endoplasmic reticulum homeostasis

Endoplasmic reticulum (ER) stress, caused by accumulation of misfolded proteins and a disruption of calcium homeostasis, has been linked to several neuronal diseases including, Parkinson's, Alzheimer's, and prion diseases. A screen for protective activity against ER stress-dependent cell death identified termitomycamides, extracts from the fruiting bodies of T. titanicus, a notably large edible mushroom that is cultivated symbiotically in the nests of termites Termitomycamide B is a fatty acid isolated from T. titanicus that at a dose of 0.1 μg/ml protects against ER stress-dependent cell death in Neuro2a cells induced by tunicamycin.

β-D-Glucopyranosyl abscisate (ABA-GE) is a hydrolyzable conjugate of abscisic acid (ABA), which predominantly accumulates in the vacuole and likely in the endoplasmic reticulum. The deconjugation of β-D-Glucopyranosyl abscisate enables a swift release of free ABA in response to abiotic stress factors like dehydration and salt stress. β-D-Glucopyranosyl abscisate plays a crucial role in maintaining ABA homeostasis.

BOLD-100 (NKP-1339; IT-139) free base 是一款钌基抗癌药物。作为GRP78应激诱导上调的抑制剂，它破坏内质网(ER)的稳态，从而诱发ER应激和未折叠蛋白反应(UPR)。此外，BOLD-100 free base 干预了内质网应激反应、溶酶体动力学以及细胞自噬(autophagy)间的复杂交互作用。

Orpinolide 是一种withanolide类似物,显示出抗白血病活性.其机制涉及破坏高尔基体内的平衡,这一过程与位于内质网和高尔基膜界面的活性磷脂酰肌醇 4-磷酸信号通路密切相关.