中圖分類號(hào)]R739.8 [文獻(xiàn)標(biāo)志碼]A [doi]10.7518/gjkq.2025027
Progressofresearch on theapplication of indocyanine green fluorescence imaging technologyin thesurgicaltreatment of oral squamous cell carcinoma
MaikeliyaAikepaer',MaimaitituxunTuerdil,2
1.DeptofOraldilacalaogaticugeryirstAfatedHosital(Stotologicaltal) ofXinjiangedicalUniversityUrumqi3o54,China2.InstituteoftomatologyXinjiangUgurAutonomousRegion Urumqi0054,in
Supportedby:NationalNaturalScienceFoundationofChina(82360198)
Correspondence:Maimaitituxun Tuerdi,Email:maimaitituxun@aliyun.com [Abstract]The surgical resection of oral squamouscell carcinoma (OSCC) mostly relieson the experienceof clinicians,suchasvisualexamination,palpation,andpreoperativeimagingexaminationReal-timeandobjectiveintraoperativeevaluationmethodsarealsolacking.Indocyaninegren(ICG)isasafeandpollution-freeorganicfluorescentdyethat accumulatesanddevelopsatalesionunder near-infrared(NIR)fluorescence.This techniquecanbeapplied inthevisualizationof primarytumorsand suroundingbloodvesselsand nerves,sentinel lymph-nodebiopsy,cervical lymphnode dissection,andtheevaluationoffree-flapbloodsupplyfortherepairandreconstructionofOSCC.NIRimaging technology may becomea keylink in theearly diagnosis and precise treatment ofOSCC in the future.This article reviews the application ofICG-NIR in OSCC.
[Keywords] indocyanine green;near infrared fluorescence imaging;oral squamous cellcarcinoma
口腔鱗狀細(xì)胞癌(oralsquamouscell carcino-ma,OSCC)是口腔頜面部最常見的惡性腫瘤之一,是頜面部重大疾病之一,其治療以手術(shù)切除為主。切除腫瘤的外科手術(shù)過程中,確定腫瘤侵襲范圍對(duì)術(shù)者至關(guān)重要,而術(shù)中常憑借經(jīng)驗(yàn)及術(shù)前影像學(xué)檢查來判斷手術(shù)范圍,這可能導(dǎo)致切除范圍過大或過小,易造成嚴(yán)重的術(shù)后功能障礙或腫瘤復(fù)發(fā)[1-2]。借助波長為 7 0 0~1 1 0 0 n m 近紅外熒光(nearinfrared,NIR)發(fā)展而來的NIR顯影技術(shù)是一種近年來發(fā)展迅速的臨床輔助手段,常使用熒光性染料如吲哚菁綠(indocyaninegreen,ICG)為顯影劑3。ICG是一種花青素化合物,價(jià)廉且安全,在近紅外區(qū)表現(xiàn)出強(qiáng)烈的光吸收,并具有熒光特性,靜脈或局部注射后,通過其滲透性和滯留性等作用被動(dòng)蓄積在組織中,對(duì)腫瘤及脈管都有良好的成像效果[4]。NIR顯影技術(shù)在頜面外科臨床中具有良好的應(yīng)用前景,本文就其在OSCC領(lǐng)域的應(yīng)用進(jìn)展及未來研究方向進(jìn)行綜述。
1ICG的分子特性
ICG是一種兩親性分子(amphipathicmole-cule),同時(shí)具備親水和親脂特性。當(dāng)濃度低于
時(shí),ICG以單體形式存在,單體形式的ICG的吸收峰約為 7 8 5 n m ;當(dāng)濃度超過
時(shí)會(huì)發(fā)生聚集,聚集體的最大吸光度約為
ICGJ-聚集體(ICGJ-aggregate,IJA)是ICG的衍生物,肉眼下呈現(xiàn)深綠色,而ICG呈現(xiàn)淺綠色。在各種介質(zhì)中,IJA和ICG均在 8 9 2 n m 處顯示出特征峰。與ICG不同,IJA表現(xiàn)出更強(qiáng)的水穩(wěn)定性。生理?xiàng)l件下,靜脈注射后ICG分子與血槳蛋白或脂蛋白發(fā)生聚集聚合,導(dǎo)致吸收光譜主峰紅移至8 0 5 n m 或 8 1 0 n m 左右,光譜相對(duì)穩(wěn)定。上述研究表明ICG分子的熒光強(qiáng)度隨濃度而變化,在人體內(nèi)與不同分子結(jié)合時(shí)具有不同的光學(xué)特性。……