RNP-Mediated Gene Editing Services

Ribonucleoprotein (RNP)-mediated gene editing represents a highly efficient, rapid, and low-off-target genome editing strategy. Alfa Cytology provides gene editing services based on pre-assembled Cas9 protein:sgRNA complexes (RNPs), which are delivered directly into cells to enable rapid editing while significantly reducing off-target effects. This approach is particularly well-suited for primary cells and sensitive cell lines, offering a safe and efficient editing solution for gene function studies and cell therapy development.

Introduction to RNP-Mediated Gene Editing

Ribonucleoprotein (RNP)-mediated gene editing involves the direct intracellular delivery of pre-assembled Cas9 protein–sgRNA complexes, bypassing the need for plasmid- or viral vector-based expression of Cas9 and sgRNA. This approach offers several distinct advantages over conventional delivery systems:

• Rapid onset of activity – The pre-assembled RNP complex is enzymatically active immediately upon cellular entry, eliminating the lag time required for transcription and translation associated with plasmid or viral delivery.
• Minimized off-target effects – Both the Cas9 protein and the sgRNA are subject to rapid intracellular degradation, substantially reducing the duration of exposure of the editing machinery to the genome and thereby limiting the window for potential off-target cleavage events.
• Reduced immunogenicity and toxicity – RNP delivery avoids the use of foreign nucleic acids and viral vectors, minimizing cellular stress responses and immune activation that are often associated with long-term expression systems.
• Exceptional compatibility with challenging cell types – The direct protein-based delivery mechanism makes RNP editing particularly well-suited for primary cells, stem cells, and other sensitive or hard-to-transfect cell lines that may suffer from low efficiency or high cytotoxicity under conventional transfection methods.

Fig. 1 Aptamer-modified lipid nanoparticles for nuclear-targeted CRISPR/Cas RNP delivery in breast cancer. (Xu Z, et al.; 2026)

Our Services

Thanks to our deep expertise in CRISPR gene editing and RNP delivery, Alfa Cytology provides end-to-end RNP-mediated gene editing services tailored to meet your specific research needs. Ribonucleoprotein (RNP) editing involves the direct delivery of pre-assembled Cas9 protein:sgRNA complexes into cells, enabling rapid genome editing while significantly minimizing off-target effects. This approach is particularly well-suited for primary cells, stem cells, and other cell types that are sensitive to plasmid transfection or viral transduction.

Standard RNP Gene Editing Services . Our standard service package offers a complete RNP-based gene editing solution covering both knockout and knock-in applications across a variety of cell types, with particular emphasis on primary cells, stem cells, and other cell lines that are sensitive to plasmid transfection or viral transduction. Service include:

• Efficient sgRNA design and synthesis targeting your gene of interest.
• Cas9 protein expression, purification, and pre-assembly of RNP complexes.
• Optimized delivery protocols (electroporation, lipid-based transfection, etc.) for efficient RNP introduction.
• Editing efficiency assessment (T7EI assay or Sanger sequencing).
• Comprehensive validation report documenting all editing outcomes.

Cell Line RNP Editing Services

We offer RNP-based gene knockout and knock-in services across a broad spectrum of cell types, including conventional cell lines as well as primary cells, stem cells, T cells, NK cells, and other therapeutically relevant cell types that are sensitive to editing conditions.

For CAR-T, CAR-NK, and other cell therapy development programs, we offer optimized RNP delivery conditions (gentle electroporation protocols) that maximize editing efficiency while preserving cell viability and functionality, suitable for gene correction, gene knockout, and other application scenarios.

Mouse Model RNP Editing Services

Based on RNP delivery technology, we provide gene knockout and knock-in services in mouse models to support in vivo functional studies and disease model generation.

Applications of RNP-Mediated Gene Editing Services

Primary Cell Gene Editing

RNP delivery represents the preferred strategy for gene editing in primary cells—including T cells, NK cells, and hematopoietic stem cells, providing a safe and efficient editing tool for cell therapy development and gene repair research.

Therapeutic Cell Product Development

In the development of cell therapy products such as CAR-T and TCR-T, RNP-mediated gene editing enables efficient genome modification while preserving cell viability and function, meeting the safety requirements for clinical applications.

Sensitive Cell Line Editing

For cell lines that are sensitive to plasmid transfection or viral transduction, RNP delivery offers a low-toxicity, high-efficiency alternative for gene editing.

Rapid Gene Function Validation

The immediate activity and rapid degradation profile of RNP editing make it an ideal tool for rapid gene function validation, particularly suited for experimental designs requiring transient gene perturbation.

Workflow of RNP-Mediated Gene Editing Services

Experimental Design and Consultation

Collaborate closely with clients to define target genes, editing types (knockout/knock-in), cell types, and project requirements. Design and evaluate multiple sgRNA sequences.

RNP Complex Preparation

Synthesize sgRNA and purify Cas9 protein. Pre-assemble Cas9:sgRNA RNP complexes under optimized conditions to ensure complex activity and stability.

RNP Delivery and Editing

Deliver RNP complexes into target cells using optimized electroporation or lipid-based transfection protocols. For knock-in applications, co-deliver ssODN donor templates.

Cell Culture and Monoclonal Selection

Expand edited cells under optimized culture conditions and isolate single-cell-derived clones via limiting dilution or single-cell sorting. Following expansion, a portion of cells is harvested for validation, while the remainder is cryopreserved for future use.

Editing Validation

Harvest edited cells, extract genomic DNA, and assess editing efficiency (T7EI assay or Sanger sequencing). Provide a comprehensive validation report documenting all editing outcomes.

Service Highlights

RNP-mediated gene editing provides a safe, efficient, and low-off-target editing solution for primary cells and sensitive cell lines. Alfa Cytology's RNP-mediated gene editing services combine optimized delivery protocols and rigorous validation systems to deliver high-quality edited models, supporting a broad range of applications from basic research to cell therapy development. Please do not hesitate to contact us to learn how our RNP-mediated gene editing services can meet your specific research needs.

For research use only.