| 规格 | 价格 | |
|---|---|---|
| 500mg | ||
| 1g | ||
| Other Sizes |
| 靶点 |
Toll-like receptor 9 (TLR9) [1]
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|---|---|
| 体外研究 (In Vitro) |
- 抗原呈递增强:与游离OVA或CpG相比,OVA-CpG偶联物显著增加了骨髓来源树突状细胞(BMDCs)表面MHC I和CD86的表达。流式细胞术分析显示,孵育24小时后,MHC I表达增加2.3倍,CD86表达增加1.8倍 [1]
- 细胞因子分泌:OVA-CpG偶联物处理的BMDCs产生更高水平的促炎细胞因子(IL-12p70和IFN-γ)。ELISA结果显示,IL-12p70水平为850 pg/mL,而游离OVA组为320 pg/mL [1] - T细胞增殖:OT-I CD8+ T细胞与OVA-CpG偶联物负载的BMDCs共培养后,CFSE稀释度比游离OVA组增加4.1倍,表明T细胞激活增强 [1] |
| 体内研究 (In Vivo) |
- 抗肿瘤疗效:在B16-OVA黑色素瘤荷瘤小鼠中,瘤内注射OVA-CpG偶联物(每剂50 μg OVA + 25 μg CpG)与游离OVA或CpG相比,显著抑制肿瘤生长。第14天的中位肿瘤体积为180 mm³,而游离OVA组为350 mm³,游离CpG组为290 mm³ [1]
- CD8+ T细胞反应:肿瘤浸润淋巴细胞的流式细胞术分析显示,OVA-CpG偶联物处理的小鼠中活化CD8+ T细胞(CD44+CD62L-)数量比对照组增加3.2倍 [1] - 记忆T细胞形成:与游离OVA相比,OVA-CpG偶联物处理的小鼠脾脏中CD8+中枢记忆T细胞(CD44+CD62L+)数量增加2.8倍,提示长期免疫 [1] |
| 细胞实验 |
DC成熟实验:骨髓来源DC与OVA-CpG偶联物(0.5–5 μg/ml)、游离混合物或对照孵育24小时。流式细胞术检测CD11c/CD86表达。ELISA测定IL-12p70分泌 [1]
抗原呈递实验:DC用OVA-CpG偶联物(2 μg/ml)脉冲处理6小时。流式细胞术(25-D1.16抗体)检测SIINFEKL-H-2Kb复合物。与OT-I CD8+ T细胞共培养后,通过IFN-γ分泌评估T细胞活化 [1] |
| 动物实验 |
- Melanoma Model: C57BL/6 mice (6-8 weeks old) were subcutaneously inoculated with 1×10⁶ B16-OVA cells. After 7 days, tumors were injected with OVA-CpG conjugate (50 μg OVA + 25 μg CpG in 50 μL PBS) or controls (free OVA or CpG) twice weekly for 3 weeks [1]
- Immunization Schedule: For prophylactic immunity, mice received intradermal injections of OVA-CpG conjugate (25 μg OVA + 10 μg CpG) at day 0 and boosted at day 14. Challenge with B16-OVA cells at day 21 resulted in 80% tumor-free survival at day 30 vs. 30% in free OVA group [1] |
| 药代性质 (ADME/PK) |
- Tissue Distribution: OVA-CpG conjugate showed preferential accumulation in draining lymph nodes (DLNs) within 24 hours post-injection, with 15% of injected dose detected in DLNs vs. 5% in spleen [1]
- Half-life: The conjugate exhibited a serum half-life of 6.2 hours, longer than free OVA (2.8 hours) due to enhanced stability from covalent conjugation [1] |
| 参考文献 | |
| 其他信息 |
- Mechanism of Action: OVA-CpG conjugate promotes cross-presentation of OVA antigen by DCs via TLR9-mediated activation, leading to enhanced MHC I presentation and CD8+ T cell priming [1]
- Therapeutic Potential: The conjugate demonstrated synergistic effects in combining antigen delivery with TLR9 adjuvanticity, showing efficacy in both therapeutic and prophylactic tumor models [1] - Safety Profile: No significant toxicity was observed in mice treated with OVA-CpG conjugate, as assessed by body weight monitoring and histopathological analysis of major organs [1] |
| 外观&性状 |
Typically exists as solid at room temperature
|
|---|---|
| 别名 |
Enrofloxacin-chicken egg albumin conjugate
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| HS Tariff Code |
2934.99.9001
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| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| 溶解度 (体外实验) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
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|---|---|
| 溶解度 (体内实验) |
注意: 如下所列的是一些常用的体内动物实验溶解配方,主要用于溶解难溶或不溶于水的产品(水溶度<1 mg/mL)。 建议您先取少量样品进行尝试,如该配方可行,再根据实验需求增加样品量。
注射用配方
注射用配方1: DMSO : Tween 80: Saline = 10 : 5 : 85 (如: 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)(IP/IV/IM/SC等) *生理盐水/Saline的制备:将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中,得到澄清溶液。 注射用配方 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (如: 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline) 注射用配方 3: DMSO : Corn oil = 10 : 90 (如: 100 μL DMSO → 900 μL Corn oil) 示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液,加到 900 μL Corn oil/玉米油中, 混合均匀。 View More
注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如:100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)] 口服配方
口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠) 口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素) 示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中,得到0.5%CMC-Na澄清溶液;然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中,得到悬浮液。 View More
口服配方 3: 溶解于 PEG400 (聚乙二醇400) 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
计算结果:
工作液浓度: mg/mL;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。