A Randomized, Multicenter, Double-blind, Vehicle-controlled, Phase 2a Study to Assess the Safety, Pharmacokinetics, and Efficacy of PP405 in Adults With Androgenetic Alopecia

The study is designed to validate safety results from the Phase 1 PP405-001 trial while also characterizing longer term safety and PK following 28 days of administration.

开始日期2024-06-05

申办/合作机构

Pelage Pharmaceuticals, Inc.

NCT03970031 / Not yet recruiting临床3期

MMONARCh-1: Study of MSDC-0602K, a Modulator of the Mitochondrial Pyruvate Carrier for Outcomes in Patients With Pre Type 2 Diabetes (T2D) or T2D and NAFLD/NASH, Assessed for ImpRoved Glycemic Control and Cardiovascular Outcomes-1

This is a randomized, double-blind study of MSDC-0602K or placebo in subjects with pre-T2D or T2D and evidence of NAFLD/NASH.

开始日期2022-06-01

申办/合作机构

Cirius Therapeutics, Inc.初创企业

NCT02784444 / Completed临床2期

A Phase 2, Randomized, Double-Blind, Placebo-Controlled, 12-Month, Multiple-Dose Study to Evaluate the Safety, Tolerability and Efficacy of Three Dose Levels of MSDC-0602K in Patients With NASH (EMMINENCE™)

This is a randomized, double-blinded study of three doses of MSDC-0602K or placebo given orally once daily to subjects with biopsy proven NASH with fibrosis and no cirrhosis.

开始日期2016-09-14

申办/合作机构

Cirius Therapeutics, Inc.初创企业

[+1]

100 项与 MPC2 相关的临床结果

登录后查看更多信息

100 项与 MPC2 相关的转化医学

登录后查看更多信息

0 项与 MPC2 相关的专利（医药）

登录后查看更多信息

112

项与 MPC2 相关的文献（医药）

2024-10-18·Cell stem cell

Mitochondrial pyruvate carriers control airway basal progenitor cell function through glycolytic-epigenetic reprogramming.

Article

作者: Ren, Tao ; He, Yalin ; Zhang, Xi ; Zheng, Qi ; Pan, Xinwen ; Sui, Pengfei ; Zhou, Xiaolong ; Li, Yawen ; Wang, Guangchuan ; Zhu, Xueliang ; Zhang, Jiazhu ; Yuan, Huairui ; Liu, Xin

Basal cells (BCs) are the progenitor cells responsible for tracheal epithelium integrity. Here, we demonstrate that mitochondrial pyruvate carriers (MPCs) act as metabolic checkpoints that are essential for BC fate decision. Inhibition of MPCs enables long-term expansion of BCs from both mice and humans. Genetic inactivation of Mpc2 in mice leads to BC hyperplasia and reduced ciliated cells during homeostasis, as well as delayed epithelial regeneration and accumulation of intermediate cells following injury. Mechanistically, MPC2 links glycolysis to ATP citrate lyase (ACLY)-dependent cytosolic acetyl-coenzyme A (CoA) generation, which is required for the epigenetic control of differentiation-related gene transcription. Modulating this metabolic-epigenetic axis partially rescues Yes-associated protein (YAP)-dysfunction-induced changes in BCs. Importantly, exogenous citrate promotes the differentiation of BCs from chronic obstructive lung disease (COPD) patients. Thus, beyond demonstrating the role of pyruvate metabolism in BC fate decision, our study suggests that targeting pyruvate-citrate metabolism may serve as a potential strategy to rectify abnormal BC behavior in lung diseases.

2024-10-01·Neurobiology of Disease

Inhibition of the mitochondrial pyruvate carrier in astrocytes reduces amyloid and tau accumulation in the 3xTgAD mouse model of Alzheimer's disease

Article

作者: Millet, Philippe ; Martinou, Jean-Claude ; Ceyzériat, Kelly ; Montessuit, Sylvie ; Nicolaides, Alekos ; Petrelli, Francesco ; Badina, Aurélien M ; Tournier, Benjamin B ; Savioz, Armand

Alzheimer's Disease (AD) is characterized by an accumulation of pathologic amyloid-beta (Aβ) and Tau proteins, neuroinflammation, metabolic changes and neuronal death. Reactive astrocytes participate in these pathophysiological processes by releasing pro-inflammatory molecules and recruiting the immune system, which further reinforces inflammation and contributes to neuronal death. Besides these neurotoxic effects, astrocytes can protect neurons by providing them with high amounts of lactate as energy fuel. Astrocytes rely on aerobic glycolysis to generate lactate by reducing pyruvate, the end product of glycolysis, through lactate dehydrogenase. Consequently, limited amounts of pyruvate enter astrocytic mitochondria through the Mitochondrial Pyruvate Carrier (MPC) to be oxidized. The MPC is a heterodimer composed of two subunits MPC1 and MPC2, the function of which in astrocytes has been poorly investigated. Here, we analyzed the role of the MPC in the pathogeny of AD, knowing that a reduction in overall glucose metabolism has been associated with a drop in cognitive performances and an accumulation of Aβ and Tau. We generated 3xTgAD mice in which MPC1 was knocked-out in astrocytes specifically and focused our study on the biochemical hallmarks of the disease, mainly Aβ and neurofibrillary tangle production. We show that inhibition of the MPC before the onset of the disease significantly reduces the quantity of Aβ and Tau aggregates in the brain of 3xTgAD mice, suggesting that acting on astrocytic glucose metabolism early on could hinder the progression of the disease.

2024-05-20·Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition

母体年龄相关的卵母细胞老化对生育力的影响机制：斑马鱼模型的转录组学测序分析.

Article

作者: Zhu, Lin ; Sun, Huaqin ; Lin, Ziyuan ; Liu, Yanyan ; Sun, Chuntang ; Chen, Feng

ObjectiveFemale fertility gradually decreases with the increase in women's age. The underlying reasons include the decline in the quantity and quality of oocytes. Oocyte aging is an important manifestation of the decline in oocyte quality, including in vivo oocyte aging before ovulation and in vitro oocyte aging after ovulation. Currently, few studies have been done to examine oocyte aging, and the relevant molecular mechanisms are not fully understood. Therefore, we used zebrafish as a model to investigate oocyte aging. Three different age ranges of female zebrafish were selected to mate with male zebrafish of the best breeding age. In this way, we studied the effects of maternal age-related oocyte aging on fertility and investigated the potential molecular mechanisms behind maternal age-related fertility decline.MethodsEight female zebrafish aged between 158 and 195 d were randomly selected for the 6-month age group (180±12) d, 8 female zebrafish aged between 330 and 395 d were randomly selected for the 12-month age group (360±22) d, and 8 female zebrafish aged between 502 and 583 d were randomly selected for the 18-month age group (540±26) d. Male zebrafish of (180±29) d were randomly selected from zebrafish aged between 158 and 195 d and mated with female zebrafish in each group. Each mating experiment included 1 female zebrafish and 1 male zebrafish. Zebrafish embryos produced by the mating experiments were collected and counted. The embryos at 4 hours post-fertilization were observed under the microscope, the total number of embryos and the number of unfertilized embryos were counted, and the fertilization rate was calculated accordingly. The numbers of malformed embryos and dead embryos were counted 24 hours after fertilization, and the rates of embryo malformation and mortality were calculated accordingly. The primary outcome measure was the embryo fertilization rate, and the secondary outcome measures were the number of embryos per spawn (the total number of embryos laid within 1.5 hours after the beginning of mating and reproduction of the zebrafish), embryo mortality, and embryo malformation rate. The outcome measures of each group were compared. The blastocyst embryos of female zebrafish from each group born after mating with male zebrafish in their best breeding period were collected for transcriptomics analysis. Fresh oocytes of female zebrafish in each group were collected for transcriptomics analysis to explore the potential molecular mechanisms of maternal age-related fertility decline.ResultsCompared with that of the 6-month group (94.9%±3.6%), the embryo fertilization rate of the 12-month group (92.3%±4.2%) showed no significant difference, but that of the 18-month group (86.8%±5.5%) decreased significantly (P<0.01). In addition, the fertilization rate in the 18-month group was significantly lower than that in the 12-month group (P<0.05). Compared with that of the 6-month group, the embryo mortality of the female zebrafish in the 12-month group and that in the 18-month group were significantly higher than that in the 6-month group (P<0.000 1, P<0.001). There was no significant difference in the number of embryos per spawn or in the embryo malformation rate among the three groups. The results of the transcriptomics analysis of blastocyst embryos showed that some genes, including dusp5, bdnf, ppip5k2, dgkg, aldh3a2a, acsl1a, hal, mao, etc, were differentially expressed in the 12-month group or the 18-month group compared with their expression levels in the 6-month group. According to the KEGG enrichment analysis, these differentially expressed genes (DEGs) were significantly enriched in the MAPK signaling pathway, the phosphatidylinositol signaling system, and the fatty acid degradation and histidine metabolism pathway (P<0.05). The analysis of the expression trends of the genes expressed differentially among the three groups (the 6-month group, the 12-month group, and the 18-month group in turn) showed that the gene expression trends of fancc, fancg, fancb, and telo2, which were involved in Fanconi anemia pathway, were statistically significant (P<0.05). In the results of oocyte transcriptomics analysis, the genes that were differentially expressed in the 12-month group or the 18-month group compared with the 6-month group were mainly enriched in cell adhesion molecules and the protein digestion and absorption pathway (P<0.05). The results of the trends of gene expression in the zebrafish oocytes of the three groups (the 6-month group, the 12-month group, and the 18-month group in turn) showed that three kinds of gene expression trends of declining fertility with growing maternal age had significant differences (P<0.05). Further analysis of the three significantly differential expression trends showed 51 DEGs related to mitochondria and 5 DEGs related to telomere maintenance and DNA repair, including tomm40, mpc2, nbn, tti1, etc.ConclusionWith the increase in the maternal age of the zebrafish, the embryo fertilization rate decreased significantly and the embryo mortality increased significantly. In addition, with the increase in the maternal age of the zebrafish, the expression of mitochondria and telomere-related genes, such as tomm40, mpc2, nbn, and tti1, in female zebrafish oocytes decreased gradually. Maternal age may be a factor contributing to the decrease in oocyte fertilization ability and the increase in early embryo mortality. Maternal age-related oocyte aging affects the fertility and embryo development of the offspring.