How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts

Hemoglobin is an essential protein to the human body as it transports oxygen to organs and tissues through the bloodstream (Looker et al., 1992). In recent years, there has been an increasing concern regarding the global supply of this vital protein, as blood availability cannot currently meet the h...

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Main Authors: August T. Frost, Irene H. Jacobsen, Andreas Worberg, José L. Martínez
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-11-01
Series:Frontiers in Bioengineering and Biotechnology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fbioe.2018.00186/full
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author August T. Frost
Irene H. Jacobsen
Andreas Worberg
José L. Martínez
author_facet August T. Frost
Irene H. Jacobsen
Andreas Worberg
José L. Martínez
author_sort August T. Frost
collection DOAJ
description Hemoglobin is an essential protein to the human body as it transports oxygen to organs and tissues through the bloodstream (Looker et al., 1992). In recent years, there has been an increasing concern regarding the global supply of this vital protein, as blood availability cannot currently meet the high demands in many developing countries. There are, in addition, several risks associated with conventional blood transfusions such as the presence of blood-borne viruses like HIV and Hepatitis. These risks along with some limitations are presented in Figure 1 (Kim and Greenburg, 2013; Martínez et al., 2015). As an alternative, producing hemoglobin recombinantly will eliminate the obstacles, since hemoglobin-based oxygen carriers are pathogen-free, have a longer shelf-life, are universally compatible and the supply can be adjusted to meet the demands (Chakane, 2017). A stable, safe, and most importantly affordable production, will lead to high availability of blood to the world population, and hence reduce global inequality, which is a focus point of the World Health Organization for the millennium (WHO, 2018). Synthetic biology and metabolic engineering have created a unique opportunity to construct promising candidates for hemoglobin production (Liu et al., 2014; Martínez et al., 2016). This review sets out to describe the recent advances in recombinant hemoglobin production, the societal and the economic impact along with the challenges that researchers will face in the coming years, such as low productivity, degradation, and difficulties in scale-up. The challenges are diverse and complex but with the powerful tools provided by synthetic biology and metabolic engineering, they are no longer insurmountable. An efficient production of cell-free recombinant hemoglobin poses tremendous challenges while having even greater potential, therefore some possible future directions are suggested in this review.
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spelling doaj.art-7ebada1c3d804b03b75763dbbfe4b5732022-12-22T02:37:03ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852018-11-01610.3389/fbioe.2018.00186427543How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production HostsAugust T. Frost0Irene H. Jacobsen1Andreas Worberg2José L. Martínez3Section of Synthetic Biology, Department of Biotechnology and Biomedicine Technical University of Denmark (DTU), Lyngby, DenmarkSection of Synthetic Biology, Department of Biotechnology and Biomedicine Technical University of Denmark (DTU), Lyngby, DenmarkNovo Nordisk Foundation Center for Biosustainability Technical University of Denmark (DTU), Lyngby, DenmarkSection of Synthetic Biology, Department of Biotechnology and Biomedicine Technical University of Denmark (DTU), Lyngby, DenmarkHemoglobin is an essential protein to the human body as it transports oxygen to organs and tissues through the bloodstream (Looker et al., 1992). In recent years, there has been an increasing concern regarding the global supply of this vital protein, as blood availability cannot currently meet the high demands in many developing countries. There are, in addition, several risks associated with conventional blood transfusions such as the presence of blood-borne viruses like HIV and Hepatitis. These risks along with some limitations are presented in Figure 1 (Kim and Greenburg, 2013; Martínez et al., 2015). As an alternative, producing hemoglobin recombinantly will eliminate the obstacles, since hemoglobin-based oxygen carriers are pathogen-free, have a longer shelf-life, are universally compatible and the supply can be adjusted to meet the demands (Chakane, 2017). A stable, safe, and most importantly affordable production, will lead to high availability of blood to the world population, and hence reduce global inequality, which is a focus point of the World Health Organization for the millennium (WHO, 2018). Synthetic biology and metabolic engineering have created a unique opportunity to construct promising candidates for hemoglobin production (Liu et al., 2014; Martínez et al., 2016). This review sets out to describe the recent advances in recombinant hemoglobin production, the societal and the economic impact along with the challenges that researchers will face in the coming years, such as low productivity, degradation, and difficulties in scale-up. The challenges are diverse and complex but with the powerful tools provided by synthetic biology and metabolic engineering, they are no longer insurmountable. An efficient production of cell-free recombinant hemoglobin poses tremendous challenges while having even greater potential, therefore some possible future directions are suggested in this review.https://www.frontiersin.org/article/10.3389/fbioe.2018.00186/fullsynthetic biologymetabolic engineeringyeastprotein productionblood substitutesHBOC
spellingShingle August T. Frost
Irene H. Jacobsen
Andreas Worberg
José L. Martínez
How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
Frontiers in Bioengineering and Biotechnology
synthetic biology
metabolic engineering
yeast
protein production
blood substitutes
HBOC
title How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
title_full How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
title_fullStr How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
title_full_unstemmed How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
title_short How Synthetic Biology and Metabolic Engineering Can Boost the Generation of Artificial Blood Using Microbial Production Hosts
title_sort how synthetic biology and metabolic engineering can boost the generation of artificial blood using microbial production hosts
topic synthetic biology
metabolic engineering
yeast
protein production
blood substitutes
HBOC
url https://www.frontiersin.org/article/10.3389/fbioe.2018.00186/full
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