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Specialty: Biochemistry
Cancer: Lymphoma

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Total 20 results found since Jan 2013.

The Upregulation of miR-22 alleviates oxygen-glucose deprivation/reperfusion-induced injury by targeting Tiam1 in SH-SY5Y cells
In this study, we evaluated whether miR-22 participates in I/R-induced neuronal injury and the potential mechanism by using an oxygen-glucose deprivation/reperfusion (OGD/R) model in vitro. Our results showed that miR-22 was significantly down-regulated in SH-SY5Y cells suffering from OGD/R. Up-regulation of miR-22 by its specific mimic could protect SH-SY5Y cells against OGD/R-induced injury. The luciferase reporter assay demonstrated that T-cell lymphoma invasion and metastasis 1 (Tiam1) was a direct target of miR-22. MiR-22 mimic obviously inhibited Tiam1 expression in OGD/R-exposed SH-SY5Y cells. Tiam1 siRNA could atte...
Source: Acta Biochim Pol - September 6, 2023 Category: Biochemistry Authors: Jiansong Yin Yu Wan Jing Wang Mei Xue Source Type: research

Characterization of uridine-cytidine kinase like-1 nucleoside kinase activity and its role in tumor growth
Biochem J. 2022 May 18:BCJ20210770. doi: 10.1042/BCJ20210770. Online ahead of print.ABSTRACTUridine-cytidine kinase like-1 (UCKL-1) is a largely uncharacterized protein with high sequence similarity to other uridine-cytidine kinases (UCKs). UCKs play an important role in the pyrimidine salvage pathway, catalyzing the phosphorylation of uridine and cytidine to UMP and CMP, respectively. Only two human UCKs have been identified, UCK1 and UCK2. Previous studies have shown both enzymes phosphorylate uridine and cytidine using ATP as the phosphate donor. No studies have evaluated the kinase potential of UCKL-1. We cloned and pu...
Source: The Biochemical Journal - May 18, 2022 Category: Biochemistry Authors: Emily Matchett Elise C Ambrose Jacki Kornbluth Source Type: research

Surface-Functionalized Polymeric siRNA Nanoparticles for Tunable Targeting and Intracellular Delivery to Hematologic Cancer Cells
Biomacromolecules. 2022 Apr 1. doi: 10.1021/acs.biomac.1c01497. Online ahead of print.ABSTRACTTo date, the application of RNA therapeutics to hematologic malignancies has been challenging owing to the resistance of blood cancer cells against conventional transfection methods. Herein, triple-targeting moiety-functionalized polymeric small interfering RNA (siRNA) nanoparticles were systematically developed for efficient targeted delivery of RNA therapeutics to hematologic cancer cells. Polymeric siRNAs were synthesized using rolling circle transcription and were surface-functionalized with three types of targeting moietiesâ”...
Source: Biomacromolecules - April 1, 2022 Category: Biochemistry Authors: Eunji Kwak Taehyung Kim Kyungjik Yang Young Min Kim Hwa Seung Han Kyung Hoon Park Ki Young Choi Young Hoon Roh Source Type: research

Inhibition of lipogenesis and induction of apoptosis by valproic acid in prostate cancer cells via the C/EBP α/SREBP-1 pathway.
In this study, we aimed to investigate the effects and mechanisms of VPA on cell viability, lipogenesis, and apoptosis in human prostate cancer PC-3 and LNCaP cells. The results showed that VPA significantly reduced lipid accumulation and induced apoptosis of PC-3 and LNCaP cells. Moreover, the expression of CCAAT/enhancer-binding protein α (C/EBPα), as well as sterol regulatory element-binding protein 1 (SREBP-1) and its downstream effectors, including fatty acid synthase (FASN), acetyl CoA carboxylase 1 (ACC1), and anti-apoptotic B-cell lymphoma 2 (Bcl-2), was markedly decreased in PC-3 and LNCaP cells after VPA admini...
Source: Acta Biochimica et Biophysica Sinica - January 20, 2021 Category: Biochemistry Authors: Pang BO, Zhang J, Zhang XI, Yuan J, Shi Y, Qiao L Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

Immunohistochemical localization of prolactin receptor (PRLR) to Hodgkin's and Reed-Sternberg cells of Hodgkin's lymphoma.
In this study, we reported the localization of PRLR to the Hodgkin's and Reed-Sternberg (HRS) cells of Hodgkin's lymphoma (HL), a neoplasm of predominantly B cell origin. Immunohistochemistry performed on 5-μm thick FFPE sections revealed expression of PRLR in HRS cells. Cellular immunofluorescence experiments showed that the HL-derived cell lines, Hs445, KMH2 and L428 overexpressed PRLR. The PRLR immunofluorescent signal was depleted after treating the cell lines with 10 μM of siRNA for 48 h. We also tested whether PRLR is involved in the growth of HL, in vitro. One-way analysis of variance (ANOVA) on cell growth data...
Source: Acta Histochemica - November 28, 2020 Category: Biochemistry Authors: Gharbaran R, Onwumere O, Codrington N, Somenarain L, Redenti S Tags: Acta Histochem Source Type: research

Arctigenin induces necroptosis through mitochondrial dysfunction with CCN1 upregulation in prostate cancer cells under lactic acidosis.
Abstract Arctigenin, a mitochondrial complex I inhibitor, has been identified as a potential anti-tumor agent, but the involved mechanism still remains elusive. Herein, we studied the underlying mechanism(s) of action of arctigenin on acidity-tolerant prostate cancer PC-3AcT cells in the lactic acid-containing medium. At concentration showing no toxicity on normal prostate epithelial RWPE-1 and HPrEC cells, arctigenin alone or in combination with docetaxel induced significant cytotoxicity in PC-3AcT cells compared to parental PC-3 cells. With arctigenin treatment, reactive oxygen species (ROS) levels, annexin V-PE...
Source: Molecular and Cellular Biochemistry - February 16, 2020 Category: Biochemistry Authors: Lee YJ, Nam HS, Cho MK, Lee SH Tags: Mol Cell Biochem Source Type: research

Glucocorticoids attenuate the sensitivity of glucocorticoid-resistant lymphoid cells to doxorubicin via reduction in OCTN2.
In this study, we examined whether GCs affected the sensitivities to vincristine (VCR)/doxorubicin (DOX) and the expression of drug transporters in GC-resistant cells. The dexamethasone (DEX)/prednisolone (PSL)-resistant lymphoid and non-lymphoid cell lines Raji and HL60 were cultured with DEX for 7 days and then treated with VCR or DOX for 3 days. Seven days of DEX treatment increased the IC50s of both VCR and DOX in Raji cells but not in HL60 cells. The mRNA and protein expression levels of organic cation/carnitine transporter (OCTN) 2, one of the drug uptake transporters expressed in both cell lines, were decreased on...
Source: Molecular and Cellular Biochemistry - May 15, 2019 Category: Biochemistry Authors: Akaihata M, Shikama Y, Matsumoto Y, Ono T, Kimura J, Hosoya M Tags: Mol Cell Biochem Source Type: research

PIM1 overexpression in T-cell lymphomas protects tumor cells from apoptosis and confers doxorubicin resistance by upregulating c-myc expression.
In this study, we studied the roles of PIM1 in established T-lymphoma cell lines Jurkat and HUT-78. CCK-8 assay was conducted to evaluate cell survival and flow cytometry was performed to evaluate cell death of TCL cells. siRNAs were used to knockdown the expression of PIM1 and c-myc. qRT-PCR was used to evaluate the mRNA expression levels of c-myc and PIM1. Western blot analysis was used to evaluate the protein expression levels of PIM1, c-myc, STAT3, and phospho-STAT3. Doxorubicin was used to determine the effect of PIM1 on apoptosis. Our results showed that PIM1 expression was markedly enhanced and induced c-myc express...
Source: Acta Biochimica et Biophysica Sinica - July 17, 2018 Category: Biochemistry Authors: Xiang X, Yuan D, Liu Y, Li J, Wen Q, Kong P, Gao L, Zhang C, Gao L, Peng X, Zhang X Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

PKC inhibition of sotrastaurin has antitumor activity in diffuse large B-cell lymphoma via regulating the expression of MCT-1.
In this study, we found that the mRNA and protein expression levels of MCT-1 were visibly decreased after knocking down PKC by siRNA in SUDHL-4 and OCI-LY8 DLBCL cell lines. A selective PKC inhibitor, sotrastaurin, effectively inhibited cell proliferation and induced cell apoptosis in a dose- and time-dependent manner. Meanwhile, we also observed that the cell cycle was arrested in the G1 phase in sotrastaurin-treated cells. In addition, MCT-1 was down-regulated in the sotrastaurin treatment group in vivo. Furthermore, we demonstrated that the PKC inhibitor sotrastaurin induced cell apoptosis and cell cycle arrest in DLBCL...
Source: Acta Biochimica et Biophysica Sinica - March 9, 2018 Category: Biochemistry Authors: Chang G, Zheng J, Xiao W, Chang S, Wei Q, Wu H, Tao Y, Yang G, Xie B, Lan X, Wang Y, Yu D, Hu L, Xie Y, Bu W, Kong Y, Dai B, Hou J, Shi J Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

Gelatin promotes cell aggregation and pro-inflammatory cytokine production in PMA-stimulated U937 cells by augmenting endocytosis-autophagy pathway.
Abstract Gelatin, denatured collagen, temporarily exists in tissues and may well be pathophysiologically involved in tissue remodeling, inflammation or tissue damage. The present study is aimed to investigate possible biological roles of gelatin by examining its effects on monocyte-like histiocytic lymphoma cell line U937. Once stimulated by phorbol 12-myristate 13-acetate (PMA), U937 cells differentiate into macrophage-like cells, changing from non-adherent to adherent cells with extended pseudopodia. Here we pre-treated the cell dishes with gelatin solution for cell culture. Interestingly, we found that PMA-stim...
Source: The International Journal of Biochemistry and Cell Biology - January 4, 2018 Category: Biochemistry Authors: Zhao YL, Lu ZY, Zhang X, Liu WW, Yao GD, Liu XL, Liu W, Wu QJ, Hayashi T, Yamato M, Fujisaki H, Hattori S, Atsuzawa Y, Tashiro SI, Onodera S, Ikejima T Tags: Int J Biochem Cell Biol Source Type: research

Antitumor and chemosensitizing action of 3-bromopyruvate: Implication of deregulated metabolism
Publication date: Available online 19 April 2017 Source:Chemico-Biological Interactions Author(s): Saveg Yadav, Shrish Kumar Pandey, Ajay Kumar, Praveen Kumar Kujur, Rana Pratap Singh, Sukh Mahendra Singh 3-Bromopyruvate (3-BP), brominated derivative of pyruvate, possesses strong antitumor potential, owing to its ability to inhibit multiple target molecules crucial for survival of neoplastic cells. Although, 3-BP displays cytotoxicity against a wide variety of tumors, there is no report with respect to malignancies of thymic origin. Therefore, we investigated its antineoplastic action in vitro against tumor cells of a mur...
Source: Chemico Biological Interactions - April 19, 2017 Category: Biochemistry Source Type: research

BCL6 mediates the effects of Gastrodin on promoting M2-like macrophage polarization and protecting against oxidative stress-induced apoptosis and cell death in macrophages.
Abstract Cerebral palsy (CP) is the most common childhood disability worldwide, yet biomarkers for predicting CP are lacking. By subjecting peripheral blood samples from 62 CP patients and 30 healthy controls to Affymetrix GeneChip(®) PrimeView™ HumanGene Expression Microarray analysis, we identified the novel biomarker B-cell lymphoma 6 (BCL6) as the most upregulated gene in the CP samples. Gastrodin is a traditional Chinese medicine and bioactive compound that promotes adductor angle release, as well as gross and fine motor performance by increasing Gross Motor Function Measure-66 and Fine Motor Function Meas...
Source: Biochemical and Biophysical Research communications - March 14, 2017 Category: Biochemistry Authors: Jia J, Shi X, Jing X, Li J, Gao J, Liu M, Lin CI, Guo X, Hua Q Tags: Biochem Biophys Res Commun Source Type: research