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1.
Chinese Journal of Cancer Biotherapy ; (6): 1281-1287, 2019.
Article in Chinese | WPRIM | ID: wpr-793205

ABSTRACT

@#肺癌的发病机制非常复杂,目前仍未明确。研究发现miRNA是肿瘤中的一组重要的调节因子,与肺癌的发生发展密 切相关,异常表达后可作为致癌miRNA或抑癌miRNA参与调控信号通路基因的表达,影响肺癌细胞的增殖、迁移、侵袭、转移等 过程。本文就miRNA作为抑癌或致癌基因在肺癌发生发展中机制的最新研究进展进行综述。

2.
Chinese Journal of Cancer Biotherapy ; (6): 236-240, 2019.
Article in Chinese | WPRIM | ID: wpr-793107

ABSTRACT

@# 外泌体是一种纳米级别的生物膜结构,由机体的多种细胞分泌,广泛分布于唾液、血浆、乳汁等体液中。外泌体中含 有蛋白质、mRNA、miRNA、lncRNA、细胞因子、转录因子受体等多种生物活性物质。肿瘤细胞或肿瘤旁细胞分泌的外泌体可将 一些肿瘤特有的生物信息转移到邻近细胞,甚至远处细胞,并且通过这种细胞间通信传递肿瘤的特性,从而促进肿瘤的发生发 展。本综述旨在着重讨论肿瘤细胞及癌旁细胞分泌的含lncRNA的外泌体对肿瘤微环境,肿瘤的生物学特性的影响,为肿瘤的基 础研究及临床诊断治疗提出新的思路。

3.
Chinese Journal of Cancer Biotherapy ; (6): 109-117, 2018.
Article in Chinese | WPRIM | ID: wpr-821343

ABSTRACT

@#[Abstract] MicroRNA (miRNA) is non-coding RNA molecule consisting of 20-25 nucleotides. It plays an important role in regulation of tumorigenesis and progression, including proliferation, differentiation and apoptosis of cancer cells, which directly affect the progress of tumors. Peripheral blood miRNA is relatively more stable, and easier to acquired and detected than tissue miRNA. It is a new generation biomarker for early detection and early diagnosis of tumors. It is also one of the main development directions of research and application in precision medicine. Methods commonly used in peripheral blood miRNA detection are RT-PCR, electrochemical detection, NanoString Technologies, genechip and high-throughput sequencing etc. Multiple miRNAs in peripheral blood are the early diagnostic markers for non-small cell lung cancer, esophageal squamous cell carcinoma, pancreatic cancer, squamous cell carcinoma of the head and neck, ovarian cancer, colorectal cancer, breast cancer, prostate cancer and hematological malignancies. Combined detection of multiple peripheral blood miRNAs, as well as combined detection of tumor-specific miRNAand serological, imaging and other auxiliary methods, can improve the sensitivity and specificity of tumor diagnosis at early stage.

4.
Chinese Journal of Cancer Biotherapy ; (6): 1064-1071, 2018.
Article in Chinese | WPRIM | ID: wpr-801683

ABSTRACT

@#微小RNA(microRNA,miRNA)是一种内源性的长度为18~25个核苷酸的非编码RNA,通过与蛋白质编码基因的 mRNA结合来发挥重要的基因调控作用,与恶性肿瘤的发生发展密切相关。miR-32作为miRNA家族的重要成员,在不同肿瘤中 表达水平存在明显差异,因其与恶性肿瘤的相关性及本身表达的正反作用双向性, 在miRNA领域受到了更多的关注。近年来研 究发现,miR-32对恶性肿瘤细胞的增殖、迁移与侵袭、自噬和凋亡均有影响。此外,miR-32与其上游靶基因、肿瘤代谢及临床诊 断和治疗也有密切的关系。本文就miR-32在恶性肿瘤发生发展中的作用及其机制、临床诊治中应用等最新研究进展作一综述。

5.
Chinese Journal of Cancer Biotherapy ; (6): 945-949, 2018.
Article in Chinese | WPRIM | ID: wpr-812725

ABSTRACT

@# 长链非编码RNA(long non-coding RNA,lncRNA)最初被认为是不具有功能的“转录噪声”,但越来越多的研究发现, lncRNA的失调在很多肿瘤中起着癌基因或抑癌基因的作用,是癌症发展的关键分子。PANDAR作为一种重要的lncRNA受到了 诸多关注。有研究证明,PANDAR在许多肿瘤中特异性表达,在大多数肿瘤中上调,但在非小细胞肺癌中显著下调,PANDAR的 特异性表达与肿瘤大小、TNM分期和总生存率显著相关。本文通过对lncRNAPANDAR在恶性肿瘤细胞中的主要作用模式、 表 达情况、作用机制及对各类肿瘤发生发展的影响进行综述,旨在为临床恶性肿瘤生物学诊治疗提供新的靶标。

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