Editorial
Open Access
Every Stem Cell has Two Sides
Chia-Lin Chen*
PhD, Postdoctoral Research Fellow, Institute of Molecular and Genomic Medicine, National Health Research Institutes, Taiwan.
*Corresponding author: Chia-Lin Chen, Ph.D,Postdoctoral Research Fellow,Institute of Molecular and Genomic Medicine,National Health Research
Institutes, No.35, Keyan Rd., Zhunan Town, Miaoli County 35053. Taiwan. Tel: 037-246-166; E-mail: @
Received: July 28, 2018; Accepted: August 3, 2018; Published: August 10, 2018
Citation: Chen CL (2018) Every Stem Cell has Two Sides. Int J Stem Cells Res Ther 1(1): 1-1.
It is my honor and privilege to be an editor of the Journal of
International Stem Cell Research & Therapeutics (IJSCRT). In
1998, Dr. James A. Thomson first described the human embryonic
stem cell line derived from human blastocyst, which disclosed a
new era of stem cell research [1]. In following two decades, more
different types of stem cells have been identified and investigated.
For example, hematopoietic stem cells and mesenchymal
stem cells belong to adult stem cell population (also known as
postnatal stem cell population), which plays a vital role for tissue
regeneration. Additionally, the stem cell model is also applied into
tumorigenicity in recent years [2]. Cancer stem cell population
or tumor initiating stem cell population, which describes a
special population in a bulk tumor, plays a critical role for tumor
recurrence, metastasis and drug resistance. Another milestone
of stem cell research is Dr. Shinya Yamanaka successfully
transformed the fibroblast cells into induced pluripotent stem
cells (iPSCs) via transfecting four transfection factors in 2006
[3]. Soon afterwards, other scientists also successfully generated
iPS cell lines via transfection of three or four stem cell factors
from additional adult cells, such as human keratinocytes [4] or
peripheral blood cells [5]. Dr. Yamanaka’s finding leads a brandnew
avenue for stem cell therapy and won a share of Nobel Prize
in Physiology or Medicine in 2012. However, there are still some
challenges and obstacles for stem cell research and therapy,
except ethical issues. For instance, during the induction of stem
cells into a certain lineage or type of progenitor or mature cells,
most of scientists utilize sequential growth factors stimulation
to mimic the condition of embryonic development. However,
the functions of stem cell-derived cells are usually not as good
as somatic tissues, suggesting other factors are required to take
into account [6]. For stem cell therapy, the advantage of stem cells
is pluripotency, which indicates they have potential to give rise
to various types of progenitors or somatic cells under certain
circumstances. Yet, for therapeutic aspect, the disadvantage of
stem cell therapy still is pluripotency because it means the risk
of teratoma formation after transplantation. Hence, before the
transplantation, the level of purity of stem cell-derived mature
cells becomes a critical issue for the safety of stem cell therapy
[7]. To shed light on the stem cell research and therapy, IJSCRT
would like to unravel the stem cell from different aspects, such as
procedures that can improve of stem cell induction or purification,
the underlying machinery of genetic, epigenetic or metabolic
regulations on stem cells, or micro-environmental effects on
stem cell-derived mature cells after transplantation, etc. We
welcome and invite you to share and submit your contribution
of biomedical research, clinical medicine or the allied stem cell
professions for consideration. We believe IJSCRT will culminate
one of the world’s leading academic medical journals with the
international medical research community through sharing your
valued contribution.
ReferencesTop
- Thomson JA, Itskovitz-Eldor J, Shapiro SS, Waknitz MA, Swiergiel JJ, Marshall VS, Jones JM. Embryonic stem cell lines derived from human blastocysts. Science. 1998;282(5391):1145-1147.
- Kreso A, Dick JE. Evolution of the cancer stem cell model. Cell Stem Cell. 2014; 14(3): 275-291. DOI: 10.1016/j.stem.2014.02.006.
- Takahashi K, Yamanaka S. Induction of pluripotent stem cells from mouse embryonic and adult fibroblast cultures by defined factors. Cell. 2006; 126(4): 663-676. DOI: 10.1016/j.cell.2006.07.024
- Aasen T, Raya A, Barrero MJ, Garreta E, Consiglio A, Gonzalez F, Vassena R, Bilić J, Pekarik V, Tiscornia G, Edel M, Boué S, Izpisúa Belmonte JC. Efficient and rapid generation of induced pluripotent stem cells from human keratinocytes. Nat Biotechnol. 2008; 26(11): 1276-1284. DOI:10.1038/nbt.1503
- Staerk J, Dawlaty MM, Gao Q, Maetzel D, Hanna J, Sommer CA, Mostoslavsky G, Jaenisch R. Reprogramming of human peripheral blood cells to induced pluripotent stem cells. Cell Stem Cell. 2010; 7(1): 20-24. DOI:10.1016/j.stem.2010.06.002
- Strässler ET, Aalto-Setälä K, Kiamehr M, Landmesser U, Kränkel N. Age Is Relative-Impact of Donor Age on Induced Pluripotent Stem Cell-Derived Cell Functionality. Front Cardiovasc Med. 2018; 5: 4. DOI: 10.3389/fcvm.2018.00004
- Lensch MW, Schlaeger TM, Zon LI, Daley GQ. Teratoma formation assays with human embryonic stem cells: a rationale for one type of human-animal chimera. Cell Stem Cell. 2007; 1(3): 253-258. DOI: 10.1016/j.stem.2007.07.019

