p53 mRNA Translation Modulation via 5'UTR Protein Interactions
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Solution Overview
Problem
Current methods for modulating p53 activity are inadequate for effectively treating cancer and neurodegenerative diseases, as they fail to efficiently regulate p53 levels and induce apoptosis in cancer cells while minimizing damage to normal tissues.
Innovation Solution
Modulating p53 mRNA translation by affecting the function of its 5'-untranslated region (5'UTR), specifically through interactions with proteins like Ribosomal Protein L26 (RPL26) and nucleolin, using molecules such as antisense oligonucleotides, siRNA, and shRNA to increase or decrease p53 levels and activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If p53 activity is enhanced to treat cancer, then apoptosis induction in cancer cells is improved, but damage to normal tissues increases
Solution Approach 1:
The patent applies local quality by targeting p53 translation regulation specifically in cancer cells through modulation of 5'UTR-protein interactions. The approach selectively enhances p53 function where needed (in cancer cells with compromised p53 regulation) while sparing normal tissues that maintain proper p53 homeostasis, thereby achieving localized therapeutic effect with reduced systemic toxicity.
Solution Approach 2:
The patent employs parameter changes by modulating the translational efficiency of p53 mRNA through interference with 5'UTR-protein interactions. By altering the translation parameter (rather than total p53 levels), the invention achieves selective apoptosis induction in cancer cells while minimizing damage to normal tissues that regulate p53 translation differently.
2Reliability
If p53 levels are increased to induce cell cycle arrest, then cancer cell proliferation is controlled, but normal tissue function is impaired
Solution Approach 1:
The patent applies local quality by selectively increasing p53 levels in cancer cells through targeted modulation of translation regulation. Normal tissues that maintain appropriate p53 homeostasis are spared from excessive p53 accumulation, thereby achieving local control of cancer cell proliferation without impairing normal tissue function.
Solution Approach 2:
The patent applies inversion by targeting the regulatory mechanism (5'UTR-protein interactions) rather than directly increasing p53 levels. By interfering with the translation regulation mechanism, the invention achieves selective p53 upregulation in cancer cells while normal cells maintain their regulatory balance, effectively inverting the approach from direct p53 activation to regulatory mechanism disruption.
3Productivity
If conventional methods are used to modulate p53 activity, then cancer treatment is achieved, but selectivity between cancer and normal cells is insufficient
Solution Approach 1:
The patent applies local quality by exploiting differences in p53 translation regulation between cancer and normal cells. By targeting 5'UTR-protein interactions that are dysregulated in cancer, the invention achieves selective modulation of p53 activity in cancer cells while sparing normal cells, thereby improving therapeutic selectivity.
Solution Approach 2:
The patent employs an intermediary approach by targeting the 5'UTR-protein interaction complex as a mediator between p53 mRNA and the translation machinery. This intermediary target allows selective modulation of p53 translation in cancer cells without directly affecting p53 protein function in normal cells, thereby achieving improved selectivity.
Data Source
AI summary
The present invention relates to novel methods for modulating the activity of p53 tumor suppressor protein by affecting p53 translational regulation. More specifically, the invention relates to novel methods for modulating p53 mRNA translation in a cell by affecting a function of a p53 5′-untranslated region (5′UTR), including its interaction with proteins such as Ribosomal Protein L26 (RPL26), nucleolin, and p53. The invention also relates to the use of these methods for treating cancer, neurodegenerative disorders and minimizing the negative effects of cellular stresses.