Heme status affects human hepatic messenger RNA and microRNA expression

AIM:To assess effects of heme on messenger RNA(mRNA) and microRNA(miRNA) profiles of liver cells derived from humans.METHODS:We exposed human hepatoma cell line Huh-7 cells to excess iron protoporphyrin(heme)(10 μmol/L) or induced heme deficiency by addition of 4,6-dioxoheptanoic acid(500 μmol/L),a potent inhibitor of aminolevulinic acid dehydratase,for 6 h or 24 h.We harvested total RNA from the cells and performed both mRNA and miRNA array analyses,with use of Affymetrix chips,reagents,and instruments(human genome U133 plus 2.0 and miRNA 2.0 arrays).We assessed changes and their significance and interrelationships with Target Scan,Pathway Studios,and Ingenuity software.RESULTS:Changes in mRNA levels were most numerous and striking at 6 h after heme treatment but were similar and still numerous at 24 h.After 6 h of heme exposure,the increase in heme oxygenase 1 gene expression was 60-fold by mRNA and 88-fold by quantitative reverse transcription-polymerase chain reaction.We found striking changes,especially up-regulation by heme of nuclear erythroid-2 related factor-mediated oxidative stress responses,protein ubiquitination,glucocorticoid signaling,P53 signaling,and changes in RNAs that regulate intermediary metabolism.Fewer mRNAs were down-regulated by heme,and the fold decreases were less exuberant than were the increases.Notable decreases after 24 h of heme exposure were patatin-like phospholipase domain-containing protein 3(-6.5-fold),neuronal PAS domain protein 2(-1.93-fold),and protoporphyrinogen oxidase(-1.7-fold).CONCLUSION:Heme excess exhibits several toxic effects on liver and kidney,which deserve study in humans and in animal models of the human porphyrias or other disorders.

Significance of vascular endothelial growth factor messenger RNA expression in gastric cancer

IM To study VEGF mRNA expression in gastric carcinoma and to clarify the association of its expression with the clinicopathologic features of the disease.METHODS In situ hybridization (ISH) and histochemistry were used to examine and analyze the expression of VEGF mRNA and antigen, and microvessel count (MVC) in 28 cases of gastric carcinomatous tissue in combination with clinical materials.RESULTS Ninteen of 28 gastric carcinomas were positive for VEGF mRNA. VEGF mRNA was mainly expressed in malignant cells and not in normal epithelium of gastric mucosa. Its expression was further increased in tumor cells adjacent to tumor necrosis zones, where stromal cells expressed VEGF mRNA occasionally. There was a close correlation between MVC and VEGF mRNA positivity (P<0005). High VEGF mRNA levels were significantly associated with serosal invasion, lymph node metastasis and TNM staging (P<005, respectively).CONCLUSION VEGF mRNA expression is associated with tumor invasion and metastasis by stimulating angiogenesis in gastric carcinoma.expression; endothelial growth factor.

Expression of alpha-fetoprotein messenger RNA in BEL-7404 human hepatoma cells and effect of L-4-oxalysine on the expression

AIM To investigate alpha-fetoprotein (AFP) mRNA expression in BEL-7404 human hepatoma cells and the effect of L-4-oxalysine (OXL) on the expression.METHODS BEl-7404 human hepatoma cells were maintained in RPMI 1640 media. Human AFP cDNA probe was labelled with digoxigenin-11-dUTP by the random primer labelling method. The expression of AFP mRNA in Bel-7404 cells was determined by an in situ hybridization technique with digoxigenin-labelled human AFP cDNA probe. The positive intensities of AFP mRNA in cells were analyzed by microspectrophotometer and expressed as absorbance at 470nm. For the experiment with OXL, cells were incubated with various concentrations of the agent for 72h.RESULTS Essentially all the hepatoma cells contained AFP mRNA in the cytoplasm, although in various amounts. The specificity of the hybridization reaction was confirmed by control experiments in which the use of RNase-treated BEL-7404 cells, non-AFP-producing cells (HL-60 human leukemia cells) or a nonspecific cDNA probe resulted in negative hybridization. When the cells were treated with OXL (25, 50mg/L), the content of AFP mRNA in the cytoplasm was decreased with the inhibition percentages of 34.3% and 70.1%, respectively (P＜0.05).CONCLUSION AFP mRNA was expressed in BEL-7404 human hepatoma cells and OXL suppressed AFP mRNA expression in the cells.

非编码RNA在肺纤维化过程中的调控作用

背景:截至目前,肺纤维化的发病机制不明,治疗手段或者药物有限。大量研究发现,非编码RNA在肺纤维化的发生发展过程中发挥重要作用。目的:综述近年来非编码RNA在肺纤维化发病机制中的调控作用,深入了解肺纤维化的发病机制。方法:由第一作者应用计算机检索2000-2024年出版的文献,以“非编码RNA,微小RNA,长链非编码RNA,环状RNA,肺纤维化,综述”等为中文检索词检索中国知网、万方和维普数据库;以“ncRNA,miRNA,lncRNA,circRNA,Pulmonary fibrosis,review”等为英文检索词检索PubMed数据库,按照入选标准最终共纳入65篇文献进行综述。结果与结论:肺纤维化作为一种慢性且通常致命的肺部疾病,不仅可能自发产生,也可能是其他疾病的继发结果,主要特点是肺部间质中细胞外基质的异常增生和大量积累。非编码RNA是指由基因组转录出来的RNA分子,这些RNA分子并不涉及蛋白质的编码过程,凭借其调节能力已成为各种生物学现象中的一线分子参与者之一。非编码RNA在肺纤维化的发病机制中扮演着关键角色,微小RNA(miRNA)、长链非编码RNA(lncRNA)和环状RNA(circRNA)可以通过影响基因表达、转录后修饰以及细胞间的信号传导,参与到肺纤维化的发展过程中,为后续探索肺纤维化疾病的具体分子发生机制提供了新方向,为研发肺纤维化疾病的新靶向药物提供了理论依据及新思路。

Non-coding RNAs in acute ischemic stroke:from brain to periphery

Acute ischemic stroke is a clinical emergency and a condition with high morbidity,mortality,and disability.Accurate predictive,diagnostic,and prognostic biomarkers and effective therapeutic targets for acute ischemic stroke remain undetermined.With innovations in high-throughput gene sequencing analysis,many aberrantly expressed non-coding RNAs(ncRNAs)in the brain and peripheral blood after acute ischemic stroke have been found in clinical samples and experimental models.Differentially expressed ncRNAs in the post-stroke brain were demonstrated to play vital roles in pathological processes,leading to neuroprotection or deterioration,thus ncRNAs can serve as therapeutic targets in acute ischemic stroke.Moreover,distinctly expressed ncRNAs in the peripheral blood can be used as biomarkers for acute ischemic stroke prediction,diagnosis,and prognosis.In particular,ncRNAs in peripheral immune cells were recently shown to be involved in the peripheral and brain immune response after acute ischemic stroke.In this review,we consolidate the latest progress of research into the roles of ncRNAs(microRNAs,long ncRNAs,and circular RNAs)in the pathological processes of acute ischemic stroke–induced brain damage,as well as the potential of these ncRNAs to act as biomarkers for acute ischemic stroke prediction,diagnosis,and prognosis.Findings from this review will provide novel ideas for the clinical application of ncRNAs in acute ischemic stroke.

Prognostic significance of preoperative circulating vascular endothelial growth factor messenger RNA expression in resectable hepatocellular carcinoma:A prospective study

AIM:To investigate the prognostic value of vascular endothelial growth factor messenger RNA (VEGF mRNA) in the peripheral blood (PB) of patients with hepatocellular carcinoma (HCC) undergoing curative resection.METHODS:Using a reverse-transcription polymerase chain reaction (RT-PCR)-based assay, VEGF mRNA in the PB was determined prospectively in 50 controls and in 50 consecutive patients undergoing curative resection for HCC.RESULTS:Among the isoforms of VEGF mRNA, VEGF165 and VEGF121 were expressed. By multivariate analysis, a higher level of VEGF165 in preoperative PB correlated with a risk of HCC recurrence with borderline significance (P=0.050)and significantly with recurrence-related mortality (P=0.048);while VEGF121 did not. Other significant predictors of HCC recurrence included cellular dedifferentiation (P=0.033),an absent or incomplete capsule (P=0.020), vascular permeation (P=0.018), and daughter nodules (P=0.006).The other significant parameter of recurrence related mortality was cellular dedifferentiation (P=0.053). The level of circulating VEGF mRNA, however, did not significantly correlate with tumor size, cellular differentiation, capsule,daughter nodules, vascular permeation, necrosis and hemorrhage of tumors.CONCLUSION: The preoperative level of circulating VEGF mRNA, especially isoform VEGF165, plays a significant role in the prediction of postoperative recurrence of HCC.

Is the vascular endothelial growth factor messenger RNA expression in resectable hepatocellular carcinoma of prognostic value after resection?

AIM:To study whether vascular endothelial growth factor messenger RNA (VEGF mRNA) in the hepatocellular carcinoma (HCC) tissues obtained after curative resection has a prognostic value.METHODS: Using a reverse-transcription polymerase chain reaction (RT-PCR)-based assay, VEGF mRNA was determined prospectively in liver tissues of 50 controls and in HCC tissues of 50 consecutive patients undergoing curative resection for HCC.RESULTS: Among the isoforms of VEGF mRNA, VEGF165 and VEGF121 were expressed. By multivariate analysis, a higher level of VEGF165 in HCC tissue correlated with a significant risk of HCC recurrence (P=0.038) and significantly with recurrencerelated mortality (P=0.045); while VEGF121 did not. Other significant predictors of HCC recurrence included cellular dedifferentiation (P=0.033), an absent or incomplete capsule(P=0.020), vascular permeation (P=0.018), and daughter nodules (P=0.006). The other significant variables of recurrence related mortality consisted of vascular permeation (P=0.045),and cellular dedifferentiation (P=0.053). The level of VEGF mRNA in HCC tissues, however, did not significantly correlate with tumor size, cellular differentiation, capsule, daughter nodules,vascular permeation, necrosis and hemorrhage of tumors.CONCLUSION: The expression of VEGF mRNA, especially isoform VEGF165,in HCC tissues, may play a significant and independant role in the prediction of postoperative recurrence of HCC.

The Changes of TGF-α, TGF-β_1 and Basic FGF Messenger RNA Expression in Rabbit Cornea after Photorefractive Keratectomy

Objective : To study the mechanism of haze formation and investigate the expression changes of transforming growth factor-α(TGF-α), transforming growth factor-β1 (TGF-β1) and basic fibroblast growth factor (bFCF) mRNA in corneal epithelium and stroma after photorefractive keratectomy (PRK).Methods: Sixteen white rabbits were randomly divided into 4 groups, and PRK was performed on each eye of 12 rabbits. The haze formation was examined under a slit-lamp microscope at the 1st, 2nd and 3rd month after PRK, and the expressions of TGF-α , TGF-β1 and bFGF mRNA were detected with in situ hybridization.Results : The corneal haze formed at the 1" month after PRK. The most prominent haze formation was observed at the 2nd month, and declined gradually at the 3rd month after ablation. TGF-a mRNA expression was presented on the normal corneal epithelium and not on the corneal stroma. TGF-β1 and bGFG mRNA were expressed by both corneal epithelium and stroma. The capacities for cornea tissue expression of

KRT18与mRNA及长链非编码RNA互作调控椎间盘髓核细胞损伤的机制

背景:椎间盘中差异表达的RNA结合蛋白在椎间盘退变中发挥着关键作用,其中RNA结合蛋白KRT18水平的降低与椎间盘退行性病变相关,但其在椎间盘髓核细胞中的具体作用尚未完全确定。目的:探讨KRT18与mRNA及长链非编码RNA结合互作对椎间盘髓核细胞的影响及机制。方法:对因腰部骨折或椎间盘退行性病变而接受椎间融合术的患者进行人体髓核组织取样获得正常髓核细胞和退变髓核细胞,并进行iRIP-seq、功能富集分析以及DNA微阵列分析,随后根据分析结果在髓核细胞中敲低KRT18,通过蛋白免疫印迹及qRt-PCR在蛋白和RNA水平检测相关基因水平的表达。结果与结论:通过iRIP-seq分析发现GUAAUC和AGCCUC序列中存在大量的KRT18结合位点,表明KRT18可参与调控RNA的转录、翻译、稳定性或在细胞信号传导途径中发挥作用。其能够与成熟的mRNA稳定结合,其中表达较高的基因包括CRLF1及IGFBP4等,同时与其结合的长链非编码RNA的峰值基因包括SNHG25、SNHG12、NEAT1、USP32、EIF4A2和CDH4,这些基因多涉及细胞凋亡、炎症等多种生物过程,并且能介导细胞外基质代谢的相关通路,KRT18能够调控它们的稳定性、转运、翻译、剪接等多个方面的功能,进而影响基因的表达和细胞功能。实验结果验证了在髓核细胞中敲低KRT18,细胞外基质代谢水平被抑制出现失衡,导致体外椎间盘退变。该研究首次从KRT18与mRNA及长链非编码RNA结合的角度探讨其调控机制,并推测了KRT18在椎间盘退变发病机制中的潜在功能,为今后KRT18关键功能的研究奠定了基础。

CFPD Carrying Out the Mission and Responsibilities of “Messenger of People-to-People Connectivity” and Participating in International Cooperation against COVID-19

In 2020,as COVID-19 spread in the globe,China Foundation for Peace and Development(CFPD)actively responded to the Joint Action for Defeating the COVID-19 within the Framework of the Silk Road Community Building Initiative launched by China NGO Network for International Exchanges(CNIE),gave full play to its own advantages.

RNA pull-down联合质谱分析lncRNA HSFAS在增生性瘢痕中的作用及机制

背景:课题组前期研究发现,增生性瘢痕特异性长链非编码RNA HSFAS是一种可用于增生性瘢痕诊断的新型生物标志物,但其如何在增生性瘢痕中发挥作用尚不清楚。目的:探讨长链非编码RNA HSFAS在增生性瘢痕中的作用及机制。方法:临床收集3例行增生性瘢痕组织切除手术患者的新鲜增生性瘢痕皮肤组织和增生性瘢痕旁正常皮肤组织标本,应用免疫荧光技术检测两种皮肤组织冰冻切片中长链非编码RNA HSFAS的表达。应用酶消化法体外分离增生性瘢痕皮肤组织与正常皮肤组织原代成纤维细胞,采用qRT-PCR检测细胞中长链非编码RNA HSFAS mRNA表达,通过RNA pull-down联合质谱技术检测与长链非编码RNA HSFAS相互结合的蛋白,利用GO和KEGG分析长链非编码RNA HSFAS参与增生性瘢痕进展的主要功能和通路,通过catRAPID和RPISeq网站分析确定长链非编码RNA HSFAS与蛋白的靶向结合。结果与结论:①与正常皮肤组织相比,增生性瘢痕组织中的长链非编码RNA HSFAS表达升高(P<0.05);与正常皮肤组织来源成纤维细胞相比,增生性瘢痕组织来源成纤维细胞中长链非编码RNA HSFAS mRNA表达升高(P<0.05);②RNA pull-down联合质谱技术明确与长链非编码RNA HSFAS相互结合的蛋白有510个;GO和KEGG分析结果显示:这些蛋白主要涉及RNA剪接和加工、染色体合成和分离、细胞周期等过程,其中涉及RNA剪接和加工的蛋白有支架附着因子B2和DICER1,并且与长链非编码RNA HSFAS的结合分数较高;生物信息学技术分析验证结果显示,长链非编码RNA HSFAS与支架附着因子B2和DICER1蛋白存在相互结合;③结果显示,长链非编码RNA HSFAS可能通过与支架附着因子B2和DICER1蛋白相互结合调控RNA剪接和加工修饰影响基因表达,从而促进增生性瘢痕的发生发展。

长链非编码RNA在急性肺损伤中的作用及分子调控机制研究进展

急性肺损伤(ALI)是临床上常见的危重症之一。长链非编码RNA(lncRNA)是一类长度超过200个核苷酸的非蛋白质编码RNA,在染色质形成、转录和转录后翻译等基因表达水平直接或间接参与ALI的发生发展。lncRNA核富集丰富转录物1、lncRNA HOX转录反义基因间RNA及lncRNA牛磺酸上调1等lncRNA可作为竞争性内源RNA,与miR-26a-5p、miR-17-5p及miR-34b-5p等微小RNA结合,调节Wnt1诱导的信号通路蛋白1、Rho关联含卷曲螺旋结合蛋白激酶1蛋白及自噬相关蛋白等下游相关蛋白的表达,参与ALI的发生发展。LncRNA可能通过调控DNA甲基化、组蛋白修饰,在表观遗传水平参与ALI的发生发展;L通过组装转录激活因子和抑制因子,调节白细胞介素6(IL-6)、IL-17、含半胱氨酸的天冬氨酸蛋白水解酶3/9等蛋白质的转录,在转录水平参与ALI的发生发展;与多种RNA结合蛋白相互作用,在转录后水平调控ALI的发生发展。

外泌体来源非编码RNA对骨关节炎微环境的作用及临床应用进展

背景:骨关节炎是一种常见的关节退行性疾病,其发生发展的病因学机制尚不清楚。早期骨关节炎的及时诊治十分重要,目前尚无确切有效的方法。外泌体来源广泛,其中包含非编码RNA(Non-coding RNAs,ncRNAs),如微小RNAs、环状RNAs和长链非编码RNAs。外泌体ncRNAs可直接从原始细胞递送至邻近或远程细胞,通过细胞间通讯调节细胞活性,在重塑骨关节微环境中具有重要的调控作用。目的:总结外泌体来源ncRNAs对骨关节炎关节内微环境的干预作用,以及在临床应用中取得的进展,阐明其在骨关节炎诊治方面的潜力。方法:以“exosomes,non-coding RNA,osteoarthritis,application,signal pathway,synovial fluid,cartilage cells,cartilage matrix,subchondral bone,mechanism”为检索词在PubMed数据库中进行检索,最终纳入66篇相关文献进行综述分析。结果与结论:①外泌体来源ncRNAs在骨关节炎的发病过程中对关节内微环境具有重要调控作用,主要体现在外泌体ncRNAs调控关节内炎症反应、软骨细胞及软骨基质的退化,软骨下骨重塑和细胞间通讯。②外泌体中的ncRNAs可以作为骨关节炎的生物标志物,帮助骨关节炎的早期诊断和监测疾病进展与预后。③外泌体ncRNAs可作为骨关节炎的治疗靶点,外泌体携带miRNAs递送到关节的软骨细胞及软骨基质,发挥调控作用。④外泌体ncRNAs可以通过调控基因表达、促进细胞间通讯,提高软骨组织工程的效果,修复或再生受损软骨。⑤未来研究者应继续发掘外泌体来源ncRNAs对骨关节炎的干预机制,并可结合最新软骨组织工程的研究成果应用到临床之中,这将有效帮助解决骨关节炎患者的病痛。

RNA结构对RNA沉默效率的影响

小RNA(small RNA,sRNA)介导的RNA沉默或RNA干扰(RNA silencing or RNA interference,RNAi)是真核生物基因表达调控的保守机制。内源或外源双链RNA(double-stranded RNA,dsRNA)被加工成sRNA,sRNA通过碱基互补配对识别靶标基因mRNA或DNA,通过降解mRNA、抑制翻译或者DNA甲基化在转录后或者转录水平调控基因表达。由于sRNA作用靶标特异性,RNAi技术被广泛地应用于基因功能研究、生物医药、作物分子设计育种以及开发新型农药等领域。自然界中sRNA能够在不同物种间传递并发挥作用,这一现象为RNAi应用技术的开发提供了理论基础。研究发现,dsRNA诱导RNAi的效率受多种因素影响,例如长度、剂量以及施用方式等。在细胞中,RNA结构的复杂性决定了其功能的多样性。本文概述了基于RNAi的作物病害防控技术的原理,包括宿主诱导的基因沉默(host-induced gene silencing,HIGS)技术、喷施诱导的基因沉默(spray-induced gene silencing,SIGS)技术和微生物诱导的基因沉默(microbe-induced gene silencing,MIGS)技术;总结了靶标RNA和sRNA结构影响RNAi效率的实验证据,以期加深对RNA结构影响RNAi效率地理解,为靶标筛选以及dsRNA设计提供经验,为开发高效RNAi技术提供参考;最后归纳了RNA结构检测和预测的代表性方法,为辅助设计高效诱导RNAi的dsRNA提供方法。

小细胞外囊泡及其携带的非编码RNA在非酒精性脂肪性肝病中的作用

小细胞外囊泡(small extracellular vesicles,sEVs)是由细胞分泌的一种细胞外囊泡,产生于多泡体,多泡体与质膜融合并释放到细胞外基质。由于小细胞外囊泡可以携带分子质量相对较小的核酸、蛋白质、脂质,能够执行细胞间物质传递、细胞间通讯等功能。因此,小细胞外囊泡及其携带的非编码RNA不仅参与细胞正常生理过程,也可以在多种疾病的发生发展过程中起重要作用。本文综述了小细胞外囊泡在非酒精性脂肪性肝病(NAFLD)中的作用,小细胞外囊泡及其携带的非编码RNA不仅有望成为NAFLD诊断的标志物,同时也具有治疗NAFLD的潜在作用,或能为治疗NAFLD提供新思路。

非编码RNA在颞下颌关节炎中的研究进展

颞下颌关节炎(temporomandibular joint osteoarthritis,TMJOA)是一种临床常见疾病,但发病机制尚不明确且缺乏有效的治疗手段,给患者带来很大困扰。因此,探究TMJOA的发病机制,寻找有效的治疗方法具有重要意义。近年来的研究表明,非编码RNA(noncoding RNA,ncRNA)参与调控TMJOA的发生、发展,在其诊断和治疗方面具有巨大潜力,因此有望成为新的诊断标志物和治疗靶标。本文将对ncRNA在TMJOA中的研究进展作一综述。

细胞外囊泡携带非编码RNA调控破骨细胞的活化

背景:目前已证明破骨细胞活化在骨骼系统相关疾病中发挥着重要的作用,胞外囊泡携带非编码RNA调控破骨细胞活化的机制仍未完全阐明。目的:阅读并总结国内外相关文献,按细胞外囊泡中不同的非编码RNA在不同疾病中调控破骨细胞活化进行综述,为后续研究提供一定的方向。方法:以“非编码RNA,miRNA,lncRNA,circRNA,snoRNA,破骨细胞,细胞外囊泡,外泌体,膜微粒,凋亡小体”为检索词检索中国知网、万方、维普等数据库,以“extracellular vesicles,exosome,microparticle,apoptotic bodies,non-coding RNA,miRNA,lncRNA,circRNA,snoRNA,osteoclast”为检索词检索Pub Med等数据库,最终纳入71篇文献进行综述。结果与结论:(1)破骨细胞的活化受多种因素影响,其中非编码RNA调控破骨细胞活化的具体机制尚未明确。(2)细胞外囊泡可以由成骨细胞、骨髓间充质干细胞、肿瘤细胞等多种细胞分泌,作为细胞间通讯的一种载体,能够携带非编码RNA对破骨细胞活化进行调控。(3)目前关于细胞外囊泡携带非编码RNA调控破骨细胞活化的疾病研究中,多数为骨质疏松,其次为肿瘤骨转移,而非编码RNA的种类又以mi RNA最多。(4)细胞外囊泡携带长链非编码RNA、环状RNA及核仁小RNA调控破骨细胞活化的相关研究相对较少,其调控机制主要为竞争性内源RNA机制。(5)综上,深入研究细胞外囊泡携带非编码RNA对破骨细胞活化的调控机制,有助于找到治疗骨骼系统相关疾病的关键靶点。

非编码小RNA在口腔黏膜下纤维性变中的研究进展

口腔黏膜下纤维性变(oral submucous fibrosis,OSF)是口腔黏膜最常见的癌前病变之一,其发病机制至今尚未完全阐明。非编码小RNA(small non-coding RNAs,SncRNAs)是一类不编码蛋白质的RNA分子,已被广泛报道参与多种人类疾病的调控。越来越多的研究表明多种SncRNAs在OSF发病过程中发挥重要作用。现有研究表明,微RNA(microRNAs,miRNAs)通过调控相关转录因子和基因表达或上皮间充质转化来调控成纤维细胞(fbroblasts,FB)活化而参与OSF疾病进展;长非编码RNA(long noncoding RNAs,lncRNAs)通过调控转化生长因子-β/母体抗瘫抑制因子(transforming growth factor-β/suppressor of mothers against decapentaplegic,TGF-β/Smad)信号通路或与miRNA相互作用参与OSF的发生发展;环状RNA(circular RNAs,circRNAs)通过与miRNA相互作用在OSF中发挥作用;tRNA衍生的小RNA(tRNA-derived small RNAs,tsRNAs)参与多种纤维化疾病的进展,但其在OSF中的具体作用机制仍需进一步探索。未来仍需重点关注SncRNAs介导OSF进展的作用靶点,探究其对OSF的作用功能及分子机制,以期为诊断和治疗OSF提供新思路。