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Impact of neurotrophic factors combination therapy on retinitis pigmentosa

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机构: [1]Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China [2]Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing, China
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关键词: Retinitis pigmentosa tropomyosin receptor kinase B tropomyosin receptor kinase C ciliary neurotrophic factor receptor α neurotrophic factors Bax Bcl-2 light chain 3

摘要:
Objective We aimed to determine the location of neurotrophic receptors tropomyosin receptor kinase (Trk)B, TrkC, and ciliary neurotrophic factor receptor (CNTFR)alpha in the retina of retinal degeneration (rd) mice and to explore the dynamic changes of B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X-protein (Bax), and microtubule-associated protein light chain 3 (LC3) expression and ultrastructure in the retina of rd mice intravitreally injected with neurotrophic factors. Methods Rd mice aged 2 and 3 weeks post-natally (PN) received intravitreal injections of neurotrophic factors. Two weeks later, their retinas were harvested for the detection of Bax, Bcl-2, and LC3 mRNA and protein expression. Results TrkB and TrkC expression levels were lower at 3 weeks PN compared with 0, 1, and 2 weeks PN, but CNTFR alpha expression was still detected in certain layers. The three receptors were expressed in different retinal layers at the same timepoint. Bax expression was downregulated in, rhBDNF + rhCNTF, rhBDNF + rhNT-3, groups 2 weeks after intravitreal injection; Bcl-2 expression was upregulated in the rhBDNF + rhCNTF + rhNT-3 group at PN-4w; and LC3 expression was upregulated in rhBDNF + rhCNTF + rhNT-3 groups. Conclusions The combined use of neurotrophic factors had a more significant effect on Bax, Bcl-2, and LC3 expression than the same factors used alone.

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出版当年[2019]版:
大类 | 4 区 医学
小类 | 4 区 医学:研究与实验 4 区 药学
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 医学:研究与实验 4 区 药学
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出版当年[2018]版:
Q4 PHARMACOLOGY & PHARMACY Q4 MEDICINE, RESEARCH & EXPERIMENTAL
最新[2023]版:
Q4 MEDICINE, RESEARCH & EXPERIMENTAL Q4 PHARMACOLOGY & PHARMACY

影响因子: 最新[2023版] 最新五年平均 出版当年[2018版] 出版当年五年平均 出版前一年[2017版] 出版后一年[2019版]

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第一作者机构: [1]Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
通讯作者:
通讯机构: [2]Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing, China [*1]Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing 100730, China.
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