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    當(dāng)前位置:首頁 > 技術(shù)文章 > 澳大利亞Biosensis公司Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元介紹

    澳大利亞Biosensis公司Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元介紹

    更新時(shí)間:2025-10-15      點(diǎn)擊次數(shù):732

     一、基礎(chǔ)信息  

    貨號(hào):TR-150-FJB  

    英文名:Fluoro-Jade B (FJB) Powder for Identifying Degenerating Neurons  

    中文名:Fluoro-Jade B (FJB) 粉末用于識(shí)別退化神經(jīng)元

    規(guī)格:30 mg(干粉形式)  

    品牌:Biosensis

    分子式:C26H16O7  

    分子量:448.4  

    激發(fā)波長:495 nm  

    發(fā)射波長:521 nm  

    純度檢測:HPLC ≥95%  

    熒光量子產(chǎn)率:0.85(相對熒光素)  

    溶解性:易溶于水(pH 3.0-5.0)  

    替代性說明:該產(chǎn)品為Merck-Millipore已停產(chǎn)產(chǎn)品AG310的替代品,性能與原產(chǎn)品高度一致。  

    5fadb438a2a81d94f42314d4cf5317ac_fjb_image_2014_gao_f_1.png

     二、產(chǎn)品原理  

    Fluoro-Jade B(FJB)是一種基于陰離子熒光素衍生物的神經(jīng)組織學(xué)染色試劑,其核心原理是通過特異性結(jié)合退化神經(jīng)元的脂質(zhì)膜成分(如磷脂酰乙醇胺)實(shí)現(xiàn)熒光標(biāo)記。具體機(jī)制包括:  

    1. 靶向退化神經(jīng)元:  

       - 在神經(jīng)元變性過程中,細(xì)胞膜結(jié)構(gòu)破壞導(dǎo)致脂質(zhì)代謝產(chǎn)物(如磷脂酰乙醇胺)暴露,F(xiàn)JB通過靜電作用與這些成分結(jié)合。  

       - 與正常神經(jīng)元相比,退化神經(jīng)元的膜電位改變進(jìn)一步增強(qiáng)了FJB的滲透性和結(jié)合效率。  

    2. 熒光信號(hào)觸發(fā):  

       - FJB的最大激發(fā)波長為495 nm(藍(lán)光),發(fā)射波長為521 nm(綠色),可通過熒光顯微鏡或共聚焦顯微鏡觀察。  

       - 染色后神經(jīng)元呈現(xiàn)明亮的綠色熒光,背景干擾極低,適用于高分辨率成像。  

    3. 抗干擾性:  

       - FJB無需金屬沉積步驟(如傳統(tǒng)鍍銀染色),避免了金屬離子背景干擾。  

       - 對組織固定方式(甲醛、戊二醛等)和切片類型(冷凍、石蠟包埋)兼容性更強(qiáng)。  


     三、解決的核心實(shí)驗(yàn)問題  

    1. 傳統(tǒng)技術(shù)的局限性:  

       - 鍍銀染色法:需多步金屬還原反應(yīng),耗時(shí)長達(dá)24小時(shí)以上,且成本高昂,難以實(shí)現(xiàn)多重標(biāo)記。  

       - 免疫組化標(biāo)記:依賴特異性抗體,僅能識(shí)別特定病理標(biāo)志物(如Tau蛋白),無法全面反映神經(jīng)元退化的整體情況。  

    2. 神經(jīng)退行性疾病研究的痛點(diǎn):  

       - 早期病變檢測:FJB可標(biāo)記尚未出現(xiàn)明顯形態(tài)學(xué)改變的早期退化神經(jīng)元,為阿爾茨海默病、帕金森病等疾病的機(jī)制研究提供敏感工具。  

       - 多模型適用性:支持體外培養(yǎng)神經(jīng)元(如原代皮層神經(jīng)元)和體內(nèi)模型(如大鼠海馬區(qū)損傷模型)的退化評(píng)估。  

    3. 膠質(zhì)細(xì)胞標(biāo)記需求:  

       - FJB不僅能標(biāo)記神經(jīng)元,還可特異性結(jié)合反應(yīng)性星形膠質(zhì)細(xì)胞,為神經(jīng)炎癥研究提供新視角。  


     四、產(chǎn)品優(yōu)勢  

    1. 高靈敏度與特異性:  

       - 檢測靈敏度可達(dá)單細(xì)胞水平,信噪比優(yōu)于傳統(tǒng)染色方法。  

       - 雖純度略低于FJC(Biosensis另一產(chǎn)品),但成本僅為FJC的1/3,適合大規(guī)模實(shí)驗(yàn)。  

    2. 實(shí)驗(yàn)兼容性廣泛:  

       - 樣本類型:支持冷凍切片、石蠟切片、培養(yǎng)細(xì)胞及灌注固定的組織樣本。  

       - 聯(lián)合染色:可與DAPI(細(xì)胞核標(biāo)記)、GFAP(星形膠質(zhì)細(xì)胞標(biāo)記)或免疫熒光抗體(如Iba-1標(biāo)記小膠質(zhì)細(xì)胞)聯(lián)用,實(shí)現(xiàn)多維度病理分析。  

    3. 操作便捷性:  

       - 染色流程僅需3步:組織透化→FJB染色→封片,全程耗時(shí)約1小時(shí)。  

       - 工作液穩(wěn)定性高,現(xiàn)配現(xiàn)用,避免儲(chǔ)存降解風(fēng)險(xiǎn)。  

    4. 經(jīng)濟(jì)性與可持續(xù)性:  

       - 單批次30 mg粉末可滿足數(shù)百次染色需求(每次使用約1 μg),顯著降低長期實(shí)驗(yàn)成本。  

       - 干粉形式減少運(yùn)輸和儲(chǔ)存中的污染風(fēng)險(xiǎn),符合實(shí)驗(yàn)室綠色化趨勢。  


     五、客戶群體  

    1. 神經(jīng)科學(xué)研究機(jī)構(gòu):  

       - 專注于阿爾茨海默病、帕金森病、肌側(cè)索硬化癥(ALS)等神經(jīng)退行性疾病的實(shí)驗(yàn)室。  

       - 從事神經(jīng)發(fā)育、神經(jīng)代謝及神經(jīng)免疫學(xué)研究的團(tuán)隊(duì)。  

    2. 藥企與CRO公司:  

       - 需評(píng)估藥物對神經(jīng)元保護(hù)作用的藥理部門(如抗癲癇藥物、神經(jīng)保護(hù)劑開發(fā))。  

       - 提供神經(jīng)毒性評(píng)價(jià)服務(wù)的合同研究組織(CRO)。  

    3. 教學(xué)與臨床轉(zhuǎn)化平臺(tái):  

       - 醫(yī)學(xué)院校的神經(jīng)生物學(xué)教學(xué)實(shí)驗(yàn)室,用于本科生/研究生實(shí)驗(yàn)教學(xué)。  

       - 醫(yī)院病理科開展神經(jīng)退行性疾病診斷輔助研究。  


     六、訂貨信息  

    1. 購買渠道:  

       - 中國區(qū)代理:上海起發(fā)

    2. 儲(chǔ)存與使用注意事項(xiàng):  

       - 干粉儲(chǔ)存:避光保存于-20℃,避免吸潮;已溶解的0.01%原液建議4℃短期儲(chǔ)存(不超過3個(gè)月)。  

       - 質(zhì)量控制:每批次提供質(zhì)檢報(bào)告(包括純度檢測、熒光穩(wěn)定性測試)。  

     八、常見問題解答(FAQ)  

    1. Q:FJB能否用于活細(xì)胞染色?  

    A:FJB需通過固定透化處理進(jìn)入細(xì)胞,活細(xì)胞染色需特殊協(xié)議,建議優(yōu)先使用終濃度≤1 μM的預(yù)處理方案。  

    2. Q:與Nissl染色相比有何優(yōu)勢?  

    A:Nissl染色反映細(xì)胞活性,而FJB特異性標(biāo)記退化神經(jīng)元,二者聯(lián)用可區(qū)分壞死與凋亡。  

    3. Q:如何避免染色背景過高?  

    A:優(yōu)化透化時(shí)間(推薦10-15分鐘),避免過度消化;使用0.1% Triton X-100作為透化劑。  


    九、總結(jié)  

    Fluoro-Jade B(TR-150-FJB)作為神經(jīng)退行性研究的核心工具,憑借其高靈敏度、實(shí)驗(yàn)靈活性和經(jīng)濟(jì)性,已成為全球3000余家實(shí)驗(yàn)室的優(yōu)秀試劑。Biosensis公司通過持續(xù)優(yōu)化生產(chǎn)工藝,確保產(chǎn)品性能穩(wěn)定,而艾美捷科技憑借本土化服務(wù)網(wǎng)絡(luò),為中國科研用戶提供從產(chǎn)品供應(yīng)到技術(shù)支持的完整解決方案。無論是基礎(chǔ)研究還是藥物開發(fā),F(xiàn)JB都為揭示神經(jīng)元退化的分子機(jī)制提供了不可替代的技術(shù)支撐。


    關(guān)鍵詞:Biosensis、Biosensis神經(jīng)科學(xué)抗體、Biosensis ELISA試劑盒、Biosensis組織染色試劑盒、Biosensis神經(jīng)營養(yǎng)因子抗體、Biosensis退化神經(jīng)元染色、Biosensis淀粉樣斑塊染色、Biosensis帕金森病研究抗體、Biosensis阿爾茨海默病研究試劑、Biosensis PDGF-AB ELISA試劑盒、Biosensis寡聚淀粉樣βELISA試劑盒、Biosensis神經(jīng)絲輕鏈抗體、Biosensis膠質(zhì)細(xì)胞源性神經(jīng)營養(yǎng)因子抗體、Biosensis腦源性神經(jīng)營養(yǎng)因子ELISA、Biosensis神經(jīng)生長因子受體ELISA、Biosensis離子鈣結(jié)合接頭分子1抗體、Biosensis雙皮質(zhì)素抗體、Biosensis帕金森病蛋白7抗體、Biosensis成熟NGF ELISA、Biosensis原NGF ELISA、Biosensis神經(jīng)退行性疾病抗體、Biosensis自噬研究抗體、Biosensis代謝應(yīng)激障礙試劑、Biosensis神經(jīng)免疫學(xué)試劑、Biosensis炎癥研究抗體、Biosensis中國代理、Biosensis神經(jīng)科學(xué)產(chǎn)品線、Biosensis抗體應(yīng)用WB/ICC/IHC


    更多產(chǎn)品信息,請聯(lián)系中國區(qū)域代理商:上海起發(fā)實(shí)驗(yàn)試劑有限公司

    如果您對任意產(chǎn)品或其他品牌感興趣,可通過“在線留言"功能留下您的需求

    (注:本文內(nèi)容基于品牌公開資料及行業(yè)常規(guī)信息整理,具體以品牌信息文檔為準(zhǔn)。)


    ??Biosensis熱賣產(chǎn)品

    貨號(hào)

    品名

    規(guī)格

    品牌

    TR-100-FJT

    Fluoro-Jade C (FJC) Ready-to-Dilute Staining Kit for identifying Degenerating Neurons (Trial size)

    20mL

    Biosensis

    TR-100-FJ

    Fluoro-Jade C (FJC) Ready-to-Dilute Staining Kit for identifying Degenerating Neurons

    40mL

    Biosensis

    TR-150-FJB

    Fluoro-Jade B (FJB) Powder for identifying Degenerating Neurons

    30mg

    Biosensis

    TR-100-BG

    Black-Gold II Myelin Ready-to-Dilute Staining Kit with Toluidine Blue O Counter Stain for identifyin

    10mL

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    Amylo-Glo RTD Amyloid Plaque Stain Reagent

    5mL

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    BEK-2211-1P

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    1PlateKit

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    BEK-2215-1P

    Oligomeric Amyloid-beta, Human, Rat, ELISA assay

    1PlateKit

    Biosensis

    BEK-2244-1P

    Bovine A2 Beta Casein ELISA Kit (1 plate)

    1PlateKit

    Biosensis

    BEK-2233-2P

    LR3IGF-I Rapid ELISA Kit: Human

    2PlateKit

    Biosensis

    PE-1832-20

    Casein, bovine beta A2, Purified Native Protein-20 µg

    20ug

    Biosensis

    TR-160-FJC

    Fluoro-Jade C (FJC) Powder for identifying Degenerating Neurons-30 mg

    30mg

    Biosensis

    PE-1831-20

    Casein, bovine beta A1, Purified Native Protein-20 µg

    20ug

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    BEK-2215-2P

    Oligomeric Amyloid-beta, Human, Rat, ELISA assay

    2PlateKit

    Biosensis

    BEK-2233-1P

    LR3IGF-I, Human, Rapid? ELISA assay-1 Plate Kit

    1PlateKit

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    C-1780-100

    Chicken antibody to bovine A2 beta casein protein: Affinity purified

    100uL

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    PE-1750-1000

    Oligomeric Human beta-Amyloid Abeta1-42 Peptide, Stabilized

    2x500ng

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    Brain-derived neurotrophic factor, pro- (proBDNF), Human, Mouse, Rat, Rapid™ ELISA assay-1 Plate Kit

    1 Plate Kit

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    R-107-100

    Myelin basic protein (MBP), Rabbit Polyclonal Antibody-100 µL

    100uL

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    A1 Beta casein (A1), Bovine, ELISA assay-1 Plate Kit

    1PlateKit

    Biosensis

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    Mouse monoclonal antibody to human NGFR/p75NTR [8J2]: IgG

    100ug

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    proBDNF Rapid ELISA Kit: Human, Mouse, Rat (1 Plate)

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    1PlateKit

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    100ug

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    25ug

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    500ug

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    5mL

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    TR-602-Mito

    LipoFluor-MR™ Ready-to-Dilute™, Mitochondria Tracing Reagent

    4vialsx5.5uLpervial

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    5PlateKit

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    BEK-2105-2P

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    BEK-2211-2P

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    2PlateKit

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    BEK-2212-1P

    Nerve growth factor (Beta-NGF), Human, Rapid™ ELISA assay-1 Plate Kit

    1PlateKit

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    BEK-2212-2P

    Nerve growth factor (Beta-NGF), Human, Rapid™ ELISA assay-2 Plate Kit

    2PlateKit

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    BEK-2213-1P

    NGF Rapid ELISA Kit: Mouse (1 Plate)

    1PlateKit

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    BEK-2227-SET

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    4x6StripsSet

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    BEK-2232-SET

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    4x6StripsSet

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    BEK-2239-1P

    NGFR/p75ECD Rapid ELISA Kit: Human (1 Plate)

    1PlateKit

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    BEK-2239-2P

    NGFR/p75ECD Rapid ELISA Kit: Human (2 Plates)

    2PlateKit

    Biosensis

    BEK-2240-SET

    Mature BDNF/proBDNF Combo (BEK-2211/2217), Human, Mouse, Rat, Rapid™ ELISA assay-2 x 1 Plate Set

    2x1PlateSet

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    BEK-2241-SET

    Mature BDNF/proBDNF Combo (BEK-2211/2237), Human, Mouse, Rat, Rapid™ ELISA assay-2 x 1 Plate Set

    2x1PlateSet

    Biosensis

    BEK-2244-10P

    A2 Beta casein (A2), Bovine, ELISA assay

    10PlateKit

    Biosensis

    BEK-2244-2P

    A2 Beta casein (A2), Bovine, ELISA assay

    2PlateKit

    Biosensis

    G-1909-100

    Goat antibody to Prominin-1 (PROM1, CD133, 310-322): Affinity purified

    100ug

    Biosensis

    BL-002-1250

    Heterophilic antibody blocker for ELISA assays utilizing mouse assay antibodies-1250 µg

    1250ug

    Biosensis

    BL-004-500

    Heterophilic antibody blocker for BEK-2217, BEK-2221, BEK-2237 & BEK-2240 and similar ELISA assays-500 µg

    500ug

    Biosensis

    BSS-M-1650-100

    Mouse monoclonal antibody to Growth Associated Protein 43 (GAP43)

    100ug

    Biosensis

    BSS-R-118-100

    Rabbit antibody to Tyrosine Hydroxylase (TH): whole serum

    100uL

    Biosensis

    C-1373-50

    Chicken polyclonal antibody to Glial Fibrillary Acidic Protein (GFAP)

    50uL

    Biosensis

    C-1382-50

    Microtubule-associated protein 2 (MAP2), Chicken Polyclonal Antibody-50 µL

    50uL

    Biosensis

    BEK-2105-1P

    Urokinase-typeplasminogen activator(uPA), Human, ELISAassay

    EA

    Biosensis

    C-1781-100

    Casein, A1 beta, Chicken Polyclonal Antibody-100 µL

    100uL

    Biosensis

    C-2126-100

    Tyrosine Hydroxylase (TH), Chicken Polyclonal Antibody-100 µg

    100ug

    Biosensis

    G-185-100

    Nerve growth factor (Beta-NGF), Goat Polyclonal Antibody-100 µL

    100uL

    Biosensis

    G-1900-100

    Intermediate conductance calcium-activated potassium channel protein 4 (KCNN4), Goat Polyclonal Antibody

    100ug

    Biosensis

    BEK-2228-SET

    Mature NGF/proNGF Combo (BEK-2214/2236), Rat, Rapid™ ELISA assay-2 x 1 Plate Set

    2x1PlateSet

    Biosensis


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