Gene expression is globally regulated by interacting nucleobase supply and mRNA composition demand: a mechanism disrupted by multiple disease states and drug treatments

-д хадгалсан:
Номзүйн дэлгэрэнгүй
-д хэвлэсэн:bioRxiv (Dec 23, 2024)
Үндсэн зохиолч: Benjamin Simon Pickard
Хэвлэсэн:
Cold Spring Harbor Laboratory Press
Нөхцлүүд:
Онлайн хандалт:Citation/Abstract
Full Text - PDF
Full text outside of ProQuest
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024 7 |a 10.1101/2024.12.23.630131  |2 doi 
035 |a 3148678922 
045 0 |b d20241223 
100 1 |a Benjamin Simon Pickard 
245 1 |a Gene expression is globally regulated by interacting nucleobase supply and mRNA composition demand: a mechanism disrupted by multiple disease states and drug treatments 
260 |b Cold Spring Harbor Laboratory Press  |c Dec 23, 2024 
513 |a Working Paper 
520 3 |a Conventional expression studies quantify messenger RNA (mRNA) transcript levels gene-by-gene. We recently showed that protein expression is modulated at a global scale by amino acid availability, suggesting that mRNA expression levels might be similarly affected by nucleobase supply. Re-analysis of transcriptomic datasets confirmed that nucleobase supply and mRNA A+U:C+G sequence composition interact to shape a global profile of expression which can be represented by simple numerical outputs. In mammals, each separate organ and cell-type displays a distinct baseline profile of expression, influenced by differentiation state. Expression profiles shift dynamically across the circadian day and the menstrual cycle. They are also significantly distorted by viral infection, multiple complex genetic disorders (including Alzheimer's disease, schizophrenia, and autoimmune disorders), and after treatment with 115 of the 597 chemical entities analysed. These entities included known toxins, but also many commonly prescribed medications such as antibiotics and proton pump inhibitors, thus revealing a new mechanism of drug action and side-effect. A role for nucleobase supply is supported by the actions of nucleobase analogue treatments and by a model of the nucleobase metabolism disorder, Lesch-Nyhan syndrome. On the demand-side, mRNAs at compositional extremes are over-represented in key gene ontologies including transcription and cell division, making these processes particularly sensitive to swings in global expression. This permits efficient en bloc reprogramming of cell state through simple changes in nucleobase proportion and supply. It is also proposed that this mechanism helped mitigate the loss of essential amino acid synthesis in higher organisms. In summary, global expression regulation is invisible to conventional transcriptomic analysis, but its measurement allows a useful distinction between active, promoter-mediated gene expression changes and passive, cell state-dependent transcriptional competence. Linking metabolism directly to expression offers an entirely new perspective on evolution, disease aetiopathology (including GxE interactions), and the nature of the pharmacological response.Competing Interest StatementThe authors have declared no competing interest. 
653 |a Proton pump inhibitors 
653 |a Gene expression 
653 |a Cell division 
653 |a Amino acid composition 
653 |a Amino acid sequence 
653 |a Lesch-Nyhan syndrome 
653 |a Genetic disorders 
653 |a Drug metabolism 
653 |a Cell differentiation 
653 |a Metabolism 
653 |a Transcriptomics 
653 |a Schizophrenia 
653 |a Neurodegenerative diseases 
653 |a Nucleotide sequence 
653 |a Circadian rhythms 
653 |a Autoimmune diseases 
653 |a Alzheimer's disease 
653 |a Mental disorders 
653 |a Menstrual cycle 
653 |a Antibiotics 
773 0 |t bioRxiv  |g (Dec 23, 2024) 
786 0 |d ProQuest  |t Biological Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3148678922/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3148678922/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u https://www.biorxiv.org/content/10.1101/2024.12.23.630131v1