{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nAlthough the provided abstracts focus on distinct microRNA‐ and Golgi‐related pathways, none of them directly investigate or mention MIR6821. One study (PMID:"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "elucidated the role of the miR34a/GOLPH3 axis in urothelial bladder cancer where downregulation of miR34a led to GOLPH3 overexpression, enhanced cancer stem cell properties, and ultimately conferred chemoresistance and tumor recurrence. This work demonstrates how a microRNA network can modulate drug resistance through its effects on target gene regulation.\n"}]}, {"type": "t", "text": "\n"}, {"type": "p", "children": [{"type": "t", "text": "\nAnother investigation (PMID:"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "focused on the cellular response to oxidative stress, revealing that the Golgi protein GOLPH3 is upregulated in response to oxygen-glucose deprivation and reoxygenation. The study showed that elevated GOLPH3 initiates stress-induced changes including a shift in LC3 processing and increased reactive oxygen species (ROS) production, thereby contributing to autophagy and apoptosis. This work reinforces a role for Golgi-associated proteins in sensing and propagating cell stress signals.\n"}]}, {"type": "t", "text": "\n"}, {"type": "p", "children": [{"type": "t", "text": "\nA third study (PMID:"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "explored associations between microRNA signatures and coronary calcium score, a clinical indicator of atherosclerotic plaque burden in patients with familial hypercholesterolemia, suggesting that specific miRNA profiles may serve as biomarkers for cardiovascular disease risk. Although these studies underscore the significance of microRNAs in regulating key cellular and pathological processes, none provide insights into the function of MIR6821. As such, the specific role of MIR6821 in these or related pathways remains to be characterized by future research.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Qing Zhang, Junlong Zhuang, Yongming Deng, et al. "}, {"type": "b", "children": [{"type": "t", "text": "miR34a/GOLPH3 Axis abrogates Urothelial Bladder Cancer Chemoresistance via Reduced Cancer Stemness."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Theranostics (2017)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.7150/thno.21713"}], "href": "https://doi.org/10.7150/thno.21713"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "29187903"}], "href": "https://pubmed.ncbi.nlm.nih.gov/29187903"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Ting Li, Hong You, Xiaoye Mo, et al. "}, {"type": "b", "children": [{"type": "t", "text": "GOLPH3 Mediated Golgi Stress Response in Modulating N2A Cell Death upon Oxygen-Glucose Deprivation and Reoxygenation Injury."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Mol Neurobiol (2016)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1007/s12035-014-9083-0"}], "href": "https://doi.org/10.1007/s12035-014-9083-0"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25633094"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25633094"}]}, {"type": "r", "ref": 3, "children": [{"type": "t", "text": "Rafael Escate, Teresa Padró, Leopoldo Pérez de Isla, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Circulating miR-6821-5p levels and coronary calcification in asymptomatic familial hypercholesterolemia patients."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Atherosclerosis (2024)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.atherosclerosis.2024.117502"}], "href": "https://doi.org/10.1016/j.atherosclerosis.2024.117502"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "38513437"}], "href": "https://pubmed.ncbi.nlm.nih.gov/38513437"}]}]}]}