PRIMA-1 (NSC-281668) is a mutant p53 reactivator, restores the sensitivity of TP53 mutant-type thyroid cancer cells to the histone methylation inhibitor 3-Deazaneplanocin A.

p53^[1]

The cell lines are cultured in the presence of PRIMA-1 (NSC-281668) at 0-140 μM. The IC₅₀s are 35, 40, 50, 50, 60, 70 and 75 μM for PANC-1, HEC-1-B, SUM149, AN 3CA, Ishikawa, Panc02 and MDA-MB-231 cells, respectively^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

PRIMA-1 (Prima-1) is a p53-modulating agent. 150 or 300 ppm PRIMA-1 significantly suppresses (P<0.0001) lung adenocarcinoma formation by 56% and 62%, respectively, after 17 weeks and 39% and 56%, respectively, after 34 weeks. Administration of 150 or 300 ppm PRIMA-1 significantly suppresses NNK-induced total lung adenocarcinoma formation by 57% or 62% (P<0.0001), respectively, after 17 weeks of exposure and by 39% or 56% (P<0.0001), respectively, after 34 weeks of exposure. As with administration of the lower (50 ppm) dose of CP-31398, administration of the lower (150 ppm) dose of PRIMA-1also slightly increases the number of NNK-induced lung adenomas^[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

185.22

C₉H₁₅NO₃

5608-24-2

Room temperature in continental US; may vary elsewhere.

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

In Vitro: 

H₂O : 100 mg/mL (539.90 mM; Need ultrasonic)

DMSO : 50 mg/mL (269.95 mM; Need ultrasonic)

*

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；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

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

• 1.

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

  Solubility: ≥ 2.5 mg/mL (13.50 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (13.50 mM，饱和度未知) 的澄清溶液。

  以 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；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

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

  Solubility: ≥ 2.5 mg/mL (13.50 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (13.50 mM，饱和度未知) 的澄清溶液。

  以 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。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (13.50 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (13.50 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 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玉米油中，混合均匀。

• [1]. Cui B, et al. PRIMA-1, a mutant p53 reactivator, restores the sensitivity of TP53 mutant-type thyroid cancer cells to the histone methylation inhibitor 3-Deazaneplanocin A. J Clin Endocrinol Metab. 2014 Jun;99(6):E962-70.

  [2]. Zhang Z, et al. Targeting cancer stem cells with p53 modulators. Oncotarget. 2016 Apr 8.

  [3]. Rao CV, et al. Chemopreventive effects of the p53-modulating agents CP-31398 and Prima-1 in tobacco carcinogen-induced lung tumorigenesis in A/J mice. Neoplasia. 2013 Sep;15(9):1018-27.

A cell viability assay using yellow tetrazolium salt3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide or MTT is utilized to assess the effects of the p53 SMWC on growth of human carcinoma cell lines. Cells are plated in triplicate in 96-well plates at a density of 2.5×10³ cells/well in 100 μL of complete medium. After 24hr incubation in a humidified 5% atmosphere at 37°C, the cells are treated with increasing concentrations of SMWC for an additional 24 hr period and analyzed for cell growth using the MTT assay. Stock solutions (10 mM) of CP-31398 and PRIMA-1 in PBS are diluted in PBS immediately prior to use. The assay is performed as follows: a 12 mM MTT stock solution is prepared by adding 1 mL of sterile PBS to 5 mg MTT and mixing by vortex or sonication until dissolved. Once prepared, the MTT solution is stored for four weeks at 4°C protected from light.A 500 mL SDS-HCl solution consisting of 0.01 M HCl, 10% propanol and 5 gm SDS is prepared by mixing the solution gently by inversion until the SDS dissolved.100 μL of cell culture medium is removed from each well and 10 μL of the 12 mM MTT stock solution added. A negative control consisting of 10 μL of the MTT stock solution added to 100 μL of medium is prepared. The plates are incubated at 37°C for 4hr followed by the addition of 100 μL of the SDS-HCl solution to each well and mixing thoroughly using a pipette. The absorbance of each sample is read at 570 nm in an ELISA plate reader. The inhibitory concentration (IC₄₀) doses are determined using standard procedure^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Mice^[3]
Female A/J mice at 6 weeks of age are used. At 6 weeks of age, mice are fed control irradiated AIN-76A modified diet. At 7 weeks of age, the mice intended for carcinogen treatment receive a single dose of 10 mol (2.07 mg) NNK/mouse by intraperitoneal injection. All mice are weighed once every 2 weeks until termination of the study. Three weeks after NNK treatment, groups of mice (25 mice/group) are fed control AIN-76A or experimental diets containing 50 or 100 ppm CP-31398 or 150 or 300 ppm PRIMA-1 until termination. Mice are killed by CO₂ asphyxiation followed by cervical dislocation after 17 weeks (10 mice/group) or 34 weeks (15 mice/group) of exposure to test agents. At the time of sacrifice, lungs are lavaged, perfused, and fixed in phosphate-buffered formalin, transferred within 2 days to 70% alcohol, and evaluated under a dissecting microscope for the number of tumors and tumor size. Tumors on the lung surface are enumerated by at least two experienced readers, blinded to sample identifiers, using a dissecting microscope. Tumor diameters are measured using Fisher brand digital calipers.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Cui B, et al. PRIMA-1, a mutant p53 reactivator, restores the sensitivity of TP53 mutant-type thyroid cancer cells to the histone methylation inhibitor 3-Deazaneplanocin A. J Clin Endocrinol Metab. 2014 Jun;99(6):E962-70.

  [2]. Zhang Z, et al. Targeting cancer stem cells with p53 modulators. Oncotarget. 2016 Apr 8.

  [3]. Rao CV, et al. Chemopreventive effects of the p53-modulating agents CP-31398 and Prima-1 in tobacco carcinogen-induced lung tumorigenesis in A/J mice. Neoplasia. 2013 Sep;15(9):1018-27.