Abstract
Cell motility within central nervous system (CNS) neuropil may be largely restricted yet infiltration by glioma cells is commonly observed. Glioma cells remodel nervous tissue and may assemble extracellular matrix in order to migrate. We examined the rat C6 glioma cell line for laminin expression and response in vitro and following engraftment into rat spinal cord. C6 cell cultures expressed laminin-2. C6 cells attached equally well to substrates of purified laminin-1 and laminin-2 and laminin-2-enriched C6 conditioned medium. In contrast, C6 cell migration was substantially greater on laminin-2 and C6-derived substrata than on laminin-1. Glioma cell attachment to laminin-1 and -2 was largely inhibited by antibody to the laminin receptor LBP110 and by an IKVAV peptide but not by YIGSR or control peptides. IKVAV peptide and anti-LBP110 antibodies also inhibited glioma cell invasion through synthetic basement membrane. Anti-β1 integrin antibody selectively inhibited cell migration and invasion on laminin-2 substrata without affecting percent cell attachment. These findings suggest C6 cell migration and invasion are promoted by autocrine release of laminin-2 and involve LPB110 and β1 integrin laminin receptors. A possible role for laminin-2 in CNS infiltration in vivo was examined following glioma engraftment into rat spinal cord. Engrafted C6 tumors share many histologic features of invasive human glioma. Engrafted glioma cells expressed laminin, LBP110 and β1 integrin antigens, indicating the molecular mechanisms of C6 motility observed in culture may contribute to glioma invasion in vivo. NMR and corroborative immunocytochemistry provided precise means to monitor tumor progression following glioma engraftment into rat spinal cord. Advantages of this glioma model are discussed regarding the assessment of anti-adhesive therapies in vivo.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 199-211 |
| Number of pages | 13 |
| Journal | Journal of Neuro-Oncology |
| Volume | 30 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 1996 |
| Externally published | Yes |
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Keywords
- C6 glioma
- Invasion
- Laminin
- Migration
- NMR
- Peptide antagonist
- Spinal cord
ASJC Scopus subject areas
- Oncology
- Neurology
- Clinical Neurology
- Cancer Research
Cite this
Assessment of laminin-mediated glioma invasion in vitro and by glioma tumors engrafted within rat spinal cord. / Muir, David; Johnson, Jennifer; Rojiani, Mumtaz V; Inglis, Ben A.; Rojiani, Amyn Mohammed; Maria, Bernard L.
In: Journal of Neuro-Oncology, Vol. 30, No. 3, 01.01.1996, p. 199-211.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Assessment of laminin-mediated glioma invasion in vitro and by glioma tumors engrafted within rat spinal cord
AU - Muir, David
AU - Johnson, Jennifer
AU - Rojiani, Mumtaz V
AU - Inglis, Ben A.
AU - Rojiani, Amyn Mohammed
AU - Maria, Bernard L.
PY - 1996/1/1
Y1 - 1996/1/1
N2 - Cell motility within central nervous system (CNS) neuropil may be largely restricted yet infiltration by glioma cells is commonly observed. Glioma cells remodel nervous tissue and may assemble extracellular matrix in order to migrate. We examined the rat C6 glioma cell line for laminin expression and response in vitro and following engraftment into rat spinal cord. C6 cell cultures expressed laminin-2. C6 cells attached equally well to substrates of purified laminin-1 and laminin-2 and laminin-2-enriched C6 conditioned medium. In contrast, C6 cell migration was substantially greater on laminin-2 and C6-derived substrata than on laminin-1. Glioma cell attachment to laminin-1 and -2 was largely inhibited by antibody to the laminin receptor LBP110 and by an IKVAV peptide but not by YIGSR or control peptides. IKVAV peptide and anti-LBP110 antibodies also inhibited glioma cell invasion through synthetic basement membrane. Anti-β1 integrin antibody selectively inhibited cell migration and invasion on laminin-2 substrata without affecting percent cell attachment. These findings suggest C6 cell migration and invasion are promoted by autocrine release of laminin-2 and involve LPB110 and β1 integrin laminin receptors. A possible role for laminin-2 in CNS infiltration in vivo was examined following glioma engraftment into rat spinal cord. Engrafted C6 tumors share many histologic features of invasive human glioma. Engrafted glioma cells expressed laminin, LBP110 and β1 integrin antigens, indicating the molecular mechanisms of C6 motility observed in culture may contribute to glioma invasion in vivo. NMR and corroborative immunocytochemistry provided precise means to monitor tumor progression following glioma engraftment into rat spinal cord. Advantages of this glioma model are discussed regarding the assessment of anti-adhesive therapies in vivo.
AB - Cell motility within central nervous system (CNS) neuropil may be largely restricted yet infiltration by glioma cells is commonly observed. Glioma cells remodel nervous tissue and may assemble extracellular matrix in order to migrate. We examined the rat C6 glioma cell line for laminin expression and response in vitro and following engraftment into rat spinal cord. C6 cell cultures expressed laminin-2. C6 cells attached equally well to substrates of purified laminin-1 and laminin-2 and laminin-2-enriched C6 conditioned medium. In contrast, C6 cell migration was substantially greater on laminin-2 and C6-derived substrata than on laminin-1. Glioma cell attachment to laminin-1 and -2 was largely inhibited by antibody to the laminin receptor LBP110 and by an IKVAV peptide but not by YIGSR or control peptides. IKVAV peptide and anti-LBP110 antibodies also inhibited glioma cell invasion through synthetic basement membrane. Anti-β1 integrin antibody selectively inhibited cell migration and invasion on laminin-2 substrata without affecting percent cell attachment. These findings suggest C6 cell migration and invasion are promoted by autocrine release of laminin-2 and involve LPB110 and β1 integrin laminin receptors. A possible role for laminin-2 in CNS infiltration in vivo was examined following glioma engraftment into rat spinal cord. Engrafted C6 tumors share many histologic features of invasive human glioma. Engrafted glioma cells expressed laminin, LBP110 and β1 integrin antigens, indicating the molecular mechanisms of C6 motility observed in culture may contribute to glioma invasion in vivo. NMR and corroborative immunocytochemistry provided precise means to monitor tumor progression following glioma engraftment into rat spinal cord. Advantages of this glioma model are discussed regarding the assessment of anti-adhesive therapies in vivo.
KW - C6 glioma
KW - Invasion
KW - Laminin
KW - Migration
KW - NMR
KW - Peptide antagonist
KW - Spinal cord
UR - http://www.scopus.com/inward/record.url?scp=0029960443&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029960443&partnerID=8YFLogxK
U2 - 10.1007/BF00177271
DO - 10.1007/BF00177271
M3 - Article
VL - 30
SP - 199
EP - 211
JO - Journal of Neuro-Oncology
JF - Journal of Neuro-Oncology
SN - 0167-594X
IS - 3
ER -