Therefore , the correlation between MAPK activity and AURKA manifestation, as well as promoter activity, can be proven. provided intragastric operations with the same proportion of physiological saline once a day. The blank group was the regular healthy group and the rats in this group did not undergo any surgical procedure or drug treatment. Brain cells in rats were divided into two parts, one part was fixed, dehydrated, paraffin-embedded and made into slices of Aspn approximately 5 m. TUNEL staining was used to examine the apoptosis of brain tissue, H&E staining was used to observe the brain tissue cells of each group, and traditional western blotting pertaining to detecting the MAPK, Erk and manifestation levels of p38 and RT-polymerase chain reaction method was employed to examine mRNA manifestation levels of MAPK, Erk and p21. After one week, TUNEL staining demonstrated that apoptosis of brain tissue in the drug group was significantly nicer than those in the control and blank organizations. The proteins expression levels of MAPK, Erk and p38 were significantly higher than those of the control group and the normal healthy group; the differences were statistically significant (P <0. 05). Western blotting showed the protein manifestation levels of MAPK, Erk and p38 in the drug group were significantly lower than those of the control group yet higher than those of the normal healthy group; the differences were statistically significant (P <0. 05). TPX2 includes a protective effect on the apoptosis of brain tissue processed by A142, which plays its part through the inhibition of the proteins expression levels of MAPK, Erk and p38. Keywords: Alzheimer's disease, apoptosis, TPX2, MAPK == Launch == Alzheimer's disease (AD) is a neurodegenerative disease, with all the clinical symptoms of cognitive impairment and storage decline. WHO has estimated that by the season 2050, AD patients in Europe and the United States might reach 30 million (1). There are approximately 6 million AD individuals in China, accounting for any third of global AD individuals. The number of individuals each year have been on the increase at a rate of 1, 800, 000 individuals yearly, which makes the problem very grim. After cardiovascular disease, stroke and cancer, AD has become the 4th most frequent disease that threatens the life and well being of the seniors. Currently, it really is believed the main pathogenesis of AD includes oxidative stress, -amyloid cascade reaction, immune inflammation reaction, gene mutation and apoptosis of cerebral cells (2, 3). Xklp2 focus on protein (targeting protein pertaining to xklp2, TPX2) is a new spindle component of a family of vertebrates, and is a type of nuclear proliferation related protein regulated strictly by the cell routine. TPX2 plays an BUN60856 important part in the stability of the spindle during mitosis (4, 5). The detection of TPX2 levels in cancer cells is helpful in order to know the status of cell proliferation and apoptosis. Some studies have demostrated that in the tumor cells, TPX2 overexpression is associated with tumor metastasis and recurrence in various types of malignancy, including pancreatic cancer (6), ovarian malignancy BUN60856 (7), salivary gland carcinoma (8), colorectal cancer (9) and esophageal carcinoma (10). Currently, the role of TPX2 in the neuronal cell apoptosis of AD as well as its significance are certainly BUN60856 not clear. Therefore , the effect and mechanism of TPX2 on nerve cells in AD disease have been relatively limited. The aim of the study was to evaluate the effects and mechanisms of TPX2 within the apoptosis of neural cells in an AD model. == Materials and methods == == == == Experimental materials == Taq Expert Mix (SinoBio, Walpole, MA, USA), agarose sterile saline, sterile double distilled water, rabbitmonoclonal anti-phospho-MAPK (dilution: 1: 1, 000; cat no .: 4370; Cell Signaling Technology, Inc., Danvers, MA, USA) and rabbit monoclonal -actin antibody (dilution: 1: five, 000; BUN60856 feline no .: RB-9421-P; Invitrogen Life Technologies, Carlsbad, CA, USA) and rabbit polyclonal anti-MAPK antibody (dilution: 1: 1, 000; feline no .: 4695; Cell Signaling Technology, Inc., Danvers, MA, USA), 0. 9% sterile saline (Otsuka pharmaceutical Co., Ltd., Tokyo, Japan), TRIzol (Invitrogen Life Technologies) and pathological slice machine (Leica, Mannheim, Germany). == Experimental equipment == Equipment used for the polymerase chain reaction (PCR) included amplification instrument (Bio-Rad, Berkeley, CA, USA), gel imager (Bio-Rad), electrophoresis apparatus (Beijing Liuyi Instrument Factory, Beijing, China), centrifuge (Eppendorf AG, Hamburg, Germany),.