From embryonic stem cells to testicular germ cell cancer-- should we be concerned?

TY - JOUR

T1 - From embryonic stem cells to testicular germ cell cancer-- should we be concerned?

AU - Almstrup, Kristian

AU - Sonne, Si Brask

AU - Hoei-Hansen, Christina E

AU - Ottesen, Anne Marie

AU - Nielsen, John E

AU - Skakkebaek, Niels E

AU - Leffers, Henrik

AU - Rajpert-De Meyts, Ewa

N1 - Keywords: Carcinoma in Situ; Germinoma; Humans; Male; Neoplasms, Germ Cell and Embryonal; Seminoma; Stem Cells; Testicular Neoplasms

PY - 2006

Y1 - 2006

N2 - Since the discovery of testicular carcinoma in situ (CIS) -- the precursor cell for the vast majority of germ cell tumours -- it has been proposed that CIS cells could be derived from transformed primordial germ cells or gonocytes. Here, we review recent discoveries not only substantiating that initial hypothesis but also indicating that CIS cells have a striking phenotypic similarity to embryonic stem cells (ESC). Many cancers have been proposed to originate from tissue-specific stem cells [so-called 'cancer stem cells' (CSC)] and we argue that CIS may be a very good example of a CSC, but with exceptional features due to the retention of embryonic pluripotency. In addition, considering the fact that pre-invasive CIS cells are transformed from early fetal cells, possibly due to environmentally induced alterations of the niche, we discuss potential risks linked to the uncontrolled therapeutic use of ESC.

AB - Since the discovery of testicular carcinoma in situ (CIS) -- the precursor cell for the vast majority of germ cell tumours -- it has been proposed that CIS cells could be derived from transformed primordial germ cells or gonocytes. Here, we review recent discoveries not only substantiating that initial hypothesis but also indicating that CIS cells have a striking phenotypic similarity to embryonic stem cells (ESC). Many cancers have been proposed to originate from tissue-specific stem cells [so-called 'cancer stem cells' (CSC)] and we argue that CIS may be a very good example of a CSC, but with exceptional features due to the retention of embryonic pluripotency. In addition, considering the fact that pre-invasive CIS cells are transformed from early fetal cells, possibly due to environmentally induced alterations of the niche, we discuss potential risks linked to the uncontrolled therapeutic use of ESC.

U2 - 10.1111/j.1365-2605.2005.00643.x

DO - 10.1111/j.1365-2605.2005.00643.x

M3 - Journal article

C2 - 16466542

SN - 0105-6263

VL - 29

SP - 211

EP - 218

JO - International Journal of Andrology

JF - International Journal of Andrology

IS - 1

ER -