Pre-clinical Synthesis

Overview

  • High throughput synthesis for lead identification and lead optimization of oligonucleotide therapeutics
  • Chemically modified oligonucleotides and conjugates to support Structure–Activity Relationship (SAR) studies
  • Chemical synthesis of long RNA (up to 150 nucleotides)
  • Organic synthesis lab
Axo-50

High throughput synthesis for lead identification and lead optimization – siRNAs, ASOs etc.

  • Sequences received either through in-house bioinformatics in silico studies or from collaborating partners
  • Synthesis of oligonucleotides in 96-well plate format with a synthesis scale up to 1 µmol
  • In-house column packing system for custom CPGs (incl. ligand-based CPGs) 
  • Large variety of chemical modifications available
  • Ligand conjugation in high-throughput synthesis mode, e.g., GalNAc, cholesterol  
  • Automation of HPLC-related purification processes (AEX, RP, SEC)
  • Single strands as well as duplexes undergo QC evaluation 
  • Samples delivered in screw cap vials or 96-well plate (in a custom layout) 
  • siRNAs or ASOs with linkers for further conjugation delivered in 96-well plates 
  • High quality and fast turnaround 

Chemically modified oligonucleotides and conjugates to support Structure–Activity Relationship (SAR) studies

  • Wide range of chemically modified building blocks and site-specific functionalisation
  • Site-specific backbone modification (e.g., Phosphorothioates (PS), Phosphorodithioates (PS2), (PNdmi), etc.)
  • Different fluorophores
  • Conjugates based on small molecules, varied peptides (incl. cationic), varied lipids and carbohydrates (e.g., GalNAc), protein conjugation (e.g., nucleic acid conjugation to BSA, KLH etc.)  
    • Incorporation through solid phase synthesis
    • Incorporated also through post-synthetic conjugation
    • Various conjugation strategies and chemistries amenable to ligand modification
    • Both terminal and internal modifications
  • Incorporation of customer-specific modifications possible
  • Spiegelmer synthesis
  • Aptamer synthesis
  • Oligonucleotides with 5’-Triphosphate and 5’-Diphosphate

Synthesis of long RNA

  • Chemical synthesis of RNA with up to 150 nucleotides
    • Peptide conjugates
    • RNAs with 5’-Triphosphate or 5’-Diphosphate
  • Single guide RNAs for CRISPR/Cas applications
  • Aptamer synthesis
  • High yields of the deliverable from mg to multigram
  • Exceptional purity
Axo-45

Large Scale Chemical Manufacturing

  • Synthesis on ÄktaTM OP-100 and OP-400 synthesizer platforms
  • Oligonucleotide synthesis up to 30mmol and more per synthesis run
  • Manufacturing of:
    • Drug substance for GLP-Tox studies
    • Reference standards
    • Process related impurity markers
    • Oligonucleotides with 5’-Triphosphate and 5’-Diphosphate 
    • Process research to identify and optimise the synthesis and downstream processing parameters
    • Tech transfer thereof to support process development and GMP manufacturing
Axo-72

Organic synthesis lab 

  • Synthesis in mg to multigram scale
    • Small molecules
    • Ligands for conjugation to nucleic acids
  • Lipids for lipid nanoparticles (LNPs)  
    • Varied lipids synthesized: cationic, PEG, phospholipids etc.
    • For LNP formulation of oligonucleotides
    • Set of proprietary lipids available 
  • Nanoparticle formulation for Functional Delivery
Axo-63