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美国Seracare过敏原质控品Allergens Rast scores
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过敏原质控品Allergens Rast scores
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Seracare
该研究小组发现，两种不同的B细胞谱系抗体联手，刺激备受追捧的广谱中和抗体对抗HIV。该研究组由杜克大学艾滋病毒/艾滋病疫苗免疫学，免疫原发现(CHAVI-ID)中心杜克大学人类疫苗研究所的主任巴顿·海恩斯，以及该疫苗研究中心的国家过敏和传染病研究所(NIAID)的主任John Mascola医学博士所的。
海恩斯说，这些可中和多种hiv病毒株的抗体的激活是是一个性疫苗的关键策略。高水平的这种抗体在约20%的艾滋病毒感染者中产生。
去年，该研究组在Nature杂志上*描述广谱中和抗体(bnAbs)的共同进化，以及病毒激活感染者内的这些抗体。现在，同样的研究小组报告了患者体内的免疫系统的B细胞学会中和许多种HIV病毒株的确切机制。
在这项新研究中，科学家惊讶地发现，一个辅助的中和抗体组和交叉反应中和抗体合作，产生一套强而有力的广谱中和抗体。其他辅助谱系包含与导致感染的病毒中和的抗体。
这种抗体靶向病毒的外膜区域，该区域也能够与广谱中和抗体结合。在这样做时，辅助谱系抗体选择具有较强能力的病毒刺激广谱中和抗体系。
因此，一组抗体选择一组病毒逃逸突变体“教导”广谱中和抗体系如何中和HIV变种。科学家推测，这个过程会反复发生在整个感染中，导致中和多种HIV毒株的抗体谱的产生。
“一个bnAb谱系的成熟可以通过辅助谱系来提升的这一发现，对艾滋病疫苗的发展有着重要的影响，”文章*作者、杜克大学人类疫苗研究所Feng Gao博士说。“来自于初始传播/原始病毒的免疫原的反复免疫，以及逃避变体与bnAb谱系具有更高的结合能力，都可能需要激活bnAbs。”
“下一步是要在能够产生广谱中和抗体的其他个体中进行类似的研究，并确定诱导这种抗体的其他特异性是一个普遍的机制，” 海恩斯说。“然后，zui终证明，这一发现可用于设计可诱导广谱中和抗体的免疫原。”
利用这项研究的结果，该研究模仿自然感染艾滋病毒的光谱中和抗体发展，已经设计出一种疫苗免疫原，有选择性地触发产生抗体的B细胞进行合作，产生广谱中和抗体。
随着癌症的发育，正常的血液供给慢慢不能满足其需求，因此过度生长的肿瘤组织吸收的氧气量就会比正常组织少，这种低氧环境称之为缺氧状态，缺氧状态往往和不同类型的恶性肿瘤的发生相关。
这项研究中研究人员利用结肠癌组织进行研究发现，缺氧条件可以诱发关键的肿瘤抑制基因MLH1发生沉默;与此同时研究人员也发现了一种名为LSD1的酶类，这种酶是一种赖氨酸特殊的脱甲基酶，酶类LSD1连同MLH1都可以作为逆转或者阻断沉默过程的靶点;由于LSD1是一种特殊酶类，因此科学家们可以利用小分子对其产生的靶向作用来抑制其活性。
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The team found that two different B-cell lineage antibodies work in tandem to stimulate the highly sought-after broad-spectrum neutralizing antibodies against HIV. The research team was led by Barton Haynes, director of the Duke University HIV Vaccine Immunology, Duke University Center for Human Immunization Discovery (CHAVI-ID) Center at Duke University, and the National Allergy and Infectious Diseases Led by John Mascola, MD, director of the Institute (NIAID).
Haynes said the activation of antibodies that neutralize multiple hiv strains is a key strategy for a global vaccine. High levels of this antibody are produced in about 20% of HIV-infected individuals.
Last year, the team first described in Nature the co-evolution of broad-spectrum neutralizing antibodies (bnAbs), and the virus activates these antibodies in infected individuals. The same team now reports on the exact mechanism by which B cells in the immune system in a patient learn to neutralize many types of HIV strains.
In this new study, scientists were surprised to find that a co-neutralizing antibody group works with cross-reacting neutralizing antibodies to produce a robust set of broad-spectrum neutralizing antibodies. Other accessory lineages contain antibodies that neutralize the virus that causes the infection.
This antibody targets the outer membrane region of the virus, which is also capable of binding to a broad spectrum of neutralizing antibodies. In doing so, the accessory lineage antibody selects a more competent virus to stimulate the broad-spectrum neutralizing antibody system.
Thus, a panel of antibodies selected from a group of virus escape mutants "teaches" how broad-spectrum neutralizing antigens neutralize HIV variants. Scientists speculate that this process occurs repeatedly throughout the infection, resulting in the production of antibody profiles that neutralize multiple HIV strains.
"The discovery that the maturation of a bnAb lineage can be enhanced by ancillary lineages has a significant impact on the development of an AIDS vaccine," said lead author Feng Gao, PhD, of Duke University's Human Vaccine Institute. "Repeated immunizations from immunogens that originate / originate the virus, and the ability of escape variants to bind to the bnAb lineage, may require the activation of bnAbs."
"The next step is to do similar research in other individuals that are capable of producing broad-spectrum neutralizing antibodies and to establish that other specificities that induce such antibodies are a common mechanism," Haines said. "And then it turns out that this finding can be used to design immunogens that induce broad-spectrum neutralizing antibodies."
Using the results of this study, which mimicked the development of neutralizing antibodies in naturally infected HIV, a vaccine immunogen has been designed that selectively triggers the production of antibody-producing B cells to produce broad-spectrum neutralizing antibodies.
With the development of cancer, the normal blood supply slowly can not meet their needs, so excessive growth of tumor tissue to absorb oxygen than the normal tissue less, this hypoxic environment called hypoxia, hypoxia often And different types of malignancies related to the occurrence.
In this study, researchers using colon cancer tissue research found that hypoxia can induce key tumor suppressor gene MLH1 silence; at the same time researchers also found a class called LSD1 enzymes, this enzyme is a Species of lysine-specific demethylase, enzymes LSD1 together with MLH1 can be used as a reversal or block the target of the process of silencing; because LSD1 is a special enzyme, so scientists can use small molecules on their target To act to inhibit its activity.
