The key to fungal vaccine R&D is a multi-step process, from selecting the right antigen to validating its safety and efficacy. We offer a comprehensive approach to address these critical stages.
It is difficult to identify universal antigens capable of inducing a broad-spectrum protective immune response due to the complex and polymorphic nature of fungal pathogens. Additionally, many fungal antigens share similarities with host molecules, which can lead to autoimmune reactions.
Fungi possess powerful immune evasion mechanisms that can effectively suppress the host's immune response. Therefore, developing a vaccine that can overcome these mechanisms and generate a strong and lasting cellular and humoral immune response is a significant challenge.
The R&D pipeline for fungal vaccines is relatively small, lacking a mature translational path. We facilitate the smooth transition of laboratory research findings to the preclinical validation stage, addressing regulatory and technical challenges.
Using bioinformatics, proteomics, and immunological methods, we screen and identify potential protective antigens from pathogenic fungi.
We offer services such as recombinant protein expression, peptide synthesis, and nucleic acid vaccine design tailored to different antigen types (e.g., proteins, polysaccharides).
We evaluate various novel adjuvants to enhance vaccine immunogenicity and induce specific types of immune responses (e.g., Th17 immunity).
We use both in vitro cell models and in vivo animal models to comprehensively assess the immunogenicity, safety, and protective efficacy of vaccine candidates.
Including toxicology studies, pharmacokinetic analysis, and manufacturing process development support.
Table 1. Vaccine strategies developed to treat or prevent fungal infections
| Strategy | Potential pros | Potential cons | Design considerations |
|---|---|---|---|
| DC vaccines | Adjuvants that are too toxic to administer to humans can be directly delivered to DCs ex vivo |
1. DC vaccination may not be feasible in most populations 2. Costly |
1. DC subtype selection 2. Adjuvant selection |
| Attenuated/killed vaccine |
1. Provides numerous antigens specific for the pathogen 2. Protection can be induced independent of CD4þ T cells |
Risk of inducing an infection or dysregulated inflammatory response | Attenuation must be irreversible |
| Recombinant protein (subunit) vaccine |
1. Specifically formulated to elicit a protective response 2. Safer than attenuated vaccines, especially in immunosuppressed patients |
T-cell responses to antigens may differ as a function of HLA haplotype | Antigen must be present on all strains of the fungus |
| Conjugate vaccines |
1. Can be formulated to induce responses against glycan and/or protein antigens 2. Can be self-adjuvanting 3. Safer than attenuated vaccines in immunosuppressed patients |
T-cell responses to antigens may differ as a function of HLA haplotype | Antigen(s) must be present on all strains of the fungus |
Providing comprehensive services from early research to preclinical support, significantly shortening the R&D cycle.
Our state-of-the-art mRNA, recombinant protein, and bioinformatics platforms ensure the technological leadership of your project.
Offering flexible and tailored solutions to meet the unique needs of each project.
Following ISO 9001 standards to ensure the accuracy and reproducibility of all experimental data.
Project Background: A study was conducted to develop a safe and effective synthetic vaccine for disseminated candidiasis, a severe fungal infection with high mortality. The aim was to create a novel vaccine conjugate that induces a strong protective antibody response without requiring a separate adjuvant unsuitable for human use.
Solution: Researchers synthesized a glycopeptide conjugate vaccine, β-(Man)3-Fba, by combining a mannotriose glycan and a peptide from C. albicans. To enhance immunogenicity for potential human use, they modified the conjugate by coupling it to tetanus toxoid (TT). This new vaccine, β-(Man)3-Fba-TT, was administered to mice with or without adjuvants like alum or MPL.
Result: The study found that the β-(Man)3-Fba-TT conjugate, when administered alone, acted as a self-adjuvanting vaccine. It induced robust antibody responses and a significant isotype switch from IgM to IgG. Immunized mice showed a high degree of protection against a lethal C. albicans challenge, demonstrating increased survival times and a reduced fungal burden in the kidneys. These results confirm that the TT component is sufficient to promote a protective immune response without the need for additional adjuvants.
We have experience handling a variety of pathogenic fungi, including but not limited to Candida, Aspergillus, Cryptococcus, and Coccidioides.
The development timeline varies depending on project complexity and service scope. Generally, it can take several months to a year from antigen discovery to preclinical validation. We work closely with our clients to establish a detailed timeline.
We employ a multi-stage assessment strategy. First, we evaluate immunogenicity through in vitro cell experiments; then, we conduct efficacy tests in animal models; finally, we perform comprehensive toxicology and safety assessments to ensure the vaccine is safe before entering clinical trials.
Yes. We have an extensive adjuvant library and can screen and recommend the most suitable adjuvant based on your antigen characteristics and the desired type of immune response.
Absolutely. We offer an end-to-end "one-stop" service. You only need to provide the strain, and we can be responsible for all stages from antigen screening, vaccine design, and immunological assessment to preclinical research.
If you have any needs regarding fungal vaccine design and development, please contact us immediately! Our expert team will provide you with professional consultation and support.
Inquire NowAll of our products can only be used for research purposes. These vaccine ingredients CANNOT be used directly on humans or animals.
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