration and invasion of the altered colon cancer cells. Subsequently, luciferase reporter gene assays and chromatin immunoprecipitation assays were performed to detect the relationship between HoXB2 and ccT6a. a HoXB2 overexpression colon cancer cell line was established and the proliferation, migration and invasion of these cells was determined using the same methods. Knockdown of ccT6a reduced the proliferation, migration and invasion of colon cancer cells. HoXB2 enhanced the expression of ccT6a in colon cancer cells by binding to the promoter of ccT6a. overexpression of HoXB2 abolished the inhibitory effect of ccT6a knockdown on the proliferation, migration and invasion of colon cancer cells. HoXB2 increased the proliferation and invasiveness of colon cancer cells by increasing the expression of ccT6a.
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