
Two parallel pathways connect glutamine metabolism and …
2021年8月10日 · Our results demonstrated that, even in the absence of GLS activity, cancer cells maintain the capacity to metabolize glutamine through ASNS, which expression in these conditions is increased...
Full article: Glutaminase inhibition as potential cancer therapeutics ...
2023年12月11日 · Inhibition of glutaminase and targeting of glutaminolysis have emerged as promising strategies for cancer therapy. This review explores the role of glutaminases in cancer metabolism and discusses various glutaminase inhibitors developed as potential therapies for tumour regression.
谷氨酰胺、MTOR 和自噬:多连接关系,Autophagy - X-MOL
相反,我们证明了 ASNS(天冬酰胺合成酶(谷氨酰胺水解))和 GABA 分流器在谷氨酰胺充足期间对 AMPK-MTORC1 轴的代谢控制的关键作用。 我们的结果阐明了一个代谢网络,谷氨酰胺代谢通过涉及谷氨酰胺分解和 ASNS-GABA 分流的两个独立分支调节 MTORC1-巨自噬/自噬途径。 缩写: αKG:α-酮戊二酸;AMPK:AMP 活化蛋白激酶;ASNS:天冬酰胺合成酶(谷氨酰胺水解);GLUD/GDH:谷氨酸脱氢酶;GLS:谷氨酰胺酶;GOT1:谷氨酸-草酰乙酸转氨酶 …
Glutamine, MTOR and autophagy: a multiconnection relationship
Our recent investigation identified that the connection between glutamine and AMPK is not restricted to glutaminolysis. Rather, we demonstrated the crucial role of ASNS (asparagine synthetase (glutamine-hydrolyzing)) and the GABA shunt for the metabolic control of the AMPK-MTORC1 axis during glutamine sufficiency.
Filamentous GLS1 promotes ROS-induced apoptosis upon …
2022年5月19日 · Because glutamine is the unique γ-amino group donor for asparagine synthetase (ASNS)-catalyzed de novo synthesis of asparagine from aspartate, we wondered whether the super-activation of GLS1, resulting from QD-caused filament formation, facilitates apoptosis through deteriorating the intracellular glutamine deficiency and thus blocking the ...
成瘾性骨髓瘤细胞消耗谷氨酰胺会抑制骨髓间充质基质细胞的成骨 …
天冬酰胺合成酶 (ASNS) 是一种解释 Asn 合成的 Gln 依赖性酶,也被发现在 hMSCs 的 OB 分化过程中被诱导。 来自健康供体 (n=7) 和 MM 患者 (n=16) 的骨活检的原代 BM hMSCs 和 OBs 的基因表达谱表明 GLS、ASNS 和 SLC38A2 在 OBs 中表达更多,而 GS 基因 GLUL 的表达在来自健康 …
L-天冬酰胺酶的谷氨酰胺酶活性介导 Asns 上调的抑制,Blood - X …
2018年11月29日 · 天冬酰胺合成酶 (ASNS) 通过合成天冬酰胺介导对 ASNase 的抗性。 ASNS 在大多数细胞类型中表达,并且其表达响应于多种细胞应激而上调,包括氨基酸限制和内质网应激。
Myeloma Cells Deplete Bone Marrow Glutamine and Inhibit …
2020年11月5日 · Asn rescued osteoblast differentiation of Gln-starved mesenchymal stromal cells. These results demonstrate that MM cells impair osteoblast differentiation, hindering mesenchymal Asn synthesis through Gln depletion.
Clinical aggressiveness of malignant gliomas is linked to …
Gene expression for asparagine synthetase (ASNS), glutaminase (GLS), and BCAT1 were analyzed in 164 gliomas from 156 patients [33-anaplastic gliomas (AG) and 131-glioblastomas (GBM), 64 of which were recurrent GBMs]. ASNS and GLS were twofold higher in GBMs versus AGs. BCAT1 was also higher in GBMs.
文献阅读:p53介导的Asp-Asn平衡调控LKB1活性并影响细胞存活
天冬酰胺合成酶 (Asparagine synthetase ,ASNS) 在ATP的作用下,催化天冬氨酸(aspartate,Asp)转化为天冬酰胺(asparagine,Asn)。 然而在很大程度上,Asn在肿瘤细胞中的调控作用和生物学功能仍然未知。 近日,清华大学-北京生命科学联合中心在Nat. Commun.上报道: p53通过调节ASNS的转录,影响细胞内Asp-Asn的体内平衡,从而调控了淋巴瘤和结肠肿瘤的生长。 Asp和Asn通过与LKB1直接结合,从而调节LKB1活性,并最终调节AMPK介导的p53 …