Human Fibroblast Activation Protein alpha /FAP Antibody
Human Fibroblast Activation Protein alpha /FAP Antibody Summary
Leu26-Asp760
Accession # Q12884
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
Detection of Human Fibroblast Activation Protein alpha /FAP by Western Blot. Western blot shows lysates of WI-38 human lung fibroblast cell line. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human Fibroblast Activation Protein a/FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for Fibroblast Activation Protein a/FAP at approximately 97 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Fibroblast Activation Protein alpha /FAP in Human Squamous Cell Carcinoma. Fibroblast Activation Protein a/FAP was detected in immersion fixed paraffin-embedded sections of human squamous cell carcinoma using Sheep Anti-Human Fibroblast Activation Protein a/FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to connective tissue. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Fibroblast Activation Protein alpha /FAP in Human Basal Cell Carcinoma. Fibroblast Activation Protein alpha /FAP was detected in immersion fixed paraffin-embedded sections of human basal cell carcinoma using Sheep Anti-Human Fibroblast Activation Protein alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) at 10 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Detection of Human Fibroblast Activation Protein alpha /FAP by Simple WesternTM. Simple Western lane view shows lysates of IMR‑90 human lung fibroblast cell line and WI‑38 human lung fibroblast cell line, loaded at 0.2 mg/mL. A specific band was detected for Fibroblast Activation Protein alpha /FAP at approximately 130 kDa (as indicated) using 10 µg/mL of Sheep Anti-Human Fibroblast Activation Protein alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) followed by 1:50 dilution of HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
Western Blot Shows Human Fibroblast Activation Protein alpha /FAP Specificity by Using Knockout Cell Line. Western blot shows lysates of WI‑38 human lung fibroblast cell line and human FAP knockout WI‑38 human lung fibroblast cell line. PVDF membrane was probed with 0.5 µg/mL of Sheep Anti-Human Fibroblast Activation Protein alpha /FAP Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3715) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (HAF016). A specific band was detected for Fibroblast Activation Protein alpha /FAP at approximately 97 kDa (as indicated) in the parental WI‑38 human lung fibroblast cell line, but is not detectable in knockout WI‑38 human lung fibroblast cell line. GAPDH (AF5718) is shown as a loading control. This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.
Detection of Fibroblast Activation Protein alpha /FAP in Human Esophagus. Formalin-fixed paraffin-embedded tissue sections of human squamous cell carcinoma in the esophagus were probed for FAP mRNA (ACD RNAScope Probe, catalog # 411971; Fast Red chromogen, ACD catalog # 322360). Adjacent tissue section was processed for immunohistochemistry using sheep anti-human FAP polyclonal antibody (R&D Systems catalog # AF3715) at 5ug/mL with overnight incubation at 4 degrees Celsius followed by incubation with anti-sheep IgG VisUCyte HRP Polymer Antibody (Catalog # VC006) and DAB chromogen (yellow-brown). Tissue was counterstained with hematoxylin (blue). Specific staining was localized to connective tissue.
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Fibroblast Activation Protein alpha/FAP
FAP (also known as seprase) is a Type II transmembrane serine protease that is structurally related to dipeptidyl peptidase IV (1). FAP has substrate specificity similar to dipeptidyl peptidase IV, which is specific for N-terminal Xaa-Pro sequences, but FAP is also an endopeptidase able to degrade gelatin and Type I collagen (2). The enzymatically active form of FAP is a dimer (3). FAP has a restricted tissue distribution. It is not detectable in normal tissues or resting fibroblasts, but is highly expressed on reactive stromal fibroblasts in epithelial cancers (4), in granulation tissue during wound healing, and in bone and soft tissue sarcomas (5). Because of its expression patterns and enzymatic activities, FAP is believed to play roles in tumor invasion, tissue remodeling, and wound repair.
- Scanlan, M.J. et al. (1994) Proc. Natl. Acad. Sci. USA 91:5657.
- Park, J.E. et al. (1999) J. Biol. Chem. 274:36505.
- Pineiro-Sanchez, M.L. et al. (1997) J. Biol. Chem. 272:7595.
- Garin-Chesa, P. et al. (1990) Proc. Natl. Acad. Sci. USA 87:7235.
- Rettig, W.J. et al. (1988) Proc. Natl. Acad. Sci. USA 85:3110.
Product Datasheets
Citations for Human Fibroblast Activation Protein alpha /FAP Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 10
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Macrophages are exploited from an innate wound healing response to facilitate cancer metastasis
Authors: T Muliaditan, J Caron, M Okesola, JW Opzoomer, P Kosti, M Georgouli, P Gordon, S Lall, DM Kuzeva, L Pedro, JD Shields, CE Gillett, SS Diebold, V Sanz-Moren, T Ng, E Hoste, JN Arnold
Nat Commun, 2018-07-27;9(1):2951.
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Preclinical platforms to study therapeutic efficacy of human gamma δ T cells
Authors: Lingling Ou, Huaishan Wang, Hui Huang, Zhiyan Zhou, Qiang Lin, Yeye Guo et al.
Clinical and Translational Medicine
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Increased expression of cancer-associated fibroblast markers at the invasive front and its association with tumor-stroma ratio in colorectal cancer
Authors: TP Sandberg, MPME Stuart, J Oosting, RAEM Tollenaar, CFM Sier, WE Mesker
BMC Cancer, 2019-03-29;19(1):284.
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Collagen Family and Other Matrix Remodeling Proteins Identified by Bioinformatics Analysis as Hub Genes Involved in Gastric Cancer Progression and Prognosis
Authors: Chivu-Economescu M, Necula LG, Matei L et al.
International journal of molecular sciences
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The multifaceted role of the stroma in the healthy prostate and prostate cancer
Authors: Di Carlo, E;Sorrentino, C;
Journal of translational medicine
Species: Human
Sample Types: Whole Tissue
Applications: Immunohistochemistry -
Senescent fibroblasts in the tumor stroma rewire lung cancer metabolism and plasticity
Authors: Lee, JY;Reyes, N;Woo, SH;Goel, S;Stratton, F;Kuang, C;Mansfield, AS;LaFave, LM;Peng, T;
bioRxiv : the preprint server for biology
Species: Transgenic Mouse
Sample Types: Whole Tissue
Applications: Immunohistochemistry -
Expression of fibroblast activation protein-? in human deep vein thrombosis
Authors: Oguri, N;Gi, T;Nakamura, E;Furukoji, E;Goto, H;Maekawa, K;Tsuji, AB;Nishii, R;Aman, M;Moriguchi-Goto, S;Sakae, T;Azuma, M;Yamashita, A;
Thrombosis research
Species: Human
Sample Types: Whole Cells
Applications: Immunocytochemistry -
Obesity defined molecular endotypes in the synovium of patients with osteoarthritis provides a rationale for therapeutic targeting of fibroblast subsets
Authors: Susanne N. Wijesinghe, Amel Badoume, Dominika E. Nanus, Archana Sharma‐Oates, Hussein Farah, Michelangelo Certo et al.
Clinical and Translational Medicine
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Functional roles of FAP-alpha in metabolism, migration and invasion of human cancer cells
Authors: Noriko Mori, Jiefu Jin, Balaji Krishnamachary, Yelena Mironchik, Flonné Wildes, Farhad Vesuna et al.
Frontiers in Oncology
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Engineering edgeless human skin with enhanced biomechanical properties
Authors: A Pappalardo, D Alvarez Ce, S Fang, AR Herschman, EY Jeon, KM Myers, JW Kysar, HE Abaci
Science Advances, 2023-01-27;9(4):eade2514.
Species: Human
Sample Types: Whole Tissue
Applications: IHC -
Inhibition of fibroblast activation protein ameliorates cartilage matrix degradation and osteoarthritis progression
Authors: Aoyuan Fan, Genbin Wu, Jianfang Wang, Laiya Lu, Jingyi Wang, Hanjing Wei et al.
Bone Research
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3D bioprinting of an implantable xeno‐free vascularized human skin graft
Authors: Tania Baltazar, Bo Jiang, Alejandra Moncayo, Jonathan Merola, Mohammad Z. Albanna, W. Mark Saltzman et al.
Bioengineering & Translational Medicine
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Evaluating near‐infrared photoimmunotherapy for targeting fibroblast activation protein‐ alpha expressing cells in vitro and in vivo
Authors: Jiefu Jin, James D. Barnett, Balaji Krishnamachary, Yelena Mironchik, Catherine K. Luo, Hisataka Kobayashi et al.
Cancer Science
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FAP is critical for ovarian cancer cell survival by sustaining NF-kappaB activation through recruitment of PRKDC in lipid rafts
Authors: B Li, Z Ding, O Calbay, Y Li, T Li, L Jin, S Huang
Cancer Gene Therapy, 2022-12-09;0(0):.
Species: Mouse
Sample Types: Whole Cell
Applications: IP -
CCL18 signaling from tumor-associated macrophages activates fibroblasts to adopt a chemoresistance-inducing phenotype
Authors: W Zeng, L Xiong, W Wu, S Li, J Liu, L Yang, L Lao, P Huang, M Zhang, H Chen, N Miao, Z Lin, Z Liu, X Yang, J Wang, P Wang, E Song, Y Yao, Y Nie, J Chen, D Huang
Oncogene, 2022-11-22;0(0):.
Species: Human
Sample Types: Cell Lysates, Whole Cells, Whole Tissue
Applications: Flow Cytometry, IHC, Western Blot -
Thy-1 plays a pathogenic role and is a potential biomarker for skin fibrosis in scleroderma
Authors: RG Marangoni, P Datta, A Paine, S Duemmel, MA Nuzzo, L Sherwood, J Varga, C Ritchlin, BD Korman
JCI Insight, 2022-10-10;0(0):.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC -
Type IV Collagen in Human Colorectal Liver Metastases-Cellular Origin and a Circulating Biomarker
Authors: M Lindgren, G Rask, J Jonsson, A Berglund, C Lundin, P Jonsson, I Ljuslinder, H Nyström
Cancers, 2022-07-13;14(14):.
Species: Human
Sample Types: Whole Tissue
Applications: IHC -
A stromal Integrated Stress Response activates perivascular cancer-associated fibroblasts to drive angiogenesis and tumour progression
Authors: II Verginadis, H Avgousti, J Monslow, G Skoufos, F Chinga, K Kim, NM Leli, IV Karagounis, BI Bell, A Velalopoul, CS Salinas, VS Wu, Y Li, J Ye, DA Scott, AL Osterman, A Sengupta, A Weljie, M Huang, D Zhang, Y Fan, E Radaelli, JW Tobias, F Rambow, P Karras, JC Marine, X Xu, AG Hatzigeorg, S Ryeom, JA Diehl, SY Fuchs, E Puré, C Koumenis
Nature Cell Biology, 2022-06-02;0(0):.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC -
Single-cell proteomics defines the cellular heterogeneity of localized prostate cancer
Authors: Laura De Vargas Roditi, Andrea Jacobs, Jan H. Rueschoff, Pete Bankhead, Stéphane Chevrier, Hartland W. Jackson et al.
Cell Reports Medicine
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Fibroblast Activation Protein Specific Optical Imaging in Non-Small Cell Lung Cancer
Authors: Layla Mathieson, Richard A. O’Connor, Hazel Stewart, Paige Shaw, Kevin Dhaliwal, Gareth O. S. Williams et al.
Frontiers in Oncology
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The FAP alpha -activated prodrug Z-GP-DAVLBH inhibits the growth and pulmonary metastasis of osteosarcoma cells by suppressing the AXL pathway
Authors: Geni Ye, Maohua Huang, Yong Li, Jie Ouyang, Minfeng Chen, Qing Wen et al.
Acta Pharmaceutica Sinica B
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IL-1-driven stromal-neutrophil interactions define a subset of patients with inflammatory bowel disease that does not respond to therapies
Authors: M Friedrich, M Pohin, MA Jackson, I Korsunsky, SJ Bullers, K Rue-Albrec, Z Christofor, D Sathananth, T Thomas, R Ravindran, R Tandon, RS Peres, H Sharpe, K Wei, GFM Watts, EH Mann, A Geremia, M Attar, Oxford IBD, Roche Fibr, S McCuaig, L Thomas, E Collantes, HH Uhlig, SN Sansom, A Easton, S Raychaudhu, SP Travis, FM Powrie
Nature Medicine, 2021-10-21;0(0):.
Species: Human
Sample Types: Whole Tissue
Applications: IHC -
Metallothionein 2A Expression in Cancer-Associated Fibroblasts and Cancer Cells Promotes Esophageal Squamous Cell Carcinoma Progression
Authors: M Shimizu, YI Koma, H Sakamoto, S Tsukamoto, Y Kitamura, S Urakami, K Tanigawa, T Kodama, N Higashino, M Nishio, M Shigeoka, Y Kakeji, H Yokozaki
Cancers, 2021-09-10;13(18):.
Species: Human
Sample Types: Cell Lysates
Applications: Western Blot -
T cells drive negative feedback mechanisms in cancer associated fibroblasts, promoting expression of co-inhibitory ligands, CD73 and IL-27 in non-small cell lung cancer
Authors: Richard A O’Connor, Vishwani Chauhan, Layla Mathieson, Helen Titmarsh, Lilian Koppensteiner, Irene Young et al.
OncoImmunology
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Proteomic Analyses of Fibroblast- and Serum-Derived Exosomes Identify QSOX1 as a Marker for Non-invasive Detection of Colorectal Cancer
Authors: N Ganig, F Baenke, ML Thepkayson, K Lin, VS Rao, FC Wong, H Polster, M Schneider, D Helm, M Pecqueux, AM Seifert, L Seifert, J Weitz, NN Rahbari, C Kahlert
Cancers, 2021-03-17;13(6):.
Species: Human
Sample Types: Cell Lysates, Whole Tissue
Applications: IHC, Western Blot -
Extreme Diversity of the Human Vascular Mesenchymal Cell Landscape
Authors: LE Bruijn, BEWM van den Ak, CM van Rhijn, JF Hamming, JHN Lindeman
J Am Heart Assoc, 2020-11-16;9(23):e017094.
Species: Human
Sample Types: Whole Cells, Whole Tissue
Applications: ICC, IHC -
Cancer-associated fibroblasts downregulate type I interferon receptor to stimulate intratumoral stromagenesis
Authors: C Cho, R Mukherjee, AR Peck, Y Sun, N McBrearty, KV Katlinski, J Gui, PK Govindaraj, E Puré, H Rui, SY Fuchs
Oncogene, 2020-08-17;0(0):.
Species: Human
Sample Types: Whole Cells, Whole Tissue
Applications: ICC, IHC -
Overexpression of B7-H3 in alpha -SMA-Positive Fibroblasts Is Associated With Cancer Progression and Survival in Gastric Adenocarcinomas
Authors: Shenghua Zhan, Zhiju Liu, Min Zhang, Tianwei Guo, Qiuying Quan, Lili Huang et al.
Frontiers in Oncology
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Patch repair of deep wounds by mobilized fascia
Authors: D Correa-Gal, D Jiang, S Christ, P Ramesh, H Ye, J Wannemache, S Kalgudde G, Q Yu, M Aichler, A Walch, U Mirastschi, T Volz, Y Rinkevich
Nature, 2019-11-27;0(0):.
Species: Human
Sample Types: Whole Tissue
Applications: IHC -
Highly versatile cancer photoimmunotherapy using photosensitizer-conjugated avidin and biotin-conjugated targeting antibodies
Authors: N Shirasu, H Shibaguchi, H Yamada, M Kuroki, S Yasunaga
Cancer Cell Int., 2019-11-15;19(0):299.
Species: Human
Sample Types: Whole Cells
Applications: Photoimmunotherapy -
A Single-Cell Atlas of the Tumor and Immune Ecosystem of Human Breast Cancer
Authors: Johanna Wagner, Maria Anna Rapsomaniki, Stéphane Chevrier, Tobias Anzeneder, Claus Langwieder, August Dykgers et al.
Cell
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Fibroblast activation protein-positive fibroblasts promote tumor progression through secretion of CCL2 and interleukin-6 in esophageal squamous cell carcinoma
Authors: N Higashino, YI Koma, M Hosono, N Takase, M Okamoto, H Kodaira, M Nishio, M Shigeoka, Y Kakeji, H Yokozaki
Lab. Invest., 2019-01-25;0(0):.
Species: Human
Sample Types: Whole Cells, Whole Tissue
Applications: IHC -
Pro-tumorigenic roles of fibroblast activation protein in cancer: back to the basics
Authors: Ellen Puré, Rachel Blomberg
Oncogene
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Cancer-associated fibroblasts induce antigen-specific deletion of CD8+T Cells to protect tumour cells
Authors: MA Lakins, E Ghorani, H Munir, CP Martins, JD Shields
Nat Commun, 2018-03-05;9(1):948.
Species: Mouse
Sample Types: Whole Cells
Applications: Flow Cytometry -
Tumor-targeting efficacy of a BF211 prodrug through hydrolysis by fibroblast activation protein-?
Authors: XP Chai, GL Sun, YF Fang, LH Hu, X Liu, XW Zhang
Acta Pharmacol. Sin., 2017-11-09;0(0):.
Species: Mouse
Sample Types: Tissue Homogenates
Applications: Western Blot -
Fibroblast activation protein-alpha promotes the growth and migration of lung cancer cells via the PI3K and sonic hedgehog pathways
Authors: Jun Jia, Tracey A. Martin, Lin Ye, Lin Meng, Nan Xia, Wen G. Jiang et al.
International Journal of Molecular Medicine
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Fibroblast activation protein augments progression and metastasis of pancreatic ductal adenocarcinoma
Authors: A Lo, CP Li, EL Buza, R Blomberg, P Govindaraj, D Avery, J Monslow, M Hsiao, E Puré
JCI Insight, 2017-10-05;2(19):.
Species: Human
Sample Types: Whole Tissue
Applications: IHC-P -
Adrenergic-mediated increases in INHBA drive CAF phenotype and collagens
Authors: AS Nagaraja, RL Dood, G Armaiz-Pen, Y Kang, SY Wu, JK Allen, NB Jennings, LS Mangala, S Pradeep, Y Lyons, M Haemmerle, KM Gharpure, NC Sadaoui, C Rodriguez-, C Ivan, Y Wang, K Baggerly, P Ram, G Lopez-Bere, J Liu, SC Mok, L Cohen, SK Lutgendorf, SW Cole, AK Sood
JCI Insight, 2017-08-17;2(16):.
Species: Mouse
Sample Types: Whole Tissue
Applications: IHC -
A synthetic urinary probe-coated nanoparticles sensitive to fibroblast activation protein ? for solid tumor diagnosis
Authors: X Feng, Q Wang, Y Liao, X Zhou, Y Wang, W Liu, G Zhang
Int J Nanomedicine, 2017-07-27;12(0):5359-5372.
Species: Human, Mouse
Sample Types: Cell Lysates
Applications: Western Blot -
GM-CSF Mediates Mesenchymal–Epithelial Cross-talk in Pancreatic Cancer
Authors: Meghna Waghray, Malica Yalamanchili, Michele Dziubinski, Mina Zeinali, Marguerite Erkkinen, Huibin Yang et al.
Cancer Discovery
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Fibroblast Activation Protein (FAP) Accelerates Collagen Degradation and Clearance from Lungs in Mice
Authors: MH Fan, Q Zhu, HH Li, HJ Ra, S Majumdar, DL Gulick, JA Jerome, DH Madsen, M Christofid, DW Speicher, WW Bachovchin, C Feghali-Bo, E Puré
J. Biol. Chem., 2015-12-09;291(15):8070-89.
Species: Mouse
Sample Types: Tissue Homogenates, Whole Tissue
Applications: IHC, Immunoprecipitation, Western Blot -
miR-142-5p and miR-130a-3p are regulated by IL-4 and IL-13 and control profibrogenic macrophage program
Authors: Shicheng Su, Qiyi Zhao, Chonghua He, Di Huang, Jiang Liu, Fei Chen et al.
Nature Communications
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Antitumor effects of chimeric receptor engineered human T cells directed to tumor stroma.
Authors: Kakarla S, Chow K, Mata M, Shaffer D, Song X, Wu M, Liu H, Wang L, Rowley D, Pfizenmaier K, Gottschalk S
Mol Ther, 2013-06-04;21(8):1611-20.
Species: Human
Sample Types: Whole Cells
Applications: CAR-T (Flow Cytometry), CAR-T (Flow Cytomety) -
Depletion of stromal cells expressing fibroblast activation protein-alpha from skeletal muscle and bone marrow results in cachexia and anemia
Authors: Edward W. Roberts, Andrew Deonarine, James O. Jones, Alice E. Denton, Christine Feig, Scott K. Lyons et al.
Journal of Experimental Medicine
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Suppression of antitumor immunity by stromal cells expressing fibroblast activation protein-alpha.
Authors: Kraman M, Bambrough P, Arnold J, Roberts E, Magiera L, Jones J, Gopinathan A, Tuveson D, Fearon D
Science, 2010-11-05;330(6005):827-30.
Species: Mouse
Sample Types: Whole Cells, Whole Tissue
Applications: Flow Cytometry, IHC -
Macrophages orchestrate the expansion of a proangiogenic perivascular niche during cancer progression
Authors: JW Opzoomer, JE Anstee, I Dean, EJ Hill, I Bouybayoun, J Caron, T Muliaditan, P Gordon, D Sosnowska, R Nuamah, SE Pinder, T Ng, F Dazzi, S Kordasti, DR Withers, T Lawrence, JN Arnold
Science Advances, 2021-11-03;7(45):eabg9518.
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