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Comparation of the anti-CD19 CAR-T and the NMN treated anti-CD19 CAR-T

ABSTRACT: Our study provides compelling support to an effective CAR-T cell anti-aging intervention using NMN, a key NAD+ intermediate. We found the clinical potential of NMN for CAR-T cell immunotherapy for human cancers, attributed to their central memory phenotype. The cells are more viable, proliferative, and long-lived in vivo. Furthermore, these CAR-T cells exerted great antitumor efficacy against tumors in human xenograft mouse models. Detailed molecular mechanisms responsible for the pleiotropic effects of NMN need to be investigated further. So RNA-seq was used to analyze the different gene expression of these CAR-T cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE200367 | GEO | 2023/04/01

REPOSITORIES: GEO

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Comparation of the anti-CD19 CAR-T and the NMN treated anti-CD19 CAR-T

Project description:Comparation of the anti-CD19 CAR-T and the NMN treated anti-CD19 CAR-T

| PRJNA824334 | ENA

Comparation of two anti-EphA2 CAR-T constructs

Project description:We constructed two different third generation anti-EphA2 chimeric antigen receptors(CARs) for glioblastoma treatment. They have the same transmembrane and intracellular domains. The only different is the extracellular domain. T cells transduced with these two different CARs exhibited different anti-tumor capacities and cytokine secretion. So RNA-seq was used to anaylze the different gene expression archetecture of these two CAR-T cells.

2021-08-24 | GSE163833 | GEO

Transcriptomic profiling of human senescent cells in the setting of pharmacological intervention (NAD+ and NMN)

Project description:Aging and age-relataed pathologies can be delayed by specifically targeting the senescence-associated secretory phenotype (SASP), a hallmark feature of senescent cells. Achieving the goal using small molecules would have a tremendous impact on the quality of lifespan and burden of age-related chronic diseases. We report the potential of two metabolic molecules, NAD+ and NMN, to control the development of the pro-inflammatory phenotype of senescent human stromal cells. This study discloses the impact of NAD+ and NMN on the expression profile of senescent cells and provides a framework for future anti-aging administration with clear rationale.

2022-12-31 | GSE156038 | GEO

Nicotinamide mononucleotide (NMN) mediates alleviation of poly(I:C) induced inflammatory response in human primary cell cultures

Project description:NMN is the direct precursor of the nicotinamide adenine dinucleotide (NAD+) and is considered a key component to increase NAD+ levels and mitochondrial activity in cells. In this study, based on transcriptome analysis, we showed that NMN alleviates poly(I:C)-induced inflammatory response in two types of human primary cell cultures, human pulmonary microvascular endothelial cells (HPMEC) and human coronary artery endothelial cells (HCAEC). The major inflammatory mediators including IL-6 and PARP family members are grouped into co-expressed gene modules and significantly down-regulated under NMN-dosage in poly(I:C)-induced conditions in both cell types. The Bayesian network analysis of module hub genes predicted common genes including eukaryotic translation initiation factor 1B (EIF1B) and distinct genes such as platelet-derived growth factor binding molecules in HCAEC, which potentially regulate the identified inflammation modules. These results have suggested the robust regulatory mechanism of NMN to alleviate inflammatory pathways, which may open up the possibility of a new role for NMN replenishment in chronic or acute inflammation treatment.

2023-07-09 | GSE233679 | GEO

Comparation of two anti-EphA2 CAR-T constructs

Project description:Comparation of two anti-EphA2 CAR-T constructs

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Nicotinamide mononucleotide, a key NAD+ precursor, treats the pathophysiology of diet- and age-induced diabetes

Project description:Type 2 diabetes (T2D) has become an epidemic in our modern lifestyle, likely due to calorie-rich diets overwhelming our adaptive metabolic pathways. One such pathway is mediated by nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme in mammalian NAD+ biosynthesis, and the NAD+-dependent protein deacetylase SIRT1. Here we show that NAMPT-mediated NAD+ biosynthesis is severely compromised in metabolic organs by high-fat diet (HFD). Strikingly, nicotinamide mononucleotide (NMN), a product of the NAMPT reaction and a key NAD+ intermediate, ameliorates glucose intolerance by restoring NAD+ levels in HFD-induced T2D mice. NMN also enhances hepatic insulin sensitivity and restores gene expression related to oxidative stress, inflammatory response, and circadian rhythm, partly through SIRT1 activation. Furthermore, NAD+ and NAMPT levels show significant decreases in multiple organs during aging, and NMN improves glucose intolerance and lipid profiles in age-induced T2D mice. These findings provide critical insights into a novel intervention against diet- and age-induced T2D. 4 regular chow fed mice (RC1-4) vs 4 high-fat diet fed (HFD) (HFD1a-4a) mice were analyzed on one chip (Chip-A). 4 HFD mice (HFD1b-4b) vs 4 HFD-NMN treated mice (NMN1-4) were examined on the other chip (Chip-B).

2011-12-05 | E-GEOD-31647 | biostudies-arrayexpress

Slc12a8 is a nicotinamide mononucleotide transporter that counteracts aging

Project description:NAD+ levels decline in multiple tissues over age, causing various age-associated pathophysiologies. Nicotinamide mononucleotide (NMN) is a key NAD+ intermediate that promotes NAD+biosynthesis and counteracts age-associated physiological decline. However, how NMN transport is regulated remains unknown. Here we report a novel NMN transporter encoded by the Slc12a8 gene. Slc12a8 is highly expressed and regulated by NAD+ in the small intestine. Knocking down this gene abrogates the transport of NMN in vitro and in vivo. Slc12a8 exhibits specificity to NMN and dependency on the sodium ion. Slc12a8 deficiency significantly decreases NAD+ levels in the jejunum and ileum, due to decreases in NMN uptake traced by doubly labeled isotopic NMN. Slc12a8 expression is upregulated in the aged ileum, contributing to the maintenance of NAD in aged mice. Thus, this newly identified NMN transporter plays a critical role in counteracting NAD+ decline during aging.

2019-01-01 | GSE118365 | GEO

Long-term administration of nicotinamide mononucleotide mitigates age-associated physiological decline in mice

Project description:NAD+ availability decreases with age and in certain disease conditions. Nicotinamide mononucleotide (NMN), a key NAD+ intermediate, has been shown to enhance NAD+ biosynthesis and ameliorate various pathologies in mouse disease models. In this study, we conducted a 12 month-long NMN administration to regular chow-fed wild-type C57BL/6N mice during their normal aging. Orally administered NMN was quickly utilized to synthesize NAD+ in tissues. Remarkably, NMN effectively mitigates age-associated physiological decline in mice. Without any obvious toxicity or deleterious effects, NMN suppressed age-associated body weight gain, enhanced energy metabolism, promoted physical activity, improved insulin sensitivity and plasma lipid profile, and ameliorated eye function and other pathophysiologies. Consistent with these phenotypes, NMN prevented age-associated gene expression changes in key metabolic organs and enhanced mitochondrial oxidative metabolism and mitonuclear protein imbalance in skeletal muscle. These effects of NMN highlight the preventive and therapeutic potential of NAD+ intermediates as effective anti-aging interventions in humans.

2016-12-01 | GSE85718 | GEO

A Conformation specific Nanobody Targeting the NMN-activated State of SARM1

Project description:Upon axonal injury, Sterile alpha (SAM) and Toll/interleukin-1 receptor (TIR) motif containing 1 (SARM1) is activated by nicotinamide mononucleotide (NMN) to deplete NAD and consequently promote the process of axon degeneration (AxD). Currently, only the inactive form of SARM1 in its auto-inhibitory conformation has been resolved. The flexibility of the enzymatically active form of SARM1 has so far precluded its structural determination. To solve the problem, we generated a stabilizing nanobody, Nb-C6, that specifically recognized 30 only the NMN-activated form of SARM1. The conformation specificity was verified by immunoprecipitation and surface plasmon resonance. Fluorescently labeled Nb-C6 could immunostain only the activated SARM1 in cells stimulated with CZ-48, a permeant mimetic of NMN. Expression of Nb-C6 in live cells resulted in stabilization of the active form of the endogenous and exogenous SARM1, producing and elevating cellular levels of cyclic ADP-ribose, a calcium messenger. Cryo-EM of the NMN-activated SARM1 complexed by Nb-C6 showed an octameric structure resembling a “blooming lotus” with the ARM domains bending significantly inward and swinging out together with the TIR domains to form the “petals of the lotus”. Nb-C6 bound to the SAM domain of the activated SARM1 and stabilized its Armadillo repeat motif domain. Analyses using hydrogen-deuterium exchange mass spectrometry (HDX-MS), and cross-linking MS (XL-MS) indicate that the activated SARM1 is highly dynamic and flexible and the neighboring TIRs form dimers via the surface close to one BB loop. The Nanobody is thus a valuable tool for delineating the mechanism of activation of SARM1 in AxD and other cellular processes.

2022-11-29 | PXD033528 | Pride

SWATH proteomics of NMN effects

Project description:Nicotinamide mononucleotide (NMN) has emerged as a promising therapeutic intervention for age-related disorders, including Type 2 Diabetes. In this study, we investigated the effects of NMN treatment on glucose uptake and its underlying mechanisms in mouse tissues (muscle, liver, brain and adipose tissue) and cell lines (HepG2 and C2C12). Through a comprehensive proteomic analysis, we uncovered a series of distinct organ-specific effects that contribute to the observed improvements in glucose metabolism.

2024-06-16 | PXD043257 | Pride

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