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mRNA Modification Services

High-Performance Modified mRNA for Therapeutic, Vaccine & Research Applications

Messenger RNA (mRNA) has rapidly evolved from a research reagent to one of the most versatile therapeutic modalities in modern biotechnology. Achieving optimal stability, translation efficiency, and immunogenicity control requires advanced chemical modification strategies—executed with precision, consistency, and regulatory awareness. At BOC Sciences, we provide end-to-end mRNA modification services designed for pharmaceutical companies, biotechnology innovators, CDMOs, and academic research teams. Our platform supports projects from early discovery through pre-clinical development, offering tailored chemical modifications that enhance mRNA performance across a wide spectrum of applications.

mRNA Modification Methods mRNA Modification Methods

Why mRNA Modification Matters?

Unmodified mRNA can trigger innate immune responses, degrade rapidly, and produce limited protein expression. Strategic modification of nucleotides, caps, and untranslated regions (UTRs) helps solve these challenges by enabling:

Stability Enhancement: Modified nucleosides and optimized UTRs significantly improve mRNA half-life and reduce degradation.

Immunogenicity Control: Chemical modifications reduce innate immune activation while maintaining desired adaptive responses.

Translation Efficiency: Cap1 structures, optimized UTRs, and tailored Poly(A) tails boost protein expression levels.

Safety Profile: Non-integrating, transient expression minimizes genomic risk and enhances therapeutic safety.

Therapeutic Performance: Improved stability and expression profiles enable reliable in vivo efficacy for vaccines and mRNA therapeutics.

Our platform integrates the most advanced mRNA modification chemistries used in next-generation vaccines, cell therapies, gene therapies, and protein-replacement applications.

Our mRNA Modification Capabilities

Our platform offers a complete suite of advanced mRNA modification solutions engineered to optimize expression, stability, and therapeutic performance. Each capability can be customized to match your research, preclinical, or translational development goals.

Nucleoside Modification

Chemical modification of nucleosides is central to regulating immunogenicity and enhancing mRNA stability.

Available Modified Nucleotides

  • N1-methyl-pseudouridine (m1Ψ) — Gold standard for reducing innate immune signaling and boosting translation.
  • Pseudouridine (Ψ) — Enhances stability with moderate immunogenicity reduction.
  • 5-methyl-cytidine (m5C) — Improves mRNA stability and reduces TLR activation.
  • Custom nucleotide mixes — Tailored ratios for fine-tuning immune responses and expression profiles.

Key Advantages

  • Lower activation of TLR7/8 and PKR pathways
  • Increased mRNA half-life and translational efficiency
  • Enhanced expression for vaccines, gene editing, and cell therapy

Cap Structure Engineering

The 5' cap is essential for ribosome recognition, protection from exonucleases, and efficient translation.

Cap Options

  • Cap0 — Basic eukaryotic cap structure for standard expression.
  • Cap1 — Industry-preferred for therapeutic mRNA due to reduced immunogenicity.
  • ARCA (Anti-Reverse Cap Analog) — Ensures correct orientation and improves translation.

Key Advantages

  • 95% capping efficiency
  • Improved ribosomal binding and translation initiation
  • Reduced non-specific immune activation

Poly(A) Tail Optimization

Poly(A) tail length and structure have major effects on translation and stability.

Options Available

  • Fixed-length tails (20-300 nt) — Standard lengths or fully customized.
  • Template-encoded Poly(A) — Highly accurate for consistent production.
  • Enzymatic extension — Flexible option for specialized constructs.

Benefits

  • Stabilizes mRNA against deadenylation
  • Enhances ribosomal recruitment
  • Customizable to match in vitro, in vivo, or therapeutic requirements

UTR Engineering & Structural Optimization

Untranslated regions determine mRNA's translation dynamics, cellular localization, and longevity.

Optimization Services

  • 5'UTR selection and design — Improve ribosome loading and translation speed.
  • 3'UTR optimization — Increase stability and fine-tune expression duration.
  • Codon optimization — Reduce secondary structures and maximize protein yield.
  • ORF engineering — Adjust GC content and minimize immunogenic motifs.
  • Secondary structure minimization — Prevents unwanted hairpins that hinder translation.

Benefits

  • Enhanced expression efficiency
  • Improved consistency across cell types
  • Greater predictability in therapeutic contexts

IVT with Integrated Modifications

We offer high-performance IVT (In Vitro Transcription) synthesis workflows designed to incorporate all selected chemical and structural modifications directly into the transcription process.

Services Provided

  • Enzymatic high-yield IVT synthesis using optimized polymerases for efficient transcription.
  • Controlled incorporation of modified nucleotides to achieve desired immunogenicity and translational profiles.
  • Co-transcriptional capping options including Cap0, Cap1, ARCA, and advanced cap analog technologies.
  • Template preparation and optimization, including linearization, purification, and sequence fidelity checks.
  • Scalable production formats suitable for microgram-level R&D batches or larger preclinical runs.
  • Process customization for expression level tuning, reduced dsRNA formation, or application-specific requirements.

Benefits

  • Ensures consistent integration of selected modifications into the final mRNA.
  • Supports efficient expression and reduced innate immune activation.
  • Offers flexibility for scale-up as projects advance toward preclinical development.

Purification & Quality Control

Our purification and QC workflows ensure that each mRNA product meets rigorous standards for research and therapeutic development.

Services Provided

  • Advanced purification methods, including chromatography-based workflows and enzymatic refinement.
  • Removal of dsRNA contaminants, host enzyme residues, and transcription byproducts.
  • Integrity validation of the full-length transcript using electrophoresis and fragment analysis.
  • Capping structure verification to confirm orientation and efficiency.
  • Poly(A) tail analysis to ensure proper length and uniformity.
  • Comprehensive QC panel, covering purity, identity, integrity, and endotoxin assessment.
  • Custom QC packages available for in vivo, preclinical, or regulatory-aligned projects.

Benefits

  • Delivers high-quality, consistent mRNA suitable for sensitive biological systems.
  • Enhances reproducibility in downstream applications.
  • Provides confidence for researchers and developers working in therapeutic or translational programs.

Custom Formulation & Delivery Format

We provide formulation and packaging options tailored to your workflow, stability requirements, and downstream application.

Services Provided

  • RNase-free liquid formulations using application-specific buffer systems.
  • Lyophilized mRNA formats for extended storage stability.
  • Custom concentration and volume options based on experimental design.
  • Compatibility testing with transfection reagents, electroporation systems, or LNP formulation workflows.
  • Vialing and packaging customization to match your lab or manufacturing handling needs.
  • Guidance on storage, thawing, and usage conditions optimized for mRNA integrity.

Benefits

  • Ready-to-use materials that fit seamlessly into in vitro and in vivo workflows.
  • Extended stability under various storage conditions.
  • Improved efficiency for teams integrating mRNA into therapeutic development pipelines.
Capability Options Available Benefits Typical Use Cases
Nucleoside Modificationm1Ψ, Ψ, m5C, etc.Reduce immunogenicityVaccines, gene editing
Cap StructureCap0, Cap1, ARCAImprove translation efficiencyTherapeutics
Poly(A) Tail20–300 nt, custom lengthmRNA stabilityCell therapy
UTR EngineeringOptimized 5'UTR/3'UTRHigher protein expressionVaccines, research

Project Workflow & Delivery Process

1Consultation & Project Definition

Assess your target application, regulatory needs, and modification strategy.

Align on technical specifications, timelines, and deliverable formats.

2Sequence Optimization & Modification Design

Enhance ORF, UTRs, poly(A) length, and codon usage based on your objectives.

Select appropriate nucleoside, cap, and structural modifications for performance.

3IVT Synthesis & Incorporation of Modifications

Execute in vitro transcription using high-purity enzymes and modified nucleotides.

Integrate structural elements (Cap1, modified bases, optimized UTRs) at scale.

4mRNA Purification & Quality Assessment

Purify using chromatography-based or enzymatic workflows to minimize dsRNA and impurities.

Perform full QC including purity, capping efficiency, integrity, endotoxin, and sequence validation.

5Final Formulation & Packaging

Deliver the product in RNase-free solution or lyophilized format, with customized buffers if required.

Package according to your storage, stability, and downstream application needs.

6Delivery & Scientific Support

Provide certificate of analysis (CoA), documentation, and technical summaries.

Offer ongoing consultation for experimental setup, optimization, and scale-up planning.

Why Partner With Us

Choosing the right RNA development partner is essential for accelerating discovery, de-risking development, and ensuring consistent performance across research and therapeutic applications. Our team delivers scientific rigor, operational reliability, and deep domain expertise across every stage of mRNA design and production.

  • Pharmaceutical-Grade Expertise: Built for biotech and pharma teams requiring reliability, scalability, and regulatory-ready documentation.
  • Customization at Every Level: From nucleotide chemistry to delivery formats, every element can be adapted to your project.
  • Rapid Turnaround Times: We combine industrial workflows with agile biotech execution to deliver mRNA in timelines suitable for fast-moving R&D.
  • Scalable Production Pathway: From R&D to pilot-scale and GMP collaboration—your project can grow with us.
  • Dedicated Scientific Support: Our mRNA specialists provide consultation on chemistry options, optimization strategies, and downstream use.
  • High-Quality Analytical Capabilities: We provide extensive QC testing to ensure purity, integrity, and performance—meeting expectations for in vitro, in vivo, and translational research.
  • Proven Success Across Diverse Applications: Our modified mRNA has been successfully used in vaccine programs, gene editing workflows, cell engineering, regenerative medicine studies, and protein expression research.
  • Flexible Engagement Models: Whether you require end-to-end development or isolated services (e.g., modification only, QC only, formulation only), we provide engagement models that fit your internal workflows.

Applications of Modified mRNA

Modified mRNA has enabled a new generation of therapeutic, vaccine, and cell-engineering technologies. Through optimized nucleotide chemistry, controlled immunogenicity, and improved translation efficiency, modified mRNA offers a highly flexible platform suitable for diverse pharmaceutical and research applications. Below, we detail each major application area.

Therapeutic Protein Expression

Modified mRNA provides a safe, transient, non-integrating method for producing functional proteins directly inside target tissues.

Protein replacement therapy

Correcting genetic deficiencies (e.g., metabolic enzyme disorders)

Delivering secreted therapeutic proteins without DNA-based vectors

Regenerative medicine

Driving in vivo expression of growth factors, cytokines, or reprogramming factors

Supporting tissue repair in cardiac, hepatic, and musculoskeletal diseases

Gene editing cargos

High-efficiency, short-lived expression of Cas9, Cas12a, or base editors

Reduces long-term risks associated with DNA vectors

Why Modified mRNA Matters

N1-methyl-pseudouridine reduces innate immune sensing

Cap1 structures improve protein yield

Optimized 5'/3' UTRs enhance durability and translation

Superior safety profile compared with DNA- or viral-based delivery

mRNA Vaccines

(Infectious Disease & Oncology)

Modified mRNA has become the backbone of next-generation vaccine design due to its rapid development speed, adaptability, and potent immune induction.

Infectious Disease Vaccines

Rapid-response vaccines for pathogens such as influenza, RSV, CMV, Zika, malaria, and emerging viral threats

High fidelity antigen expression with tunable immunogenicity

Scalable manufacturing ideal for epidemic or pandemic scenarios

Cancer Vaccines & Immunotherapy

Neoantigen-based mRNA vaccines customized to each patient's tumor mutational profile

Shared-antigen vaccines targeting established tumor-associated antigens

Combination strategies with checkpoint inhibitors or CAR-T therapies

Why Modified mRNA Matters

Modified nucleotides reduce excessive innate activation, improving antigen presentation

Controlled expression yields superior T-cell and B-cell responses

Supports both individual (personalized) and off-the-shelf vaccine development

Cell and Gene Engineering

Modified mRNA is increasingly preferred for engineering cells ex vivo because it avoids genomic integration and supports high-efficiency transfection.

Cell Therapy Engineering

CAR-T and CAR-NK cell engineering: mRNA-encoded receptors ensure temporary expression to enhance safety

Dendritic cell reprogramming: Express cytokines, co-stimulatory molecules, or tumor antigens

T-cell functional enhancement: mRNA-expressed transcription factors or immune regulators

Gene Editing Delivery

Delivery of Cas enzymes, prime editors, or base editors as mRNA

Reduced risk of off-target effects vs DNA plasmids

Suitable for ex vitro, ex vivo, and select in vivo editing workflows

Why Modified mRNA Matters

High translation efficiency for transient but potent expression

Reduced innate responses allow better cell viability post-transfection

Integration-free delivery supports regulatory acceptance

Regenerative Medicine & Tissue Repair

Modified mRNA enables controlled, local, and temporary expression of regenerative factors, offering a safer alternative to viral vectors.

Regenerative Applications

Cardiac repair: VEGF-A, HGF, FGF, and other angiogenic factors

Liver regeneration: hepatocyte growth factors, anti-fibrotic proteins

Wound healing: cytokines, anti-inflammatory signals, matrix regulators

Stem cell reprogramming: transient expression of factors like Oct4, Sox2, and Nanog

Why Modified mRNA Matters

Tunable protein expression without permanent gene alteration

Reduced inflammatory signaling ensures compatibility with sensitive tissues

Suitable for both direct injection and scaffold-based delivery

Rare Genetic & Metabolic Disease Research

Modified mRNA offers a promising approach to treat diseases caused by single-gene defects.

Examples

Enzyme deficiencies (e.g., metabolic disorders)

Structural protein deficiencies (e.g., dystrophin fragments)

Signaling molecule restoration

Why Modified mRNA Matters

Rapid development cycles — no need for viral vector design

Avoids integration risks associated with DNA gene therapy

Can be combined with LNPs or targeted delivery platforms

In Vitro & In Vivo Research Models

Modified mRNA serves as a high-performance reagent for academic and industry R&D.

Applications

High-yield protein expression for biochemical studies

Reporter mRNA for imaging, tracking, or cell viability assays

Mechanistic studies in RNA stability, translation, or immunology

Drug screening systems using mRNA-encoded targets

Why Modified mRNA Matters

Predictable, repeatable expression

Reduced background innate immune activation

Compatible with automation and high-throughput screening

Get a Customized mRNA Modification Quote

Advancing an mRNA program requires a partner who understands the scientific, regulatory, and operational challenges unique to RNA therapeutics. Whether you are optimizing an early-stage research construct or preparing for pre-clinical development, our team provides the technical depth and manufacturing expertise to accelerate your work with precision. When you request a quote, our scientific advisors will work closely with you to define the optimal modification strategy—including nucleotide chemistry, cap structure, UTR architecture, poly(A) design, purity specifications, and optional formulation requirements. Every proposal is tailored to your application, delivering a clear plan for technical execution, timelines, cost structure, and scale-up options. Contact us today to receive a customized proposal for your modified mRNA project.

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