1. GPCR/G Protein Neuronal Signaling
  2. CGRP Receptor
  3. RM2

RM2 是一种 GRPr 拮抗剂。RM2 可选择性结合 GRPr,阻断激动剂诱导的受体内化,并抑制激动剂触发的细胞内钙动员。RM2 可用于前列腺癌的相关研究。

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Custom Peptide Synthesis

RM2

RM2 Chemical Structure

CAS No. : 1186600-65-6

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  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

RM2 is a GRPr antagonist. RM2 selectively binds to GRPr, blocks agonist-induced receptor internalization, and inhibits agonist-triggered intracellular calcium mobilization. RM2 can be used in studies related to prostate cancer[1].

体外研究
(In Vitro)

RM2 以高亲和力结合人前列腺癌冰冻切片上的 GRP 受体,其 IC50 为 7.7 nmol/l[1]
RM2 是人体组织切片上 GRP 受体的选择性配体,其 IC50 为 9.3 nmol/l,对 NMBr 或 BB3r 亚型无可检测的亲和力[1]
RM2 (1000 nmol/l; 30 min) 可在 HEK-GRPr 细胞中作为 GRP 受体拮抗剂,在 1000 nmol/l 浓度下无法诱导受体内化,但在相同浓度下可完全抑制蛙皮素诱导的受体内化[1]
RM2 (1-10 μmol/l; 60 s) 可作为 PC-3 细胞中的 GRP 受体拮抗剂,在 1 μmol/l 或 10 μmol/l 浓度下对细胞内 Ca2+动员无固有活性,但在 10 μmol/l 浓度下可抑制蛙皮素诱导的 Ca2+动员[1]

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

Immunofluorescence[1]

Cell Line: HEK293 cells stably expressing HA epitope-tagged human GRPr (HEK-GRPr cells)
Concentration: 1000 nmol/l (single treatment); 1000 nmol/l (co-treated with 10 nmol/l bombesin)
Incubation Time: 30 min (37°C, single treatment); 30 min (37°C, co-treated with 10 nmol/l bombesin)
Result: Failed to stimulate GRP receptor internalization.
Prevented bombesin-induced GRP receptor internalization when co-treated with 10 nmol/l bombesin.
体内研究
(In Vivo)

111In-RM2 (10 pmol;尾静脉注射) 在 PC-3 前列腺癌异种移植瘤中实现了高效、持续的 GRPr 特异性摄取,注射后 72 小时的瘤血比可达 4070[1]
68Ga-RM2 (80 pmol;静脉注射) 在 PC-3 前列腺癌异种移植物中表现出 GRPr 特异性的高摄取,注射后 80 分钟时肿瘤与肾脏的比值可达 6.1[1]
68Ga-RM2 (80 pmol;静脉注射) 在雄激素依赖性 LNCaP 前列腺癌异种移植物中实现 GRPr 介导的特异性摄取,注射后 120 分钟时肿瘤与血液的比值可达 23.4[1]

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

分子量

1639.89

Formula

C78H118N20O19

CAS 号
Sequence

DOTA-{2-(4-aminopiperidin-1-yl)acetic acid}-{DPhe}-Gln-Trp-Ala-Val-Gly-His-{Sta}-Leu-NH2

Sequence Shortening

DOTA-{2-(4-aminopiperidin-1-yl)acetic acid}-{DPhe}-QWAVGH-{Sta}-L-NH2

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

纯度 & 产品资料
参考文献
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  • 稀释计算器

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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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