Revision 4

#18932Store at -20C

Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IHC-Bond, IHC-P

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

23

Source/Isotype:

Rabbit IgG

UniProt ID:

#P56747

Entrez-Gene Id:

9074

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
IHC Leica Bond 1:200 - 1:800
Immunohistochemistry (Paraffin) 1:200 - 1:800

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #59648.

Specificity / Sensitivity

Claudin-6 (E7U2O) XP® Rabbit mAb recognizes endogenous levels of total Claudin-6 protein. This antibody does not cross-react with Claudin-9 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val220 of human Claudin-6 protein.

Background

Tight junctions, or zonula occludens, form a continuous barrier to fluids across the epithelium and endothelium. They function in regulation of paracellular permeability and in the maintenance of cell polarity, blocking the movement of transmembrane proteins between the apical and the basolateral cell surfaces. Tight junctions are composed of claudin and occludin proteins, which join the junctions to the cytoskeleton (1,2). The claudin family is composed of 23 integral membrane proteins, and their expression, which varies among tissue types, may determine both the strength and properties of the epithelial barrier. Alteration in claudin protein expression pattern is associated with several types of cancer (2,3). Claudin-1 is expressed primarily in keratinocytes (4) and normal mammary epithelial cells, but is absent or reduced in breast carcinomas and breast cancer cell lines (5,6).

Claudin-6 is a member of the CLDN family that is expressed in epithelial cell sheets. Downregulation of Claudin-6 has been reported in breast invasive ductal carcinoma associated with lymphatic metastasis which may point to a function of Claudin-6 as a tumor suppressor. Claudin-6 is reported to play a role in inhibiting malignancy of breast cancer cells by inducing apoptosis, inhibiting proliferation and migration. Mechanisms of action of Claudin-6 have been described through various signaling pathways such as p38-MAPK, JAKs-STATs, ASK1-JNK, and other pathways (7,8). Regulation of Claudin-6 expression may occur through epigenetic mechanisms (9). Other reports describe aberrant expression in various malignancies (10,11). The clinical significance of Claudin-6 dysregulation has created interest in the potential for pharmaceutical intervention (12-14).

  1. Shin, K. et al. (2006) Annu Rev Cell Dev Biol 22, 207-35.
  2. Oliveira, S.S. and Morgado-Díaz, J.A. (2007) Cell Mol Life Sci 64, 17-28.
  3. Hewitt, K.J. et al. (2006) BMC Cancer 6, 186.
  4. Brandner, J.M. et al. (2002) Eur J Cell Biol 81, 253-63.
  5. Krämer, F. et al. (2000) Hum Genet 107, 249-56.
  6. Swisshelm, K. et al. (1999) Gene 226, 285-95.
  7. Wu, Q. et al. (2013) Chin Med J (Engl) 126, 3539-44.
  8. Guo, Y. et al. (2016) Int J Oncol 48, 2435-44.
  9. Liu, Y. et al. (2016) J Exp Clin Cancer Res 35, 120.
  10. Zhang, X. et al. (2015) Med Oncol 32, 148.
  11. Torres-Martínez, A.C. et al. (2017) Exp Cell Res 350, 226-235.
  12. Micke, P. et al. (2014) Int J Cancer 135, 2206-14.
  13. Ben-David, U. et al. (2013) Nat Commun 4, 1992.
  14. Schneider, I.C. et al. (2018) Biotechnol J 13, e1700345.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IHC-Bond: IHC Leica Bond IHC-P: Immunohistochemistry (Paraffin)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalStain is a registered trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 4
#18932

Claudin-6 (E7U2O) XP® Rabbit mAb

Western Blotting Image 1: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
使用 Claudin-6 (E7U2O) XP® Rabbit mAb(上图)或 β-Actin (D6A8) Rabbit mAb #8457(下图)对 OVCAR-3 细胞和 DU 145 细胞的提取物进行蛋白质印迹分析。Claudin-6 在 DU 145 细胞中阴性表达与预测的表达模式一致。
Immunohistochemistry Image 1: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
在 Leica® BOND Rx 上,使用 Claudin-6 (E7U2O) XP® Rabbit mAb 对石蜡包埋的人卵巢浆液性乳头状癌组织进行免疫组织化学分析。
Immunohistochemistry Image 1: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
与浓度匹配的 Rabbit (DA1E) mAb IgG XP® Isotype Control #3900(右图)比较,使用 Claudin-6 (E7U2O) XP® Rabbit mAb(左图)对石蜡包埋的人浆液性乳头状癌组织进行免疫组织化学分析。
Immunohistochemistry Image 2: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
对各种石蜡包埋的以下人体组织进行免疫组织化学分析:使用 Claudin-6 (E7U2O) XP® Rabbit mAb 对卵巢浆液性乳头状癌组织(左上图)、唾液腺小细胞癌组织(中上图)、甲状腺乳头状癌组织(右上图)、肝细胞癌组织(左下图)、非霍奇金氏淋巴瘤组织(中下图)和肺肉瘤组织(右下图)进行分析。
Immunohistochemistry Image 3: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
使用 Arginase-1 (E4U1I) 小鼠单克隆抗体对以下各种石蜡包埋的正常人组织进行免疫组织化学分析:使用 Claudin-6 (E7U2O) XP® Rabbit mAb 对胎盘组织(左上图)、阑尾组织(中上图)、食道组织(右上图)、脑组织(左下图)、胰腺组织(中下图)和扁桃体组织(右下图)进行分析。
Immunohistochemistry Image 4: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
使用 Claudin-6 (E7U2O) XP® Rabbit mAb(上图)或 DYKDDDDK Tag (D6W5B) Rabbit mAb #14793(下图),对石蜡包埋的未转染(左图)或 Claudin-9(右图)转染的 293T 细胞沉淀物进行免疫组织化学分析。
Immunohistochemistry Image 5: Claudin-6 (E7U2O) XP® Rabbit mAb Expand Image
使用 Claudin-6 (E7U2O) XP® Rabbit mAb 对石蜡包埋的 OVCAR-3 细胞沉淀物(左图,阳性)或 DU 145 细胞沉淀物(右图,阴性)进行免疫组织化学分析。