Abstract
The sensitivity of the rat nervous system to malignant transformation by ethylnitrosourea (ENU) is a function of age at treatment. From late gestation, nervous structures decrease in sensitivity with age as non-neural structures increase in susceptibility. There is a decrease in the proportion of neural tumors induced by ENU and an increase in survival time when nerve growth factor (NGF) levels are elevated in the fetal or neonatal stage. If antibodies directed against mouse beta-NGF (anti-NGF) are administered prior to neonatal ENU treatment, neural tumors appear earlier, although in the same proportion as with treatment by ENU alone. This effect is not observed if the ENU is administered first. This phenomenon seems to be attributed to an increased number of trigeminal nerve neurinomas, which have a shorter latent period than other nervous system tumors. The induced neurological tumors in rats treated neonatally with anti-NGF prior to ENU seem to be almost exclusively neurinomas in the peripheral nervous system. Fetal anti-NGF treatment leads to an increased number of intracerebral gliomas and a longer survival time, which corresponds to the longer latent period of these tumors. The role of NGF in the sensitivity of the rat nervous system to carcinogenesis by ENU and its possible implications in the development of the nervous system are discussed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 351-361 |
| Number of pages | 11 |
| Journal | Journal of Neuroscience Research |
| Volume | 5 |
| Issue number | 4 |
| State | Published - 1980 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Role of nerve growth factor in ethylnitrosourea-induced neural carcinogenesis. / Vinores, S. A.; Perez-Polo, J. R.
In: Journal of Neuroscience Research, Vol. 5, No. 4, 1980, p. 351-361.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of nerve growth factor in ethylnitrosourea-induced neural carcinogenesis
AU - Vinores, S. A.
AU - Perez-Polo, J. R.
PY - 1980
Y1 - 1980
N2 - The sensitivity of the rat nervous system to malignant transformation by ethylnitrosourea (ENU) is a function of age at treatment. From late gestation, nervous structures decrease in sensitivity with age as non-neural structures increase in susceptibility. There is a decrease in the proportion of neural tumors induced by ENU and an increase in survival time when nerve growth factor (NGF) levels are elevated in the fetal or neonatal stage. If antibodies directed against mouse beta-NGF (anti-NGF) are administered prior to neonatal ENU treatment, neural tumors appear earlier, although in the same proportion as with treatment by ENU alone. This effect is not observed if the ENU is administered first. This phenomenon seems to be attributed to an increased number of trigeminal nerve neurinomas, which have a shorter latent period than other nervous system tumors. The induced neurological tumors in rats treated neonatally with anti-NGF prior to ENU seem to be almost exclusively neurinomas in the peripheral nervous system. Fetal anti-NGF treatment leads to an increased number of intracerebral gliomas and a longer survival time, which corresponds to the longer latent period of these tumors. The role of NGF in the sensitivity of the rat nervous system to carcinogenesis by ENU and its possible implications in the development of the nervous system are discussed.
AB - The sensitivity of the rat nervous system to malignant transformation by ethylnitrosourea (ENU) is a function of age at treatment. From late gestation, nervous structures decrease in sensitivity with age as non-neural structures increase in susceptibility. There is a decrease in the proportion of neural tumors induced by ENU and an increase in survival time when nerve growth factor (NGF) levels are elevated in the fetal or neonatal stage. If antibodies directed against mouse beta-NGF (anti-NGF) are administered prior to neonatal ENU treatment, neural tumors appear earlier, although in the same proportion as with treatment by ENU alone. This effect is not observed if the ENU is administered first. This phenomenon seems to be attributed to an increased number of trigeminal nerve neurinomas, which have a shorter latent period than other nervous system tumors. The induced neurological tumors in rats treated neonatally with anti-NGF prior to ENU seem to be almost exclusively neurinomas in the peripheral nervous system. Fetal anti-NGF treatment leads to an increased number of intracerebral gliomas and a longer survival time, which corresponds to the longer latent period of these tumors. The role of NGF in the sensitivity of the rat nervous system to carcinogenesis by ENU and its possible implications in the development of the nervous system are discussed.
UR - http://www.scopus.com/inward/record.url?scp=0018961877&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0018961877&partnerID=8YFLogxK
M3 - Article
VL - 5
SP - 351
EP - 361
JO - Journal of Neuroscience Research
JF - Journal of Neuroscience Research
SN - 0360-4012
IS - 4
ER -