1. Anti-infection Metabolic Enzyme/Protease Protein Tyrosine Kinase/RTK Autophagy Apoptosis MAPK/ERK Pathway PI3K/Akt/mTOR
  2. Antibiotic Bacterial HIF/HIF Prolyl-Hydroxylase VEGFR Autophagy Apoptosis Beclin1 JNK Akt MMP
  3. Chloramphenicol

Chloramphenicol  (Synonyms: 氯霉素)

目录号: HY-B0239 纯度: 99.82%
COA 产品使用指南

Chloramphenicol 是一种口服有效的广谱抗生素 (antibiotic)。Chloramphenicol 具有抗菌 (antibacterial) 活性。Chloramphenicol 抑制缺氧 A549 和 H1299 细胞中氧不稳定转录因子和缺氧诱导因子-1α (HIF-1α)。Chloramphenicol 可抑制血管内皮生长因子 (VEGF) 和葡萄糖转运蛋白 1 (glucose transporter 1) 的 mRNA 水平,最终降低 VEGF 的释放。Chloramphenicol 可用于厌氧菌感染和肺癌研究。

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Chloramphenicol Chemical Structure

Chloramphenicol Chemical Structure

CAS No. : 56-75-7

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Other Forms of Chloramphenicol:

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Chloramphenicol is an orally active, potent and broad-spectrum antibiotic. Chloramphenicol shows antibacterial activity. Chloramphenicol represses the oxygen-labile transcription factor and hypoxia inducible factor-1 alpha (HIF-1α) in hypoxic A549 and H1299 cells. Chloramphenicol suppresses the mRNA levels of vascular endothelial growth factor (VEGF) and glucose transporter 1, eventually decreasing VEGF release. Chloramphenicol can be used for anaerobic infections and lung cancer research[1][2][3].

IC50 & Target

JNK

 

MMP13

 

体外研究
(In Vitro)

Chloramphenicol (1-100 μg/mL, 18-24 h) inhibits the HIF-1α pathway in NSCLC cells in a concentration-dependent manner[1].
Chloramphenicol (100 μg/mL, 0-24 h) induces autophagy in NSCLC cells, substantially increases the levels of autophagic biomarkers (beclin-1, Atg12-Atg5 conjugates, and LC3-II)[1].
Chloramphenicol induces abnormal differentiation and inhibits apoptosis in activated T cells[2].
Chloramphenicol can inhibit both bacterial and mitochondrial protein synthesis, causing mitochondrial stress and decreased ATP biosynthesis[3].
chloramphenicol (1-100 μg/mL) can induce matrix metalloproteinase (MMP)-13 expression and increase MMP-13 protein[3].
chloramphenicol (1-100 μg/mL) can activate c-Jun N-terminal kinases (JNK) and phosphatidylinositol 3-kinase (PI-3K)/Akt signaling, leading to c-Jun protein phosphorylation[3].
Chloramphenicol acts primarily on the 50S subunit of bacterial 70S rihosomes and inhibits peptide bond formation by suppressing peptidyl transferase activity[5].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[1]

Cell Line: A549 and H1299 cells
Concentration: 0, 1, 10, 100 μg/mL
Incubation Time: 3 h and 24 h
Result: In the 3-h-treated group, the viability of A549 and H1299 cells at 100 μg/mL concentration was 97.0 ± 3.9% and 98.1 ± 5.0%, respectively. The viability of A549 cells was 102.9 ± 1.3% and 99.2 ± 0.9%, whereas the viability of H1299 cells was 103.3 ± 1.9% and 93.8 ± 4.5%, under hypoxia and treatment with CoCl2, respectively.

Western Blot Analysis[1]

Cell Line: A549 and H1299 cells
Concentration: 0, 1, 10, 50, 100 μg/mL
Incubation Time: 18-24 h
Result: Inhibited HIF-1α protein accumulation in NSCLC cells in a concentration-dependent manner, while the expression levels of ARNT remained unaltered. Had no effect on CoCl2 (250 μM, 3 h treatment)-mediated HIF-1α protein accumulation and SENP-1 protein reduction.

Western Blot Analysis[1]

Cell Line: A549 and H1299 cells
Concentration: 100 μg/mL
Incubation Time: 0, 6, 12, 24 h
Result: Induced autophagy in NSCLC cells in a time-dependent manner. Upregulats the expression of beclin-1 and increased the levels of Atg12-Atg5 conjugates in both NSCLC cell lines, both in a time dependent and concentration-dependent manner. Augmented LC3-II and downregulated p62/STSQM1 in A549 cells. Induced an augmentation of p62/STSQM1, and a decrease in LC3-II levels in H1299 cells.
体内研究
(In Vivo)

Chloramphenicol (0-3500 mg/kg, Gavage, daily, for 5 days) decreases erythrocytes and erythrocyte precursors and reduces marrow erythroid cells were at day 1 post-dosing, and returns to normal by 14 days post-dosing[4].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Female B6C3F1 mice (12-14 weeks old)[4]
Dosage: 0, 2500 and 3500 mg/kg
Administration: Gavage, daily, for 5 days
Result: Cessation of erythropoiesis was evident at day 1 post-dosing. A recovery was seen at day 7 post-dosing at the 2500 mg/kg dose level and at between 7 and 14 days at the 3500 mg/kg dose level. Myelotoxicity was most pronounced in the erythroid series at each dose level. Depressed femoral marrow BFU-E and CFU-E at day 1 post-dosing. All the blood and marrow parameters in the present study returned to normal by 14 days post-dosing.
分子量

323.13

Formula

C11H12Cl2N2O5

CAS 号
性状

固体

颜色

White to off-white

中文名称

氯霉素

结构分类
初始来源
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years

*该产品在溶液状态不稳定,建议您现用现配,即刻使用。

溶解性数据
In Vitro: 

DMSO 中的溶解度 : ≥ 150 mg/mL (464.21 mM; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

Ethanol 中的溶解度 : 100 mg/mL (309.47 mM; 超声助溶)

H2O 中的溶解度 : 3.06 mg/mL (9.47 mM; 超声助溶)

* "≥" means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.0947 mL 15.4736 mL 30.9473 mL
5 mM 0.6189 mL 3.0947 mL 6.1895 mL
查看完整储备液配制表

* 请根据产品在不同溶剂中的溶解度,选择合适的溶剂配制储备液;该产品在溶液状态不稳定,建议您现用现配,即刻使用。

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

In Vivo:

请根据您的 实验动物和给药方式 选择适当的溶解方案。

以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:
——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用
以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 方案 一

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (7.74 mM); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入 50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL

    生理盐水的配制:将 0.9 g 氯化钠,溶解于 ddH₂O 并定容至 100 mL,可以得到澄清透明的生理盐水溶液。
  • 方案 二

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 2.5 mg/mL (7.74 mM); 澄清溶液

    此方案可获得 ≥ 2.5 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液 中,混合均匀。

    20% SBE-β-CD in Saline 的配制(4°C,储存一周):2 g SBE-β-CD(磺丁基醚 β-环糊精)粉末定容于 10 mL 的生理盐水中,完全溶解至澄清透明。

以下溶解方案,请直接配置工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

  • 方案 一

    请依序添加每种溶剂: PBS

    Solubility: 2.5 mg/mL (7.74 mM); 澄清溶液; 超声助溶

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
请输入您的动物体内配方组成:
%
DMSO +
+
%
Tween-80 +
%
Saline
如果您的动物是免疫缺陷鼠或者体弱鼠,建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
方案所需 助溶剂 包括:DMSO ,均可在 MCE 网站选购。 Tween 80,均可在 MCE 网站选购。
计算结果
工作液所需浓度 : mg/mL
储备液配制方法 : mg 药物溶于 μL  DMSO(母液浓度为 mg/mL)。

*该产品在溶液状态不稳定,建议您现用现配,即刻使用。

您所需的储备液浓度超过该产品的实测溶解度,以下方案仅供参考,如有需要,请与 MCE 中国技术支持联系。
动物实验体内工作液的配制方法 : 取 μL DMSO 储备液,加入 μL  μL ,混合均匀至澄清,再加 μL Tween 80,混合均匀至澄清,再加 μL 生理盐水
连续给药周期超过半月以上,请谨慎选择该方案。
请确保第一步储备液溶解至澄清状态,从左到右依次添加助溶剂。您可采用超声加热 (超声清洗仪,建议频次 20-40 kHz),涡旋吹打等方式辅助溶解。
纯度 & 产品资料

纯度: 99.82%

参考文献

完整储备液配制表

* 请根据产品在不同溶剂中的溶解度,选择合适的溶剂配制储备液;该产品在溶液状态不稳定,建议您现用现配,即刻使用。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
H2O / Ethanol / DMSO 1 mM 3.0947 mL 15.4736 mL 30.9473 mL 77.3682 mL
5 mM 0.6189 mL 3.0947 mL 6.1895 mL 15.4736 mL
Ethanol / DMSO 10 mM 0.3095 mL 1.5474 mL 3.0947 mL 7.7368 mL
15 mM 0.2063 mL 1.0316 mL 2.0632 mL 5.1579 mL
20 mM 0.1547 mL 0.7737 mL 1.5474 mL 3.8684 mL
25 mM 0.1238 mL 0.6189 mL 1.2379 mL 3.0947 mL
30 mM 0.1032 mL 0.5158 mL 1.0316 mL 2.5789 mL
40 mM 0.0774 mL 0.3868 mL 0.7737 mL 1.9342 mL
50 mM 0.0619 mL 0.3095 mL 0.6189 mL 1.5474 mL
60 mM 0.0516 mL 0.2579 mL 0.5158 mL 1.2895 mL
80 mM 0.0387 mL 0.1934 mL 0.3868 mL 0.9671 mL
100 mM 0.0309 mL 0.1547 mL 0.3095 mL 0.7737 mL

* 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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