Abstract
Pyruvate kinase M2 (PKM2) is a key rate-limiting enzyme in glycolysis. It is well known that PKM2 plays a vital role in the proliferation of tumor cells. However, PKM2 can also exert its biological functions by mediating multiple signaling pathways in neurological diseases, such as Alzheimer’s disease (AD), cognitive dysfunction, ischemic stroke, post-stroke depression, cerebral small-vessel disease, hypoxic-ischemic encephalopathy, traumatic brain injury, spinal cord injury, Parkinson’s disease (PD), epilepsy, neuropathic pain, and autoimmune diseases. In these diseases, PKM2 can exert various biological functions, including regulation of glycolysis, inflammatory responses, apoptosis, proliferation of cells, oxidative stress, mitochondrial dysfunction, or pathological autoimmune responses. Moreover, the complexity of PKM2’s biological characteristics determines the diversity of its biological functions. However, the role of PKM2 is not entirely the same in different diseases or cells, which is related to its oligomerization, subcellular localization, and post-translational modifications. This article will focus on the biological characteristics of PKM2, the regulation of PKM2 expression, and the biological role of PKM2 in neurological diseases. With this review, we hope to have a better understanding of the molecular mechanisms of PKM2, which may help researchers develop therapeutic strategies in clinic.
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Abbreviations
- PKM2:
-
Pyruvate kinase M2
- AD :
-
Alzheimer’s disease
- PD:
-
Parkinson’s disease
- PK:
-
Pyruvate kinase
- PEP:
-
Phosphoenolpyruvate
- ADP:
-
Adenosine diphosphate
- ATP:
-
Adenosine triphosphate
- HIF-1α:
-
Hypoxia-inducible factor 1α
- HRE:
-
Hypoxia response element
- PI3K:
-
Phosphoinositide 3-kinase
- mTOR:
-
Mammalian target of rapamycin
- AMPK:
-
AMP-activated protein kinase
- PTEN:
-
Phosphatase and tensin homolog
- EGFR:
-
Epidermal growth factor receptor
- PKC:
-
Protein kinase C
- NF-κB:
-
Nuclear factor kappa enhancer binding protein
- PPAR-γ:
-
Peroxisome proliferator-activated receptor γ
- mTORC2:
-
Mammalian target of rapamycin complex 2
- AKT:
-
Protein kinase B
- APJ:
-
Angiotensin II receptor-like 1
- SRSF3:
-
Arginine rich splicing factor 3
- PTBP1:
-
Polypyrimidine tract binding protein 1
- hnRNPA1/A2:
-
Heterogeneous nuclear ribonucleoprotein A1/A2
- circRNA:
-
Circular RNAs
- circSRRM4:
-
CircRNA serine/arginine repetitive matrix 4
- miRNAs:
-
MicroRNAs
- miR-124:
-
MicroRNA-124
- RBM4:
-
RNA-binding motif 4
- PHB2:
-
Prohibitin 2
- lncRNAs:
-
Long non-coding RNAs
- LINC00689:
-
LncRNA long intergenic non-protein coding RNA 689
- ceRNA:
-
Competing endogenous RNA
- circMAT2B:
-
Circular RNA MAT2B
- Mbd2:
-
Methyl-CpG binding domain protein 2
- PPP:
-
Pentose phosphate pathway
- FBP:
-
Fructose-1,6-bisphosphate
- PHD3:
-
Prolyl hydroxylase 3
- GLUT1:
-
Glucose transporter 1
- LDHA:
-
Lactate dehydrogenase A
- PDK1:
-
Pyruvate dehydrogenase kinase 1
- iNs:
-
Induced neurons
- LDH5:
-
Lactate dehydrogenase isoform 5
- MCTs:
-
Monocarboxylate transporters
- NMDA:
-
N-methyl-D-aspartate
- NMDAR:
-
NMDA receptor
- ERK1/2:
-
Extracellular signal-regulated protein kinases 1 and 2
- Bcl-2:
-
B-cell lymphoma 2
- Bax:
-
Bcl2-associated X
- CDKs:
-
Cyclin-dependent kinases
- STAT3:
-
Signal transducers and activators of transcription 3
- 6-OHDA:
-
6-Hydroxydopamine
- LPS:
-
Lipopolysaccharide
- Wnt:
-
Wingless/integrated
- GCI:
-
Global cerebral ischemia
- 5′ Tyr-tRF:
-
5′ TRNA fragments derived from tyrosine pre-tRNA
- CCND1:
-
Cyclin D1
- HDACs:
-
Histone deacetylases
- MAPK:
-
Mitogen-activated protein kinase
- SCI:
-
Spinal cord injury
- TCF4:
-
T-cell factor 4
- FAK:
-
Focal adhesion kinase
- VEGF:
-
Vascular epithelial growth factor
- VCP:
-
Valosin-containing protein
- TLRs:
-
Toll-like receptors
- Pyk2:
-
Proline-rich tyrosine kinase 2
- PGC-1α:
-
Peroxisome proliferator-activated receptor-γ co-activator 1-α
- HMGB1:
-
High-mobility group box 1
- NLRP3:
-
NLR family, pyrin domain containing 3
- AIM2:
-
Absent in melanoma 2
- EIF2AK2 or PKR:
-
Eukaryotic translation initiation factor 2 alpha kinase 2
- iNOS:
-
Inducible nitric oxide synthase
- COX-2:
-
Cyclooxygenase-2
- MyD88:
-
Myeloid differentiation factor 88
- TRAF6:
-
TNF receptor-associated factor 6
- NOX4:
-
NADPH oxidase 4
- IFN-γ:
-
Interferon-γ
- ROS:
-
Reactive oxygen species
- ATF2:
-
Activation transcription factor 2
- H3:
-
Histone 3
- C1q:
-
Complement component 1q
- TNF:
-
Tumor necrosis factor
- IL:
-
Interleukin
- C3:
-
Complement component 3
- C3aR:
-
C3a receptors
- RA:
-
Rheumatoid arthritis
- Th17:
-
Helper T cells 17
- DCs:
-
Dendritic cells
- JNK:
-
C-Jun N-terminal kinase
- mDCs:
-
Myeloid dendritic cells
- RNS:
-
Reactive nitrogen species
- NADPH:
-
Nicotinamide adenine dinucleotide phosphate hydride
- GSH:
-
Reduced glutathione
- Nrf2:
-
Nuclear factor-erythroid-2-related factor 2
- GPX4:
-
Glutathione peroxidase 4
- Gclc:
-
The catalyzing subunit of glutamate-cysteine ligase
- Gclm:
-
The modifying subunit of glutamate-cysteine ligase
- NQO1:
-
NADPH quinone oxidoreductase 1
- TrxR1:
-
Thioredoxin reductase 1
- Trx:
-
Thioredoxin
- NAD + :
-
Nicotinamide adenine dinucleotide
- NADH:
-
Reduced nicotinamide adenine dinucleotide
- UPR:
-
Unfolded protein response
- ARE:
-
Antioxidant response element
- Drp1:
-
Dynamin-related protein 1
- Mfn2:
-
Mitochondrial fusion protein 2
- MMP:
-
Mitochondrial membrane potential
- OPA1:
-
Optic atrophy 1
- PP1:
-
Protein phosphatase 1
- FUNDC1:
-
FUN14 domain-containing 1
- Aβ:
-
Amyloid β-peptide
- APH1:
-
Aph-1 homolog
- NCT:
-
Nicastrin
- IFITM3:
-
Interferon-induced transmembrane protein 3
- NPSLE:
-
Neuropsychiatric systemic lupus erythematosus
- MCI:
-
Mild cognitive impairment
- BDNF:
-
Brain-derived neurotrophic factor
- PSD:
-
Post-stroke depression
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This work was supported by the National Natural Science Foundation of China (grant number 82060218).
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Zhang, X., Lei, Y., Zhou, H. et al. The Role of PKM2 in Multiple Signaling Pathways Related to Neurological Diseases. Mol Neurobiol (2023). https://doi.org/10.1007/s12035-023-03901-y
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DOI: https://doi.org/10.1007/s12035-023-03901-y