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Validity of bioelectrical impedance analysis to assess fat‐free mass in patients with head and neck cancer: An exploratory study
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695.
Baek-hui Kim MD PhD Woon Yong Jung MD PhD Hyunjoo Lee MD PhD Youngran Kang MD MS You-Jin Jang MD PhD Soon Won Hong MD PhD Hyeong-jae Jeong MT Sun Och Yoon MD PhD 《Annals of surgical oncology》2014,21(6):2020-2027
Background
Lysyl-tRNA synthetase (KRS) is an aminoacyl-tRNA synthetase (ARS) that is essential for protein synthesis during ligation of specific amino acids to their cognate tRNAs. Aberrant expression of ARSs is associated with various human cancers.Methods
Using immunohistochemical detection, the present study analyzed the clinical relevance of KRS expression in tumor cells and tumor-associated inflammatory cells (TAI) in 457 patients who underwent curative radical surgery and standard adjuvant therapy and who were observed on long-term follow-up.Results
High expression of KRS in tumor cells (tumor–KRS(+)) was noted in 43.3 % (198 of 457) of cases. High expression of KRS in tumor-associated inflammatory cells (TAI–KRS(+)) including macrophages/monocytes, CD4-positive T cells, and/or neutrophils was observed in 37.2 % (170 of 457) of cases. Status of KRS in the tumor and TAI revealed an association with the known clinicopathological parameters for prognosis of gastric cancer. Tumor–KRS(+) status correlated to shorter overall survival, especially in stage III to IV cancers (P = 0.003), while TAI–KRS(+) status correlated significantly to longer overall survival in gastric cancer (P = 0.049). Cases with tumor–KRS(+) and TAI–KRS(?) status showed significantly reduced survival rates compared to those of other cases (P = 0.010), and status of tumor–KRS(+) and TAI–KRS(?) was revealed as an independently poor prognostic factor of overall survival (P = 0.001).Conclusions
KRS-related inflammation can be identified in a subset of gastric cancer. This may be a possible mechanism of immune surveillance against tumor progression. In addition, expression status of KRS in tumor and TAI may be an independent prognostic marker for gastric cancer patients. 相似文献696.
697.
HLA-DRB1*1502 allele,subtype of DR15, is associated with susceptibility to ulcerative colitis and its progression 总被引:8,自引:0,他引:8
Sachiko Futami MD Dr. Nobuo Aoyama MD Yoichiro Honsako MD Takao Tamura MD Shinsuke Morimoto MD Takatoshi Nakashima MD Akiyoshi Ohmoto MD Hiroyuki Okano MD Masaki Miyamoto MD Hiroyuki Inaba MT Taeko Naruse MT Yoshisuke Nose PhD Masato Kasuga MD PhD 《Digestive diseases and sciences》1995,40(4):814-818
HLA-DRB1 allele typing was performed by the PCR-RFLP method on 59 ulcerative colitis (UC) patients and 136 healthy controls. Phenotypic frequencies of HLA-B52 and DR2 were significantly increased among the UC patients, serologically. DNA typing of HLA-DRB1 revealed that the genotypic frequency of DRB1*1502 was higher in UC than in the controls (49.2% vs 17.6%;P<0.0001). In the analysis of clinical parameters, 82.8% of patients bearing DRB1*1502 were treated with corticosteroids. DRB1*1501 and DRB1*1502 differ in only one amino acid at residue 86 (valine vs glycine), and 66% of the UC patients carried two glycines at position 86 in the HLA-DR-chain (vs 51% of control;P<0.05). These observations suggest that the presence of Gly-86 in the HLA-chain and surrounding amino acid sequence of HLA-DRB1*1502 is strongly associated with susceptibility to UC. 相似文献
698.
699.
Cytosol intermediates in the transport of iron 总被引:1,自引:0,他引:1
Three 59Fe-labeled nonheme components of the cytosol were identified when rabbit reticuloyctes were incubated with 59Fe-labeled plasma under conditions in which the iron supply was not limiting. Two of these components were identified as ferritin and transferrin. The latter was characterized by gel filtration as having apparent molecular weight higher than transferrin, indicating that the transferrin may be complexed to another moiety. The third component, referred to as iron- binding protein-I (IBP-I), is as yet uncharacterized. When the reticulocytes were incubated with unlabeled plasma after pulse-labeling with 59Fe-labeled plasma, 59Fe radioactivity in these cytosol components decreased; after 15 min of chase, the 59Fe in ferritin, transferrin, and IBP-I fell to 64.6%, 26.5%, and 65.8% of the initial values, respectively. A good correlation existed between the decrease of 59Fe in these three nonheme compartments and the associated increase in 59Fe-heme. The data presented suggest that cytosol ferritin, transferrin, and IBP-I are intermediates in the transport of 59Fe from the plasma membrane to the mitochondria. 相似文献
700.
Generation of CFU-C/suppressor T cells in vitro: an experimental model for immune-mediated marrow failure 总被引:3,自引:0,他引:3
Bacigalupo A; Podesta M; Mingari MC; Moretta L; Piaggio G; Van Lint MT; Durando A; Marmont AM 《Blood》1981,57(3):491-496
T cells were derived from the bone marrow of 8 healthy donors and fractionated, according to their receptors for the Fc fragment of IgG, into TG+ and TG- lymphocytes. These were then cocultured with autologous or allogeneic bone marrow cells in agar in the CFU-C assay. No significant suppresion of colony formation could be detected. Total T, TG+, and TG- cells were then incubated for 18 hr with PWM, washed, and cocultured with bone marrow cells. PWM-treated TG- cells showed no significant CFU-C suppressor activity, whereas PWM-treated total T and TG+ cells inhibited colony formation of both autologous and allogeneic marrow cells. The supernatant of PWM-treated total T and TG+ cells also inhibited colony formation. PWM alone enhanced colony formation. The results of this study indicate that normal T cells can be activated in vitro to become CFU-C/suppressor cells after PWM stimulation, and that this effect is mediated by T cells with the Fc receptor for IgG. 相似文献