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REGENERATIVE MEDICINE:<br />

ENERGISING TECHNOLOGY<br />

EVOLUTION TOWARDS<br />

FUTURE MEDICINE<br />

by Cecilia Van Cauwenberghe and Sudeep Basu<br />

Although still demanding more specialisation for both<br />

scientists and clinicians, regenerative medicine is<br />

destined to address the most concerning challenges of<br />

current medical therapies.<br />

Cecilia Van Cauwenberghe (cecilia.vancauwenberghe@frost.com), PhD, is an Associate<br />

Fellow, Innovation Services in the TechVision Group at Frost & Sullivan.<br />

Sudeep Basu, PhD, is Global Practice Leader, Innovation Services in the TechVision Group<br />

at Frost & Sullivan.<br />

Focus area 1: Technology<br />

synergy<br />

What are the most prospective<br />

technologies empowering<br />

regenerative medicine?<br />

Developments in stem cell<br />

technology and tissue engineering<br />

combine advanced biomaterials with<br />

small molecules and biologics to<br />

replace or regenerate human tissues<br />

and organs and restore their<br />

functions. Regenerative medical<br />

approaches represent perhaps the<br />

most valuable technological<br />

synergies that have emerged. Some<br />

key innovations in the regenerative<br />

medicine space proving this<br />

remarkable technology synergy are<br />

described in the Table 1.<br />

Lewis et al. 1 illustrate such synergy<br />

among stem cell research, threedimensional<br />

(3D) bioprinting and<br />

nanobiosensing. Adjacent<br />

technologies such as 3D bioprinting<br />

have been used to shape 3D<br />

spheroid cultures. Provided with<br />

magnetic nanoparticles, these<br />

cultures are grown emulating<br />

original environment, keeping the<br />

cells undifferentiated over long<br />

periods before being placed into<br />

the desired tissue ecosystem. They<br />

are then activated to migrate<br />

towards the injured tissue and begin<br />

to differentiate.<br />

Among different types of<br />

nanomaterials, Graphene has<br />

proven to be biocompatible and<br />

conducive scaffolds for stem cells.<br />

Menaa et al. 2 highlight the role of<br />

this two-dimensional nanomaterial in<br />

biomedical research owing to its<br />

intrinsic properties. Notable<br />

advantages include promoting stem<br />

cell adhesion, growth, expansion<br />

and differentiation, without affecting<br />

cell viability.<br />

Why induced pluripotent<br />

stem cells (iPSCs) are in the<br />

spotlight<br />

Pluripotent stem cells can<br />

potentially differentiate themselves<br />

to produce any cell or tissue. In<br />

2006, Yamanaka et.al demonstrated<br />

that pluripotency could be induced<br />

in adult cells using just four<br />

embryonic transcription factors.<br />

Since then, more than 5400 papers<br />

related to iPSCs have been<br />

published worldwide 3 , depicting<br />

progress in the field 4 . Following<br />

academic trends, the development<br />

of cell-based medicines using iPSCs<br />

became one of the main goals<br />

targeted by companies working in<br />

the field of regenerative medicine.<br />

There are several advantages to<br />

iPSCs over pluripotent stem cells.<br />

Directly generated from patient<br />

somatic cells, the utilisation of iPSCs<br />

do not involve the destruction of<br />

preimplantation stage embryos,<br />

thereby circumventing ethical issues<br />

of pre-existing embryonic stem cells<br />

technologies. In addition, this<br />

enables iPSC technologies to create<br />

patient-matched pluripotent stem<br />

cells avoiding immune rejection<br />

after transplantation. Based on<br />

these facts, in the long-term, the<br />

impact of iPSCs is expected to<br />

significantly drive the global market<br />

for advanced stem cell therapeutics.<br />

An excellent discussion covering<br />

applications, challenges and future<br />

perspectives of human iPSCs 5<br />

elucidated how iPSC technology has<br />

evolved. Several recently published<br />

articles chronicle the developments,<br />

including the development and<br />

characterisation of scaffold-free 3D<br />

spheroid models of iPSC-derived<br />

human cardiomyocytes 6 ; and the use<br />

of extracellular vesicles responsible<br />

for mesenchymal stem cell-induced<br />

effects under physiological and<br />

pathological conditions to improve<br />

post-stroke neuro-regeneration and<br />

prevent post-ischaemic<br />

immunosuppression 7 , among others.<br />

However, Yoshihara et al. 8 cite<br />

genomics instability and genetic<br />

variations in iPSCs as a tangible risk<br />

factor for adverse effects, including<br />

malignant consequences. The<br />

researchers emphasise the critical<br />

need for an in-depth understanding<br />

of the origin and functional<br />

outcomes of such genetic mutations<br />

for the successful advancement of<br />

iPSC-based therapies.<br />

Focus area 2: Clinical<br />

translation<br />

What would be the best<br />

perspectives to address<br />

current challenges in<br />

regenerative medicine?<br />

Although clinical translation faces<br />

some challenges, novel<br />

technologies addressing cell<br />

reprogramming are dramatically<br />

reshaping the field. In parallel, the<br />

development of new genome<br />

scanning technologies and products<br />

to detect genome instability is<br />

growing rapidly. Novel methods to<br />

identify genomic aberrations, copy<br />

number variations and singlenucleotide<br />

polymorphisms are<br />

propelling the genome sequencing<br />

market, which is expected to exceed<br />

european INDUSTRIAL <strong>PHARMACY</strong> December 2016 • Issue 31<br />

19

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