Hoxa gene plays an essential role in the generation and development of the human female reproductive system. This gene is expressed in the Mullerian duct and the adult female reproductive system. Expression of Hoxa10 ...Hoxa gene plays an essential role in the generation and development of the human female reproductive system. This gene is expressed in the Mullerian duct and the adult female reproductive system. Expression of Hoxa10 dramatically increased during the midsecretory phase of the menstrual cycle, corresponding to the time of implantation. Female mice lacking Hoxa10 have a uterine factor defect that results in death of the preimplantation embryo and failure of implantation. These results suggest Hoxa10 may have an important function in implantation. Hoxa10 - deficient males exhibit cryptorchidism that lead to male infertility.展开更多
第10号染色体缺失的磷酸酶和张力蛋白同源基因(PTEN)可通过信号转导通路调控细胞周期,影响细胞的生长发育和程序性死亡,参与调节细胞的迁移和黏附,维护免疫系统的稳定。在口腔鳞状细胞癌(OSCC)的发生发展过程中,可能并不存在PTEN基因的...第10号染色体缺失的磷酸酶和张力蛋白同源基因(PTEN)可通过信号转导通路调控细胞周期,影响细胞的生长发育和程序性死亡,参与调节细胞的迁移和黏附,维护免疫系统的稳定。在口腔鳞状细胞癌(OSCC)的发生发展过程中,可能并不存在PTEN基因的突变和缺失,却可能与PTEN m RNA表达水平降低有一定的关系。PTEN蛋白在健康黏膜和口腔黏膜下纤维性变(OSF)到OSCC的不同组织学类型标本中表达逐渐下降,是OSF的发病机制和恶性转化机制中的重要分子事件。PTEN蛋白与OSCC的组织学和生物学行为有关,可作为其未来的预后指标。在多种肿瘤中,各种调控所导致PTEN蛋白的低表达,影响PTEN蛋白参与的多级信号转导,导致其在协调细胞周期进展,控制程序性细胞死亡及细胞黏附,抑制癌细胞转移和增殖等方面难以发挥预期的作用。展开更多
文摘Hoxa gene plays an essential role in the generation and development of the human female reproductive system. This gene is expressed in the Mullerian duct and the adult female reproductive system. Expression of Hoxa10 dramatically increased during the midsecretory phase of the menstrual cycle, corresponding to the time of implantation. Female mice lacking Hoxa10 have a uterine factor defect that results in death of the preimplantation embryo and failure of implantation. These results suggest Hoxa10 may have an important function in implantation. Hoxa10 - deficient males exhibit cryptorchidism that lead to male infertility.
文摘第10号染色体缺失的磷酸酶和张力蛋白同源基因(PTEN)可通过信号转导通路调控细胞周期,影响细胞的生长发育和程序性死亡,参与调节细胞的迁移和黏附,维护免疫系统的稳定。在口腔鳞状细胞癌(OSCC)的发生发展过程中,可能并不存在PTEN基因的突变和缺失,却可能与PTEN m RNA表达水平降低有一定的关系。PTEN蛋白在健康黏膜和口腔黏膜下纤维性变(OSF)到OSCC的不同组织学类型标本中表达逐渐下降,是OSF的发病机制和恶性转化机制中的重要分子事件。PTEN蛋白与OSCC的组织学和生物学行为有关,可作为其未来的预后指标。在多种肿瘤中,各种调控所导致PTEN蛋白的低表达,影响PTEN蛋白参与的多级信号转导,导致其在协调细胞周期进展,控制程序性细胞死亡及细胞黏附,抑制癌细胞转移和增殖等方面难以发挥预期的作用。
