Circular Polyribonucleotide Immunogens for Coronavirus Protection
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Solution Overview
Problem
There is an urgent need for effective vaccines and therapeutics against coronaviruses, particularly for COVID-19, to prevent and treat infections caused by SARS-CoV-2.
Innovation Solution
Development of circular polyribonucleotides encoding coronavirus immunogens, such as RBD, Spike, and nsp proteins, which induce polyclonal antibodies for prophylaxis and treatment, optionally combined with innate immune system stimulators and adjuvants to enhance immune response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional vaccines and therapeutics are used, then some level of protection may be achieved, but they are insufficient to effectively prevent and treat coronavirus infections
Solution Approach 1:
The patent employs parameter changes by modifying the chemical structure of small molecules to optimize their antiviral activity. Specifically, the compound series features variations in R1, R2, R3, and R4 substituents on the core molecular structure, allowing systematic optimization of binding affinity and antiviral efficacy against SARS-CoV-2 main protease
Solution Approach 2:
The patent utilizes composite materials through the design of complex molecular structures combining multiple functional groups. The compounds integrate a core scaffold with various substituent groups (R1-R4) that work synergistically to enhance antiviral activity, pharmacokinetic properties, and selectivity against coronavirus main protease
2Reliability
If circular polyribonucleotides encoding coronavirus immunogens are administered, then polyclonal antibodies are generated providing protection against coronavirus infections, but the complexity of the immunogenic composition increases
Solution Approach 1:
The circular polyribonucleotide construct is designed to encode multiple coronavirus immunogens (Spike protein, RBD, and other viral proteins) within a single molecular platform. This multi-functional design allows simultaneous induction of antibodies against multiple viral antigens, providing broad protection against different coronavirus strains and variants
Solution Approach 2:
The patent employs a nested structural organization where multiple open reading frames (ORFs) encoding different immunogens are embedded within a single circular polyribonucleotide molecule. The construct contains nested elements including 5' and 3' UTR regions, multiple coding sequences, and regulatory elements all organized in a compact circular format, reducing the number of separate administrations needed
Data Source
AI summary
The disclosure provides compositions and methods comprising circular polyribonucleotides comprising a sequence encoding a coronavirus immunogen, and compositions and methods comprising linear polyribonucleotides comprising a sequence encoding one or more coronavirus immunogens. Compositions and methods are provided that are related to generating polyclonal antibodies, for example, using the disclosed circular polyribonucleotides or the disclosed linear polyribonucleotides.