The Cytotoxicity and Nephroprotective Activity of the Ethanol Extracts of Angelica keiskei Koidzumi Stems and Leaves against the NAPQI-Induced Human Embryonic Kidney (HEK293) Cell Line

Ethnopharmacological Relevance. In Indonesia, Angelica keiskei Koidzumi (ashitaba or Japanese celery) has been traditionally used to maintain health and to achieve longevity. Previously, the chlorophyll-rich extract of A. keiskei planted in Korea exhibited a strong antioxidant activity. The objective of the present study was to investigate the cytotoxicity and nephroprotective activity of the ethanol extract of A. keiskei Koidzumi on the N-acetyl-p-benzoquinone imine (NAPQI) induced human embryonic kidney (HEK293) cell line. Materials and Methods. A. keiskei Koidzumi plant was collected from Mount Rinjani, Lombok, Indonesia, and was identified at the School of Biology Sciences and Technology, Bandung Institute of Technology, Indonesia. Extraction of the stems (ASE) and leaves (ALE) was performed by employing ethanol 70% for 3 × 24 h at 26°C. The cytotoxicity study of the extracts was assessed using the water-soluble tetrazolium salt-8 (WST-8) reagent on the HEK293 cell line, while the nephroprotective activity assay was determined on the NAPQI-induced HEK293 cell line. Results. The WST-8 assay showed that the cytotoxicity IC50 of ASE = 2322 μg/mL and IC50 of ALE = 2283 μg/mL. The nephroprotective activity assay revealed that ASE possesses nephroprotective activity against the NAPQI-induced HEK293 cell line at 1161 μg/mL, while ALE does not show the nephroprotective activity. Conclusion. Taken together, lower concentrations of ASE and ALE (<2000 μg/mL) are not toxic to the HEK293 cell line, and only ASE indicates the activity to protect the HEK293 cell line against NAPQI damage. This Japanese celery could be further explored for its potential as a plant-based nephroprotective drug.

Download Full-text

Comparative Genomics, Infectivity and Cytopathogenicity of American Isolates of Zika Virus that Developed Persistent Infections in Human Embryonic Kidney (HEK293) Cells

International Journal of Molecular Sciences ◽

10.3390/ijms20123035 ◽

2019 ◽

Vol 20 (12) ◽

pp. 3035 ◽

Cited By ~ 4

Author(s):

Hebing Liu ◽

Hsiao-Mei Liao ◽

Bingjie Li ◽

Shien Tsai ◽

Guo-Chiuan Hung ◽

...

Keyword(s):

Cell Line ◽

Zika Virus ◽

Hek293 Cell ◽

Clonal Selection ◽

Gene Mutations ◽

Host Cells ◽

Hek293 Cells ◽

Specific Gene ◽

Human Embryonic Kidney ◽

Hek293 Cell Line

Zika virus (ZIKV) transmission can cause serious fetal neurological abnormalities. ZIKV persistence in various human cells and tissues can serve as infectious reservoirs and post serious threats to public health. The human embryonic kidney (HEK293) cell line with known neuronal developmental properties was readily infected by ZIKV in a strain-dependent fashion. Significant cytopathic effect in HEK293 cells infected by the prototype MR 766 strain of ZIKV resulted in complete loss of cells, while small numbers of HEK293 cells infected by contemporary ZIKV isolates (PRV or FLR strain) continued to survive and regrow to confluency in the culture around two months after initial infection. Most, if not all, of the cells in the two resulting persistently ZIKV-infected HEK293 cell lines tested positive for ZIKV antigen. Compared to HEK293 control cells, the persistently ZIKV-infected HEK293 cells had slower growth rates with some cells undergoing apoptosis in culture. The “persistent ZIKVs” produced constitutively by both PRV and FLR strains ZIKV-infected HEK293 cells had significantly attenuated cell infectivity and/or cytopathogenicity. Comparative genome sequence analyses between the persistent ZIKVs and the original inoculum ZIKVs showed no clonal selection with specific gene mutations in the prolonged process of establishing persistently PRV strain ZIKV-infected HEK293 cells; while selection of ZIKV subclones with mutations in the envelope, protein pr and multiple NS genes was evident in developing persistently FLR strain ZIKV-infected HEK293 cell line. Our study provides molecular insights into the complex interplays of ZIKV and human host cells in establishing ZIKV persistence.

Download Full-text

Integrin αvβ1 Is an Adenovirus Coreceptor

Journal of Virology ◽

10.1128/jvi.75.11.5405-5409.2001 ◽

2001 ◽

Vol 75 (11) ◽

pp. 5405-5409 ◽

Cited By ~ 146

Author(s):

Erguang Li ◽

Swati L. Brown ◽

Dwayne G. Stupack ◽

Xose S. Puente ◽

David A. Cheresh ◽

...

Keyword(s):

Tumor Cell ◽

Cell Line ◽

Hek293 Cell ◽

Recombinant Adenovirus ◽

Cell Types ◽

High Expression ◽

Hek293 Cells ◽

Human Embryonic Kidney ◽

Hek293 Cell Line ◽

Blocking Antibodies

ABSTRACT The human embryonic kidney (HEK293) cell line, commonly used for recombinant adenovirus (Ad) propagation, does not express the Ad coreceptor αvβ3 or αvβ5 integrins, yet these cells are efficiently infected by Ad vectors. Here we demonstrate that Ad binds to HEK293 cells via the fiber receptor CAR and is subsequently internalized via interaction with integrin αvβ1. Function-blocking antibodies directed against αv or β1, but not β3, β5, or α5, integrin subunits block Ad infection and viral endocytosis. Therefore, αvβ1 serves as a coreceptor for Ad infection, and the lack of β3 and/or β5 but the relatively high expression of αvβ1 integrins on certain tumor cell types may explain why these cells are readily transduced by Ad vectors.

Download Full-text

Lemon Juice Mediated Synthesis of 3-Substituted Quinazolin-4(3H)-Ones and their Pharmacological Evaluation

Anti-Cancer Agents in Medicinal Chemistry ◽

10.2174/1871520619666190723151909 ◽

2020 ◽

Vol 19 (16) ◽

pp. 2001-2009 ◽

Cited By ~ 1

Author(s):

Malavattu G. Prasad ◽

C. Vijaya Lakshmi ◽

Naresh K. Katari ◽

Sreekantha B. Jonnalagadda ◽

Manojit Pal

Keyword(s):

Cell Line ◽

Cell Lines ◽

Hek293 Cell ◽

Glyoxylic Acid ◽

Lemon Juice ◽

Cytotoxic Agents ◽

Diverse Range ◽

Hek293 Cell Line ◽

Three Component Reaction ◽

Mcf 7

Background: Compounds containing the quinazoline-4(3H)-one framework constitute an important class of fused N-heterocycles that are found in more than 200 naturally occurring alkaloids. These compounds also show a diverse range of pharmacological activities including antitumor properties. This prompted us to explore a series of quinazolin-4-(3H)-one derivatives having no substituent at C-2 as potential cytotoxic agents. Objective: The objective of this study was to synthesize and evaluate 3-substituted quinazolin-4(3H)-one derivatives for their potential cytotoxic properties. Methods: A convenient method has been developed for the rapid synthesis of this class of compounds under a mild and non-hazardous reaction condition in good yields. The methodology involved a three-component reaction employing isatoic anhydride, amines and glyoxylic acid as reactants in the presence of lemon juice in PEG- 400 at room temperature (25-30ºC) under ultrasound irradiation. All the synthesized compounds were screened via an MTT assay for their potential cytotoxic properties in vitro using the cancerous cell lines e.g. A549, A2780, HepG2, K562, MCF-7 and HCT-116 and a non-cancerous HEK293 cell line. Results: Several compounds such as 3a, 3b, 3d, 3e and 3f showed promising growth inhibition against these cancer cell lines but no significant effects on HEK293 cell line. The IC50 values of these compounds were comparable to doxorubicin whereas 3f significantly induced apoptosis in MCF-7 cells that also was comparable to doxorubicin. Conclusion: An ultrasound-assisted MCR facilitated by lemon juice has been developed to synthesize 3- substituted quinazolin-4(3H)-one derivatives that could act as potential anticancer agents.

Download Full-text

Affecting HEK293 Cell Growth and Production Performance by Modifying the Expression of Specific Genes

Cells ◽

10.3390/cells10071667 ◽

2021 ◽

Vol 10 (7) ◽

pp. 1667

Author(s):

Laura Abaandou ◽

David Quan ◽

Joseph Shiloach

Keyword(s):

Cell Line ◽

Cell Lines ◽

Hek293 Cell ◽

Chinese Hamster ◽

Production Performance ◽

Cellular Processes ◽

Hek293 Cell Line ◽

Global Engineering ◽

Genomic Tools ◽

Serum Free Suspension

The HEK293 cell line has earned its place as a producer of biotherapeutics. In addition to its ease of growth in serum-free suspension culture and its amenability to transfection, this cell line’s most important attribute is its human origin, which makes it suitable to produce biologics intended for human use. At the present time, the growth and production properties of the HEK293 cell line are inferior to those of non-human cell lines, such as the Chinese hamster ovary (CHO) and the murine myeloma NSO cell lines. However, the modification of genes involved in cellular processes, such as cell proliferation, apoptosis, metabolism, glycosylation, secretion, and protein folding, in addition to bioprocess, media, and vector optimization, have greatly improved the performance of this cell line. This review provides a comprehensive summary of important achievements in HEK293 cell line engineering and on the global engineering approaches and functional genomic tools that have been employed to identify relevant genes for targeted engineering.

Download Full-text