Kazuhiko Wakahara

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Most gene expression profiling studies of mesothelioma have been based on relatively small sample numbers, limiting their statistical power. We did Affymetrix U133A microarray analysis on 99 pleural mesotheliomas, in which multivariate analysis showed advanced-stage, sarcomatous histology and P16/CDKN2A homozygous deletion to be significant independent(More)
EWS-Fli1, a fusion gene resulting from the chromosomal translocation t(11;22, q24;q12), encodes a transcriptional activator, promotes cellular transformation, and is often found in Ewing sarcoma and primitive neuroectodermal tumor. The Aurora A and Aurora B kinases belong to a highly conserved family of serine/threonine protein kinases, are tightly(More)
EWS-Fli1, a fusion gene resulting from a chromosomal translocation t(11;22, q24;q12) and found in Ewing sarcoma and primitive neuroectodermal tumors, encodes a transcriptional activator and promotes cellular transformation. However, the precise biological functions of its products remain unknown. To investigate the role of EWS-Fli1 in cell growth signaling,(More)
BACKGROUND Little information has yet been made available on the types and mechanisms of snowboard-related spinal cord injuries or their neurologic involvement. PURPOSE To review the cause and types of spinal cord injuries seen in snowboarders. STUDY DESIGN Case series; Level of evidence, 4. METHODS The subjects were 18 patients (mean age, 24.0 years)(More)
BACKGROUND Little epidemiological research on characteristics of upper extremity injuries resulting from snowboarding has been conducted, particularly in relation to snowboarding stance, falling direction, and the side of the body where the injury occurs. HYPOTHESIS Snowboarding stance and the direction of the fall may influence the frequency of the side(More)
OBJECTIVE The purpose is to determine common injuries in recreational snowboarding as targets of preventive strategy and protective gear that reduces the overall risk of these injuries. METHODS The subjects comprised 5561 injured recreational snowboarders. On the basis of patients' self-reporting form, 'the common snowboarding injuries' (cut-off point(More)
Ewing sarcoma cells, of which over 85% retain chimeric fusion gene EWS/Fli-1, are by and large more resistant to chemotherapeutics compared to nonneoplastic cells. The purpose of this study is to determine the role of EWS/Fli-1 fusion and its downstream targets regarding the cells’ resistance against actinomycin D (ActD), which is one of the most commonly(More)
Bladder cancer-associated protein (BLCAP) is a novel candidate tumor suppressor gene identified from human bladder carcinoma and highly associated with the invasion of bladder cancer. We previously reported that it also plays a key role in the tumorigenesis and metastasis of human osteosarcoma. In the present study, we constructed a recombinant encoding(More)
We describe a 44-year-old woman who was diagnosed in childhood with vitamin D-resistant rickets, and who had paraparesis due to multiple spinal canal stenoses between C5 and L1 with ossification of the posterior longitudinal ligament and the yellow ligament. She was treated surgically with laminoplasty of the C2 through C7 levels and laminectomy from T8(More)