OMER ERDOGAN¹, GULEN MELIKE DEMIRBOLAT², OZGE CEVIK^1,*

BIOCELL, Vol.47, No.5, pp. 1051-1063, 2023, DOI:10.32604/biocell.2023.028129

Abstract Background: Raloxifene, a selective estrogen receptor modulator, is also known to be a lysosomotropic agent. The bioavailability of raloxifene is around 2% due to extensive hepatic transport. Exosomes are nanosized vesicles that are naturally released from cells. Method: In this study, exosomes released from HeLa cervical cancer cells were loaded with raloxifene to increase its bioavailability, and an aptamer was attached to the exosome membrane for targeting only HeLa cells. Characterization of exosomes isolated from HeLa cells was performed by transmission electron microscopy, zeta sizer, and western blotting. In addition, the cytotoxic, apoptotic, autophagic, and lysosomotropic effects of the prepared… More >

YANGYI HE^1,2, DAVID SANCHEZ-LORENTE^3,4,5, MELISSA ACOSTA-PLASENCIA¹, MARC BOADA^3,4,5, ANGELA GUIRAO^3,4,5, RAMON M. MARRADES^4,5,6,7, LAUREANO MOLINS^3,4,5, ALFONS NAVARRO^1,4,5,*

BIOCELL, Vol.47, No.5, pp. 951-957, 2023, DOI:10.32604/biocell.2023.027718

Abstract Tumor-secreted extracellular vesicles (EVs) participate in the metastasis process through different mechanisms, including the preparation of the pre-metastatic niche to grant circulating tumor cells (CTCs) implantation and growth. The study of the metastasis process through the analysis of CTCs and tumor-derived EVs is difficult because of the dilution grade of these elements in peripheral blood. In early-stage lung cancer patients, the tumor-secreted products are even more diluted. An attractive strategy in surgical lung cancer patients is to purify them from a pulmonary tumor-draining vein where they are enriched. The information obtained from the analysis of EVs and CTCs purified from… More >

QIAOLING WU^1,2, ZHAOLEI CUI³, HONGMEI XIA¹, SHAN JIANG¹, JING BAI⁴, ZHUO SHAO⁴, YANG SUN^1,*

BIOCELL, Vol.47, No.5, pp. 1039-1050, 2023, DOI:10.32604/biocell.2023.027494

Abstract Background: Ovarian cancer (OC) is a leading cause of gynecological cancer-linked deaths worldwide. Exosomal miR-1825 and its target gene C-type lectin domain family 5 member A (CLEC5A) are associated with tumorigenesis in cancers that was further probed. Methods: Exosomal miR-1825 expression in exosomes and its impact on overall survival (OS) prediction were determined using Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data. Target genes of miR-1825 were searched in five prediction databases and prognostically significant differentially expressed genes were identified. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were carried out. The… More >

XIN TIAN, XIANGLING HE^*, SHUQIN QIAN, RUNYING ZOU, KEKE CHEN, CHENGGUANG ZHU, ZEXI YIN

BIOCELL, Vol.47, No.5, pp. 1085-1093, 2023, DOI:10.32604/biocell.2023.027090

Abstract Background: The immunomodulatory effects of mesenchymal stem cells (MSCs) and their exosomes have been receiving increasing attention. This study investigated the immunoregulatory effects of human amniotic mesenchymal stem cells (hAMSCs) and their exosomes on phytohemagglutinin (PHA)-induced peripheral blood mononuclear cells (PBMCs). Methods: The hAMSCs used in the experiment were identified by light microscopy and flow cytometry, and the differentiation ability of the cells was determined by Oil Red O and Alizarin Red staining. The expressions of transforming growth factor (TGF)-β, indoleamine 2,3-dioxygenase (IDO), cyclooxygenase-2 (COX-2), hepatocyte growth factor (HGF), and interleukin (IL)-6 were detected by quantitative real-time polymerase chain reaction… More >

JÉRÔME LALOZE^1,2, ALEXIS DESMOULIÈRE^1,*

BIOCELL, Vol.46, No.12, pp. 2701-2704, 2022, DOI:10.32604/biocell.2022.022229

Abstract Advances in regenerative medicine correlate strongly with progress in the use of adipose tissue-derived mesenchymal stem/stromal cells. The range of therapeutic indications has also expanded over recent years. Numerous recent studies have highlighted the primary importance of paracrine secretion by these cells. Though it is interesting to compare the different types of such secretions, we believe that exosomes (extra-cellular vesicles possessing the same properties as their source cells) will likely be the main key in tomorrow’s cell therapy. Exosomes also have many advantages compared to the direct use of cells, making these particles a major target in fundamental and translational… More >

CHANG CHEN^1,#, LIMIN QIAO^2,#, KAIJUN GUO¹, YINGQIU WANG¹, MENGYI YUAN³, BOFAN FU⁴, XIAOBO GAO³, HEMIN NI¹, LONGFEI XIAO^1,*, XIANGGUO WANG^1,*

BIOCELL, Vol.46, No.11, pp. 2415-2423, 2022, DOI:10.32604/biocell.2022.021510

Abstract Endometritis affects the reproductive capacity of dairy cows and leads to serious economic losses in dairy farming. Clarification of the pathogenesis of endometritis is necessary to improve the reproductive efficiency of dairy cows. Exosomes and their miRNAs have been proven to play an important role in inflammatory regulation. Exosomal miR-218 is a differentially expressed miRNA found in endometrial epithelial cells (EECs) under endometrial inflammation. Therefore, we investigated the expression of miR-218 in the uterine tissue of dairy cows, lipopolysaccharide (LPS) treated EECs, exosomal vesicles, and regulation of exosomal miR-218 by targeting TGIF-2 inducible factor homology frame 2 (TGIF2)/transforming growth factor-beta… More >

Haojie Zhang¹, Xiaohong Wang^2,*, Yue Yu², Zhenlin Yang^3,*

Oncologie, Vol.24, No.2, pp. 247-259, 2022, DOI:10.32604/oncologie.2022.020993

Abstract Chemotherapy plays an important role in controlling cancer progression, but the long-term use of chemotherapeutic agents can lead to drug resistance and eventually treatment failure. Therefore, elucidation of the mechanism of drug resistance is the key to solve the problem of chemotherapy resistance. In recent years, exosomes derived from tumor cells have received extensive attention from researchers. In this paper, we reviewed the role and mechanism of exosome-mediated tumor drug resistance in recent years, summarized the related studies of exosome and chemotherapy drug resistance, and focused on several different ways by which exosomes participate in tumor drug resistance. It includes… More >

Jian-Wei Wang, Xiao-Feng Wu, Xiao-Juan Gu, Xing-Hua Jiang

Oncology Research, Vol.27, No.9, pp. 979-986, 2019, DOI:10.3727/096504018X15336368805108

Abstract Cancer-associated fibroblasts (CAFs) play a predominant role in regulating tumor progression. Understanding how CAFs communicate with osteosarcoma is crucial for developing novel approaches for osteosarcoma therapy. Exosomes are able to transmit messages between cells. In this study, we demonstrated that CAFs transfer exosomes to osteosarcoma cells, which promotes osteosarcoma cell migration and invasion. Using a miRNA microarray analysis, we identified 13 miRNAs that are significantly increased in exosomes derived from cancer-associated fibroblasts (CAFs) and corresponding paracancer fibroblasts (PAFs). In vitro studies further validated that the levels of microRNA-1228 (miR-1228) were increased in CAFs, its secreted exosomes, and in recipient osteosarcoma… More >

ISABELLA PANFOLI^1,*, MAURIZIO BRUSCHI², GIOVANNI CANDIANO²

BIOCELL, Vol.46, No.10, pp. 2167-2176, 2022, DOI:10.32604/biocell.2022.020154

Abstract Precision medicine is based on the identification of biomarkers of tumor development and progression. Liquid biopsy is at the forefront of the ability to gather diagnostic and prognostic information on tumors, as it can be noninvasively performed prior or during treatment. Liquid biopsy mostly utilizes circulating tumor cells, or free DNA, but also exosomes. The latter are nanovesicles secreted by most cell types, found in any body fluid that deliver proteins, nucleic acids and lipids to nearby and distant cells with a unique homing ability. Exosomes function in signalling between the tumor microenvironment and the rest of the body, promoting… More >

CARL RANDALL HARRELL^1,#, ANA VOLAREVIC^2,#,*, DRAGICA PAVLOVIC³, VALENTIN DJONOV⁴, VLADISLAV VOLAREVIC^4,5,*

BIOCELL, Vol.46, No.10, pp. 2195-2200, 2022, DOI:10.32604/biocell.2022.020175

Abstract Detrimental immune response has a crucially important role in the development and progression of inflammatory eye diseases. Inflammatory mediators and proteolytic enzymes released by activated immune cells induce serious injury of corneal epithelial cells and retinal ganglion cell which may result in the vision loss. Mesenchymal stem cells (MSCs) are regulatory cells which produce various immunosuppressive factors that modulate phenotype and function of inflammatory immune cells. However, several safety issues, including undesired differentiation and emboli formation, limit clinical use of MSCs. MSC-derived exosomes (MSC-Exos) are nano-sized extracellular vesicles which contain all MSC-derived immunoregulatory factors. Intraocular administration of MSC-Exos efficiently attenuated… More >