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AB223052

Anti-CD9 antibody

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(119 Publications)

Anti-CD9 antibody (ab223052) is a rabbit polyclonal antibody detecting CD9 in Western Blot, IHC-P. Suitable for Human, Mouse.

- Over 60 publications

View Alternative Names

CD9, MIC3, TSPAN29, GIG2, CD9 antigen, 5H9 antigen, Cell growth-inhibiting gene 2 protein, Leukocyte antigen MIC3, Motility-related protein, Tetraspanin-29, p24, MRP-1, Tspan-29

9 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)

Paraffin embedded sections of human colon cancer tissue were stained for CD9 with ab223052 at 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)

Paraffin embedded sections of human placenta tissue were stained for CD9 with ab223052 at 1/100 dilution in immunohistochemical analysis.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)

Left : IHC image of ab223052 diluted at 1 : 100 and staining in paraffin-embedded human tonsils tissue performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. Right : Negative Control

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)

Left : IHC image of ab223052 diluted at 1 : 100 and staining in paraffin-embedded human bladder tissue performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. Right : Negative Control

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD9 antibody (AB223052)

Left : IHC image of ab223052 diluted at 1 : 100 and staining in paraffin-embedded human Prostate gland Cancer performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. Right : negative control

Western blot - Anti-CD9 antibody (AB223052)
  • WB

Supplier Data

Western blot - Anti-CD9 antibody (AB223052)

All lanes:

Western blot - Anti-CD9 antibody (ab223052) at 1/1000 dilution

Lane 1:

HepG2 whole cell lysate at 20 µg

Lane 2:

HepG2 whole cell lysate at 40 µg

Secondary

All lanes:

Goat polyclonal to rabbit IgG at 1/50000 dilution

Predicted band size: 25 kDa

Observed band size: 25 kDa

false

Western blot - Anti-CD9 antibody (AB223052)
  • WB

Supplier Data

Western blot - Anti-CD9 antibody (AB223052)

All lanes:

Western blot - Anti-CD9 antibody (ab223052) at 1/1000 dilution

Lane 1:

Hela whole cell lysate at 20 µg

Lane 2:

HepG2 whole cell lysate at 20 µg

Lane 3:

LO2 whole cell lysate at 20 µg

Lane 4:

A549 whole cell lysate at 20 µg

Lane 5:

U87 whole cell lysate at 20 µg

Secondary

All lanes:

Goat polyclonal to rabbit IgG at 1/50000 dilution

Predicted band size: 25 kDa

Observed band size: 25 kDa

false

Western blot - Anti-CD9 antibody (AB223052)
  • WB

Supplier Data

Western blot - Anti-CD9 antibody (AB223052)

All lanes:

Western blot - Anti-CD9 antibody (ab223052) at 1/500 dilution

Lane 1:

Rat Liver tissue lysate at 20 µg

Lane 2:

Rat Lung tissue lysate at 20 µg

Lane 3:

Mouse Liver tissue lysate at 20 µg

Lane 4:

Mouse Lung tissue lysate at 20 µg

Secondary

All lanes:

Goat polyclonal to rabbit IgG at 1/50000 dilution

Predicted band size: 25 kDa

Observed band size: 25 kDa

false

Western blot - Anti-CD9 antibody (AB223052)
  • WB

CiteAb

Western blot - Anti-CD9 antibody (AB223052)

CD9 western blot using anti-CD9 antibody ab223052. Publication image and figure legend from Gao, K., Jin, J., et al., 2019, Front Immunol, PubMed 31354717.

ab223052 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab223052 please see the product overview.

Characterization of exosomes derived from septic mouse serum. (A) Electron microscope (EM) analysis of exosomes. The circular particles representing exosomes are indicated by arrows. The scale bar represents a length of 200 nm. (B) Exosomes containing 20 μg of proteins were used to detect exosome-specific proteins (CD9, CD63, and CD81) by Western blot. (C) The size distribution of exosomes was determined by nanoparticle tracking analysis (NTA). (D) Dynamic change in exosome protein concentrations. The exosomes were separated from 200 μl of serum harvested from septic mice at different time points for protein quantitation. (E) The sequential detection of exosomes derived from septic mouse serum. The particle sizes of exosomes were analyzed by the NTA technique. Data are shown as the mean ± SD from three independent experiments (n = 3) and analyzed by one-way ANOVA. *p < 0.05, compared with the 0 h as the control.

false

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Human

Applications

WB, IHC-P

applications

Immunogen

Recombinant Fragment Protein within Human CD9 aa 100-200. The exact immunogen used to generate this antibody is proprietary information.

P21926

Reactivity data

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Product details

Product Specifications

Anti-CD9 antibody (ab223052) is a rabbit polyclonal antibody and is validated for use in IHC-P, WB in human, mouse samples.
Anti-CD9 antibody (ab223052) specifically detects CD9 (UniProt ID: P21926; Molecular weight: 25kDa) and is sold in 50 µL selling sizes.

Quality and Validation

Abcam's high quality validation processes ensure Anti-CD9 antibody (ab223052) has high sensitivity and specificity.
Anti-CD9 antibody (ab223052) has been cited over 60 times in peer reviewed journals and is trusted by the scientific community.


Target Information

CD9 also known as p24 is a member of the tetraspanin family, which includes proteins involved in various cellular processes. CD9 (p24) plays a significant role in cancer progression and metastasis by influencing cell adhesion, migration, and signaling. CD9 (p24) is found on the surface of cancer cells and within exosomes, impacting cancer progression and therapy resistance. CD9's role in cancer is complex, as it can both suppress and promote tumor growth depending on the context. The protein's interactions within tetraspanin-enriched microdomains (TEMs) are crucial for its function.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Purification notes
>95% pure
Storage buffer
pH: 7.4 Preservative: 0.1% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

CD9 also known as motility-related protein-1 (MRP-1) is a transmembrane glycoprotein with a molecular weight of approximately 24 kDa. This protein is part of the tetraspanin family and shows widespread expression throughout different tissues including hematopoietic and non-hematopoietic cells. CD9 participates in numerous cellular processes by interacting with integrins and other cell surface receptors facilitating the organization of molecular complexes within the cell membrane.
Biological function summary

The CD9 protein is integral to cell adhesion migration and fusion. It forms complexes with other tetraspanins and proteins like EWI-2 and EWI-F contributing to cellular signaling and membrane compartmentalization. Additionally CD9 plays an important role in the formation and secretion of exosomes tiny vesicles emitted by cells that mediate cell-to-cell communication. These exosomes can be analyzed using tools like exosome assays and detection kits that target CD9 proteins.

Pathways

CD9 is involved in the regulation of immune response and cell morphology. It participates in pathways such as the integrin signaling pathway and the phosphatidylinositol 3-kinase (PI3K) signaling pathway. CD9 modulates these interactions by associating with proteins such as integrins and other members of the tetraspanin family influencing cellular movement and proliferation.

CD9 has connections to various conditions including cancer and infectious diseases. In cancer CD9 can influence tumor progression and metastasis while its altered expression levels have been associated with different cancer types. CD9 interacts with proteins such as integrins and CD81 in these contexts affecting cellular adhesion and migration mechanisms. In infectious diseases CD9 is involved in viral entry processes as some viruses utilize CD9 and its associated tetraspanins for entry into host cells.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Integral membrane protein associated with integrins, which regulates different processes, such as sperm-egg fusion, platelet activation and aggregation, and cell adhesion (PubMed : 14575715, PubMed : 18541721, PubMed : 8478605). Present at the cell surface of oocytes and plays a key role in sperm-egg fusion, possibly by organizing multiprotein complexes and the morphology of the membrane required for the fusion (By similarity). In myoblasts, associates with CD81 and PTGFRN and inhibits myotube fusion during muscle regeneration (By similarity). In macrophages, associates with CD81 and beta-1 and beta-2 integrins, and prevents macrophage fusion into multinucleated giant cells specialized in ingesting complement-opsonized large particles (PubMed : 12796480). Also prevents the fusion between mononuclear cell progenitors into osteoclasts in charge of bone resorption (By similarity). Acts as a receptor for PSG17 (By similarity). Involved in platelet activation and aggregation (PubMed : 18541721). Regulates paranodal junction formation (By similarity). Involved in cell adhesion, cell motility and tumor metastasis (PubMed : 7511626, PubMed : 8478605).
See full target information CD9

Publications (119)

Recent publications for all applications. Explore the full list and refine your search

Biomaterials research 29:0244 PubMed40873954

2025

Engineered Mesenchymal Stem Cell-Derived Small Extracellular Vesicles Mitigate Liver Fibrosis by Delivering USP10 to Reprogram Macrophage Phenotype.

Applications

Unspecified application

Species

Unspecified reactive species

Siyuan Tian,Xia Zhou,Linhua Zheng,Jingyi Liu,Miao Zhang,Shuoyi Ma,Xiaohong Zheng,Guanya Guo,Ruobing Ju,Fangfang Yang,Yansheng Liu,Bo Li,Yinan Hu,Erzhuo Xia,Rui Su,Keshuai Sun,Lina Cui,Changcun Guo,Xinmin Zhou,Jingbo Wang,Yulong Shang,Ying Han

Frontiers in immunology 16:1586174 PubMed40519909

2025

Small extracellular vesicles from human umbilical cord mesenchymal stem cells delivering miR-202-5p alleviate renal ischemia-reperfusion injury by targeting the GOLIM4/PI3K/AKT axis.

Applications

Unspecified application

Species

Unspecified reactive species

Xiang Peng,Wei Shi,Haitao Yu,Zhenwei Feng,Zongjie Wei,Weiyang He,Xin Gou,Yongpeng Xie

Metabolites 15: PubMed40422900

2025

Intestinal Epithelial-Derived Exosomes Under Cold Stimulation Promote Adipose Thermogenesis.

Applications

Unspecified application

Species

Unspecified reactive species

Xue Han,Tiange Feng,Yaxu Yang,Ziming Zhu,Fangyu Shao,Lijun Sun,Yue Yin,Weizhen Zhang

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 12:e2500599 PubMed40349160

2025

3D-Printed Titanium Trabecular Scaffolds with Sustained Release of Hypoxia-Induced Exosomes for Dual-Mimetic Bone Regeneration.

Applications

Unspecified application

Species

Unspecified reactive species

Lincong Luo,Weihan Zheng,Jiaying Li,Tingting Chen,Wanting Xue,Tao Lin,Mingrui Liu,Zi Yan,Jiaxin Yang,Jiamin Li,Jiahao Pu,Yaobin Wu,Konghe Hu,Shiyu Li,Wenhua Huang

Cell biology and toxicology 41:78 PubMed40304798

2025

Lactate-induced macrophage HMGB1 lactylation promotes neutrophil extracellular trap formation in sepsis-associated acute kidney injury.

Applications

Unspecified application

Species

Unspecified reactive species

Siwei Wei,Zijuan Dai,Lei Wu,Zhen Xiang,Xiaoxiao Yang,Liubing Jiang,Zhen Du

eLife 13: PubMed40244655

2025

Targeting IRE1α improves insulin sensitivity and thermogenesis and suppresses metabolically active adipose tissue macrophages in male obese mice.

Applications

Unspecified application

Species

Unspecified reactive species

Dan Wu,Venkateswararao Eeda,Zahra Maria,Komal Rawal,Audrey Wang,Oana Herlea-Pana,Ram Babu Undi,Hui-Ying Lim,Weidong Wang

Frontiers in pharmacology 16:1547685 PubMed40223922

2025

Schisandrin B downregulates exosomal fibronectin 1 expression to inhibit hepatocellular carcinoma growth.

Applications

Unspecified application

Species

Unspecified reactive species

Baoyi Jiang,Jie Yang,Qingtian Huang,Wei Li,Qian Peng,Huoye Gan,Tieli Peng,Leyi Yao,Ling Qi

Frontiers in cell and developmental biology 13:1532097 PubMed40177133

2025

Expulsion of iron-rich ferritin via CD63-mediated exosome drives ferroptosis resistance in ovarian cancer cells.

Applications

Unspecified application

Species

Unspecified reactive species

Anna Martina Battaglia,Alessandro Sacco,Emanuele Giorgio,Lavinia Petriaggi,Julia Elzanowska,Ana Rita Cruz,Luis Rocha,Catarina Esteves Pereira,Maria Carolina Strano Moraes,Luca Palazzo,Claudia De Vitis,Bruno Costa-Silva,Flavia Biamonte

Biology 14: PubMed40136509

2025

Small Extracellular Vesicles with a High Sphingomyelin Content Isolated from Hypertensive Diabetic db/db Mice Inhibits Calcium Mobilization and Augments Amiloride-Sensitive Epithelial Sodium Channel Activity.

Applications

Unspecified application

Species

Unspecified reactive species

Hunter Ramsay,Ling Yu,Faisal F Alousi,Abdel A Alli

Journal of extracellular biology 4:e70036 PubMed40134760

2025

Enhanced Small Extracellular Vesicle Uptake by Activated Interneurons Improves Stroke Recovery in Mice.

Applications

Unspecified application

Species

Unspecified reactive species

Mingjin Wang,Zhongwu Liu,Weida Wang,Michael Chopp,Michael Millman,Yanfeng Li,Pasquale Cepparulo,Amy Kemper,Chao Li,Li Zhang,Yi Zhang,Zheng Gang Zhang
View all publications

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