VivoCAR™ Anti-AFP (A18) CAR mRNA-tLNP, T Cell Targeting (XS-0126-YX7)

Name: VivoCAR™ Anti-AFP (A18) CAR mRNA-tLNP, T Cell Targeting
SKU: XS-0126-YX7
Rating: 5 (1 reviews)

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All products and services are For Research Use Only and CANNOT be used in the treatment or diagnosis of disease.

VivoCAR™ Anti-AFP (A18) CAR mRNA-tLNP, T Cell Targeting utilizes the A18 clone to offer a distinct binding kinetic for HLA-presented AFP fragments. The platform features an adaptable conjugation system, enabling the use of Anti-CD5 or Anti-CD3 antibodies to selectively reprogram T cells in vivo . This product is essential for studying the influence of CAR-T cell subset distribution on the clearance of alpha-fetoprotein-positive malignancies. Its significance stems from the non-integrating mRNA delivery, which provides a potent but finite therapeutic window. By allowing for customizable antibody-mediated targeting, it offers researchers a powerful means to optimize the delivery of synthetic immunity against internal tumor antigens.

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CAR Information

Target Species
Human

Clone
A18

Host
Lama pacos

CAR Construction
CD28-41BB-CD3z

CAR Generation
Third

CAR Signaling Description
This CAR construct features a CD28-4-1BB-CD3ζ signaling cassette. The design integrates a CD28 co-stimulatory domain to support strong initial T-cell activation, paired with a 4-1BB domain to promote long-term persistence, metabolic fitness, and resistance to exhaustion. The intracellular CD3ζ chain delivers the primary T-cell receptor signal, initiating robust effector functions such as rapid cytokine release (e.g., IFN-γ) upon target engagement.

CAR mRNA Properties

Cap
Cap 1

PolyA
Segmented PolyA

Product Type
CAR mRNA LNP

Lipid Mixture
Utilizes a proprietary lipid platform composed of ionizable lipid, cholesterol, helper phospholipid, and PEG-lipid.

Concentration
Lot specific

Buffer
The formulation is buffered in either Phosphate-Buffered Saline (PBS) or a citrate buffer containing 10% sucrose to maintain lipid nanoparticle stability and prevent aggregation during freeze-thaw cycles.

Storage
Maintain at -80°C. Avoid repeated freeze-thaw cycles to preserve mRNA integrity and LNP size distribution.

Handling
Thaw slowly on ice prior to use. Avoid vigorous vortexing; gently invert the vial to mix in order to preserve LNP integrity.

mRNA Quality Control

OD260/280
PASS

Agarose Gel Mobility
PASS

IVT Vector Sequencing
PASS

IVT Vector Enzyme Digestion
PASS

mRNA Transfection Efficiency
PASS

CAR Expression after mRNA Transfection
PASS

Target Information

Target
AFP

Gene Name
AFP

Full Name
Alpha Fetoprotein

Introduction
Alpha-Fetoprotein (AFP) is a classic oncofetal antigen primarily expressed in the fetal liver but highly upregulated in Hepatocellular Carcinoma (HCC) and certain germ cell tumors. While typically a secreted protein, AFP peptides are presented on the cell surface via HLA complexes, making AFP-specific CAR-T cells (TCR-like CARs) essential for targeting the intracellular machinery of liver cancer. Targeting AFP allows for the selective destruction of HCC cells, addressing one of the most treatment-resistant solid tumor types.

Related Diseases
Hepatocellular Carcinoma (HCC), Testicular Cancer (Non-seminomatous germ cell tumors), Ovarian Cancer

Gene ID
942

UniProt ID
P02771

Alternative Names
Alpha Fetoprotein; Alpha-1-Fetoprotein; Alpha-Fetoglobulin; HPAFP; Alpha-Fetoprotein; AFPD; FETA;

Sub CAT.	Product Name	T Cell Targeting	Ligand Type	Targeting Specificity	Conjugation Density	in vivo Stability
XS-0126-YX7-1	VivoCAR™ aCD7/tLNP-Anti-AFP (A18) CAR mRNA	CD7	Anti-CD7 antibody	Broadly targets the CD7 antigen expressed on the majority of peripheral T cells and Natural Killer (NK) cells. Leveraging CD7’s rapid receptor-mediated internalization kinetics, this ligand achieves the highest mRNA delivery efficiency among T-cell targets, facilitating potent in vivo CAR engineering even at lower lipid doses.	Optimized to exploit the high-turnover rate of the CD7 receptor. The conjugation density is precisely calibrated to trigger immediate "trigger-like" endocytosis upon binding, significantly outperforming other pan-T markers in cargo uptake while maintaining rigorous specificity within the PBMC microenvironment.	Engineered for high serum resilience and rapid escape from hepatic sequestration. Its superior internalization speed ensures that the mRNA-LNP complex is internalized by target T/NK cells shortly after contact, minimizing prolonged exposure to extracellular nucleases and systemic clearance mechanisms.
XS-0126-YX7-2	VivoCAR™ aCD3/tLNP-Anti-AFP (A18) CAR mRNA	CD3	Anti-CD3 antibody	Highly specific for the CD3 complex, facilitating pan-T cell mRNA delivery and enabling the simultaneous generation of helper (CD4+) and cytotoxic (CD8+) CAR-expressing cells.	Optimized to balance efficient cellular internalization with minimal off-target activation, achieving an ideal equilibrium for targeted delivery without inducing aberrant T-cell stimulation.	Ensures durable circulation and precise accumulation in lymphoid organs, particularly lymph nodes and the spleen, to facilitate effective engagement with resident T cells.
XS-0126-YX7-3	VivoCAR™ aCD2/tLNP-Anti-AFP (A18) CAR mRNA	CD2	Anti-CD2 antibody	Targets the CD2 (LFA-2) adhesion molecule, encompassing nearly all mature T cells and NK cells. By utilizing the natural adhesive properties of CD2, this ligand promotes the formation of a stable "immune synapse-like" interface between the LNP and the target cell, enhancing membrane proximity for cargo transfer.	Developed with a high-density conjugation strategy to capitalize on the high copy number of CD2 on the lymphocyte surface. While the endocytic rate is slower than CD7, the increased contact stability ensures robust total uptake and reduces non-specific interactions with off-target tissues like the liver or lungs.	Exhibits robust ligand stability and resistance to opsonization in the bloodstream. The antibody scaffold is modified to extend half-life, ensuring that the complexes remain bioactive until they achieve targeted infiltration into lymphoid organs and inflammatory tumor sites.
XS-0126-YX7-4	VivoCAR™ aCD5/tLNP-Anti-AFP (A18) CAR mRNA	CD5	Anti-CD5 antibody	Directs mRNA-LNP complexes to CD5+ populations, primarily targeting the vast majority of mature T cells (both helper and cytotoxic) to create a multi-lineage in vivo CAR response.	Fine-tuned to achieve an optimal balance between highly efficient mRNA delivery into T-cells and the prevention of fratricidal CAR-T cell activity.	Engineered for sustained circulatory persistence, enabling prolonged navigation and targeted infiltration of malignant T-cell niches.
XS-0126-YX7-5	VivoCAR™ aCD4/tLNP-Anti-AFP (A18) CAR mRNA	CD4	Anti-CD4 antibody	Exclusively targets the CD4+ helper T cell subset. This specificity is designed to generate CAR-expressing cells with long-lived memory characteristics and immunomodulatory functions, providing a supportive cytokine microenvironment for a sustained and coordinated anti-tumor response.	The ligand load is fine-tuned to balance binding avidity with the moderate internalization rate of the CD4 receptor. This ensures efficient entry without inducing excessive signaling that could lead to premature T-cell exhaustion or unintended phenotypic shifts during the transfection process.	Demonstrates exceptional structural integrity during systemic circulation. It exhibits a favorable pharmacokinetic profile that allows for prolonged persistence in the blood, ensuring precise homing and accumulation within the paracortical areas of lymph nodes where CD4+ cells are densely resident.
XS-0126-YX7-6	VivoCAR™ aCD8/tLNP-Anti-AFP (A18) CAR mRNA	CD8	Anti-CD8 antibody	Highly specific for CD8+ T cells, enabling targeted mRNA delivery via antibody-receptor mediated endocytosis for in situ reprogramming.	The conjugation density of the CD8 antibody is optimized to ensure LNP internalization occurs specifically upon binding to the CD8 antigen, thereby preventing non-specific uptake by off-target cells such as hepatocytes or other hematopoietic lineages.	Exhibits high ligand stability in circulation, ensuring effective targeted accumulation in lymphoid organs such as the spleen and bone marrow.

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For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.