Metabolic regulation of gene expression by histone lactylation
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA474681 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7264060.fastq.gz | Fastqsanger.gz | |||
| SRR7264070_1.fastq.gz | Fastqsanger.gz | |||
| SRR7264070_2.fastq.gz | Fastqsanger.gz | |||
| SRR7264080_1.fastq.gz | Fastqsanger.gz | |||
| SRR7264080_2.fastq.gz | Fastqsanger.gz |
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Project description:Cancer-augmented lactogenesis has been described by the Warburg effect, and is associated with several major hallmarks of neoplasia. However, the non-metabolic functions of elevated lactate in physiology and disease remain unknown. Here we report histone lysine lactylation as a new type of epigenetic mechanism and as a functional destination for lactate. Histone lactylation is induced under glycolytic conditions such as hypoxia and M1 macrophage polarization. In the late phase of M1 macrophage polarization, increases in histone lactylation but not acetylation mark M2-like genes for activation. Our findings suggest a feedback mechanism of the innate immune system to switch from proinflammation to resolution through histone Kla-associated gene expression. This mechanism is implemented by the coopted function of lactate and histone lactylation in metabolism and epigenetics. Together, our study opens a new avenue for understanding function of lactate and glycolysis underlined diverse pathophysiological conditions.
2019-08-06 | GSE115354 | GEO
Project description:The Warburg effect, which originally described increased production of lactate in cancer, is associated with diverse cellular processes such as angiogenesis, hypoxia, polarization of macrophages and activation of T cells. This phenomenon is intimately linked to several diseases including neoplasia, sepsis and autoimmune diseases1,2. Lactate, which is converted from pyruvate in tumour cells, is widely known as an energy source and metabolic by-product. However, its non-metabolic functions in physiology and disease remain unknown. Here we show that lactate-derived lactylation of histone lysine residues serves as an epigenetic modification that directly stimulates gene transcription from chromatin. We identify 28 lactylation sites on core histones in human and mouse cells. Hypoxia and bacterial challenges induce the production of lactate by glycolysis, and this acts as a precursor that stimulates histone lactylation. Using M1 macrophages that have been exposed to bacteria as a model system, we show that histone lactylation has different temporal dynamics from acetylation. In the late phase of M1 macrophage polarization, increased histone lactylation induces homeostatic genes that are involved in wound healing, including Arg1. Collectively, our results suggest that an endogenous 'lactate clock' in bacterially challenged M1 macrophages turns on gene expression to promote homeostasis. Histone lactylation thus represents an opportunity to improve our understanding of the functions of lactate and its role in diverse pathophysiological conditions, including infection and cancer.
| S-EPMC6818755 | biostudies-literature
Project description:Epigenetic alterations are among the prominent drivers of cellular senescence and/or aging, intricately orchestrating gene expression programs during these processes. Many studies have investigated the histone modification mechanisms that regulate cellular senescence and aging. In this study, we show that histone lactylation, an identified histone modification that integrates metabolic processes, epigenetic regulation of gene expression and cellular activities in response to internal and external cues, plays a pivotal role in counteracting senescence and mitigating dysfunctions of skeletal muscle in aged mice. Mechanistically, histone lactylation levels markedly decrease during cellular senescence but are restored under hypoxic conditions primarily due to elevated glycolytic activity. The enrichment of histone lactylation at promoters is essential for sustaining the expression of genes involved in the cell cycle and DNA repair pathways, thereby inhibiting cellular senescence. Furthermore, the modulation of enzymes crucial for histone lactylation, including p300 and HDAC1, leads to reduced histone lactylation and accelerated cellular senescence. Consistently, the suppression of glycolysis and the depletion of histone lactylation are also observed during skeletal muscle aging. Running exercise increases the levels of glycolysis and histone lactylation, which in turn upregulate key genes in the DNA repair and proteostasis pathways, thereby helping to preserve the proper function of skeletal muscle. Our study highlights the significant roles of histone lactylation in modulating cellular senescence as well as aging-related tissue function, suggesting that this modification may serve as an innovative biomarker for senescence and provides a promising avenue for antiaging intervention via metabolic manipulation.
2024-05-01 | GSE226007 | GEO
Project description:Epigenetic alterations are among the prominent drivers of cellular senescence and/or aging, intricately orchestrating gene expression programs during these processes. Many studies have investigated the histone modification mechanisms that regulate cellular senescence and aging. In this study, we show that histone lactylation, an identified histone modification that integrates metabolic processes, epigenetic regulation of gene expression and cellular activities in response to internal and external cues, plays a pivotal role in counteracting senescence and mitigating dysfunctions of skeletal muscle in aged mice. Mechanistically, histone lactylation levels markedly decrease during cellular senescence but are restored under hypoxic conditions primarily due to elevated glycolytic activity. The enrichment of histone lactylation at promoters is essential for sustaining the expression of genes involved in the cell cycle and DNA repair pathways, thereby inhibiting cellular senescence. Furthermore, the modulation of enzymes crucial for histone lactylation, including p300 and HDAC1, leads to reduced histone lactylation and accelerated cellular senescence. Consistently, the suppression of glycolysis and the depletion of histone lactylation are also observed during skeletal muscle aging. Running exercise increases the levels of glycolysis and histone lactylation, which in turn upregulate key genes in the DNA repair and proteostasis pathways, thereby helping to preserve the proper function of skeletal muscle. Our study highlights the significant roles of histone lactylation in modulating cellular senescence as well as aging-related tissue function, suggesting that this modification may serve as an innovative biomarker for senescence and provides a promising avenue for antiaging intervention via metabolic manipulation.
2024-05-01 | GSE226006 | GEO
Project description:Epigenetic alterations are among the prominent drivers of cellular senescence and/or aging, intricately orchestrating gene expression programs during these processes. Many studies have investigated the histone modification mechanisms that regulate cellular senescence and aging. In this study, we show that histone lactylation, an identified histone modification that integrates metabolic processes, epigenetic regulation of gene expression and cellular activities in response to internal and external cues, plays a pivotal role in counteracting senescence and mitigating dysfunctions of skeletal muscle in aged mice. Mechanistically, histone lactylation levels markedly decrease during cellular senescence but are restored under hypoxic conditions primarily due to elevated glycolytic activity. The enrichment of histone lactylation at promoters is essential for sustaining the expression of genes involved in the cell cycle and DNA repair pathways, thereby inhibiting cellular senescence. Furthermore, the modulation of enzymes crucial for histone lactylation, including p300 and HDAC1, leads to reduced histone lactylation and accelerated cellular senescence. Consistently, the suppression of glycolysis and the depletion of histone lactylation are also observed during skeletal muscle aging. Running exercise increases the levels of glycolysis and histone lactylation, which in turn upregulate key genes in the DNA repair and proteostasis pathways, thereby helping to preserve the proper function of skeletal muscle. Our study highlights the significant roles of histone lactylation in modulating cellular senescence as well as aging-related tissue function, suggesting that this modification may serve as an innovative biomarker for senescence and provides a promising avenue for antiaging intervention via metabolic manipulation.
2024-05-01 | GSE226005 | GEO
Project description:Epigenetic alterations are among the prominent drivers of cellular senescence and/or aging, intricately orchestrating gene expression programs during these processes. Many studies have investigated the histone modification mechanisms that regulate cellular senescence and aging. In this study, we show that histone lactylation, an identified histone modification that integrates metabolic processes, epigenetic regulation of gene expression and cellular activities in response to internal and external cues, plays a pivotal role in counteracting senescence and mitigating dysfunctions of skeletal muscle in aged mice. Mechanistically, histone lactylation levels markedly decrease during cellular senescence but are restored under hypoxic conditions primarily due to elevated glycolytic activity. The enrichment of histone lactylation at promoters is essential for sustaining the expression of genes involved in the cell cycle and DNA repair pathways, thereby inhibiting cellular senescence. Furthermore, the modulation of enzymes crucial for histone lactylation, including p300 and HDAC1, leads to reduced histone lactylation and accelerated cellular senescence. Consistently, the suppression of glycolysis and the depletion of histone lactylation are also observed during skeletal muscle aging. Running exercise increases the levels of glycolysis and histone lactylation, which in turn upregulate key genes in the DNA repair and proteostasis pathways, thereby helping to preserve the proper function of skeletal muscle. Our study highlights the significant roles of histone lactylation in modulating cellular senescence as well as aging-related tissue function, suggesting that this modification may serve as an innovative biomarker for senescence and provides a promising avenue for antiaging intervention via metabolic manipulation.
2024-05-01 | GSE249561 | GEO
Project description:Lysine lactylation (Kla) is a new type of histone mark implicated in the regulation of various functional processes such as transcription. However, how this histone mark acts in cancers remains unexplored due in part to a lack of knowledge about its reader proteins. Here, we observe that cervical cancer (CC) cells undergo metabolic reprogram by which lactate accumulation and thereby boost histone lactylation, particularly H3K14la. Utilizing a multivalent photoaffinity probe in combination with quantitative proteomics approach, we identify DPF2 as a candidate target of H3K14la. Biochemical studies as well as CUT&Tag analysis reveal that DPF2 is capable of binding to H3K14la, and co-localizes with it on promoters of oncogenic genes. Notably, disrupting the association between DPF2 and histone lactylation through structure-guided mutation blunts those cancer-related gene expression along with cell survival. Together, our findings reveal DPF2 as a bona fide H3K14la effector that couples histone lactylation to gene transcription and cell survival, offering insight into how histone Kla engages in transcription and tumorigenesis.
2024-06-17 | GSE267107 | GEO
Project description:Lysine lactylation (Kla) is a new type of histone mark implicated in the regulation of various functional processes such as transcription. However, how this histone mark acts in cancers remains unexplored due in part to a lack of knowledge about its reader proteins. Here, we observe that cervical cancer (CC) cells undergo metabolic reprogram by which lactate accumulation and thereby boost histone lactylation, particularly H3K14la. Utilizing a multivalent photoaffinity probe in combination with quantitative proteomics approach, we identify DPF2 as a candidate target of H3K14la. Biochemical studies as well as CUT&Tag analysis reveal that DPF2 is capable of binding to H3K14la, and co-localizes with it on promoters of oncogenic genes. Notably, disrupting the association between DPF2 and histone lactylation through structure-guided mutation blunts those cancer-related gene expression along with cell survival. Together, our findings reveal DPF2 as a bona fide H3K14la effector that couples histone lactylation to gene transcription and cell survival, offering insight into how histone Kla engages in transcription and tumorigenesis.
2024-06-17 | GSE267109 | GEO
Project description:Glycolysis-derived lactate was identified as substrate for histone lactylation, which has been regarded as a significant role in transcriptional regulation in many tissues. However, the role of histone lactylation in the metabolic center, the hypothalamus, is still unknown. Here, we show that hypothalamic pro-opiomelanocortin (POMC) neuron-specific deletion of family with sequence similarity 172, member A (Fam172a) can increase histone lactylation and protect mice against diet-induced obesity (DIO) and related metabolic disorders. Conversely, overexpression of Fam172a in POMC neurons led to an obesity-like phenotype. Using RNA-seq and CUT&Tag chromatin profiling analyses, we find that knockdown of Fam172a activates the glycolytic process and increases peptidylglycine α-amidating monooxygenase (PAM), which affects the synthesis of α-MSH, via H4K12la (histone lactylation). In addition, pharmacological inhibition of lactate production clearly abrogates the anti-obesity effect of PFKO (POMC-Cre, Fam172aloxP/loxP, POMC neurons Fam172a knockout). These findings highlight the importance of Fam172a and lactate in the development of obesity.
2024-11-06 | GSE280695 | GEO
Project description:Glycolysis-derived lactate was identified as substrate for histone lactylation, which has been regarded as a significant role in transcriptional regulation in many tissues. However, the role of histone lactylation in the metabolic center, the hypothalamus, is still unknown. Here, we show that hypothalamic pro-opiomelanocortin (POMC) neuron-specific deletion of family with sequence similarity 172, member A (Fam172a) can increase histone lactylation and protect mice against diet-induced obesity (DIO) and related metabolic disorders. Conversely, overexpression of Fam172a in POMC neurons led to an obesity-like phenotype. Using RNA-seq and CUT&Tag chromatin profiling analyses, we find that knockdown of Fam172a activates the glycolytic process and increases peptidylglycine α-amidating monooxygenase (PAM), which affects the synthesis of α-MSH, via H4K12la (histone lactylation). In addition, pharmacological inhibition of lactate production clearly abrogates the anti-obesity effect of PFKO (POMC-Cre, Fam172aloxP/loxP, POMC neurons Fam172a knockout). These findings highlight the importance of Fam172a and lactate in the development of obesity.
2024-11-06 | GSE280694 | GEO