A specific cytotoxic agent against gastric cancer was constructed by covalently coupling the ricin A chain to monoclonal artibody, MGb2. MGb2 was modified by SPDP to introduce the 3-(2-pyridylthio) propionyl radical a...A specific cytotoxic agent against gastric cancer was constructed by covalently coupling the ricin A chain to monoclonal artibody, MGb2. MGb2 was modified by SPDP to introduce the 3-(2-pyridylthio) propionyl radical and then treated with a reduced A chain to give a disulfide linked conjugate that retained the original binding specificity of the antibody moiety. The conjugate obtained retained the activity of the antibody and the biological activity of the A chain well.展开更多
Objective：To assess the efficacy of Chinese medicine（CM） on patients with pancreatic cancer（PC） in a retrospective population-based study.Methods：Between January 1,2013,and August 30,2016,according to whether re...Objective：To assess the efficacy of Chinese medicine（CM） on patients with pancreatic cancer（PC） in a retrospective population-based study.Methods：Between January 1,2013,and August 30,2016,according to whether received Western medicine treatment,the patients were included into either integrative medicine（IM） group or CM group.All enrolled patients were orally administrated with Gexia Zhuyu Decoction（膈下逐瘀汤） or Liujun Ermu Decoction（六君二母汤） by syndrome differentiation,twice a day,last for at least 2 months.The primary end point was overall survival（OS）.Results：A total of 174 patients with PC were enrolled in this study.In stage Ⅰ/Ⅱ,the median OS was 20.5 months in the IM group [95% confidence interval（CI）,12.499 to 28.501] and 11.17 months in the CM group（95% CI,5.160 to 17.180,P=0.015）.The 1-and 2-year survival rates for the two groups were 47.0%,40.0% and 21.0%,21.0%,respectively.In stage Ⅲ/Ⅳ,median OS was 13.53 months（95% CI,8.665 to 18.395） in the IM group versus 6.4 months（95% CI,0.00 to 15.682） in the CM group,respectively（P=0.32）.The 1-and 2-year survival rate for the IM and CM groups were 27.0%,7.0% and 20.0%,2.0%,respectively.Conclusions：Intervention of CM contributes to the different survival benefits for PC in different stages.Multimodality treatment might be a promising strategy for PC patients in early stage.While,in advanced stage,CM might be an alternative candidate for PC patients.展开更多
Artemisinin and its derivatives have emerged as promising therapeutic agents for cancer therapy by endogenous iron-mediated generation of free radicals.However,the enhanced antioxidant defense systems in cancer cells ...Artemisinin and its derivatives have emerged as promising therapeutic agents for cancer therapy by endogenous iron-mediated generation of free radicals.However,the enhanced antioxidant defense systems in cancer cells provide them with resistance to oxidative damage,greatly antagonizing the therapeutic efficacy that relies on inducing oxidative stress.Herein,a metal-organic framework(MOF)-based nanoplatform(CMD)is constructed to disrupt the cellular redox homeostasis and selectively potentiate the cytotoxicity of dihydroartemisinin for cancer therapy.In cancer cells,the copper(II)sites in the MOF nanocarrier of CMD can efficiently weaken the cellular antioxidant capacity by depleting the overexpressed glutathione,simultaneously leading to the decomposition of the framework structure and the release of the encapsulated dihydroartemisinin.As a result,the damaged antioxidant defense system of cancer cells reduces its effect on oxidative stress alleviation and strengthens the therapeutic efficacy of dihydroartemisinin.On contrast,the low concentration of cellular glutathione in normal cells protects them from dihydroartemisinin-induced cytotoxicity by decelerating the drug release.In vivo results demonstrate that CMD could completely suppress the tumor growth in mice and show no evidence of toxicity,providing an effective strategy for the practical usage of dihydroartemisinin in cancer therapy.展开更多
I The Cancer Pain Problem:(1) Cleeland CS. Darriers to the management of cancer pain. Oncology 1987, April(Special Suppl. ) : 19--26.(2) Morgan JP, Pleet DL. Opiophobia in the United States : the undertreatment of sev...I The Cancer Pain Problem:(1) Cleeland CS. Darriers to the management of cancer pain. Oncology 1987, April(Special Suppl. ) : 19--26.(2) Morgan JP, Pleet DL. Opiophobia in the United States : the undertreatment of severepain. In: Morgan JP, Kagan DV, eds. Society and Medication: Conflicting Signals forPrescribers and Patients. Levington, MA : Lexington Press, 1983: 313--326.展开更多
In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an...In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an inductive logic programming approach to the problem of modeling evolution patterns for breast cancer. Using this approach, it is possible to extract fingerprints of stages of the disease that can be used in order to develop and deliver the most adequate therapies to patients. Furthermore, such a model can help physicians and biologists in the elucidation of molecular dynamics underlying the aberrations-waterfall model behind carcinogenesis. By showing results obtained some hints about further approach to the hypotheses. on a real-world dataset, we try to give knowledge-driven validations of such展开更多
文摘A specific cytotoxic agent against gastric cancer was constructed by covalently coupling the ricin A chain to monoclonal artibody, MGb2. MGb2 was modified by SPDP to introduce the 3-(2-pyridylthio) propionyl radical and then treated with a reduced A chain to give a disulfide linked conjugate that retained the original binding specificity of the antibody moiety. The conjugate obtained retained the activity of the antibody and the biological activity of the A chain well.
基金Supported by the National Natural Science Foundation of China(No.81673797)
文摘Objective：To assess the efficacy of Chinese medicine（CM） on patients with pancreatic cancer（PC） in a retrospective population-based study.Methods：Between January 1,2013,and August 30,2016,according to whether received Western medicine treatment,the patients were included into either integrative medicine（IM） group or CM group.All enrolled patients were orally administrated with Gexia Zhuyu Decoction（膈下逐瘀汤） or Liujun Ermu Decoction（六君二母汤） by syndrome differentiation,twice a day,last for at least 2 months.The primary end point was overall survival（OS）.Results：A total of 174 patients with PC were enrolled in this study.In stage Ⅰ/Ⅱ,the median OS was 20.5 months in the IM group [95% confidence interval（CI）,12.499 to 28.501] and 11.17 months in the CM group（95% CI,5.160 to 17.180,P=0.015）.The 1-and 2-year survival rates for the two groups were 47.0%,40.0% and 21.0%,21.0%,respectively.In stage Ⅲ/Ⅳ,median OS was 13.53 months（95% CI,8.665 to 18.395） in the IM group versus 6.4 months（95% CI,0.00 to 15.682） in the CM group,respectively（P=0.32）.The 1-and 2-year survival rate for the IM and CM groups were 27.0%,7.0% and 20.0%,2.0%,respectively.Conclusions：Intervention of CM contributes to the different survival benefits for PC in different stages.Multimodality treatment might be a promising strategy for PC patients in early stage.While,in advanced stage,CM might be an alternative candidate for PC patients.
基金the Program of Science and Technology Development Plan of Jilin Province of China(No.20200201099JC)the National Natural Science Foundation of China(Nos.21871249 and 22105197).
文摘Artemisinin and its derivatives have emerged as promising therapeutic agents for cancer therapy by endogenous iron-mediated generation of free radicals.However,the enhanced antioxidant defense systems in cancer cells provide them with resistance to oxidative damage,greatly antagonizing the therapeutic efficacy that relies on inducing oxidative stress.Herein,a metal-organic framework(MOF)-based nanoplatform(CMD)is constructed to disrupt the cellular redox homeostasis and selectively potentiate the cytotoxicity of dihydroartemisinin for cancer therapy.In cancer cells,the copper(II)sites in the MOF nanocarrier of CMD can efficiently weaken the cellular antioxidant capacity by depleting the overexpressed glutathione,simultaneously leading to the decomposition of the framework structure and the release of the encapsulated dihydroartemisinin.As a result,the damaged antioxidant defense system of cancer cells reduces its effect on oxidative stress alleviation and strengthens the therapeutic efficacy of dihydroartemisinin.On contrast,the low concentration of cellular glutathione in normal cells protects them from dihydroartemisinin-induced cytotoxicity by decelerating the drug release.In vivo results demonstrate that CMD could completely suppress the tumor growth in mice and show no evidence of toxicity,providing an effective strategy for the practical usage of dihydroartemisinin in cancer therapy.
文摘I The Cancer Pain Problem:(1) Cleeland CS. Darriers to the management of cancer pain. Oncology 1987, April(Special Suppl. ) : 19--26.(2) Morgan JP, Pleet DL. Opiophobia in the United States : the undertreatment of severepain. In: Morgan JP, Kagan DV, eds. Society and Medication: Conflicting Signals forPrescribers and Patients. Levington, MA : Lexington Press, 1983: 313--326.
文摘In considering key events of genomic disorders in the development and progression of cancer, the correlation between genomic instability and carcinogenesis is currently under investigation. In this work, we propose an inductive logic programming approach to the problem of modeling evolution patterns for breast cancer. Using this approach, it is possible to extract fingerprints of stages of the disease that can be used in order to develop and deliver the most adequate therapies to patients. Furthermore, such a model can help physicians and biologists in the elucidation of molecular dynamics underlying the aberrations-waterfall model behind carcinogenesis. By showing results obtained some hints about further approach to the hypotheses. on a real-world dataset, we try to give knowledge-driven validations of such
