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產品描述 Cetuximab (anti-EGFR)是一種新型的分子靶向藥物,是EGFR的抑制劑,同時也是人源EGFR單克隆抗體,與EGFR的胞外結合區域相互作用并抑制其受配體刺激;MW:145.781 KD。
靶點
EGFR [4]
(Cell-free assay)
0.39 nM(Kd)
體外研究
Cetuximab (anti-EGFR)是一種重組嵌合的單克隆抗體,與人類EGFR受體具有高度親和力。它與EGFR結合、抑制其受體相關的激酶的磷酸化合激活,從而導致細胞生長受到抑制、誘導細胞凋亡并減少VEGF的產生[5]。Cetuximab具有顯著的單藥抗腫瘤作用,在高表達EGFR蛋白的NPC細胞系中與cisplatin或paclitaxel具有加成作用,但對低表達EGFR的NPC細胞系(如CNE-2和C666-1)的作用甚微[1]。Cetuximab阻止EGFR與配體的相互作用,抑制下游RAS-ERK激活。它能夠促進內質網應激反應(ER stress),促使ER蛋白轉運至細胞膜。它競爭性地抑制配體結合,抑制酪氨酸激酶激活,導致受體下調。除了競爭性抑制作用,cetuximab與EGFR結合還可能引起受體內在化和被破壞[3]。
體內研究
在小鼠移植瘤模型中,Cetuximab能夠增強幾種化療藥物的抗腫瘤活性[1]。它通過多種機制,包括抑制細胞周期的進展,將細胞周期阻滯在G1期、減少S期細胞數目來發揮其抗腫瘤作用。Cetuximab將細胞阻滯在G1期還能引起凋亡,通過誘導和激活相關促凋亡分子。單獨給藥或是與carboplatin協同給藥能夠引起腫瘤大小減少、轉移擴散減少、減少細胞表面表達EGFR、無BRAF和K-ras突變的NCI-N87腫瘤中MVD。而在源自于MKN-45的腫瘤中作用甚微(其腫瘤表型是BRAF和K-ras行盛行,但胞質內EGFR弱表達)[3]。
細胞實驗: - 合并
Objective: 細胞活力檢測
Cells: HNE1和CNE2細胞
Concentrations: 62.5, 125, 250, 500, 1000 或 2000?μg/ml
Incubation Time: 48 h
Method: 將細胞以5 × 103個細胞/孔的密度培養與平底96孔板。在37℃、5% CO2的條件下孵育24小時后,將200 μL用培養基稀釋成不同濃度的cetuximab (62.5, 125, 250, 500, 1000或2000?μg/mL)和/或cisplatin (0.25, 0.5, 1, 2, 4或8?μg/mL)加入每孔。處理48小時后,向每孔加入10 μL CCK-8。孵育2小時后,通過檢測450 nm處的吸收光值檢測細胞活力。
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27313893
Objective: To analyze the apoptosis of CRC cells
Cells: human DiFi CRC (Colorectal Cancer) cells
Concentrations: 10 μg/ml
Incubation Time: 72h
Method: To analyze the apoptosis, cells were seeded into 6-well plates (3 × 105 cells per well). After 24 h, cells were cultured both in the absence and presence of drugs. Cell death and apoptosis were assessed by cytofluorimetric analysis using PE-annexin V and 7-aminoactinomycin D (7-AAD) according to the manufacturer's instructions at different time points.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27135741
Cetuximab can apply to nude mice, various cancer cell lines and other related assays (Only for Reference)
動物實驗: - 合并
Objective: Cetuximab在小鼠胃癌模型中的抗腫瘤活性
Animal Models: 人類胃癌的裸鼠模型(CD-1/nu-nu mice)
Formulation: 0.9% NaCl
Dosages: 1 mg/kg
Administration: i.p.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/22011788
Objective: To investigate the relationship between the EGFR levels and the responsiveness to cetuximab treatment in human cancer xenograft models
Animal Models: Female athymic, nude mice were implanted s.c. with ~1 mm3 tumor fragments
Formulation: PBS
Dosages: 0.25, 0.5 or 1 mg/mouse
Administration: i.p.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27186886
Cetuximab can apply to nude mice, various cancer cell lines and other related assays (Only for Reference)
參考文獻
[1] Gu J, et al. Biochem Res Int. 2016, 2016:7016907.
[2] Pozzi C, et al. Nat Med. 2016, 22(6):624-31.
[3] Hotz B, et al. Gastric Cancer. 2012, 15(3):252-64.
[4] Kim GP, et al. Biologics. 2008, 2(2):223-8.
- 合并
抗體信息
CAS No. 205923-56-4
Formulation PBS buffer, pH 7.2
Isotype Human IgG1
Source CHO cells
Storage Store the undiluted solution at 4°C in the dark to avoid freeze-thaw cycles
單抗藥物對照品
貝伐單抗,Bevacizumab 納武單抗,Nivolumab
帕妥珠單抗,Pertuzumab 曲妥珠單抗,Trastuzumab
阿達木單抗,Adalimumab 帕姆單抗,Pembrolizumab
迪諾蘇單抗,Denosumab 阿替唑單抗,Atezolizumab
優特克諾單抗,Ustekinumab 維多珠單抗,Vedolizumab
1、33個產品,三種規格:1mg,2mg,5mg;
2、價格優,全現貨;
3、科研產品,僅用科研,禁用臨床;
Supplier供應商:BioVector NTCC質粒載體菌株細胞蛋白抗體基因保藏中心
電話:010-53513060
網址http://www.biovector.net
靶點
EGFR [4]
(Cell-free assay)
0.39 nM(Kd)
體外研究
Cetuximab (anti-EGFR)是一種重組嵌合的單克隆抗體,與人類EGFR受體具有高度親和力。它與EGFR結合、抑制其受體相關的激酶的磷酸化合激活,從而導致細胞生長受到抑制、誘導細胞凋亡并減少VEGF的產生[5]。Cetuximab具有顯著的單藥抗腫瘤作用,在高表達EGFR蛋白的NPC細胞系中與cisplatin或paclitaxel具有加成作用,但對低表達EGFR的NPC細胞系(如CNE-2和C666-1)的作用甚微[1]。Cetuximab阻止EGFR與配體的相互作用,抑制下游RAS-ERK激活。它能夠促進內質網應激反應(ER stress),促使ER蛋白轉運至細胞膜。它競爭性地抑制配體結合,抑制酪氨酸激酶激活,導致受體下調。除了競爭性抑制作用,cetuximab與EGFR結合還可能引起受體內在化和被破壞[3]。
體內研究
在小鼠移植瘤模型中,Cetuximab能夠增強幾種化療藥物的抗腫瘤活性[1]。它通過多種機制,包括抑制細胞周期的進展,將細胞周期阻滯在G1期、減少S期細胞數目來發揮其抗腫瘤作用。Cetuximab將細胞阻滯在G1期還能引起凋亡,通過誘導和激活相關促凋亡分子。單獨給藥或是與carboplatin協同給藥能夠引起腫瘤大小減少、轉移擴散減少、減少細胞表面表達EGFR、無BRAF和K-ras突變的NCI-N87腫瘤中MVD。而在源自于MKN-45的腫瘤中作用甚微(其腫瘤表型是BRAF和K-ras行盛行,但胞質內EGFR弱表達)[3]。
細胞實驗: - 合并
Objective: 細胞活力檢測
Cells: HNE1和CNE2細胞
Concentrations: 62.5, 125, 250, 500, 1000 或 2000?μg/ml
Incubation Time: 48 h
Method: 將細胞以5 × 103個細胞/孔的密度培養與平底96孔板。在37℃、5% CO2的條件下孵育24小時后,將200 μL用培養基稀釋成不同濃度的cetuximab (62.5, 125, 250, 500, 1000或2000?μg/mL)和/或cisplatin (0.25, 0.5, 1, 2, 4或8?μg/mL)加入每孔。處理48小時后,向每孔加入10 μL CCK-8。孵育2小時后,通過檢測450 nm處的吸收光值檢測細胞活力。
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27313893
Objective: To analyze the apoptosis of CRC cells
Cells: human DiFi CRC (Colorectal Cancer) cells
Concentrations: 10 μg/ml
Incubation Time: 72h
Method: To analyze the apoptosis, cells were seeded into 6-well plates (3 × 105 cells per well). After 24 h, cells were cultured both in the absence and presence of drugs. Cell death and apoptosis were assessed by cytofluorimetric analysis using PE-annexin V and 7-aminoactinomycin D (7-AAD) according to the manufacturer's instructions at different time points.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27135741
Cetuximab can apply to nude mice, various cancer cell lines and other related assays (Only for Reference)
動物實驗: - 合并
Objective: Cetuximab在小鼠胃癌模型中的抗腫瘤活性
Animal Models: 人類胃癌的裸鼠模型(CD-1/nu-nu mice)
Formulation: 0.9% NaCl
Dosages: 1 mg/kg
Administration: i.p.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/22011788
Objective: To investigate the relationship between the EGFR levels and the responsiveness to cetuximab treatment in human cancer xenograft models
Animal Models: Female athymic, nude mice were implanted s.c. with ~1 mm3 tumor fragments
Formulation: PBS
Dosages: 0.25, 0.5 or 1 mg/mouse
Administration: i.p.
Reference: https://www.ncbi.nlm.nih.gov/pubmed/27186886
Cetuximab can apply to nude mice, various cancer cell lines and other related assays (Only for Reference)
參考文獻
[1] Gu J, et al. Biochem Res Int. 2016, 2016:7016907.
[2] Pozzi C, et al. Nat Med. 2016, 22(6):624-31.
[3] Hotz B, et al. Gastric Cancer. 2012, 15(3):252-64.
[4] Kim GP, et al. Biologics. 2008, 2(2):223-8.
- 合并
抗體信息
CAS No. 205923-56-4
Formulation PBS buffer, pH 7.2
Isotype Human IgG1
Source CHO cells
Storage Store the undiluted solution at 4°C in the dark to avoid freeze-thaw cycles
單抗藥物對照品
貝伐單抗,Bevacizumab 納武單抗,Nivolumab
帕妥珠單抗,Pertuzumab 曲妥珠單抗,Trastuzumab
阿達木單抗,Adalimumab 帕姆單抗,Pembrolizumab
迪諾蘇單抗,Denosumab 阿替唑單抗,Atezolizumab
優特克諾單抗,Ustekinumab 維多珠單抗,Vedolizumab
1、33個產品,三種規格:1mg,2mg,5mg;
2、價格優,全現貨;
3、科研產品,僅用科研,禁用臨床;
Supplier供應商:BioVector NTCC質粒載體菌株細胞蛋白抗體基因保藏中心
電話:010-53513060
網址http://www.biovector.net
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