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广州市所在地
美国Seracare恰加斯病/南美锥虫 Chagas
广州健仑生物科技有限公司
广州健仑长期供应各种生物原料，主要代理品牌：美国Seracare、西班牙Certest、美国Fuller等等。
主要产品包括各种标准品、阳性对照品、单克隆抗原抗体。
其中常见的有：弓形虫病、西尼罗河病毒、类风湿因子、疟疾、麻疹、莱姆病、百日咳杆菌、大肠杆菌、鼠伤寒沙门氏菌、李斯特菌等阳性对照品。
美国Seracare恰加斯病/南美锥虫 Chagas
我司还提供其它进口或国产试剂盒：登革热、疟疾、流感、A链球菌、合胞病毒、腮病毒、乙脑、寨卡、黄热病、基孔肯雅热、克锥虫病、违禁品滥用、肺炎球菌、军团菌、化妆品检测、食品安全检测等试剂盒以及日本生研细菌分型诊断血清、德国SiFin诊断血清、丹麦SSI诊断血清等产品。
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【Seracare产品介绍】
编号 | 英文名称 | 中文名称 |
JL-FA-01 | Amebiasis (AME) | 阿米巴病 |
JL-FA-02 | Allergens, Rast scores | 过敏原，放射性过敏原吸收实验。指对特定的人群引起免疫反应或者过敏反应的食品中的蛋白质 |
JL-FA-03 | Allergens, Rast scores negative | 过敏原，放射性过敏原吸收实验阴性 |
JL-FA-04 | Anti-cyclic citrullinated peptide Antibody (CCP) Arthritis | 抗环瓜氨酸肽抗体 |
JL-FA-05 | ASCA Saccharomyces Cerevi | 人抗酿酒酵母抗体（ASCA） |
JL-FA-06 | Aspergillis | 麴菌病 |
JL-FA-07 | Beta 2 Glycoprotein | β2糖蛋白 |
JL-FA-08 | Beta 2 Glycoprotein IgM | β2糖蛋白 IGM |
JL-FA-09 | Bordela Pertussis | 百日咳杆菌 |
JL-FA-10 | Bordela Pertussis IgM | 百日咳杆菌 IGM |
JL-FA-11 | C-ANCA | C-抗中性粒细胞胞浆抗体（ANCA) |
JL-FA-12 | Cardiolipin | 心肌磷脂 |
JL-FA-13 | Cardiolipin IgA | 心肌磷脂 IGA |
JL-FA-14 | Cardiolipin IgG | 心肌磷脂 IGG |
JL-FA-15 | Cardiolipin IgM | 心肌磷脂 IGM |
JL-FA-16 | Cerebral Spinal Fluid | 脑脊髓液 |
JL-FA-17 | Chagas | 恰加斯病/南美锥虫 |
JL-FA-18 | Chlamydia | 衣原体 |
JL-FA-19 | Chlamydia IgA | 衣原体IGA |
JL-FA-20 | Chlamydia IgG | 衣原体IGG |
JL-FA-21 | Chlamydia IgM | 衣原体IGM |
JL-FA-22 | Chlamydia Neg | 衣原体阴性 |
JL-FA-23 | Clotting Factor C3 | 凝固因子C3 |
JL-FA-24 | Clotting Factor C4 | 凝固因子C4 |
JL-FA-25 | Coccidiodes | 球孢菌 |
JL-FA-26 | Cytomegalovirus (CMV) Neg | 巨细胞病毒抗体阴性 |
JL-FA-27 | CMV IgG | 巨细胞病毒 IGG阳性 |
JL-FA-28 | CMV IgM VCA | 巨细胞病毒 IGM 阳性 |
JL-FA-29 | C-Reactive Protein (CRP) | C-反应蛋白质 |
JL-FA-30 | Dengue Fever | 登革热 |
JL-FA-31 | Dengue Fever IgM | 登革热 IGM |
JL-FA-32 | DS (Double Stranded) DNA | 双链脱氧核糖核酸 |
JL-FA-33 | EBNA (Epstein-Barr nuclear antigen) IgG | EB病毒核抗原 IGG |
JL-FA-34 | EBNA (Epstein-Barr nuclear antigen) IgM | EB病毒核抗原 IGM |
JL-FA-35 | Epstein Barr Virus (EBV) Negative Plasma | EB病毒阴性血浆 |
JL-FA-36 | Epstein Barr Virus (EBV) EA IgM | EB病毒早期抗原 IGM |
JL-FA-37 | Epstein Barr Virus (EBV) VCA IgM | EB病毒壳蛋白 IGM |
JL-FA-38 | Epstein Barr Virus (EBV) EA IgG | EB病毒早期抗原 IGG |
JL-FA-39 | EMA (Endomysial Antibodies) | 肌内膜 |
JL-FA-40 | Gliadin | 麸蛋白,麦醇溶蛋白,麦胶蛋白 |
JL-FA-41 | Gliadin IgG | 麦醇溶蛋白 IGG |
JL-FA-42 | Gliadin IgA | 麦醇溶蛋白 IGA |
JL-FA-43 | Glomerular Basement Membrane (GBMA) | 肾小球基底膜病 |
JL-FA-44 | Helicobacter pylori IgA | 幽门螺旋杆菌IGA |
JL-FA-45 | Helicobacter pylori IgG | 幽门螺旋杆菌IGG |
JL-FA-46 | Helicobacter pylori IgM | 幽门螺旋杆菌IGM |
JL-FA-47 | Helicobacter pylori Negative | 幽门螺旋杆菌阴性 |
JL-FA-48 | Helicobacter pylori Positive Plasma | 幽门螺旋杆菌阴性血浆 |
JL-FA-49 | Hepatitis A Virus (HAV) Pos. Plasma | 甲型肝炎病毒阳性血浆 |
JL-FA-50 | Hepatitis A Virus (HAV) IgM | 甲型肝炎病毒IGM |
JL-FA-51 | Hepatitis B Core (HBc) IgG | 乙型肝炎病毒核心 IGG |
JL-FA-52 | Hepatitis B Core (HBc) IgM | 乙型肝炎病毒核心 IGM |
JL-FA-53 | Anti Hbe (Antibody to HBV antigen) | 乙肝抗体 |
JL-FA-54 | Hepatitis Delta Virus | 丁型肝炎病毒 |
JL-FA-55 | HBeAg (HBV e antigen) | 乙肝 E抗原 |
JL-FA-56 | anti-HBs (HBV surface antibody) | 乙肝表面抗体 |
JL-FA-57 | Hepatitis B (HBsAg) "Chronic" | 乙型肝炎（乙肝表面抗原）“慢性病 |
JL-FA-58 | HBsAg (HBV surface antigen) Serum | 乙肝表面抗原血清 |
JL-FA-59 | HBsAg (AD) | 乙肝表面抗原（AD） |
JL-FA-60 | HBsAg (AY) | 乙肝表面抗原（AY） |
JL-FA-61 | HBV Positive Plasma | 乙肝阳性血浆 |
JL-FA-62 | HBV DNA Plasma | 乙肝DNA血浆 |
JL-FA-63 | HBV DNA Serum | 乙肝DNA血清 |
JL-FA-64 | HBV DNA type A | A型 乙肝DNA |
JL-FA-65 | HBV DNA type B | B型 乙肝DNA |
JL-FA-66 | HBV DNA type C | C型 乙肝DNA |
JL-FA-67 | HBV DNA type D | D型 乙肝DNA |
JL-FA-68 | HBV DNA type E | E型 乙肝DNA |
JL-FA-69 | HBV DNA type F | F型 乙肝DNA |
JL-FA-70 | HBV Antibody HCV Antibody Plasma CO-INFECTED | 乙肝和丙肝联合感染血浆 |
JL-FA-71 | HCV (Hepatitis C Virus) Antibody | 丙型肝炎抗体 |
JL-FA-72 | HCV Core Antigen Positive | 丙肝核心抗原 阳性 |
JL-FA-73 | HCV RNA PLASMA Genotype 1 | 基因1型丙肝RNA 血浆 |
JL-FA-74 | HCV RNA PLASMA Genotype 2 | 基因2型丙肝RNA 血浆 |
JL-FA-75 | HCV RNA PLASMA Genotype 3 | 基因3型丙肝RNA 血浆 |
JL-FA-76 | HCV RNA PLASMA Genotype 4 | 基因4型丙肝RNA 血浆 |
JL-FA-77 | HCV RNA PLASMA Genotype 5 | 基因5型丙肝RNA 血浆 |
JL-FA-78 | HCV RNA PLASMA Genotype 6 | 基因6型丙肝RNA 血浆 |
JL-FA-79 | HCV Riba single band | 丙肝免疫印迹单波段 |
JL-FA-80 | HCV RIBA Pos. (multiple bands) | 丙肝免疫印迹阳性多波段 |
JL-FA-81 | HCV Negative | 丙肝阴性 |
JL-FA-82 | HCV RNA Pos (quantitative) | 丙肝RNA阳性（定量） |
JL-FA-83 | Hepatitis E | 戊型肝炎 |
JL-FA-84 | Herpes Simplex Virus (HSV)1/2 Positive Plasma | 单纯性疱疹病毒1/2阳性血浆 |
JL-FA-85 | Herpes Simplex Virus (HSV) 1 Negative Plasma | 单纯性疱疹病毒1 阴性血浆 |
JL-FA-86 | Herpes Simplex Virus (HSV) 1 IgG | 单纯性疱疹病毒1 IGG |
JL-FA-87 | Herpes Simplex Virus (HSV 1) IgM | 单纯性疱疹病毒1 IGM |
JL-FA-88 | Herpes Simplex Virus (HSV) 2 IgG | 单纯性疱疹病毒2 IGG |
JL-FA-89 | Herpes Simplex Virus (HSV) 2 IgM | 单纯性疱疹病毒2 IGG |
JL-FA-90 | Histone | 组蛋白 |
JL-FA-91 | Human Anti Mouse Ab (HAMA) | 人抗鼠抗体 |
JL-FA-92 | Human immunodeficiency virus (HIV) 1 Neg | HIV I 阴性 |
JL-FA-93 | anti Human immunodeficiency virus (HIV) 1 Plasma | 抗HIV I 血浆 |
JL-FA-94 | anti Human immunodeficiency virus (HIV) 1 Serum | 抗HIV I 血清 |
JL-FA-95 | anti Human immunodeficiency virus (HIV) 2 Western Blot Tested | 抗HIV 2 免疫印迹 |
JL-FA-96 | anti Human immunodeficiency virus (HIV) 1/2 2 HIV (+) | 抗HIV 1/2 2 HIV阳性 |
JL-FA-97 | Human immunodeficiency virus (HIV) Ag | HIV抗原 |
JL-FA-98 | HIV RNA (quantitative) Plasma | HIV RNA 定量血浆 |
JL-FA-99 | HIV RNA (quantitative) Serum | HIV RNA 定量血清 |
JL-FA-100 | HIV1 Subtype A | HIV1 亚型A |
JL-FA-101 | HIV1 Subtype B | HIV1 亚型B |
JL-FA-102 | HIV1 Subtype C | HIV1 亚型C |
JL-FA-103 | HIV1 Subtype D | HIV1 亚型D |
JL-FA-104 | HIV1 Subtype E | HIV1 亚型E |
JL-FA-105 | HIV1 Subtype F | HIV1 亚型F |
JL-FA-106 | HIV1 Subtype G | HIV1 亚型G |
JL-FA-107 | HIV1 Subtype H | HIV1 亚型H |
JL-FA-108 | HIV1 Subtype J | HIV1 亚型J |
JL-FA-109 | HIV1 Subtype K | HIV1 亚型K |
JL-FA-110 | HIV1 Group O | HIV1 亚型O |
JL-FA-111 | Human immunodeficiency virus (HIV) 2 Antibody Plasma | HIV 2 抗体血浆 |
JL-FA-112 | Human immunodeficiency virus (HIV) 2 Antibody Serum | HIV 2 抗体血清 |
JL-FA-113 | HPV (Human Papiloma Virus) Negative | 人乳状瘤病毒HPV阴性 |
JL-FA-114 | HPV (Human Papiloma Virus) Positive | 人乳状瘤病毒HPV阳性 |
JL-FA-115 | Human immunodeficiency virus (HIV) Antibody HCV Antibody Plasma COINFECTED | HIV 抗体 HCV |
JL-FA-116 | Human T-cell Lymphotropic Virus (HTLV) I/II | 人嗜T淋巴细胞病毒(HTLV) I/II |
JL-FA-117 | Human T-cell Lymphotropic Virus (HTLV) I | 人嗜T淋巴细胞病毒(HTLV) I |
JL-FA-118 | Human T-cell Lymphotropic Virus (HTLV) II | 人嗜T淋巴细胞病毒(HTLV) II |
JL-FA-119 | Jo-1 | 多发性肌炎抗原JO-1 |
JL-FA-120 | IgE < 5,000 Ku/L | IgE < 5,000 Ku/L |
JL-FA-121 | Legionella | 军团杆菌属 |
JL-FA-122 | Leptospira | 军团杆菌属 |
JL-FA-123 | Lyme Disease | 莱姆(氏)病:蜱传播的全身性疾病,常在夏季发生 |
JL-FA-124 | Lyme IgG | 莱姆(氏)病 IGG |
JL-FA-125 | Lyme IgM | 莱姆(氏)病 IGM |
JL-FA-126 | Lyme Disease Neg | 莱姆(氏)病 阴性 |
JL-FA-127 | Malaria | 疟疾 |
JL-FA-128 | Mononucleosis (infectious) | 单核细胞增多症（有传染性的） |
JL-FA-129 | Mononucleosis Negative | 单核细胞增多症阴性 |
JL-FA-130 | Measles Negative | 麻疹 阴性 |
JL-FA-131 | Measles IgG | 麻疹 IGG |
JL-FA-132 | Measles IgM | 麻疹 IGM |
JL-FA-133 | Microsomal Anti-thyroid peroxidase antibody (TPO) Positive Plasma Standard Titer (typically 1,000-3,000 IU/mL) | 微粒体抗甲状腺过氧化物酶抗体 |
JL-FA-134 | Microsomal Anti-thyroid peroxidase antibody (TPO) Negative Plasma | 微粒体抗甲状腺过氧化物酶抗体 |
JL-FA-135 | Anti-mitochondrial antibody (AMA) | 抗线粒体抗体 |
JL-FA-136 | Multiple Sclerosis | 多发性硬化症 |
JL-FA-137 | Mumps IgG | 流行性腮腺炎 IGG |
JL-FA-138 | Mumps Ab IgM | 流行性腮腺炎抗体 IGM |
JL-FA-139 | Mumps Antibody Negative Plasma | 流行性腮腺炎抗体阴性血浆 |
JL-FA-140 | Mumps Antibody Negative Serum | 流行性腮腺炎抗体阴性血清 |
JL-FA-141 | Myeloma Plasma | 骨髓瘤血浆 |
JL-FA-142 | Myeloma IgA | 骨髓瘤IGA |
JL-FA-143 | Myeloma IgE | 骨髓瘤IGE |
JL-FA-144 | Myeloma IgG | 骨髓瘤IGG |
JL-FA-145 | Myeloma IgM | 骨髓瘤IGM |
JL-FA-146 | Mycoplasma | 支原体 |
JL-FA-147 | Mycoplasma Negative | 支原体阴性 |
JL-FA-148 | Mycoplasma IgG | 支原体IGG |
JL-FA-149 | Mycoplasma IgM | 支原体IGM |
JL-FA-150 | Mycoplasma PCR | 支原体PCR |
JL-FA-151 | Normal Human Plasma | 正常人血浆 |
JL-FA-152 | Normal Human Serum | 正常人血清 |
JL-FA-153 | Nuclear Antibody Centromere | 核抗体着丝粒 |
JL-FA-154 | Nuclear Antibody, Speckled ANA | 核抗体，斑点抗核抗体 |
JL-FA-155 | Nuclear Antibody, Nucleolar ANA | 核抗体,核仁抗核抗体 |
JL-FA-156 | Nuclear Antibody, Homogeneous ANA | 核抗体，同质抗核抗体 |
JL-FA-157 | Nuclear Antiobody, Speckled. (ANA) Negative | 核抗体，斑点。抗核抗体阴性 |
JL-FA-158 | P-ANCA (associated neutrophil cytoplasmic antibodies) | 相关的嗜中性粒细胞胞浆抗体 |
JL-FA-159 | Parietal Cell Antibody (PCA) | 胃)壁细胞抗体 |
JL-FA-160 | Parvo positive plasma | 细小病毒阳性血浆 |
JL-FA-161 | Parvo IgM | 细小病毒 IGM |
JL-FA-162 | Parvo IgG | 细小病毒 IGG |
JL-FA-163 | Parvo Negative Plasma | 细小病毒阴性血浆 |
JL-FA-164 | Parvo DNA positive | 细小病毒 DNA 阳性 |
JL-FA-165 | Phospholipid Positive Plasma | 磷脂阳性血浆 |
JL-FA-166 | Prothrombin | 凝血酶原,凝血因子 |
JL-FA-167 | Rheumatoid Factor (RF) <1000 IU/mL | 类风湿因子<1000 IU/mL |
JL-FA-168 | Rheumatoid Factor (RF) 1001-2000 IU/mL | 类风湿因子1001-2000 IU/mL |
JL-FA-169 | Rheumatoid Factor (RF) 2001-4000 IU/mL | 类风湿因子 2001-4000 IU/mL |
JL-FA-170 | Rheumatoid Factor (RF) 4001-5000 IU/mL | 类风湿因子 4001-5000 IU/mL |
JL-FA-171 | Rheumatoid Factor (RF) >5000 IU/mL | 类风湿因子>5000 IU/mL |
JL-FA-172 | Ribonucleoprotein (RNP) Positive | 核糖核蛋白阳性 |
JL-FA-173 | Rubella Chimeric | 风疹 |
JL-FA-174 | Rubella Negative | 风疹阴性 |
JL-FA-175 | Rubella IgG | 风疹IGG |
JL-FA-176 | Rubella IgM | 风疹IGM |
JL-FA-177 | Rubeola Negative Plasma | 风疹阴性血浆 |
JL-FA-178 | Rubeola IgG | 风疹IGG |
JL-FA-179 | Scleroderma (Scl-70) Pos | 胶原沉着病,硬皮病,硬皮症 阳性 |
JL-FA-180 | Scleroderma (Scl-70) Negative | 硬皮病阴性 |
JL-FA-181 | Sickle Cell Fresh Whole Blood | 镰刀形红细胞新鲜全血 |
JL-FA-182 | Smith (SM) | 抗Smith抗体阳性血清（SLE的特征性抗体） |
JL-FA-183 | SMITH RNP | 抗RNP抗体阳性血清（SLE的特征性抗体） |
JL-FA-184 | Smooth Muscle (ASMA) | 抗平滑肌抗体阳性血清 |
JL-FA-185 | Sjogren syndrome antigen A (SSA) Positive | 舍格伦综合征或干燥综合征抗原A 阳性 |
JL-FA-186 | Sjogren syndrome antigen B (SSB) Positive | 舍格伦综合征抗原B 阳性 |
JL-FA-187 | Sjogren syndrome antigen B (SSB) Negative | 舍格伦综合征抗原B阴性 |
JL-FA-188 | Streptolysin O Ab (ASO) | 链球菌溶血素O抗体 |
JL-FA-189 | Syphilis (RPR - Rapid Plasma Reagin) Positive Plasma | 梅毒（梅毒-快速血浆反应）阳性血浆 |
JL-FA-190 | Syphilis (RPR - Rapid Plasma Reagin) Negative Plasma | 梅毒（梅毒-快速血浆反应）阴性血浆 |
JL-FA-191 | Syphilis/ATA/T. pallidum IgG | 梅毒ATA/T，苍白球IGG |
JL-FA-192 | Syphilis/ATA/T. pallidum IgM | 梅毒ATA/T，苍白球IGM |
JL-FA-193 | Systemic Lupus Erythematosus (SLE) Positive | 全身性红斑狼疮阳性 |
JL-FA-194 | Systemic Lupus Erythematosus (SLE) Negative | 全身性红斑狼疮阴性 |
JL-FA-195 | TG/TPO Positive (Standard Titer 1,000 - 3000 IU/mL) | 甲状腺球蛋白/甲状腺过氧化物酶阳性 |
JL-FA-196 | TG/TPO Negative | 甲状腺球蛋白/甲状腺过氧化物酶阴性 |
JL-FA-197 | TTG (Tissue Transglutaminase) | 组织转谷氨酰胺酶 |
JL-FA-198 | TTG (Tissue Transglutaminase) IgA | 组织转谷氨酰胺酶 IGA |
JL-FA-199 | ToRCH (Toxo, Rubella, CMV, HSV) Positive | 优生优育（弓形虫，风疹，巨细胞，单胞）阳性 |
JL-FA-200 | ToRCH (Toxo, Rubella, CMV, HSV) Negative | 优生优育（弓形虫，风疹，巨细胞，单胞）阴性 |
JL-FA-201 | Toxoplasmosis (Toxo) | 弓形虫病 |
JL-FA-202 | Toxoplasmosis (Toxo) IgG | 弓形虫病IGG |
JL-FA-203 | Toxoplasmosis (Toxo) IgM | 弓形虫病IGM |
JL-FA-204 | Thyroglobulin (TG) Positive Plasma | 甲状腺球蛋白阳性血浆 |
JL-FA-205 | Thyroglobulin (TG) Negative | 甲状腺球蛋白阴性 |
JL-FA-206 | Varicella-Zoster Virus (VZV) Negative | 水痘-带状疱疹病毒阴性 |
JL-FA-207 | Varicella-Zoster Virus (VZV) IgG | 水痘-带状疱疹病毒IGG |
JL-FA-208 | Varicella-Zoster Virus (VZV) IgM | 水痘-带状疱疹病毒IGM |
JL-FA-209 | West Nile Virus (WNV) | 西尼罗河脑炎病毒 |
JL-FA-210 | West Nile Virus (WNV) IgM | 西尼罗河脑炎病毒IGM |
美国
干扰素伪装免疫细胞
免疫生物学教授Annette Oxenius的研究小组现在发现，是什么阻止nk细胞杀死免疫系统的“来自于其他部门的同事”：健康CD8 +T细胞能够检测免疫信使物质1型干扰素，1型干扰素通过与这些免疫细胞的特定表面受体结合，从而隐藏它们的应激。换句话说，1型干扰素作为一种伪装斗篷使得免疫细胞不被NK细胞看见。如果T细胞缺乏1型干扰素的停泊位点，那么它们就会被NK细胞追杀直至灭绝。
使用感染两种模型病毒的小鼠，研究人员发现，如果动物的CD8 +t细胞缺乏这些干扰素的受体，不仅NK细胞消除感染病毒的细胞，而且免疫细胞也被认为采取了行动，从而削弱了抗病毒的免疫反应。
训练有素的细胞死亡信号
研究人员使用CD8 + T细胞没有任何1型干扰素受体的小鼠探索工作机制是如何运作的，以及缺乏1型干扰素的CD8 + T细胞是如何耗尽NK细胞的。如果没有自然杀手的存在，尽管缺乏干扰素检测，但T细胞依然会增多，成熟和发育。此外，瑞士苏黎世联邦理工学院的免疫生物学家发现，这些无需传感器的T细胞逐渐形成其表面的“识别标签”，一旦与NK细胞接触，就会引发NK细胞的杀伤作用。因此，这些“应激标签”的表达通过干扰素结合以及通过T细胞上的干扰素受体发出信号被抑制。如果由于受体的缺乏而阻止了信号的传输，那么细胞会大量表达这些应激分子。
自身免疫性疾病的机制?
到目前为止，尚不清楚人类是否具有相同的机制。然而，人类免疫系统用来保护T细胞避免NK细胞攻击的基本过程很可能是类似的。在一方面，研究人员现在揭示应激T细胞需要保护自己免受NK细胞攻击的机制。另一方面，这项发现形成了新的假设。例如，可以想到的是，缺乏干扰素受体的T细胞活化显示出它们为“应激的”，并因此杀死了。自身免疫反应性T细胞的活化过程中可能会出现这样的情况，例如，它通常发生在不存在高浓度的1型干扰素。Oxenius和她的团队有很浓厚的兴趣将在未来几年内测试这些令人兴奋的假设。
加州大学圣地亚哥分校的生物学家发现能够使动物细胞产生核糖体的化学系统中的‘未知环节’——每个细胞中含有数千蛋白‘工厂’加工所有建立组织和维持生命所必须的蛋白。他们的发现不仅强迫分子生物学基础教科书的修订，而且也为科学家提供较好的理解如何限制自由的细胞生长，如癌症，也许通过控制核糖体的输出来调节。这一研究发现发表在6月23日的《Genes & Development》期刊上。
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【公司名称】 广州健仑生物科技有限公司
【】 杨永汉
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【公司地址】 广州清华科技园创新基地番禺石楼镇创启路63号二期2幢101-3室
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Interferon disguises immune cells
Annette Oxenius' team of immunobiology professors now finds out what "colleagues from other departments" are preventing nk cells from killing the immune system: Healthy CD8 + T cells are able to detect immunocompetent substances Type 1 interferon, type 1 interferon By binding to specific surface receptors of these immune cells, their stress is hidden. In other words, type 1 interferons act as a camouflage cape so that immune cells are not seen by NK cells. If T cells lack type 1 interferon docking sites, they are killed by NK cells until they become extinct.
Using mice infected with both model viruses, the researchers found that if the animal's CD8 + T cells lacked these interferon receptors, not only did NK cells eliminate the virus-infected cells, but immune cells were also thought to have taken action that weakened Antiviral immune response.
Trained cell death signal
Researchers using mice that did not have any Type 1 interferon receptor on CD8 + T cells explored how the working mechanism works and how NK cells are depleted by CD8 + T cells lacking type 1 interferon. Without the existence of a natural killer, T-cells will continue to proliferate, mature, and develop despite the lack of interferon testing. In addition, immune biologists at the Federal Institute of Technology in Zurich, Switzerland, found that these sensorless T cells evolved to form "labels" on their surface that, when contacted with NK cells, elicited NK cell killing. Thus, the expression of these "stress tags" is inhibited by interferon binding as well as signaling by interferon receptors on T cells. If signaling is blocked because of lack of receptors, the cells express large quantities of these stressors.
Mechanisms of autoimmune diseases?
So far, it is unclear whether human beings have the same mechanism. However, the basic process that the human immune system uses to protect T cells from NK cell challenge is likely to be similar. On the one hand, researchers now reveal that stressed T cells need a mechanism to protect themselves from attack by NK cells. On the other hand, this finding has led to new assumptions. For example, it is conceivable that T-cell activation, which lacks interferon receptors, shows that they are "stressed" and therefore killed. This may occur during the activation of autoimmune reactive T cells, for example, it typically occurs in the absence of high concentrations of type 1 interferons. Oxenius and her team are very interested in testing these exciting assumptions in the coming years.
Biologists at the University of California, San Diego discovered the 'unknown' part of the chemical system that produces ribosomes in animal cells - thousands of proteins in each cell. The 'factory' processes all the proteins necessary to build and sustain life. Their findings not only force the revision of basic textbooks in molecular biology, but also provide scientists with a better understanding of how to limit free cell growth, such as cancer, perhaps by controlling ribosomal output. The study was published in the June 23 issue of Genes & Development.
