Aurora kinase A (AURKA),a family member of aurora kinases,is involved in mitotic entry,maturation and separation of centrosome,assembly and stabilization of bipolar spindle,and condensation and separation of chromosome.Studies have demonstrated that AURKA plays a similar role in meiosis,while the specific mechanism and the similarities and differences in its role between meiosis and mitosis remain unclear.Therefore,we reviewed the studies about the localization and activation of AURKA in oocyte meiosis,and compared the role of AURKA in regulating spindle formation,activating spindle assembly checkpoint,and correcting the kinetochore-microtubule attachment between the meiosis of oocytes and the mitosis of somatic cells.This review will lay a theoretical foundation for revealing the mechanism of AURKA in the regulation of cell division and for the clinical research related to cancer and reproduction.
Aurora Kinase A/genetics* ; Cell Cycle Proteins/genetics* ; Chromosome Segregation ; Humans ; Meiosis ; Oocytes

BACKGROUND: Aurora kinases (AURKs) family plays a vital role not only in cell division but also in tumorigenesis. However, there are still rare systematic analyses of the diverse expression patterns and prognostic value of the AURKs family in breast cancer (BC). Systematic bioinformatics analysis was conducted to explore the biological role, prognostic value, and immunologic function of AURKs family in BC. METHODS: The expression, prognostic value, and clinical functions of AURKs family in BC were evaluated with several bioinformatics web portals: ONCOMINE Gene Expression Profiling Interactive Analysis, Kaplan-Meier plotter, cBioPortal, Metascape, GeneMANIA, and LinkedOmics; and the result was verified using human tissues. RESULTS: The expression of AURKA and AURKB were upregulated in BC in subgroup analyses based on tumor stage (all P   <  0.05). BC patients with high AURKA and AURKB expression had a worse overall survival, relapse-free survival, and distant metastasis-free survival (all P   <  0.05). Verification experiment revealed that AURKA and AURKB were upregulated in BC ( P  < 0.05). AURKA and AURKB were specifically associated with several tumor-associated kinases (polo-like kinase 1 and cyclin-dependent kinase 1), miRNAs (miR-507 and miR-381), and E2F transcription factor 1. Moreover, AURKA and AURKB were correlated with immune cell infiltration. Functional enrichment analysis revealed that AURKA and AURKB were involved in the cell cycle signaling pathway, platinum drug resistance signaling pathway, ErbB signaling pathway, Hippo signaling pathway, and nucleotide-binding and oligomerization domain-like receptor signaling pathway. CONCLUSIONS Aurora kinases AURKA and AURKB could be employed as novel prognostic biomarkers or promising therapeutic targets for BC.
Humans ; Female ; Aurora Kinase A/metabolism* ; Aurora Kinase B/metabolism* ; Prognosis ; Breast Neoplasms/genetics* ; Neoplasm Recurrence, Local ; MicroRNAs

Approximately 2,300 genes are found to be associated with spermiogenesis and their expressions play important roles in the regulation of spermiogenesis. In recent years, more and more attention has been focused on the studies of the genes associated with oligospermia, asthenospermia and teratospermia and their molecular mechanisms. Some genes, such as GSTM1, DNMT3L, and CYP1A1, have been shown to be potentially associated with oligospermia; some, such as CATSPER1, CRISP2, SEPT4, TCTE3, TEKT4, and DNAH1, with asthenospermia; and still others, such as DPY19L2 and AURKC, with teratospermia. These findings have provided a molecular basis for the studies of the pathogenesis of oligospermia, asthenospermia and teratospermia, as well as a new approach to the exploration of new diagnostic and therapeutic techniques.
Asthenozoospermia ; genetics ; Aurora Kinase C ; genetics ; Calcium Channels ; genetics ; Cytochrome P-450 CYP1A1 ; genetics ; Cytoplasmic Dyneins ; DNA (Cytosine-5-)-Methyltransferases ; genetics ; Dyneins ; genetics ; Glutathione Transferase ; genetics ; Glycoproteins ; genetics ; Humans ; Male ; Membrane Proteins ; genetics ; Microtubule Proteins ; genetics ; Oligospermia ; genetics ; Spermatogenesis ; genetics ; Teratozoospermia ; genetics

Objective: To investigate the association of a very common mutation of c.144delC in the aurora kinase C (AURKC) gene with idiopathic teratozoospermia in Chinese infertile men in Sichuan. METHODS: Using polymerase chain reaction (PCR) and next-generation sequencing, we analyzed the correlation between c.144delC polymorphism of the AURKC gene and male infertility in 98 idiopathic teratozoospermia patients in comparison with 162 normal fertile men. RESULTS: Neither c.144delC mutation nor other meaningful mutations were detected in the AURKC gene in the 98 idiopathic teratozoospermia patients or the 162 normal controls. CONCLUSIONS Teratozoospermia is not correlated with c.144delC mutation in the AURKC gene in the men of the Sichuan area. Therefore, large-scale genotyping of the AURKC gene may not be necessary clinically among Chinese patients with idiopathic teratozoospermia.
Aurora Kinase C ; genetics ; Humans ; Male ; Mutation ; genetics ; Polymorphism, Genetic ; Spermatozoa ; Teratozoospermia ; genetics

Aurora-B as an important kinase to adjust the cell normal mitosis is a potent target for cancer treatment. Aurora-B is overexpressed in a broad range of tumor and tumor cells are more sensitive while Aurora-B is inhibited. Due to the key role of the Aurora-B in cell mitosis, the development of its inhibitors is becoming more and more important. Several small molecules inhibit with a similar efficacy both Aurora-A and Aurora-B, however, in most cases the effects resemble Aurora-B disruption by genetic methods, indicating that Aurora-B represents an effective therapeutic target. There were several Aurora-B kinase inhibitors which had entered the clinics and displayed good antitumor activity. In this review, we will outline the functions of Aurora kinase B in normal cell division and in malignancy. We will focus on recent preclinical and clinical studies that have explored the mechanism of action and clinical effect of Aurora-B inhibitors in cancer treatment.
Animals ; Aurora Kinase B ; antagonists & inhibitors ; genetics ; metabolism ; Enzyme Activation ; Humans ; Mitosis ; Neoplasms ; drug therapy ; Protein Kinase Inhibitors ; pharmacology ; therapeutic use ; RNA, Messenger ; metabolism

OBJECTIVETo study the expression of Aurora-B in human glioma tissue and its significance.

METHODSThe total RNA was extracted from 41 human glioma tissues and 11 normal brain tissues by Trizol reagent. After reverse transcription of the total RNA into cDNAs, Aurora-B mRNA expressions in these samples were detected by quantitative real-time PCR. The protein expression in these samples was detected using immunohistochemical staining.

RESULTSAurora-B mRNA and protein expressions were significantly increased in glioma tissues as compared with those in normal brain tissues.

CONCLUSIONAurora-B mRNA and protein show markedly higher expressions in glioma tissue, suggesting that Aurora-B may be one of the malignant biomarkers in the pathogenesis and progression of human glioma.

Aurora Kinase B ; Aurora Kinases ; Biomarkers, Tumor ; metabolism ; Brain Neoplasms ; enzymology ; pathology ; Female ; Glioma ; metabolism ; pathology ; Humans ; Male ; Protein-Serine-Threonine Kinases ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Tumor Cells, Cultured

OBJECTIVETo study the expression of Aurora-B in non-small cell lung cancer (NSCLC) tissues and NSCLC cell lines.

METHODAurora-B expression was examined using immunohistochemical SP method in 91 stage I and 69 stage II-III NSCLC tissues and 40 adjacent tissues. The mRNA and protein expressions of Aurora-B in NSCLC cell lines (A549, H460 and H1299) were examined by RT-PCR and Western blotting, respectively.

RESULTSThe protein expression of Aurora-B was detected in 77.7% (94/121) of the tumor tissues and 9.8% (4/41) of the adjacent tissues, showing a significant difference between them (P<0.01). The positivity rate of Aurora-B protein was not related with the gender and age of NSCLC patients, but with lymph node metastasis, differentiation and histological type of NSCLC (P<0.05). Aurora-B was expressed in all the NSCLC cell lines (A549, H460 and H1299) at both mRNA and protein levels. A549 cells showed the highest expression of Aurora-B.

CONCLUSIONAurora-B protein is highly expressed in NSCLC tissues and cell lines, and may play a crucial role in the invasion, metastasis and development of NSCLC. The mRNA and protein expression levels of Aurora-B differ significantly between different NSCLC cell lines.

Adult ; Aged ; Aged, 80 and over ; Aurora Kinase B ; Aurora Kinases ; Carcinoma, Non-Small-Cell Lung ; metabolism ; pathology ; Female ; Humans ; Lung Neoplasms ; metabolism ; pathology ; Lymphatic Metastasis ; Male ; Middle Aged ; Protein-Serine-Threonine Kinases ; genetics ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Tumor Cells, Cultured

OBJECTIVETo investigate the frequencies of alleles and the association with risk of esophageal cancer in a Mongolian population, and to compare the allele frequencies of these polymorphisms between the two populations and the susceptibility to esophageal cancer.

METHODSA case-control study was conducted, and 8 single nucleotide polymorphisms (SNP), including FAS - 670G/A, FAS - 1377G/A, FASL -844T/C, COX-2 - 1290A/G, COX-2 - 1195G/A, STK15 Phe31Ile, MMP-2 - 1306C/T and MMP -2 -735C/T, were detected by polymerase chain reaction-based restriction fragment length polymorphism assay (PCR-RFLP) in 188 esophageal cancer cases and 324 normal controls of Mongolian. The odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by unconditional logistic regression. The results were then compared with the reported data of the Han ethnic Chinese population.

RESULTSIn Mongolian, as compared with the STK15 31Ile/Ile genotype, the STK15 31Phe/Phe genotype carriers had an increased risk of esophageal cancer (adjusted OR = 2.20, 95% CI: 1.12-4.31), and the subjects with MMP-2 - 735TT genotype had an increased risk of esophageal cancer as compared with those with the MMP-2 - 735CC genotype (adjusted OR =4.82, 95% CI: 1.59 - 14.60). However, the rest of SNPs were not associated with the susceptibility to esophageal cancer. The allele frequencies of FASL - 844 T/C [0.264(171/648)/0.736 (477/648), 0.323(418/1296)/0.677(878/1296)], COX-2 - 1195G/A [0.431(279/648)/0.569(369/ 648), 0.492(1250/2540)/0.508(1290/2540)], MMP-2 - 1306C/T [0.869(563/648)/0.131(85/ 648), 0.835(1298/1554)/0.165(256/1554)] and MMP-2 - 735C/T [0.789(511/648)/0.211(137/ 648), 0.748(1163/1554)/0.252(391/1554)] were significantly different between the ethnic populations (chi2 = 7.03, 7.84, 3.94, 4.05, respectively, P <0.05).

CONCLUSIONThese findings suggested that STK15 Phe31Ile and MMP-2 -735C/T polymorphisms might be the genetic susceptibility factors for esophageal cancer in Mongolian and there should be some differences of genetic susceptibility to esophageal cancer in between Han ethnic Chinese and Mongolian population.

Adult ; Aged ; Asian Continental Ancestry Group ; genetics ; Aurora Kinase A ; Aurora Kinases ; Case-Control Studies ; Esophageal Neoplasms ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Male ; Matrix Metalloproteinase 2 ; genetics ; Middle Aged ; Polymorphism, Single Nucleotide ; Protein-Serine-Threonine Kinases ; genetics

OBJECTIVETo study the relation between single nucleotide polymorphism(SNP) at the 91T-->A(Phe31Ile) position of the STK15 gene and the susceptibility of esophageal squamous cell carcinoma (ESCC) in She county--a ESCC high incidence region in North China.

METHODSPolymerase-chain reaction(PCR)-restriction fragment length polymorphism (RFLP) analysis was used to detect the genotypes of STKl5 Phe31Ile(91T-->A) SNP, and the samples came from 296 ESCC patients and 302 healthy controls.

RESULTSThe risk of ESCC significantly increased in the group which had been smoking or having a family history of upper gastrointestinal cancer (UGIC) (the OR = 1.68 and 1.77, 95% CI: 1.34-2.10 and 1.44-2.19, respectively). Rates of the three genotypes (Phe/Phe, Phe/Ile, Ile/Ile) of the STK15 Phe31Ile (91T-->A) SNPs in ESCC patients were 11.5%, 34.8% and 53.7%, respectively, and were not significantly different from that in the healthy group (11.9%, 36.8% and 51.3%) (chi2 = 0.35, P = 0.84). When compared to Phe/Phe genotype, Phe/Ile and Ile/Ile of STK15 91T-->A(Phe31Ile)did not show effect on the risk of ESCC according to the odds ratio results which were 0.98 (95% CI: 0.57-1.69) and 1.09 (0.65-1.82) respectively. STK15 91T-->A (Phe31Ile) SNP also did not significantly influence on the development of ESCC even the samples were stratified by sex, smoking status and family history of upper gastrointestinal cancer.

CONCLUSIONThe STK15 Phe31Ile(91T-->A) polymorphisms seemed irrelevant with the risk of ESCC in She county.

Aurora Kinase A ; Aurora Kinases ; Carcinoma, Squamous Cell ; genetics ; Case-Control Studies ; Esophageal Neoplasms ; genetics ; Genetic Predisposition to Disease ; Genotype ; Humans ; Polymorphism, Single Nucleotide ; Protein-Serine-Threonine Kinases ; genetics

OBJECTIVETo detect the gene expression profile in gastric cancer cell cycle and explain the mechanism of gastric cancer cell proliferation by a genomic study.

METHODSGastric cancer cells MKN45 were synchronized at G2/M and G1/S point by nocodazole-thymidine and double thymidine methods. The synchronizing degree of cells was monitored by flow cytometry. The gene expression profiles at G2/M point, M/G1 transition, G1 early phase, G1 late phase, G1/S point, S early phase, S late phase, G2 early phase and G2 late phase in MKN45 cell cycling were examined using cDNA microarray chips. Hierarchy analysis was conducted with a professional software package and the up-regulated genes at G1 late and G2 phase were analyzed according to gene database. Furthermore, the mRNA level of cyclin E, cyclin B, plk1 and STK15 in above mentioned nine points were measured by quatitative PCR.

RESULTS2001 genes were detected to be available at all 9 points via software processing, out of which 959 appeared up-regulated or down-regulated. 379 genes showed to be up-regulated at late G1 (147) or G2 phases (232), 40 at S and M phases (also up-regulated at G1 late and G2 phases). The 147 up-regulated genes at G1 late phase are involved in DNA metabolism, transcription and translation, protein transportation, ubiquitination and signal transduction, etc. The 232 up-regulated genes in G2 phase are involved in RNA synthesis and processing, intracellular protein transportation, cytoskeleton synthesis, signal transduction, apoptosis and anti-apoptosis, transcription regulation, ubiquitination, mitosis regulation and oncogene expression, etc. The mRNA level of 4 genes detected by quantitative PCR during cell cycle was in agreement with that detected by microarray.

CONCLUSIONDuring MKN45 cell cycling, the preparation for DNA synthesis and chromosome separation are conducted in G1 and G2, which are implicated in multiple genes, may be the main impetus of driving MKN45 cell cycle. Some of these genes may be related to tumor over-proliferation. The cDNA microarray technique has characteristic features such as reliability and can provide a great deal for future research on cell cycle related genes in gastric cancer.

Aurora Kinase A ; Aurora Kinases ; Cell Cycle ; genetics ; Cell Cycle Proteins ; genetics ; Cell Line, Tumor ; Cyclin B ; genetics ; Cyclin E ; genetics ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Humans ; Oligonucleotide Array Sequence Analysis ; methods ; Polymerase Chain Reaction ; methods ; Protein-Serine-Threonine Kinases ; genetics ; Proto-Oncogene Proteins ; genetics ; RNA, Messenger ; genetics ; metabolism ; Stomach Neoplasms ; genetics ; pathology