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肝细胞癌 3

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SEER数据库,生存分析,印戒细胞癌,转移,结直肠癌,胃癌 1

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Knockdown of RFC4 inhibits the cell proliferation of nasopharyngeal carcinoma and

《医学前沿(英文)》 2023年 第17卷 第1期   页码 132-142 doi: 10.1007/s11684-022-0938-x

摘要: Nasopharyngeal carcinoma (NPC) is a malignant tumor that mainly occurs in East and Southeast Asia. Although patients benefit from the main NPC treatments (e.g., radiotherapy and concurrent chemotherapy), persistent and recurrent diseases still occur in some NPC patients. Therefore, investigating the pathogenesis of NPC is of great clinical significance. In the present study, replication factor c subunit 4 (RFC4) is a key potential target involved in NPC progression via bioinformatics analysis. Furthermore, the expression and mechanism of RFC4 in NPC were investigated in vitro and in vivo. Our results revealed that RFC4 was more elevated in NPC tumor tissues than in normal tissues. RFC4 knockdown induced G2/M cell cycle arrest and inhibited NPC cell proliferation in vitro and in vivo. Interestingly, HOXA10 was confirmed as a downstream target of RFC4, and the overexpression of HOXA10 attenuated the silencing of RFC4-induced cell proliferation, colony formation inhibition, and cell cycle arrest. For the first time, this study reveals that RFC4 is required for NPC cell proliferation and may play a pivotal role in NPC tumorigenesis.

关键词: nasopharyngeal carcinoma     WGCNA     RFC4     proliferation    

A small-molecule pan-HER inhibitor alone or in combination with cisplatin exerts efficacy against nasopharyngealcarcinoma

《医学前沿(英文)》 2023年 第17卷 第2期   页码 275-289 doi: 10.1007/s11684-022-0945-y

摘要: The abnormal activation of HER family kinase activity is closely related to the development of human malignancies. In this study, we used HER kinases as targets for the treatment of nasopharyngeal carcinoma (NPC) and explored the anti-tumor effects of the novel pan-HER inhibitor HM781-36B, alone or in combination with cisplatin. We found that HER family proteins were positively expressed in tumor tissues of some NPC patients, and the high levels of those proteins were significantly related to poor prognosis. HM781-36B inhibited NPC in vitro and in vivo. HM781-36B exerted synergistic effects with cisplatin on inhibiting proliferation and promoting apoptosis of NPC cells. In NPC xenograft models in nude mice, HM781-36B and cisplatin synergistically inhibited tumor growth. Downregulating the activity of HER family proteins and their downstream signaling pathways and regulating tumor microenvironment may explain the synergistic anti-tumor effects of HM781-36B and cisplatin. In conclusion, our study provides evidence for HER family proteins as prognostic biomarkers and potential therapeutic targets for NPC. The pan-HER inhibitor HM781-36B alone or in combination with cisplatin represents promising therapeutic effects for the treatment of NPC patients, which provides a new idea for the comprehensive treatment of NPC.

关键词: epidermal growth factor receptor     ErbB receptors     HM781-36B     nasopharyngeal carcinoma     molecular targeted therapy     cisplatin    

Comprehensive profiling of EBV gene expression in nasopharyngeal carcinoma through paired-end transcriptome

null

《医学前沿(英文)》 2016年 第10卷 第1期   页码 61-75 doi: 10.1007/s11684-016-0436-0

摘要:

The latent expression pattern of Epstein-Barr Virus (EBV) genes in nasopharyngeal carcinoma (NPC) has been extensively investigated, and the expression of several lytic genes in NPC has been reported. However, comprehensive information through EBV transcriptome analysis in NPC is limited. We performed paired-end RNA-seq to systematically and comprehensively characterize the expression of EBV genes in NPC tissue and C666-1 NPC cell line, which consistently carries EBV. In addition to the transcripts restricted to type II latency infection, the type III latency EBNA3s genes and a substantial number of lytic genes, such as BZLF1, BRLF1, and BMRF1, were detected through RNA-seq and were further verified in C666-1 cells and NPC tissue through real-time PCR. We also performed clustering analysis to classify NPC patient groups in terms of EBV gene expression, which presented two subtypes of NPC samples. Results revealed interesting patterns of EBV gene expression in NPC patients. This clustering was correlated with many signaling pathways, such as those related to heterotrimeric G-protein signaling, inflammation mediated by chemokine and cytokine signaling, ribosomes, protein metabolism, influenza infection, and ECM-receptor interaction. Our combined findings suggested that the expression of EBV genes in NPC is restricted not only to type II latency genes but also to type III latency and lytic genes. This study provided further insights into the potential role of EBV in the development of NPC.

关键词: Epstein-Barr virus     paired-end transcriptome sequencing     latency genes     lytic genes     nasopharyngeal carcinoma    

Alcohol and tea consumption in relation to the risk of nasopharyngeal carcinoma in Guangdong, China

Hong-Lian RUAN, Feng-Hua XU, Wen-Sheng LIU, Qi-Sheng FENG, Li-Zhen CHEN, Yi-Xin ZENG, Wei-Hua JIA,

《医学前沿(英文)》 2010年 第4卷 第4期   页码 448-456 doi: 10.1007/s11684-010-0280-6

摘要: To investigate whether alcohol and tea consumption has an etiological association with nasopharyngeal carcinoma (NPC) in a high-incident population, a large scale case-control study was conducted. The study included 2846 individuals in Guangdong Province, China, with 1387 newly diagnosed cases of NPC and 1459 frequency-matched controls. Exposure histories of alcohol and tea consumption were obtained via personal interviews. Information regarding socio-demographic characteristics (age, sex, education, dialect and household type), family history of NPC, Epstein-Barr virus (EBV) infection, dietary habits and other potential confounding factors was also studied. An analysis was performed using unconditional logistic regression to calculate odds ratios (OR) and 95% confidence intervals (CI). The risk of NPC was found to be associated with habitual alcohol consumption and tea consumption. Tea consumption has been associated with a decreased occurrence of NPC (OR= 0.62), while consumption of alcohol was associated with a complex effect. Specifically, moderate consumption of alcohol was associated with decreased risk of NPC, while overuse, especially strong distillate spirits, appeared to be a risk factor.

关键词: nasopharyngeal carcinoma     case-control study     alcohol consumption     tea consumption    

Technetium-99m-sestamibi SPECT for the diagnosis and follow-up of nasopharyngeal carcinoma

Jing CHEN MD, Guang-Yuan HU MD, Guo-Qing HU MD, Hua WU PhD,

《医学前沿(英文)》 2010年 第4卷 第1期   页码 96-100 doi: 10.1007/s11684-010-0001-1

摘要: This study was to investigate a better way to detect and differentiate primary, residual, recurrent nasopharyngeal carcinoma (NPC) lesions post-radiotherapy in patients with NPC by means of routine computed tomography (CT) in combination with Tc-sestamibi single photon emission computed tomography (Tc-MIBI SPECT). Forty-eight patients with histologically confirmed primary NPC underwent Tc-MIBI SPECT at the 3rd month before and after radiotherapy, and at the 6th month after radiotherapy. All patients had contemporaneous CT examinations. Histopathologic results and/or clinical follow-up data (over 18 months) were used as the golden standard for evaluating residual/recurrent lesions. The radioactive count ratio of nasopharynx to scalp was obtained as the MIBI uptake index (MUI). Receiver operating characteristic analysis was employed to define the cut-off value of MUI for malignancy. With MUI 2.15 as the cut-off point, the accuracy for detecting primary NPC was 94.12%. The mean MUI in the local-regional of the nasopharynx in such negative cases was 1.21±€0.12 at the 3rd month, while the mean MUI was higher in the other 15 patients with histologically confirmed recurrent/residual lesions (MUI=1.40€±€0.16, =4.71, <0.001). The optimal cut-off point of 1.33 of MUI was defined with 89.58% accuracy for differentiating residual/recurrent lesions from the benign process post radiotherapy, while CT evaluations showed an accuracy of 81.25%. A combination of CT and Tc-MIBI SPECT for 37 NPC patients with congruent results showed an accuracy of 97.30% for differentiating residual/recurrent NPC from benign lesions. Tc-MIBI SPECT plays a role in evaluating residual/recurrent lesions post-radiotherapy. The combination of CT and Tc-MIBI SPECT can give more accurate diagnosis in the follow-up of NPC.

关键词: nasopharyngeal carcinoma     diagnosis     follow-up    

三维仿生支架平台的刚度和层尺寸对癌细胞分离的影响 Article

张维冠, 刘子玉, 彭慧芝

《工程(英文)》 2021年 第7卷 第10期   页码 1426-1435 doi: 10.1016/j.eng.2020.09.010

摘要:

癌细胞分离是癌症诊断和治疗的理想手段。除了生化方法,工程化平台是根据癌细胞响应周围微环境物理变化的独特特性将癌细胞与正常细胞分离的有效选择。本研究根据精确控制的设计参数(包括刚度、层数和结构布局),开发了三维(3D)仿生支架平台,用于分离鼻咽癌(NPC43)细胞与永生化鼻咽上皮(NP460)细胞。支架平台上NPC43细胞和NP460细胞的迁移特征表明,NPC43细胞可以挤进10 µm宽、15 µm深的沟槽,而NP460细胞不能。迁移行为的不同主要是由细胞与周围微环境的交互作用不同所导致。NPC43细胞具有丝状伪足样突触,而NP460细胞呈片状形态。使用这些3D仿生平台进行研究发现,在较硬的双层支架平台[顶层为40/10 μm沟脊/沟槽(R/T)栅格,底层为20/10 μm R/T网格]上,NPC43细胞与NP460细胞的分离效率可达89%。此外,通过添加活性条件培养基(ACM)可使细胞具有更高的运动性和变形性,从而将分离效率进一步提高到93%。这些结果表明,研究人员可以利用设计适当的仿生工程化平台分离癌细胞和正常细胞,从而辅助实现癌症诊断和治疗。

关键词: 细胞分离     细胞迁移     鼻咽癌(NPC)     3D支架平台    

Construction and humoral immune response of Epstein-Barr virus latent membrane protein 2 DNA vaccine in mice

Jianqing PAN PhD, Qin ZHANG MD, Daowen WANG MD, PhD,

《医学前沿(英文)》 2009年 第3卷 第4期   页码 390-395 doi: 10.1007/s11684-009-0087-5

摘要: We constructed a eukaryotic expression plasmid encoding Epstein-Barr virus latent membrane protein 2 (EBV, LMP2) and evaluated its effects on humoral immunity. First, the encoding sequence of the EBV was amplified from B95−8 cell RNA by reverse transcription polymerase chain reaction (RT-PCR) and then was directionally cloned into eukaryotic expression vector pcDNA3.1. It was employed to evaluate immune response of the mice inoculated doubly with the DNA vaccine. The serum antibody against LMP2 was detected with enzyme-linked immunosorbent assay (ELISA). The recombinant plasmid pcDNA3.1- was confirmed by the restrictive endonuclease analysis and sequence analysis. The serum titer of IgG antibody against LMP2 epitope in the mice immunized with the DNA vaccine encoding LMP2 was up to 1∶4000. In conclusion, the EBV DNA vaccine can induce a strong humoral immune response in mice.

关键词: Epstein-Barr virus     latent membrane protein 2     nasopharyngeal carcinoma     humoral immunity    

The impact of hypoxia in hepatocellular carcinoma metastasis

null

《医学前沿(英文)》 2014年 第8卷 第1期   页码 33-41 doi: 10.1007/s11684-013-0301-3

摘要:

Hypoxia is a common phenomenon in hepatocellular carcinoma (HCC). Hypoxia stabilizes transcription factor, hypoxia-inducible factor (HIF), to activate gene transcription. Expression of HIF is closely associated with metastasis and poor prognosis in HCC. HIF mediates expression of genes that are involved in every step of HCC metastasis including epithelial-mesenchymal transition, invasion of the extracellular matrix, intravasation, extravasation, and secondar y growth of the metastases. Because HIF is the central regulator of HCC metastasis, HIF inhibitors are attractive tools when used alone or as combined treatment to curb HCC metastasis. This review will summarize the current findings on the impact of hypoxia/HIF in HCC, with a particular focus on cancer metastasis.

关键词: hypoxia     hepatocellular carcinoma (HCC)     metastasis     hypoxia-inducible factor (HIF)    

Osteopontin is a promoter for hepatocellular carcinoma metastasis: a summary of 10 years of studies

null

《医学前沿(英文)》 2014年 第8卷 第1期   页码 24-32 doi: 10.1007/s11684-014-0312-8

摘要:

In this review, we summarize the novel findings from our series of studies on the leading metastasis-related gene, osteopontin (OPN). In our previous gene expression profiling study, OPN was identified as one of the leading genes associated with the metastasis of hepatocellular carcinoma (HCC). We focused on OPN to evaluate its prognostic values and important roles in HCC metastasis. A retrospective study of large cohorts of HCC patients demonstrated that plasma OPN level was one of the leading independent prognostic factors for HCC patients, even in the early stage of HCC, and could serve as a surrogate serologic biomarker for monitoring the treatment response and tumor recurrence after HCC resection. Using both in vitro and in vivoinvestigations, we found that OPN has an important role in metastasis and tumor growth of HCC and is an attractive potential therapeutic target for combating HCC metastasis. We also found that OPN+ HCC cells have much more amplifications at chromosomal regions, and promoter polymorphisms are important in the regulation of OPN expression and tumor growth and lung metastasis of HCC.

关键词: osteopontin (OPN)     hepatocellular carcinoma     metastasis     prognosis     therapeutic target     biomarker     genetic polymorphism    

Natural killer cells in hepatocellular carcinoma: current status and perspectives for future immunotherapeutic

null

《医学前沿(英文)》 2017年 第11卷 第4期   页码 509-521 doi: 10.1007/s11684-017-0546-3

摘要:

Hepatocellular carcinoma (HCC) is currently the fifth most common malignancy and the third leading cause of cancer-related mortalities worldwide. In the last few years, treatments for HCC have significantly improved from a mere surgical resection to a series of minimally invasive therapies and targeted drugs. However, recurrence frequently occurs even upon curative therapeutics, and drug therapies generally produce disappointing results, with the overall prognosis dismal. This challenging clinical scenario warrants new effective and life-prolonging strategies for patients with HCC. Compelling evidence suggests that NK cells play a critical role in the immune function of the liver and in the immune defenses against HCC, indicating that HCC might be an ideal target for NK cell-based immunotherapies. To obtain comprehensive insights into the putative influence of NK cells on HCC, this paper summarizes current knowledge on NK cells in HCC and discusses the usefulness and prospects of NK cell-based immunotherapies. Critical issues that require consideration for the successful clinical translation of NK cell-based therapies are also addressed. If appropriately used and further optimized, NK cell-based therapies could dominate important roles in the future immunotherapeutic market of HCC.

关键词: natural killer cell     hepatocellular carcinoma     immunotherapy    

Effect of traditional Chinese medicine combined with Western therapy on primary hepatic carcinoma: a

null

《医学前沿(英文)》 2017年 第11卷 第2期   页码 191-202 doi: 10.1007/s11684-017-0512-0

摘要:

Primary hepatic carcinoma (PHC) is a common malignant tumor in China. Cancer is comprehensively treated with various therapeutic regimes, including traditional Chinese medicine (TCM). TCM has been widely used to improve the quality of life, delay the time of cancer progression, and prolong the median survival time. This systematic review with meta-analysis aimed to assess the effect of TCM combined with Western therapy on primary hepatic carcinoma. A comprehensive literature search was conducted in six databases, including CNKI, VIP, Wan-Fang Database, CBM, PubMed, and Cochrane library. A total of 44 randomized controlled trials (RCTs) involving 3429 participants suffering from PHC were selected. Meta-analysis results indicated that the overall effect of TCM and Western integrative treatment on PHC was higher than that of Western intervention alone, which can postpone tumor recurrence and metastasis and prolong the overall survival time of patients with PHC. Although the obtained evidence remained weak because of the poor methodological quality of the included studies, this review provided relevant data supporting the efficacy and safety of TCM combined with Western therapies. In future research, individual RCT studies should incorporate accepted standards for trial design and reporting, proper outcome indicators according to international standards, blinding in allocation concealment, and valid follow-up periods.

关键词: traditional Chinese medicine     primary hepatic carcinoma     meta-analysis    

Transcriptional modules related to hepatocellular carcinoma survival: coexpression network analysis

null

《医学前沿(英文)》 2016年 第10卷 第2期   页码 183-190 doi: 10.1007/s11684-016-0440-4

摘要:

We performed weighted gene coexpression network analysis (WGCNA) to gain insights into the molecular aspects of hepatocellular carcinoma (HCC). Raw microarray datasets (including 488 samples) were downloaded from the Gene Expression Omnibus (GEO) website. Data were normalized using the RMA algorithm. We utilized the WGCNA to identify the coexpressed genes (modules) after non-specific filtering. Correlation and survival analyses were conducted using the modules, and gene ontology (GO) enrichment was applied to explore the possible mechanisms. Eight distinct modules were identified by the WGCNA. Pink and red modules were associated with liver function, whereas turquoise and black modules were inversely correlated with tumor staging. Poor outcomes were found in the low expression group in the turquoise module and in the high expression group in the red module. In addition, GO enrichment analysis suggested that inflammation, immune, virus-related, and interferon-mediated pathways were enriched in the turquoise module. Several potential biomarkers, such as cyclin-dependent kinase 1 (CDK1), topoisomerase 2α (TOP2A), and serpin peptidase inhibitor clade C (antithrombin) member 1 (SERPINC1), were also identified. In conclusion, gene signatures identified from the genome-based assays could contribute to HCC stratification. WGCNA was able to identify significant groups of genes associated with cancer prognosis.

关键词: hepatocellular carcinoma     coexpression     module     microarray     prognosis    

Medical oncology management of advanced hepatocellular carcinoma 2019: a reality check

Amy Lee, Fa-Chyi Lee

《医学前沿(英文)》 2020年 第14卷 第3期   页码 273-283 doi: 10.1007/s11684-019-0728-2

摘要: In terms of global cancer-related deaths, hepatocellular carcinoma (HCC) has the fourth highest mortality rate. Up until 2017, treatment of advanced HCC was largely limited to sorafenib, an oral tyrosine kinase inhibitor, with little to no success in the development of alternative treatment options. However, in the past two years, there has been an unprecedented increase in both the number and type of treatment options available for HCC. As of 2019, the US FDA has approved four oral tyrosine kinase inhibitors, two immune checkpoint inhibitors, and one anti-angiogenesis antibody for the treatment of HCC. Even with this new variety, systemic treatment of advanced HCC remains largely unsatisfactory, and the median survival rate stands at approximately one year. The expected breakthrough of using immune checkpoint inhibitors in advanced HCC did not materialize in 2019. The use of immune checkpoint inhibitors in conjunction with oral tyrosine kinase inhibitors or anti-angiogenesis medications is the current clinical research trend, the results of which are eagerly anticipated. Despite limited progress in survival, HCC research is currently experiencing a period of growth and innovation, and there is hope for significant advances in the treatment of advanced HCC as the field continues to develop.

关键词: hepatocellular carcinoma     tyrosine kinase inhibitor     check point inhibitor     anti-angiogenesis    

A case of primary neuroendocrine breast carcinoma that responded to neo-adjuvant chemotherapy

null

《医学前沿(英文)》 2015年 第9卷 第1期   页码 112-116 doi: 10.1007/s11684-014-0345-z

摘要:

Primary neuroendocrine breast carcinoma (NEBC) is a very rare type of breast cancer. Two characteristic biomarkers, namely, CgA and Syn, should be immunohistochemically detected to diagnose NEBC. In this study, a 43-year-old woman with a large mass of 8.3 cm × 2.9 cm in her right breast was reported. The patient was pathologically diagnosed with NEBC after specific markers, including CgA and Syn, as well as few differential markers, such as CK7, ER, PR, C-erbB-2, NSE, and E-cadherin, were immunohistochemically detected. The patient showed a remarkable response to four cycles of neo-adjuvant chemotherapy (partial response based on RECIST criteria) and sequentially underwent modified radical mastectomy. Moreover, the diagnosis and treatment of NEBC based on this case and available related literature were discussed.d literature were discussed.

关键词: neuroendocrine carcinoma     neo-adjuvant therapy     breast    

Expression and clinical implication of PRL-1 and PRL-3 in transitional cell carcinoma of bladder

Bin HAO, Changwei LIU, Huixiang LI

《医学前沿(英文)》 2009年 第3卷 第2期   页码 197-203 doi: 10.1007/s11684-009-0036-3

摘要: The mRNA and protein expression of phosphatase of regenerating liver 1 (PRL-1) and phosphatase of regenerating liver 3 (PRL-3) in transitional cell carcinoma of bladder (BTCC) and normal epithelia of bladder was investigated, and the relationship between the BTCC and pathological changes was clarified. The expression of PRL-1 and PRL-3 mRNA was detected by using reverse transcription polymerase chain reaction (RT-PCR) in 30 cases of BTCC and 10 cases of normal bladder, and the expression of PRL-1 and PRL-3 protein was checked by using immunohistochemistry in 30 cases of BTCC and 15 cases of normal bladder. The expression levels of PRL-1 and PRL-3 mRNA and protein were higher in BTCC than those in normal bladder epithelia ( <0.05). The increased expression of PRL-1 and PRL-3 mRNA and protein was detectable in deep invasion and metastasis of BTCC ( <0.05). There was no correlation between the expression of PRL-1 and PRL-3 and gender, age or recurrence of BTCC (all >0.05). A significantly positive correlation was found between PRL-1 and PRL-3 in BTCC ( <0.05). PRL-1 and PRL-3 are expressed consistently and may contribute to the growth, differentiation, invasion and metastasis of BTCC.

关键词: transitional cell carcinoma of bladder     phosphatase of regenerating liver 1     phosphatase of regenerating liver 3     reverse transcription polymerase chain reaction     immunohistochemistry    

标题 作者 时间 类型 操作

Knockdown of RFC4 inhibits the cell proliferation of nasopharyngeal carcinoma and

期刊论文

A small-molecule pan-HER inhibitor alone or in combination with cisplatin exerts efficacy against nasopharyngealcarcinoma

期刊论文

Comprehensive profiling of EBV gene expression in nasopharyngeal carcinoma through paired-end transcriptome

null

期刊论文

Alcohol and tea consumption in relation to the risk of nasopharyngeal carcinoma in Guangdong, China

Hong-Lian RUAN, Feng-Hua XU, Wen-Sheng LIU, Qi-Sheng FENG, Li-Zhen CHEN, Yi-Xin ZENG, Wei-Hua JIA,

期刊论文

Technetium-99m-sestamibi SPECT for the diagnosis and follow-up of nasopharyngeal carcinoma

Jing CHEN MD, Guang-Yuan HU MD, Guo-Qing HU MD, Hua WU PhD,

期刊论文

三维仿生支架平台的刚度和层尺寸对癌细胞分离的影响

张维冠, 刘子玉, 彭慧芝

期刊论文

Construction and humoral immune response of Epstein-Barr virus latent membrane protein 2 DNA vaccine in mice

Jianqing PAN PhD, Qin ZHANG MD, Daowen WANG MD, PhD,

期刊论文

The impact of hypoxia in hepatocellular carcinoma metastasis

null

期刊论文

Osteopontin is a promoter for hepatocellular carcinoma metastasis: a summary of 10 years of studies

null

期刊论文

Natural killer cells in hepatocellular carcinoma: current status and perspectives for future immunotherapeutic

null

期刊论文

Effect of traditional Chinese medicine combined with Western therapy on primary hepatic carcinoma: a

null

期刊论文

Transcriptional modules related to hepatocellular carcinoma survival: coexpression network analysis

null

期刊论文

Medical oncology management of advanced hepatocellular carcinoma 2019: a reality check

Amy Lee, Fa-Chyi Lee

期刊论文

A case of primary neuroendocrine breast carcinoma that responded to neo-adjuvant chemotherapy

null

期刊论文

Expression and clinical implication of PRL-1 and PRL-3 in transitional cell carcinoma of bladder

Bin HAO, Changwei LIU, Huixiang LI

期刊论文