Abstract
The mechanism of hemopoietic stem cell homing to the bone marrow involves molecular interactions that mediate the recognition and interaction of these cells with the marrow microenvironment, including the extracellular matrix. On selective binding, this environment, in combination with soluble cytokines, regulates stem cell proliferation and differentiation. Using immunofluorescence labeling, we analyzed the location of the prominent extracellular matrix proteins fibronectin, collagen Types I, III, and IV, and laminin in sections of murine femoral bone marrow. Collagen Types I, IV, and fibronectin were localized to the endosteum, the region of the femoral microenvironment for which homing stem cells have a high affinity. The results further demonstrated a strong spatial association of collagen Type IV and laminin with the bone marrow vessels, including arterioles, veins, and sinuses. Fibronectin was distributed throughout the central marrow region, and all the proteins analyzed except collagen Type III were present in the bone, although at different levels. Fibronectin, collagen Types III and IV, and laminin were also present in the periosteum. The distinct locations of particular extracellular matrix proteins support the notion that they may play an important mechanistic role in the homing of engrafting cells.
| Original language | English |
|---|---|
| Pages (from-to) | 371-377 |
| Number of pages | 7 |
| Journal | Journal of Histochemistry and Cytochemistry |
| Volume | 46 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1998 |
| Externally published | Yes |
Keywords
- Extracellular matrix proteins
- In situ
- Murine
- Paraffin sections
- Paraformaldehyde perfusion
Cite this
}
Immunofluorescence characterization of key extracellular matrix proteins in murine bone marrow in situ. / Nilsson, Susan K.; Debatis, Michelle E.; Dooner, Mark S.; Madri, Joseph A.; Quesenberry, Peter J.; Becker, Pamela S.
In: Journal of Histochemistry and Cytochemistry, Vol. 46, No. 3, 1998, p. 371-377.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Immunofluorescence characterization of key extracellular matrix proteins in murine bone marrow in situ
AU - Nilsson, Susan K.
AU - Debatis, Michelle E.
AU - Dooner, Mark S.
AU - Madri, Joseph A.
AU - Quesenberry, Peter J.
AU - Becker, Pamela S.
PY - 1998
Y1 - 1998
N2 - The mechanism of hemopoietic stem cell homing to the bone marrow involves molecular interactions that mediate the recognition and interaction of these cells with the marrow microenvironment, including the extracellular matrix. On selective binding, this environment, in combination with soluble cytokines, regulates stem cell proliferation and differentiation. Using immunofluorescence labeling, we analyzed the location of the prominent extracellular matrix proteins fibronectin, collagen Types I, III, and IV, and laminin in sections of murine femoral bone marrow. Collagen Types I, IV, and fibronectin were localized to the endosteum, the region of the femoral microenvironment for which homing stem cells have a high affinity. The results further demonstrated a strong spatial association of collagen Type IV and laminin with the bone marrow vessels, including arterioles, veins, and sinuses. Fibronectin was distributed throughout the central marrow region, and all the proteins analyzed except collagen Type III were present in the bone, although at different levels. Fibronectin, collagen Types III and IV, and laminin were also present in the periosteum. The distinct locations of particular extracellular matrix proteins support the notion that they may play an important mechanistic role in the homing of engrafting cells.
AB - The mechanism of hemopoietic stem cell homing to the bone marrow involves molecular interactions that mediate the recognition and interaction of these cells with the marrow microenvironment, including the extracellular matrix. On selective binding, this environment, in combination with soluble cytokines, regulates stem cell proliferation and differentiation. Using immunofluorescence labeling, we analyzed the location of the prominent extracellular matrix proteins fibronectin, collagen Types I, III, and IV, and laminin in sections of murine femoral bone marrow. Collagen Types I, IV, and fibronectin were localized to the endosteum, the region of the femoral microenvironment for which homing stem cells have a high affinity. The results further demonstrated a strong spatial association of collagen Type IV and laminin with the bone marrow vessels, including arterioles, veins, and sinuses. Fibronectin was distributed throughout the central marrow region, and all the proteins analyzed except collagen Type III were present in the bone, although at different levels. Fibronectin, collagen Types III and IV, and laminin were also present in the periosteum. The distinct locations of particular extracellular matrix proteins support the notion that they may play an important mechanistic role in the homing of engrafting cells.
KW - Extracellular matrix proteins
KW - In situ
KW - Murine
KW - Paraffin sections
KW - Paraformaldehyde perfusion
UR - http://www.scopus.com/inward/record.url?scp=0031906950&partnerID=8YFLogxK
U2 - 10.1177/002215549804600311
DO - 10.1177/002215549804600311
M3 - Article
VL - 46
SP - 371
EP - 377
JO - Journal of Histochemistry and Cytochemistry
JF - Journal of Histochemistry and Cytochemistry
SN - 0022-1554
IS - 3
ER -