Jingjing Ding , Xue Wang , Fan Cao , Yeyan Gao , Chuanxi Wang , Ting Xu , Qinyu Ni , Ning Bao , Lei Chen , Liming Tao , Dongwei Liu
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引用次数: 0
Abstract
Purpose
In order to providing an experimental and theoretical bases for the clinical application of FR/NIR in myopia treatment, this work investigated the therapeutic efficacy and underlying mechanisms of far-red/near-infrared light (FR/NIR) intervention in lens-induced myopia (LIM) progression using a LIM guinea pig model.
Methods
In this study, 2-week-old healthy tricolor guinea pigs were randomly assigned to three groups: normal control (NC) group, LIM group and LIM treated with FR/NIR (LIM + FR/NIR) group. The guinea pigs in the LIM and LIM + FR/NIR groups wore a −6.00D lenses on the right eye to establish the LIM model. The guinea pigs in the LIM + FR/NIR group received FR/NIR treatment, while those in the NC group had no intervention. The right eyes were used to experimental study, and the experimental period was 3 weeks. Before and after the experiment, ocular parameters such as refractive status and axial length were measured. The related indexes of the retina and choroid were evaluated, and hematoxylin-eosin (HE) staining was performed to observe the changes in retinal morphological structure. Transcriptome sequencing, RT-qPCR, and immunofluorescence staining were employed to elucidate the cell and molecular mechanisms.
Results
After 3 weeks of intervention, the LIM group developed a relative myopia shift of −6.83D, significantly higher than the −3.66 D shift in the LIM + FR/NIR group. Compared with the NC group, significant changes were observed in multiple ocular parameters of the LIM group. However, the progression was attenuated by FR/NIR treatment. The LIM + FR/NIR group owned the increased retinal/choroidal thickness, the enhanced choroidal blood perfusion, and the preserved retinal morphological structure that resembles to physiological norms. The results of transcriptome sequencing and related testament indicated that FR/NIR could regulate the expression of photoreceptor-related genes and improve photoreceptor function.
Conclusion
FR/NIR can effectively suppresses myopia progression in LIM guinea pigs, maintain retinal/choroidal integrity, and ameliorate ischemic-hypoxic microenvironments. Its mechanism of action may involve regulating photoreceptor-related genes to improve photoreceptor function.
期刊介绍:
Biochemical and Biophysical Research Communications is the premier international journal devoted to the very rapid dissemination of timely and significant experimental results in diverse fields of biological research. The development of the "Breakthroughs and Views" section brings the minireview format to the journal, and issues often contain collections of special interest manuscripts. BBRC is published weekly (52 issues/year).Research Areas now include: Biochemistry; biophysics; cell biology; developmental biology; immunology
; molecular biology; neurobiology; plant biology and proteomics