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Pathology of Peripheral Neuroblastic Tumors
Hiroyuki Shimada,Hideki Sano,Florette K. Hazard 대한소아혈액종양학회 2020 Clinical Pediatric Hematology-Oncology Vol.27 No.2
Peripheral neuroblastic tumors (pNTs including Neuroblastoma, Ganglioneuroblastoma and Ganglioneuroma) are biologically and clinically heterogeneous. In order to develop efficient clinical treatment protocols of this disease, patients are stratified into different risk groups based on the combination of so-called prognostic factors. In this review, the prognostic factors are classified as clinically defined (Clinical staging and Age at diagnosis), histopathologically defined [International Neuroblastoma Pathology Classification (INPC) distinguishing Favorable Histology (FH) Group and Unfavorable Histology (UH) Group] and genetically/molecularly defined [MYCN oncogene amplification, DNA index, Segmental chromosomal aberrations, ALK (Anaplastic Lymphoma Kinase) mutation/amplification and Abnormal maintenance/elongation of telomeres], are outlined. According to the Children’s Oncology Group (COG) Neuroblastoma studies, the survival rate of patients in low- or intermediate-risk group is more than 90%. In contrast, the survival rate of patients in the high-risk group remains less than 50% despite currently available high-intensity and multimodal therapy. As described in the genetically/molecularly defined prognostic factors, tumors in the high-risk group, majority of which are classified into the UH group according to the INPC, are molecularly heterogeneous. Based on the recent progress of precision medicine along with our correlative analyses between molecular alterations and their morphological manifestations, four subgroups; i.e., MYC subgroup, TERT subgroup, ALT subgroup and Null subgroup, are identified immunohistochemically in the UH group for future management of the patients with this unique d isease.
Shinji Matsumoto,Hideki Shimada,Takashi Sasaoka 한국지질과학협의회 2017 Geosciences Journal Vol.21 No.3
The disintegration of rocks by weathering plays an important role in the occurrence of Acid Mine Drainage (AMD), which is the environmental problem caused by the exposure of sulfide minerals to water and oxygen. The weathering of rocks is, generally, classified into physical or chemical weathering. However, there are few studies that focus on the complex interaction between physical and chemical weathering of rocks and on the effects of the interaction on the occurrence of AMD. This paper elucidates the complex interrelation between physical and chemical weathering of rocks as well as the progress of AMD through leaching test and weathering test with argillaceous rocks taken in open-cast coal mine in Indonesia in addition to sample analysis before and after the wetting and drying cycle: the rock samples were exposed to oxygen and water during the cycle. The results indicated that the argillaceous rocks which consist of sulfide and/or sulfate caused chemical weathering with micro-cracks on the surface of rocks through the dissolution of soluble iron and sulfur during the occurrence of AMD. Additionally, physical weathering of rocks due to clay minerals was accelerated by chemical weathering with the development of cracks with the occurrence of AMD in the argillaceous rocks containing kaolinite and pyrite. Although weathering of rocks also accelerated AMD, it was concluded that the sulfur content, the form of sulfur and iron in rocks, and the supply of oxygen significantly contributed to the occurrence of AMD.
Genomic Profiling Shows Increased Glucose Metabolism in Luminal B Breast Cancer
Shigeto Ueda,Hideki Takeuchi,Takashi Shigekawa,Kazuo Matsuura,Noriko Nakamiya,Hiroshi Sano,Hiroko Shimada,Eiko Hirokawa,Akihiko Osaki,Toshiaki Saeki 한국유방암학회 2013 Journal of breast cancer Vol.16 No.3
We had previously reported a close association between pathological response and the maximum tumor standardized uptake value (SUVmax) measured by 18F-fluorodeoxyglucose positron emission tomography prior to chemotherapy in estrogen receptor (ER)-positive breast cancer. We hypothesized that glucose hypermetabolism by luminal B tumors may result in chemotherapy responsiveness. Using a single-gene expression assay, TargetPrint® (Agendia) and a 70-gene expression classifier,MammaPrint® (Agendia), we divided 20 patients with ERpositive primary breast cancer into luminal A and luminal B subtypes and compared the tumor SUVmax value between the two groups. A significantly higher SUVmax was measured for luminal B tumors (n=10; mean±SD, 7.6±5.6) than for luminal A tumors (n=10; mean±SD, 2.6±1.2; p=0.01). Glucose hypermetabolism could help predict intrinsic subtyping and chemotherapy responsiveness as a supplement to ER, progesterone receptor, HER2,and Ki-67 histochemical scores.
Koji Matsuo,Muneaki Shimada,Tsuyoshi Saito,Kazuhiro Takehara,Hideki Tokunaga,Yoh Watanabe,Yukiharu Todo,Kenichirou Morishige,Mikio Mikami,Toru Sugiyama 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.1
Objective: To examine the surgical-pathological predictors of para-aortic lymph node (PAN) metastasis at radical hysterectomy, and for PAN recurrence among women who did not undergo PAN dissection at radical hysterectomy. Methods: This is a retrospective analysis of a nation-wide cohort study of surgically-treated stage IB–IIB cervical cancer (n=5,620). Multivariate models were used to identify independent surgical-pathological predictors for PAN metastasis/recurrence. Results: There were 120 (2.1%) cases of PAN metastasis at surgery with parametrial involvement (adjusted odds ratio [aOR]=1.65), deep stromal invasion (aOR=2.61), ovarian metastasis (aOR=3.10), and pelvic nodal metastasis (single-node aOR=5.39 and multiple-node aOR=33.5, respectively) being independent risk factors (all, p<0.05). Without any risk factors, the incidence of PAN metastasis was 0.9%, while women exhibiting certain risk factor patterns (>20% of the study population) had PAN metastasis incidences of ≥4%. Among 4,663 clinically PAN-negative cases at surgery, PAN recurrence was seen in 195 (4.2%) cases that was significantly higher than histologically PAN-negative cases (2.5%, p=0.046). In clinically PAN-negative cases, parametrial involvement (adjusted hazard ratio [aHR]=1.67), lympho-vascular space invasion (aHR=1.95), ovarian metastasis (aHR=2.60), and pelvic lymph node metastasis (single-node aHR=2.49 and multiple-node aHR=8.11, respectively) were independently associated with increased risk of PAN recurrence (all, p<0.05). Without any risk factors, 5-year PAN recurrence risk was 0.8%; however, women demonstrating certain risk factor patterns (>15% of the clinically PAN-negative population) had 5-year PAN recurrence risks being ≥8%. Conclusion: Surgical-pathological risk factors proposed in this study will be useful to identify women with increased risk of PAN metastasis/recurrence.
Wideband InterNetworking Engineering Test and Demonstration Satellite (WINDS) system
Kuramasu, Ryoichi,Araki, Tsunehiko,Shimada, Masaaki,Satoh, Tesuo,Tomita, Eiichi,Futamata, Ryosuke,Kuroda, Tomonori,Yajima, Masanobu,Maeda, Tsuyoshi,Uchida, Hideki,Mukai, Tatsuya,Kadowaki, Naoto,Nakao, 통신위성우주산업연구회 2002 Joint Conference on Satellite Communications Vol.2002 No.-
In April 2001 NASDA launched a new project called "WINDS", Wideband InterNetworking engineering test and Demonstration Satellite, to realize the requirement of Japanese Cabinet IT strategy called "e-Japan Priority Policy Program". The WINDS project is aimed at demonstrating technologies necessary to construct the satellite-based ultra high=speed global fixed wireless communications networks. Based on this objective, NASDA works with CRL to develop the WINDS experiment system to be launched in FY 2005. The WINDS experiment system is planned to demonstrate various experiments, using newly key technology such as multi-beam antenna/multi-port amplifier, Ka band active phased array antenna, on-board ATM switch and so on. This paper describes the concept and outline of the WINDS network experiment system.
Genetic aberrations on the short arm of chromosome 8 (8p) in tongue carcinomas
Akiyuki Murano,Kanae Ono,Hirofumi Koike,Yosuke Endo,Ken Shimada,Kenshi Kawasaki,Hitomi Nomura,Masashi Shiiba,Katsuhiro Uzawa,Hideki Tanzawa 대한구강악안면외과학회 2016 대한구강악안면외과학회지 Vol.38 No.2
Aberrations on the short arm of chromosome 8 (8p) are frequently observed in several human cancers. In this study, 20 squamous cell carcinoma (SCC) specimens from the tongue were examined in order to evaluate the role of 8p in SCC of the tongue. Microsatellite analysis using 14 markers demonstrated two commonly deleted regions (CDRs) on 8p. Reverse transcription-polymerase chain reaction (RT-PCR) revealed frequent downregulation of the FEZ1 gene, mapped to 8p22, and frequent over-expression of the cathepsin B gene, mapped to 8p-21-22. These results suggested that genetic aberrations are involved in the development of SCC of the tongue. However, no significant relationship was observed to be established between the genetic alterations and clinicopathological features. Thus, further investigation is necessary in order to clarify the clinical role of 8p in carcinoma of the tongue.