Dong Li^*1, Fei-fan Sun^*1, Dan Wang^*1,Tao Wang^*, Jing-jing Peng^*, Jian-Qiong Feng^*, Hua Li^*, Chao Wang^†, Dai-jun Zhou^*, Hong Luo^*, Zeng-qiang Fu^*, Tao Zhang^*

Oncology Research, Vol.28, No.7-8, pp. 827-828, 2020, DOI:10.3727/096504021X16280937554409

Abstract Sorafenib, a multityrosine kinase inhibitor, is a standard treatment for advanced hepatocellular carcinoma (HCC), but the clinical response to sorafenib is seriously limited by drug resistance. Programmed death ligand-1 (PD-L1) is one of the most important inhibitory molecules involved in tumor immune evasion. Recently, it has been reported that PD-L1 could play crucial roles in drug resistance of many kinds of cancers. However, the expression, function, and regulation of PD-L1 in sorafenib-resistant hepatoma cells remain unclear. In this study, we reported that PD-L1 was overexpressed in sorafenib-resistant hepatoma cells, and shRNA-mediated PD-L1 depletion attenuated drug resistance and suppressed the migration,… More >

Yanli Wang^*, Jia Li^†, Chunling Xu^†, Xiaomeng Zhang^†

Oncology Research, Vol.28, No.7-8, pp. 823-825, 2020, DOI:10.3727/096504021X16240202940021

Abstract Increasing evidence indicates that the dysregulation of microRNAs is associated with the development and progression of various cancers. MicroRNA-139-5p (miR-139-5p) has been reported to have a tumor suppressive role in many types of cancers. The role of miR-139-5p in ovarian cancer (OC) is poorly understood. The purpose of the present study was to explore the expression of miR-139-5p and its function in OC. The results showed that miR-139-5p expression was markedly downregulated in OC tissues and cell lines. In addition, underexpression of miR-139-5p was significantly associated with FIGO stage, lymph mode metastasis, and poor overall survival of OC patients. Functional… More >

Chang Li^*, Xiaoping Li^†, Shuohui Gao^*, Chang Li^‡, Lianjun Ma^§

Oncology Research, Vol.28, No.7-8, pp. 819-822, 2020, DOI:10.3727/096504021X16240202940003

Abstract Gastric cancer is the fourth most common type of cancer and the second highest leading cause of cancer-related deaths worldwide. It has already been established that miR-133a is involved in gastric cancer. In this study, we investigated the molecular mechanisms by which miR-133a inhibits the proliferation of gastric cancer cells. We analyzed the proliferative capacity of human gastric cancer cells SNU-1 using an MTT assay. Cell apoptosis was determined using flow cytometry. The expression levels of ERBB2, p-ERK1/2, and p-AKT in SNU-1 cells were determined using Western blot analysis. To confirm that ERBB2 is a direct target of miR-133a, a… More >

Weichen Hou^*, Lei Song^†, Yang Zhao^*, Qun Liu^*, Shuyan Zhang^‡

Oncology Research, Vol.28, No.7-8, pp. 815-818, 2020, DOI:10.3727/096504021X16240202939988

Abstract The role of miRNAs in the radiosensitivity of glioma cells and the underlying mechanism is still far from clear. In the present study, we detected six downregulated and seven upregulated miRNAs in the serum after radiotherapy compared with paired serum samples before radiotherapy via miRNA panel PCR. Among these, miR-17-5p was highly reduced (fold change = −4.21). Further, we validated the levels of miR-17-5p in all serum samples with qRT-PCR. In addition, statistical analysis suggested that a reduced miR-17-5P level was positively associated with advanced clinical stage of glioma, incidence of relapse, and tumor differentiation. Moreover, we provided evidence that… More >

Arisha Patel, Mounzer Agha, Anastasios Raptis, Jing-Zhou Hou, Rafic Farah, Robert L. Redner, Annie Im, Kathleen A. Dorritie, Alison Sehgal, James Rossetti, Melissa Saul, Daniel Normolle, Konstantinos Lontos, Michael Boyiadzis

Oncology Research, Vol.28, No.7-8, pp. 811-814, 2020, DOI:10.3727/096504020X15965357399750

Abstract Leukemia relapse 5 years after achieving first complete remission (CR1) is uncommon in patients with acute myeloid leukemia (AML). In this study, we evaluated the outcomes of AML patients with late relapse at our institution and reviewed the literature for these patients. The study cohort consisted of nine AML patients with late relapse. The median interval between CR1 and AML relapse was 6.1 years (range: 5.1–16.2 years). At relapse, the karyotype was different from the initial AML diagnosis in 50% of patients. At the time of AML relapse, seven patients received induction chemotherapy and two patients received hypomethylating agents with… More >

Tsung-Kun Chang^*†, Tzu-Chieh Yin^‡§, Wei-Chih Su^*†, Hsiang-Lin Tsai^*¶, Ching-Wen Huang^*¶, Yen-Cheng Chen^*, Ching-Chun Li^*, Po-Jung Chen^*, Cheng-Jen Ma^*§, Kuo-Hsiang Chuang^#, Tian-Lu Cheng^**, Jaw-Yuan Wang^{*†¶††‡‡§§}

Oncology Research, Vol.28, No.7-8, pp. 801-809, 2020, DOI:10.3727/096504021X16218531628569

Abstract Irinotecan, a topoisomerase inhibitor, is a common cytotoxic agent prescribed for metastatic colorectal cancer (mCRC) patients. Diarrhea is the most common adverse event (AE). The underlying mechanism of irinotecaninduced diarrhea is intestinal mucosal damage caused by SN-38 (active metabolite of irinotecan) hydrolyzed from SN-38G (inactive metabolite) by bacterial -glucuronidase ( G). According to an animal study, silymarin reduces the activity of bacterial G without impairing antitumor efficacy. We conducted a prospective openlabel pilot study to evaluate the effect of silymarin as supplementation in reducing toxicities of mCRC patients undergoing irinotecan-based chemotherapy. We enrolled and randomized 70 mCRC patients receiving first-line… More >

Chunmou Li^*1, Xiaomin Peng^*1, Chuchu Feng^*1, Xilin Xiong^*, Jianxin Li^†, Ning Liao^‡, Zhen Yang^§, Aiguo Liu^¶, Pingping Wu^*, Xuehong Liang^†, Yunyan He^‡, Xin Tian^§, Yunbi Lin^§, Songmi Wang^¶, Yang Li^*

Oncology Research, Vol.28, No.7-8, pp. 791-800, 2020, DOI:10.3727/096504021X16184815905096

Abstract This nonrandomized, multicenter cohort, open-label clinical trial evaluated the efficacy and safety of combined chemotherapy with arsenic trioxide (ATO) in children with stage 4/M neuroblastoma (NB). We enrolled patients who were newly diagnosed with NB and assessed as stage 4/M and received either traditional chemotherapy or ATO combined with chemotherapy according to their own wishes. Twenty-two patients were enrolled in the trial group (ATO combined with chemotherapy), and 13 patients were enrolled in the control group (traditional chemotherapy). Objective response rate (ORR) at 4 weeks after completing induction chemotherapy was defined as the main outcome, and adverse events were monitored… More >

Sarah A. Scuderi^*, Marika Lanza^*, Giovanna Casili^*, Francesca Esposito^†, Cristina Colarossi^‡, Dario Giuffrida^‡, Paterniti Irene^*, Salvatore Cuzzocrea^*,* Emanuela Esposito^*, Michela Campolo^*

Oncology Research, Vol.28, No.7-8, pp. 779-790, 2020, DOI:10.3727/096504021X16161478258040

Abstract Glioma are common malignant brain tumors, among which glioblastoma multiforme (GBM) has the worst prognosis. Different studies of GBM revealed that targeting nuclear factor B (NF- B) induced an attenuation tumor proliferation and prolonged cell survival. TBK1 {TANK [TRAF (TNF (tumor-necrosis-factor) receptorassociated factor)-associated NF- B activator]-binding kinase 1} is a serine/threonine protein kinase, and it is a member of the I B kinase (IKK) family involved in NF- B pathway activation. The aim of this study was to investigate the potential effect of BX795, an inhibitor of TBK1, in an in vitro and ex vivo model of GBM. GBM cell… More >

Hongde Li^*†‡, Yueshuo Li^*†‡, Jianmin Hu^*†‡, Sufang Liu^§, Xiangjian Luo^*†‡¶, Min Tang^*†‡, Ann M. Bode^#, Zigang Dong^#**, Xinqi Liu^††, Weihua Liao^‡‡, Ya Cao^{*†‡¶ §§¶¶}

Oncology Research, Vol.28, No.7-8, pp. 763-778, 2020, DOI:10.3727/096504021X16135618512563

Abstract Epstein–Barr virus (EBV)-encoded latent membrane protein 1 (LMP1) plays an important oncogenic role in the viral latent infection. Recently, increasing evidence indicates that the high expression of LMP1 during EBV lytic cycle is related to the viral lytic replication. However, the mechanism by which LMP1 regulates EBV lytic replication remains unclear. (−)-Epigallocatechin-3-gallate (EGCG) prevents carcinogenesis by directly targeting numerous membrane proteins and effectively inhibits EBV lytic cascade. Here, we demonstrated that LMP1 promotes EBV lytic replication through the downstream signal molecules MAPKs, including ERKs, p38, and JNKs. LMP1 induces the phosphorylation of p53 through MAPKs to enhance the ability of… More >

Huan Ma¹, Cong Nie¹, Ying Chen, Jinmiao Li, Yanjie Xie, Zhixin Tang, Yang Gao, Siming Ai, Yuxiang Mao, Qian Sun, Rong Lu

Oncology Research, Vol.28, No.7-8, pp. 745-761, 2020, DOI:10.3727/096504021X16130322409507

Abstract Cell cycle deregulation is involved in the pathogenesis of many cancers and is often associated with protein kinase aberrations, including the polo-like kinase 1 (PLK1). We used retinoblastoma, an intraocular malignancy that lacks targeted therapy, as a disease model and set out to reveal targetability of PLK1 with a small molecular inhibitor ON-01910.Na. First, transcriptomic analysis on patient retinoblastoma tissues suggested that cell cycle progression was deregulated and confirmed that PLK1 pathway was upregulated. Next, antitumor activity of ON-01910.Na was investigated in both cellular and animal levels. Cytotoxicity induced by ON-01910.Na was tumor specific and dose dependent in retinoblastoma cells,… More >