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重庆医学 2012年第9期41卷 878-880页

作者：余少鸿汤荣春 per H basse 云南省昆明市第一人民医院普外科 650011 美国匹兹堡大学肿瘤中心宾夕法尼亚州匹兹堡152131863

目的探讨联合应用自然杀伤(NK)细胞及细胞毒T细胞(CTL)对黑色素瘤B16细胞的作用。方法提取NK细胞及CTL,分别用白细胞介素-2(IL-2)(6 000、600IU/L)及植物血凝素(8μg/mL)活化,流式细胞仪检测细胞表面受体,将NK细胞及CTL互为靶细胞及效... 详细信息

目的探讨联合应用自然杀伤(NK)细胞及细胞毒T细胞(CTL)对黑色素瘤B16细胞的作用。方法提取NK细胞及CTL,分别用白细胞介素-2(IL-2)(6 000、600IU/L)及植物血凝素(8μg/mL)活化,流式细胞仪检测细胞表面受体,将NK细胞及CTL互为靶细胞及效应细胞进行细胞毒性实验;以黑色素瘤B16细胞为靶细胞检测CTL的杀伤率。结果 NK细胞表面受体NK1.1+的百分比在87%以上,NKp46+在90%以上;CTL表面受体CD3+的百分比在99%以上,CD8+在98%以上。NK细胞与CTL相互无细胞毒性,联合应用NK细胞与CTL明显增加对黑色素瘤B16细胞的杀伤作用。结论联合应用NK细胞及CTL对黑色素瘤B16细胞有协同杀伤作用。

关键词：黑色素瘤,实验性 T淋巴细胞,细胞毒性自然杀伤细胞

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NK细胞上清液提高CTL细胞对肿瘤细胞杀伤力及机制的研究

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重庆医学 2012年第21期41卷 2136-2138页

作者：余少鸿汤荣春 per H basse 云南省昆明市第一人民医院普外科 650011 美国匹兹堡大学肿瘤中心匹兹堡pa152131863

目的研究从白细胞介素2(IL-2)、IL-2+IL-12、IL-2+IL-18、IL-2+IL-12+IL-18活化的NK细胞提取的上清液是否能提高细胞毒性T细胞(CTL)对黑色素瘤细胞的杀伤率及其机制。方法提取NK细胞,IL-2 6 000IU/mL、IL-2 6 000IU/mL+IL-12 10ng/mL,IL-2 6 000IU/mL+IL-18 100ng/mL,IL-2 6 000IU/mL+IL-12 10ng/mL+IL-18 100ng/mL活化,3d后提取上清液,与M05细胞培养过夜,流式细胞仪检测肿瘤细胞表面Ⅰ类组织相容性抗原(MHCⅠ)表达,以其为靶细胞检测CTL细胞对M05细胞杀伤率。结果 NK细胞上清液提高M05细胞表面MHCⅠ分子表达及CTL细胞对M05细胞杀伤率。结论 NK细胞上清液能够增强CTL对肿瘤细胞的杀伤作用。

关键词：自然杀伤细胞白细胞介素12 白细胞介素18 组织相容性抗原Ⅰ类黑色素瘤细胞

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Evaluation of Silicon Phthalocyanine 4 Photodynamic Therapy against Human Cervical Cancer Cells in Vitro and in Mice

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Advances in Biological Chemistry 2016年第6期6卷 193-215页

作者： Jill A. Gadzinski Jianxia Guo Brian J. Philips per basse Ethan K. Craig Lisa Bailey Joseph Latoche John T. Comerci Julie L. Eiseman Department of Obstetrics/Gynecology/Reproductive Sciences Magee Women’s Hospital of the University of Pittsburgh Pittsburgh PA USA Cancer Therapeutics Program University of Pittsburgh Cancer Institute and Department of Pharmacology and Chemical Biology School of Medicine University of Pittsburgh Pittsburgh PA USA Cancer Immunology Program University of Pittsburgh Cancer Institute and Department of Immunology School of Medicine University of Pittsburgh Pittsburgh PA USA School of Medicine University of Pittsburgh Pittsburgh PA USA Department of Cardiology Molecular Imaging Center University of Pittsburgh School of Medicine Pittsburgh PA USA

Background: Cervical cancer is the second most common cancer in women worldwide [1]. Photodynamic therapy has been used for cervical intraepithelial neoplasia with good responses, but few studies have used newer phototherapeutics. We evaluated the effectiveness of photodynamic therapy using Pc 4 in vitro and in vivo against human cervical cancer cells. Methods: CaSki and ME-180 cancer cells were grown as monolayers and spheroids. Cell growth and cytotoxicity were measured using a methylthiazol tetrazolium assay. Pc 4 cellular uptake and intracellular distribution were determined. For in vitro Pc 4 photodynamic therapy, cells were irradiated at 667 nm at a fluence of 2.5 J/cm2 at 48 h. SCID mice were implanted with CaSki and ME-180 cells both subcutaneously and intracervically. Forty-eight hours after Pc 4 photodynamic therapy was administered at 75 and 150 J/cm2. Results: The IC50s for Pc 4 and Pc 4 photodynamic therapy for CaSki and ME-180 cells as monolayers were, 7.6 μM and 0.016 μM and >10 μM and 0.026 μM;as spheroids, IC50s of Pc 4 photodynamic therapy were, 0.26 μM and 0.01 μM. Pc 4 was taken up within cells and widely distributed in tumors and tissues. Intracervical photodynamic therapy resulted in tumor death, however mice died due to gastrointestinal toxicity. Photodynamic therapy resulted in subcutaneous tumor death and growth delay. Conclusions: Pc 4 photodynamic therapy caused death within cervical cancer cells and xenografts, supporting development of Pc 4 photodynamic therapy for treatment of cervical cancer. Support: P30-CA47904, CTSI BaCCoR Pilot Program.

关键词： Cervical Cancer Lasers Silicon Phthalocyanine 4 Photodynamic Therapy

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Assessment of Insulin Therapy in 281 Children and Adolescents with Type 1 Diabetes in Senegal

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Open Journal of Pediatrics 2022年第1期12卷 283-292页

作者： Djibril Boiro Amadou Sow Aliou Abdoulaye Ndongo Idrissa basse Lamine Thiam Ndiogou Seck Cheha Fatoumia Babacar Niang Modou Guéye Maïmouna Ndour Mbaye Ousmane Ndiaye Abass Ndao Hospital Dakar Senegal Aristide Le Dantec Hospital Dakar Senegal Diamniadio Children’s Hospital Dakar Senegal Ziguinchor Peace Hospital Dakar Senegal Saint Louis Regional Hospital Dakar Senegal Albert Royer Children’s Hospital Dakar Senegal

Introduction: In Senegal, with the CDIC “Changing Diabetes In children” project, insulin has been made free. The objective of this study was to evaluate the accessibility and modalities of insulin therapy in the management of type 1 diabetes. Methodology: This was a retrospective study including patients followed for type 1 diabetes (T1DM) in hospital between April 2018 and December 2020. Results: 281 patients were included. The mean age was 14.22 years. The mean age at diagnosis was 11.28 years. Ketoacidosis was the main mode of discovery of diabetes at 51.6%. Premix and rapid insulins were most commonly used at 84.7% and 82.9% respectively, most often in combination. The most commonly used treatment regimen was three injections/day in 82.5% of cases. The average daily insulin dose was 0.62 IU/Kg/dr. Of the patients, 219 (78%) were self-monitoring of blood glucose. The average number of blood glucose checks was 1.78 per day. 76 patients (27%) went days without an insulin injection and up to 7 days in 51% of cases. The main reasons were forgetfulness, therapeutic errors and stock-outs. Hypoglycaemia was observed in 14.2%. The average glycated haemoglobin was 10%. Conclusion: Despite the efforts made, there are still challenges to improve access to insulin. The reinforcement of therapeutic education on insulin therapy is essential for a better quality of life of diabetic children and adolescents.

关键词： Diabetes Children Insulin Therapy Senegal

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