{"id":11514,"date":"2025-03-17T11:57:34","date_gmt":"2025-03-17T11:57:34","guid":{"rendered":"https:\/\/www.caltagmedsystems.co.uk\/information\/?p=11514"},"modified":"2025-03-18T15:53:59","modified_gmt":"2025-03-18T15:53:59","slug":"car-t-target-antigens","status":"publish","type":"post","link":"https:\/\/www.caltagmedsystems.co.uk\/information\/car-t-target-antigens\/","title":{"rendered":"KACTUS: CAR-T Target Antigens"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Background<\/h2>\n\n\n\n<p>Chimeric Antigen Receptor T-Cell Immunotherapy (CAR-T) is a novel immunotherapy that has achieved success in the treatment of various hematological malignancies.<\/p>\n\n\n\n<p>The concept behind CAR-T therapy is to empower the immune system to attack cancer cells. In short, a patient&#8217;s T cells are isolated and genetically engineered to express a chimeric antigen receptor (CAR), which recognises specific tumour-associated antigens, such as\u00a0CD19, a cell surface protein highly expressed on malignant B cells. Upon recognising the antigen on tumour cells, CAR-T cells initiate a series of immune responses to kill the tumour cells. With an increasing number of CAR-T drugs being approved for marketing (such as Kymriah and Yescarta), CAR-T cell therapy has entered a period of rapid development, demonstrating immense potential.<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/kactusbio.com\/cdn\/shop\/files\/CAR-T_Targets_2.png?v=1719435664&amp;width=1000\" alt=\"\" style=\"width:303px;height:auto\"\/><figcaption class=\"wp-element-caption\">CAR-T cell binding tumors mechanism.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading clear\">Comprehensive Catalog of CAR-T Target Proteins<\/h2>\n\n\n\n<p>Leveraging their unique\u00a0<a href=\"https:\/\/kactusbio.com\/pages\/sams\" target=\"_blank\" rel=\"noreferrer noopener\">SAMS\u2122 protein engineering and expression platform<\/a>, KACTUS has developed a series of high-quality\u00a0CAR-T target protein products, covering a wide range of popular targets such as\u00a0CD19,\u00a0BCMA, and\u00a0MSLN. They also offer various modifications including site-specific labelling, fluorescent labelling, and biotinylation, flexibly meeting diverse research and development needs such as CAR-T affinity assays. If you don&#8217;t see what you&#8217;re looking for in their catalog, you can always\u00a0request a custom protein.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Product Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HEK293 Expression<\/li>\n\n\n\n<li>His-Avi,\u00a0hFc,\u00a0mFc,\u00a0His,\u00a0hFc-Avi, etc. protein tags<\/li>\n\n\n\n<li>Bioactivity verified (ELISA &amp; SPR)<\/li>\n\n\n\n<li>High Purity<\/li>\n\n\n\n<li>Human,\u00a0Mouse,\u00a0Cynomolgus,\u00a0Rhesus Macaque,\u00a0Rat<\/li>\n\n\n\n<li>Biotinylated Proteins<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Product Applications<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CAR-T immunity studies<\/li>\n\n\n\n<li>Antibody screening (such as scFv, single domain antibody, etc.)<\/li>\n\n\n\n<li>CAR-T affinity studies<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Product Validation Data<\/h2>\n\n\n\n<p>KACTUS offers a wide range of fluorescent-labelled target proteins that streamline CAR detection by eliminating the need for secondary antibodies, reducing background staining, and increasing efficiency. Their portfolio includes popular target antigens relevant to current CAR-T research, all with high bioactivity, uniformity, and batch-to-batch consistency.<\/p>\n\n\n\n<p>Leveraging their advanced\u00a0protein expression platform, KACTUS also provides a comprehensive solution for\u00a0protein customisation. They offer various modifications such as site-specific labelling, fluorescent labeling (FITC,\u00a0PE, APC, and others), and\u00a0biotinylation, to meet various research requirements such as CAR-T affinity testing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FITC-Compatible Human CD19<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"330\" src=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-1024x330.png\" alt=\"\" class=\"wp-image-11523\" srcset=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-1024x330.png 1024w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-300x97.png 300w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-768x247.png 768w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-1536x495.png 1536w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-332-2048x660.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><a href=\"https:\/\/kactusbio.com\/products\/fitc-compatible-human-cd19-protein-cd1-hm119f\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>FACS data demonstrating that 100 \u00b5l of\u00a0<a href=\"https:\/\/www.caltagmedsystems.co.uk\/pricing_ordering\/product_detail.php?CI_ID=1791261&amp;group_1=All&amp;group_2=All&amp;supplier=154&amp;clonality=All&amp;host=All&amp;species=All&amp;applications=All&amp;regulatory_status=All&amp;searchwords=KAC-CD1-HM119F\">FITC-Compatible Human CD19 (His Tag)<\/a>\u00a0(10 \u00b5g\/ml) can specifically bind to 1\u00d710<sup>6<\/sup>\u00a0Anti-CD19 CAR T cells, resulting in a positive detection rate greater than 96%. FITC-labeled irrelevant protein (100 \u00b5l, 10 \u00b5g\/ml) was used as a negative control.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PE-Labeled Human EGFRVIII<a href=\"https:\/\/kactusbio.com\/products\/pe-labeled-human-egfrviii-protein-eg8-hm154p\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"331\" src=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-333-1024x331.png\" alt=\"\" class=\"wp-image-11525\" srcset=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-333-1024x331.png 1024w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-333-300x97.png 300w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-333-768x248.png 768w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-333.png 1091w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>FACS analysis of Anti-EGFRVIII CAR Expression. 293T cells were transfected with anti-EGFRVIII-scFv and His tag. Cells were incubated with 5 \u00b5g\/ml\u00a0<a href=\"https:\/\/www.caltagmedsystems.co.uk\/pricing_ordering\/product_detail.php?CI_ID=1790459&amp;group_1=All&amp;group_2=All&amp;supplier=154&amp;clonality=All&amp;host=All&amp;species=All&amp;applications=All&amp;regulatory_status=All&amp;searchwords=KAC-EG8-HM154P\">PE-Labeled Human EGFRVIII (His-Avi Tag)<\/a>\u00a0and PE-labelled protein control. Non-transfected 293T cells and PE-labelled protein control were used as negative controls. The PE-labeled Human EGFR VIII specifically binds to Anti-EGFR VIII-CAR T cells, with a positive detection rate of over 99%.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Biotinylated Human MSLN\/Mesothelin<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"341\" src=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334-1024x341.png\" alt=\"\" class=\"wp-image-11526\" srcset=\"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334-1024x341.png 1024w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334-300x100.png 300w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334-768x256.png 768w, https:\/\/www.caltagmedsystems.co.uk\/information\/wp-content\/uploads\/image-334.png 1152w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/kactusbio.com\/products\/biotinylated-human-msln-mesothelin-protein-msl-hm580b\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>FACS analysis of Anti-MSLN-CAR expression. 293T cells were transfected with anti-MSLN-scFv and Fc tag. These cells were stained with 5 \u00b5g\/ml FITC-Labeled Human MSLN (296-580), Fc Tag, and a FITC-labeled protein control. Non-transfected 293T cells and FITC-labeled protein control were used as negative controls. FITC-labeled SA was used to confirm that\u00a0<a href=\"https:\/\/www.caltagmedsystems.co.uk\/pricing_ordering\/product_detail.php?CI_ID=1791589&amp;group_1=All&amp;group_2=All&amp;supplier=154&amp;clonality=All&amp;host=All&amp;species=All&amp;applications=All&amp;regulatory_status=All&amp;searchwords=KAC-MSL-HM580B\">Biotinylated Human MSLN (hFc-Avi Tag)<\/a>\u00a0can specifically bind to Anti-MSLN-CAR 293T cells, resulting in a positive rate greater than 99%.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-alpha-channel-opacity has-background\" style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--50);background-color:#21318f;color:#21318f\"\/>\n\n\n\n<p><a href=\"https:\/\/www.caltagmedsystems.co.uk\/\">Caltag Medsystems&nbsp;<\/a>is the distributor of&nbsp;KACTUS products in the UK and Ireland. If you have any questions about these products, please&nbsp;<a href=\"https:\/\/www.caltagmedsystems.co.uk\/contact.php\">contact us<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>KACTUS has developed a series of high-quality\u00a0CAR-T target protein products, covering a wide range of popular targets such as\u00a0CD19,\u00a0BCMA, and\u00a0MSLN.<\/p>\n","protected":false},"author":13,"featured_media":11448,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[722,1,641],"tags":[475,976,58],"class_list":["post-11514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cell-and-gene-therapy","category-general-information","category-recombinant-proteins","tag-car-t","tag-kactus","tag-recombinant-proteins"],"_links":{"self":[{"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/posts\/11514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/comments?post=11514"}],"version-history":[{"count":14,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/posts\/11514\/revisions"}],"predecessor-version":[{"id":11689,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/posts\/11514\/revisions\/11689"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/media\/11448"}],"wp:attachment":[{"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/media?parent=11514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/categories?post=11514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.caltagmedsystems.co.uk\/information\/wp-json\/wp\/v2\/tags?post=11514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}