Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1

Representatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for an adaptive immune system, the immune regulator...

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Main Authors: Courtney Bennett, Ashby B. Bodine, Marissa Ciesla, Philip Adams, Brittany Leigh, Stephanie R. Leggett, Jodi Miedema, Theresa Cantu, Carl A. Luer, Jennifer E. Yordy, Catherine J. Walsh
Format: Article
Language:English
Published: MDPI AG 2013-08-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/11/9/3224
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author Courtney Bennett
Ashby B. Bodine
Marissa Ciesla
Philip Adams
Brittany Leigh
Stephanie R. Leggett
Jodi Miedema
Theresa Cantu
Carl A. Luer
Jennifer E. Yordy
Catherine J. Walsh
author_facet Courtney Bennett
Ashby B. Bodine
Marissa Ciesla
Philip Adams
Brittany Leigh
Stephanie R. Leggett
Jodi Miedema
Theresa Cantu
Carl A. Luer
Jennifer E. Yordy
Catherine J. Walsh
author_sort Courtney Bennett
collection DOAJ
description Representatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for an adaptive immune system, the immune regulatory compounds they possess may represent the earliest evolutionary forms of novel compounds with the potential for innovative therapeutic applications. Conditioned medium, generated from short term culture of cells from the epigonal organ of bonnethead sharks (Sphyrna tiburo), has been shown to have potent reproducible cytotoxic activity against a variety of human tumor cell lines in vitro. Existing data suggest that epigonal conditioned medium (ECM) exerts this cytotoxic activity through induction of apoptosis in target cells. This manuscript describes apoptosis induction in a representative tumor cell line, Jurkat E6-1, in response to treatment with ECM at concentrations of 1 and 2 mg/mL. Data indicate that ECM exposure initiates the mitochondrial pathway of apoptosis through activation of caspase enzymes. Future purification of ECM components may result in the isolation of an immune-regulatory compound with potential therapeutic benefit for treatment of human cancer.
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spelling doaj.art-f284b3bd6ffb469486ff6065f00aa4802022-12-22T04:25:05ZengMDPI AGMarine Drugs1660-33972013-08-011193224325710.3390/md11093224Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1Courtney BennettAshby B. BodineMarissa CieslaPhilip AdamsBrittany LeighStephanie R. LeggettJodi MiedemaTheresa CantuCarl A. LuerJennifer E. YordyCatherine J. WalshRepresentatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for an adaptive immune system, the immune regulatory compounds they possess may represent the earliest evolutionary forms of novel compounds with the potential for innovative therapeutic applications. Conditioned medium, generated from short term culture of cells from the epigonal organ of bonnethead sharks (Sphyrna tiburo), has been shown to have potent reproducible cytotoxic activity against a variety of human tumor cell lines in vitro. Existing data suggest that epigonal conditioned medium (ECM) exerts this cytotoxic activity through induction of apoptosis in target cells. This manuscript describes apoptosis induction in a representative tumor cell line, Jurkat E6-1, in response to treatment with ECM at concentrations of 1 and 2 mg/mL. Data indicate that ECM exposure initiates the mitochondrial pathway of apoptosis through activation of caspase enzymes. Future purification of ECM components may result in the isolation of an immune-regulatory compound with potential therapeutic benefit for treatment of human cancer.http://www.mdpi.com/1660-3397/11/9/3224epigonal organbonnethead sharkJurkatapoptosistumor cell line
spellingShingle Courtney Bennett
Ashby B. Bodine
Marissa Ciesla
Philip Adams
Brittany Leigh
Stephanie R. Leggett
Jodi Miedema
Theresa Cantu
Carl A. Luer
Jennifer E. Yordy
Catherine J. Walsh
Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
Marine Drugs
epigonal organ
bonnethead shark
Jurkat
apoptosis
tumor cell line
title Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
title_full Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
title_fullStr Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
title_full_unstemmed Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
title_short Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1
title_sort epigonal conditioned media from bonnethead shark sphyrna tiburo induces apoptosis in a t cell leukemia cell line jurkat e6 1
topic epigonal organ
bonnethead shark
Jurkat
apoptosis
tumor cell line
url http://www.mdpi.com/1660-3397/11/9/3224
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