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美國Seracare過敏原質控品Allergens Rast scores
廣州健侖生物科技有限公司
廣州健侖長期供應各種生物原料,主要代理品牌:美國Seracare、西班牙Certest、美國Fuller等等。
主要產品包括各種標準品、陽性對照品、單克隆抗原抗體。
其中常見的有:弓形蟲病、西尼羅河病毒、類風濕因子、瘧疾、麻疹、萊姆病、百日咳桿菌、大腸桿菌、鼠傷寒沙門氏菌、李斯特菌等陽性對照品。
美國Seracare過敏原質控品Allergens Rast scores
我司還提供其它進口或國產試劑盒:登革熱、瘧疾、流感、A鏈球菌、合胞病毒、腮病毒、乙腦、寨卡、黃熱病、基孔肯雅熱、克錐蟲病、違禁品濫用、肺炎球菌、軍團菌、化妝品檢測、食品安全檢測等試劑盒以及日本生研細菌分型診斷血清、德國SiFin診斷血清、丹麥SSI診斷血清等產品。
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【Seracare產品介紹】
編號 | 英文名稱 | 中文名稱 |
JL-FA-01 | Amebiasis (AME) | 阿米巴病 |
JL-FA-02 | Allergens, Rast scores | 過敏原,放射性過敏原吸收實驗。指對特定的人群引起免疫反應或者過敏反應的食品中的蛋白質 |
JL-FA-03 | Allergens, Rast scores negative | 過敏原,放射性過敏原吸收實驗陰性 |
JL-FA-04 | Anti-cyclic citrullinated peptide Antibody (CCP) Arthritis | 抗環瓜氨酸肽抗體 |
JL-FA-05 | ASCA Saccharomyces Cerevi | 人抗釀酒酵母抗體(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 | 百日咳桿菌 |
JL-FA-10 | Bordela Pertussis IgM | 百日咳桿菌 IGM |
JL-FA-11 | C-ANCA | C-抗中性粒細胞胞漿抗體(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 | 腦脊髓液 |
JL-FA-17 | Chagas | 恰加斯病/南美錐蟲 |
JL-FA-18 | Chlamydia | 衣原體 |
JL-FA-19 | Chlamydia IgA | 衣原體IGA |
JL-FA-20 | Chlamydia IgG | 衣原體IGG |
JL-FA-21 | Chlamydia IgM | 衣原體IGM |
JL-FA-22 | Chlamydia Neg | 衣原體陰性 |
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 | 巨細胞病毒抗體陰性 |
JL-FA-27 | CMV IgG | 巨細胞病毒 IGG陽性 |
JL-FA-28 | CMV IgM VCA | 巨細胞病毒 IGM 陽性 |
JL-FA-29 | C-Reactive Protein (CRP) | C-反應蛋白質 |
JL-FA-30 | Dengue Fever | 登革熱 |
JL-FA-31 | Dengue Fever IgM | 登革熱 IGM |
JL-FA-32 | DS (Double Stranded) DNA | 雙鏈脫氧核糖核酸 |
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病毒陰性血漿 |
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病毒殼蛋白 IGM |
JL-FA-38 | Epstein Barr Virus (EBV) EA IgG | EB病毒早期抗原 IGG |
JL-FA-39 | EMA (Endomysial Antibodies) | 肌內膜 |
JL-FA-40 | Gliadin | 麩蛋白,麥醇溶蛋白,麥膠蛋白 |
JL-FA-41 | Gliadin IgG | 麥醇溶蛋白 IGG |
JL-FA-42 | Gliadin IgA | 麥醇溶蛋白 IGA |
JL-FA-43 | Glomerular Basement Membrane (GBMA) | 腎小球基底膜病 |
JL-FA-44 | Helicobacter pylori IgA | 幽門螺旋桿菌IGA |
JL-FA-45 | Helicobacter pylori IgG | 幽門螺旋桿菌IGG |
JL-FA-46 | Helicobacter pylori IgM | 幽門螺旋桿菌IGM |
JL-FA-47 | Helicobacter pylori Negative | 幽門螺旋桿菌陰性 |
JL-FA-48 | Helicobacter pylori Positive Plasma | 幽門螺旋桿菌陰性血漿 |
JL-FA-49 | Hepatitis A Virus (HAV) Pos. Plasma | 甲型肝炎病毒陽性血漿 |
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) | 乙肝抗體 |
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) | 乙肝表面抗體 |
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 | 乙肝陽性血漿 |
JL-FA-62 | HBV DNA Plasma | 乙肝DNA血漿 |
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 | 乙肝和丙肝聯合感染血漿 |
JL-FA-71 | HCV (Hepatitis C Virus) Antibody | 丙型肝炎抗體 |
JL-FA-72 | HCV Core Antigen Positive | 丙肝核心抗原 陽性 |
JL-FA-73 | HCV RNA PLASMA Genotype 1 | 基因1型丙肝RNA 血漿 |
JL-FA-74 | HCV RNA PLASMA Genotype 2 | 基因2型丙肝RNA 血漿 |
JL-FA-75 | HCV RNA PLASMA Genotype 3 | 基因3型丙肝RNA 血漿 |
JL-FA-76 | HCV RNA PLASMA Genotype 4 | 基因4型丙肝RNA 血漿 |
JL-FA-77 | HCV RNA PLASMA Genotype 5 | 基因5型丙肝RNA 血漿 |
JL-FA-78 | HCV RNA PLASMA Genotype 6 | 基因6型丙肝RNA 血漿 |
JL-FA-79 | HCV Riba single band | 丙肝免疫印跡單波段 |
JL-FA-80 | HCV RIBA Pos. (multiple bands) | 丙肝免疫印跡陽性多波段 |
JL-FA-81 | HCV Negative | 丙肝陰性 |
JL-FA-82 | HCV RNA Pos (quantitative) | 丙肝RNA陽性(定量) |
JL-FA-83 | Hepatitis E | 戊型肝炎 |
JL-FA-84 | Herpes Simplex Virus (HSV)1/2 Positive Plasma | 單純性皰疹病毒1/2陽性血漿 |
JL-FA-85 | Herpes Simplex Virus (HSV) 1 Negative Plasma | 單純性皰疹病毒1 陰性血漿 |
JL-FA-86 | Herpes Simplex Virus (HSV) 1 IgG | 單純性皰疹病毒1 IGG |
JL-FA-87 | Herpes Simplex Virus (HSV 1) IgM | 單純性皰疹病毒1 IGM |
JL-FA-88 | Herpes Simplex Virus (HSV) 2 IgG | 單純性皰疹病毒2 IGG |
JL-FA-89 | Herpes Simplex Virus (HSV) 2 IgM | 單純性皰疹病毒2 IGG |
JL-FA-90 | Histone | 組蛋白 |
JL-FA-91 | Human Anti Mouse Ab (HAMA) | 人抗鼠抗體 |
JL-FA-92 | Human immunodeficiency virus (HIV) 1 Neg | HIV I 陰性 |
JL-FA-93 | anti Human immunodeficiency virus (HIV) 1 Plasma | 抗HIV I 血漿 |
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 免疫印跡 |
JL-FA-96 | anti Human immunodeficiency virus (HIV) 1/2 2 HIV (+) | 抗HIV 1/2 2 HIV陽性 |
JL-FA-97 | Human immunodeficiency virus (HIV) Ag | HIV抗原 |
JL-FA-98 | HIV RNA (quantitative) Plasma | HIV RNA 定量血漿 |
JL-FA-99 | HIV RNA (quantitative) Serum | HIV RNA 定量血清 |
JL-FA-100 | HIV1 Subtype A | HIV1 亞型A |
JL-FA-101 | HIV1 Subtype B | HIV1 亞型B |
JL-FA-102 | HIV1 Subtype C | HIV1 亞型C |
JL-FA-103 | HIV1 Subtype D | HIV1 亞型D |
JL-FA-104 | HIV1 Subtype E | HIV1 亞型E |
JL-FA-105 | HIV1 Subtype F | HIV1 亞型F |
JL-FA-106 | HIV1 Subtype G | HIV1 亞型G |
JL-FA-107 | HIV1 Subtype H | HIV1 亞型H |
JL-FA-108 | HIV1 Subtype J | HIV1 亞型J |
JL-FA-109 | HIV1 Subtype K | HIV1 亞型K |
JL-FA-110 | HIV1 Group O | HIV1 亞型O |
JL-FA-111 | Human immunodeficiency virus (HIV) 2 Antibody Plasma | HIV 2 抗體血漿 |
JL-FA-112 | Human immunodeficiency virus (HIV) 2 Antibody Serum | HIV 2 抗體血清 |
JL-FA-113 | HPV (Human Papiloma Virus) Negative | 人乳狀瘤病毒HPV陰性 |
JL-FA-114 | HPV (Human Papiloma Virus) Positive | 人乳狀瘤病毒HPV陽性 |
JL-FA-115 | Human immunodeficiency virus (HIV) Antibody HCV Antibody Plasma COINFECTED | HIV 抗體 HCV |
JL-FA-116 | Human T-cell Lymphotropic Virus (HTLV) I/II | 人嗜T淋巴細胞病毒(HTLV) I/II |
JL-FA-117 | Human T-cell Lymphotropic Virus (HTLV) I | 人嗜T淋巴細胞病毒(HTLV) I |
JL-FA-118 | Human T-cell Lymphotropic Virus (HTLV) II | 人嗜T淋巴細胞病毒(HTLV) II |
JL-FA-119 | Jo-1 | 多發性肌炎抗原JO-1 |
JL-FA-120 | IgE < 5,000 Ku/L | IgE < 5,000 Ku/L |
JL-FA-121 | Legionella | 軍團桿菌屬 |
JL-FA-122 | Leptospira | 軍團桿菌屬 |
JL-FA-123 | Lyme Disease | 萊姆(氏)病:蜱傳播的全身性疾病,常在夏季發生 |
JL-FA-124 | Lyme IgG | 萊姆(氏)病 IGG |
JL-FA-125 | Lyme IgM | 萊姆(氏)病 IGM |
JL-FA-126 | Lyme Disease Neg | 萊姆(氏)病 陰性 |
JL-FA-127 | Malaria | 瘧疾 |
JL-FA-128 | Mononucleosis (infectious) | 單核細胞增多癥(有傳染性的) |
JL-FA-129 | Mononucleosis Negative | 單核細胞增多癥陰性 |
JL-FA-130 | Measles Negative | 麻疹 陰性 |
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) | 微粒體抗甲狀腺過氧化物酶抗體 |
JL-FA-134 | Microsomal Anti-thyroid peroxidase antibody (TPO) Negative Plasma | 微粒體抗甲狀腺過氧化物酶抗體 |
JL-FA-135 | Anti-mitochondrial antibody (AMA) | 抗線粒體抗體 |
JL-FA-136 | Multiple Sclerosis | 多發性硬化癥 |
JL-FA-137 | Mumps IgG | 流行性腮腺炎 IGG |
JL-FA-138 | Mumps Ab IgM | 流行性腮腺炎抗體 IGM |
JL-FA-139 | Mumps Antibody Negative Plasma | 流行性腮腺炎抗體陰性血漿 |
JL-FA-140 | Mumps Antibody Negative Serum | 流行性腮腺炎抗體陰性血清 |
JL-FA-141 | Myeloma Plasma | 骨髓瘤血漿 |
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 | 支原體 |
JL-FA-147 | Mycoplasma Negative | 支原體陰性 |
JL-FA-148 | Mycoplasma IgG | 支原體IGG |
JL-FA-149 | Mycoplasma IgM | 支原體IGM |
JL-FA-150 | Mycoplasma PCR | 支原體PCR |
JL-FA-151 | Normal Human Plasma | 正常人血漿 |
JL-FA-152 | Normal Human Serum | 正常人血清 |
JL-FA-153 | Nuclear Antibody Centromere | 核抗體著絲粒 |
JL-FA-154 | Nuclear Antibody, Speckled ANA | 核抗體,斑點抗核抗體 |
JL-FA-155 | Nuclear Antibody, Nucleolar ANA | 核抗體,核仁抗核抗體 |
JL-FA-156 | Nuclear Antibody, Homogeneous ANA | 核抗體,同質抗核抗體 |
JL-FA-157 | Nuclear Antiobody, Speckled. (ANA) Negative | 核抗體,斑點。抗核抗體陰性 |
JL-FA-158 | P-ANCA (associated neutrophil cytoplasmic antibodies) | 相關的嗜中性粒細胞胞漿抗體 |
JL-FA-159 | Parietal Cell Antibody (PCA) | 胃)壁細胞抗體 |
JL-FA-160 | Parvo positive plasma | 細小病毒陽性血漿 |
JL-FA-161 | Parvo IgM | 細小病毒 IGM |
JL-FA-162 | Parvo IgG | 細小病毒 IGG |
JL-FA-163 | Parvo Negative Plasma | 細小病毒陰性血漿 |
JL-FA-164 | Parvo DNA positive | 細小病毒 DNA 陽性 |
JL-FA-165 | Phospholipid Positive Plasma | 磷脂陽性血漿 |
JL-FA-166 | Prothrombin | 凝血酶原,凝血因子 |
JL-FA-167 | Rheumatoid Factor (RF) <1000 IU/mL | 類風濕因子<1000 IU/mL |
JL-FA-168 | Rheumatoid Factor (RF) 1001-2000 IU/mL | 類風濕因子1001-2000 IU/mL |
JL-FA-169 | Rheumatoid Factor (RF) 2001-4000 IU/mL | 類風濕因子 2001-4000 IU/mL |
JL-FA-170 | Rheumatoid Factor (RF) 4001-5000 IU/mL | 類風濕因子 4001-5000 IU/mL |
JL-FA-171 | Rheumatoid Factor (RF) >5000 IU/mL | 類風濕因子>5000 IU/mL |
JL-FA-172 | Ribonucleoprotein (RNP) Positive | 核糖核蛋白陽性 |
JL-FA-173 | Rubella Chimeric | 風疹 |
JL-FA-174 | Rubella Negative | 風疹陰性 |
JL-FA-175 | Rubella IgG | 風疹IGG |
JL-FA-176 | Rubella IgM | 風疹IGM |
JL-FA-177 | Rubeola Negative Plasma | 風疹陰性血漿 |
JL-FA-178 | Rubeola IgG | 風疹IGG |
JL-FA-179 | Scleroderma (Scl-70) Pos | 膠原沉著病,硬皮病,硬皮癥 陽性 |
JL-FA-180 | Scleroderma (Scl-70) Negative | 硬皮病陰性 |
JL-FA-181 | Sickle Cell Fresh Whole Blood | 鐮刀形紅細胞新鮮全血 |
JL-FA-182 | Smith (SM) | 抗Smith抗體陽性血清(SLE的特征性抗體) |
JL-FA-183 | SMITH RNP | 抗RNP抗體陽性血清(SLE的特征性抗體) |
JL-FA-184 | Smooth Muscle (ASMA) | 抗平滑肌抗體陽性血清 |
JL-FA-185 | Sjogren syndrome antigen A (SSA) Positive | 舍格倫綜合征或干燥綜合征抗原A 陽性 |
JL-FA-186 | Sjogren syndrome antigen B (SSB) Positive | 舍格倫綜合征抗原B 陽性 |
JL-FA-187 | Sjogren syndrome antigen B (SSB) Negative | 舍格倫綜合征抗原B陰性 |
JL-FA-188 | Streptolysin O Ab (ASO) | 鏈球菌溶血素O抗體 |
JL-FA-189 | Syphilis (RPR - Rapid Plasma Reagin) Positive Plasma | 梅毒(梅毒-快速血漿反應)陽性血漿 |
JL-FA-190 | Syphilis (RPR - Rapid Plasma Reagin) Negative Plasma | 梅毒(梅毒-快速血漿反應)陰性血漿 |
JL-FA-191 | Syphilis/ATA/T. pallidum IgG | 梅毒ATA/T,蒼白球IGG |
JL-FA-192 | Syphilis/ATA/T. pallidum IgM | 梅毒ATA/T,蒼白球IGM |
JL-FA-193 | Systemic Lupus Erythematosus (SLE) Positive | 全身性紅斑狼瘡陽性 |
JL-FA-194 | Systemic Lupus Erythematosus (SLE) Negative | 全身性紅斑狼瘡陰性 |
JL-FA-195 | TG/TPO Positive (Standard Titer 1,000 - 3000 IU/mL) | 甲狀腺球蛋白/甲狀腺過氧化物酶陽性 |
JL-FA-196 | TG/TPO Negative | 甲狀腺球蛋白/甲狀腺過氧化物酶陰性 |
JL-FA-197 | TTG (Tissue Transglutaminase) | 組織轉谷氨酰胺酶 |
JL-FA-198 | TTG (Tissue Transglutaminase) IgA | 組織轉谷氨酰胺酶 IGA |
JL-FA-199 | ToRCH (Toxo, Rubella, CMV, HSV) Positive | 優生優育(弓形蟲,風疹,巨細胞,單胞)陽性 |
JL-FA-200 | ToRCH (Toxo, Rubella, CMV, HSV) Negative | 優生優育(弓形蟲,風疹,巨細胞,單胞)陰性 |
JL-FA-201 | Toxoplasmosis (Toxo) | 弓形蟲病 |
JL-FA-202 | Toxoplasmosis (Toxo) IgG | 弓形蟲病IGG |
JL-FA-203 | Toxoplasmosis (Toxo) IgM | 弓形蟲病IGM |
JL-FA-204 | Thyroglobulin (TG) Positive Plasma | 甲狀腺球蛋白陽性血漿 |
JL-FA-205 | Thyroglobulin (TG) Negative | 甲狀腺球蛋白陰性 |
JL-FA-206 | Varicella-Zoster Virus (VZV) Negative | 水痘-帶狀皰疹病毒陰性 |
JL-FA-207 | Varicella-Zoster Virus (VZV) IgG | 水痘-帶狀皰疹病毒IGG |
JL-FA-208 | Varicella-Zoster Virus (VZV) IgM | 水痘-帶狀皰疹病毒IGM |
JL-FA-209 | West Nile Virus (WNV) | 西尼羅河腦炎病毒 |
JL-FA-210 | West Nile Virus (WNV) IgM | 西尼羅河腦炎病毒IGM |
美國Seracare
該研究小組發現,兩種不同的B細胞譜系抗體聯手,刺激備受追捧的廣譜中和抗體對抗HIV。該研究組由杜克大學艾滋病毒/艾滋病疫苗免疫學,免疫原發現(CHAVI-ID)中心杜克大學人類疫苗研究所的主任巴頓·海恩斯,以及該疫苗研究中心的國家過敏和傳染病研究所(NIAID)的主任John Mascola醫學博士所的。
海恩斯說,這些可中和多種hiv病毒株的抗體的激活是是一個性疫苗的關鍵策略。高水平的這種抗體在約20%的艾滋病毒感染者中產生。
去年,該研究組在Nature雜志上*描述廣譜中和抗體(bnAbs)的共同進化,以及病毒激活感染者內的這些抗體。現在,同樣的研究小組報告了患者體內的免疫系統的B細胞學會中和許多種HIV病毒株的確切機制。
在這項新研究中,科學家驚訝地發現,一個輔助的中和抗體組和交叉反應中和抗體合作,產生一套強而有力的廣譜中和抗體。其他輔助譜系包含與導致感染的病毒中和的抗體。
這種抗體靶向病毒的外膜區域,該區域也能夠與廣譜中和抗體結合。在這樣做時,輔助譜系抗體選擇具有較強能力的病毒刺激廣譜中和抗體系。
因此,一組抗體選擇一組病毒逃逸突變體“教導”廣譜中和抗體系如何中和HIV變種。科學家推測,這個過程會反復發生在整個感染中,導致中和多種HIV毒株的抗體譜的產生。
“一個bnAb譜系的成熟可以通過輔助譜系來提升的這一發現,對艾滋病疫苗的發展有著重要的影響,”文章*作者、杜克大學人類疫苗研究所Feng Gao博士說。“來自于初始傳播/原始病毒的免疫原的反復免疫,以及逃避變體與bnAb譜系具有更高的結合能力,都可能需要激活bnAbs。”
“下一步是要在能夠產生廣譜中和抗體的其他個體中進行類似的研究,并確定誘導這種抗體的其他特異性是一個普遍的機制,” 海恩斯說。“然后,zui終證明,這一發現可用于設計可誘導廣譜中和抗體的免疫原。”
利用這項研究的結果,該研究模仿自然感染艾滋病毒的光譜中和抗體發展,已經設計出一種疫苗免疫原,有選擇性地觸發產生抗體的B細胞進行合作,產生廣譜中和抗體。
隨著癌癥的發育,正常的血液供給慢慢不能滿足其需求,因此過度生長的腫瘤組織吸收的氧氣量就會比正常組織少,這種低氧環境稱之為缺氧狀態,缺氧狀態往往和不同類型的惡性腫瘤的發生相關。
這項研究中研究人員利用結腸癌組織進行研究發現,缺氧條件可以誘發關鍵的腫瘤抑制基因MLH1發生沉默;與此同時研究人員也發現了一種名為LSD1的酶類,這種酶是一種賴氨酸特殊的脫甲基酶,酶類LSD1連同MLH1都可以作為逆轉或者阻斷沉默過程的靶點;由于LSD1是一種特殊酶類,因此科學家們可以利用小分子對其產生的靶向作用來抑制其活性。
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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.
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