1
|
Akiyama SK, Yamada KM. Fibronectin. ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY 2006; 59:1-57. [PMID: 2949539 DOI: 10.1002/9780470123058.ch1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
2
|
Ohyama K, Kawano H, Asou H, Fukuda T, Oohira A, Uyemura K, Kawamura K. Coordinate expression of L1 and 6B4 proteoglycan/phosphacan is correlated with the migration of mesencephalic dopaminergic neurons in mice. BRAIN RESEARCH. DEVELOPMENTAL BRAIN RESEARCH 1998; 107:219-26. [PMID: 9593903 DOI: 10.1016/s0165-3806(97)00220-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Mesencephalic dopaminergic (DA) neurons of mice are generated from embryonic day 10 to 12 (E10-12) in the ventricular zone of the mesencephalon. They first migrate toward the ventral mesencephalon, and then turn laterally, or tangentially, in the basal part of the mesencephalon. With immunohistochemical analysis of E10-E15 ICR mice, we found that cell adhesion molecule L1 was transiently expressed on the median part of tangential fibers coincident with the lateral migration of DA neurons from E11 to E13, when neurons move along the tangential fibers toward their final destinations: the reticular formation, the substantia nigra pars compact, and the ventral tegmental area. While L1 expression was not observed in DA neurons, they expressed a chondroitin sulfate proteoglycan, 6B4 proteoglycan/phosphacan, which has been shown to bind to L1/Ng-CAM in vitro. These results suggest that the heterophilic interaction between 6B4 proteoglycan on the neurons and L1 on the fibers is involved in the lateral migration of mesencephalic DA neurons in mice.
Collapse
Affiliation(s)
- K Ohyama
- Department of Anatomy, Keio University, School of Medicine, Tokyo 160, Japan.
| | | | | | | | | | | | | |
Collapse
|
3
|
Norton PA, Uporova T, Bennett VD. A highly conserved region upstream of the fibronectin alternative exon EIIIA 3' splice site interacts with cell-type-specific nuclear proteins. BIOCHIMICA ET BIOPHYSICA ACTA 1998; 1395:145-50. [PMID: 9473640 DOI: 10.1016/s0167-4781(97)00151-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Sequencing of chicken fibronectin genomic DNA and interspecies sequence comparisons reveal a highly conserved region upstream of the alternatively spliced exon EIIIA. UV-crosslinking of RNAs corresponding to this region from the chicken and rat genes with HeLa nuclear extract demonstrates that both RNAs interact with similar proteins. However, both RNAs crosslink to a 70 kDa protein present in nuclear extracts from cells and tissues that include exon EIIIA, but not in extracts from tissues that exclude the exon. This protein represents a candidate cell-type-specific factor involved in exon EIIIA inclusion.
Collapse
Affiliation(s)
- P A Norton
- Department of Medicine, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | | | | |
Collapse
|
4
|
Activation of Epidermal Growth Factor Receptor Gene Transcription by Phorbol 12-Myristate 13-Acetate Is Mediated by Activator Protein 2. J Biol Chem 1996. [DOI: 10.1016/s0021-9258(18)97974-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
5
|
Hiranuma K, Suzuki K, Hirata K, Nakamura H, Higashi K, Hirano H. Extracellular matrices in peritendinous connective tissue after surgical injury to the chicken flexor tendon. Arch Orthop Trauma Surg 1996; 115:63-7. [PMID: 9063853 DOI: 10.1007/bf00573442] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Gene expression of fibronectin, type I collagen and type III collagen and the presence of fibronectin in peritendinous connective tissue were investigated, following flexor tendon injury, using slot-blot hybridization and immunohistochemistry. Fibrous adhesion around the chicken flexor tendon was induced by a partial laceration using a surgical knife. Total RNA was purified from the peritendinous connective tissue surrounding a tendon by combining the guanidine thiocyanate procedure and isoelectric precipitation. Slot-blot hybridization revealed that gene expression of fibronectin and collagens type I and III increased gradually after tendon injury, and levels were maintained high throughout the experimental period of 16 weeks. Indirect immunofluorescence revealed fibronectin to be preferentially located in peritendinous connective tissue around the injured tendon. The prolonged increase of fibronectin in the peritendinous connective tissue may relate to the development of histological adhesion after flexor tendon injury.
Collapse
Affiliation(s)
- K Hiranuma
- Department of Orthopaedics, University of Occupational and Environmental Health, Kitakyushu, Japan
| | | | | | | | | | | |
Collapse
|
6
|
Brigman BE, Hu P, Yin H, Tsuzaki M, Lawrence WT, Banes AJ. Fibronectin in the tendon-synovial complex: quantitation in vivo and in vitro by ELISA and relative mRNA levels by polymerase chain reaction and northern blot. J Orthop Res 1994; 12:253-61. [PMID: 8164099 DOI: 10.1002/jor.1100120215] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An enzyme-linked immunosorbent assay was used to quantitate fibronectin (Fn) levels in the outer synovia (epitenon) and internal fibrous portion (endotenon) of chicken flexor tendon and sheath. Primary cell cultures from these tissues and their secretions also were assayed for Fn levels. The polymerase chain reaction (PCR) was used to determine relative steady-state levels of Fn mRNA in primary cultures of synovial and internal fibroblasts from chicken tendon, and Northern blot analysis was performed to verify relative levels of the Fn message. The epitenon contained 3.8-fold more Fn than did the endotenon, and the sheath synovium contained 21-fold more Fn than did the internal fibrous portion of sheath. Cells cultured from the epitenon produced 9.3 and 13-fold more cell-associated and secreted Fn, respectively, than did cultured endotenon fibroblasts. Sheath synovial cells produced 17 and 3.2-fold more cell-associated and secreted Fn, respectively, than did sheath internal fibroblasts. Levels of Fn mRNA, as measured by PCR and Northern blot, were 1.6 and 1.8-fold greater, respectively, in tendon synovial cells compared with tendon internal fibroblasts. The biologic reason for increased Fn in tendon synovium is not known. We theorize that Fn may stabilize tendon synovium to shear stress and may play a role in the modulation of synovial rheology in the normal tendon. In the injured tendon, Fn may be involved in the organization of collagen deposition or may act through association with growth factors to aid healing.
Collapse
Affiliation(s)
- B E Brigman
- Division of Plastic and Reconstructive Surgery and Surgery of the Hand, University of North Carolina at Chapel Hill 27599-7050
| | | | | | | | | | | |
Collapse
|
7
|
Jia R, Hanafusa H. The proto-oncogene of v-eyk (v-ryk) is a novel receptor-type protein tyrosine kinase with extracellular Ig/GN-III domains. J Biol Chem 1994. [DOI: 10.1016/s0021-9258(17)42103-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
|
8
|
Odenthal M, Neubauer K, Baralle FE, Peters H, Meyer zum Büschenfelde KH, Ramadori G. Rat hepatocytes in primary culture synthesize and secrete cellular fibronectin. Exp Cell Res 1992; 203:289-96. [PMID: 1281107 DOI: 10.1016/0014-4827(92)90001-o] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Fibronectins, involved in cell-matrix interactions and cell attachment, are glycoproteins which show a remarkable heterogeneity, due to alternative splicing. The type III-related domains, ED-A and ED-B, are present in cellular fibronectin in a variety of ratios whereas they are absent in circulating plasma fibronectin. Fibronectin synthesis by hepatocytes which are accepted as suppliers of plasma fibronectin was studied in primary cultures during a 6-day culture period. Using site-specific antibodies we demonstrate that rat hepatocytes are also able to synthesize and secrete fibronectin bearing the ED-A domain from Day 3 on after inoculation. By immunocytological characterization of the hepatocyte monolayer with antibodies directed against desmin, laminin, collagen IV, alpha-SM-actin, or ED-1 or factor VIII-related antigen, contaminating mesenchymal hepatic cell-types as a source for cellular fibronectin production could be ruled out. Dexamethasone treatment caused enhanced fibronectin synthesis and cellular fibronectin was already detectable at Day 1 after plating. Elevation of cellular fibronectin synthesis after prolonged culture-terms and by dexamethasone could also be demonstrated on mRNA steady-state level, using ED-A cDNA as a probe in hybridization analysis. Dot blot hybridisation proved a prominent response of cellular fibronectin mRNA level to dexamethasone at Day 1 when dexamethasone treatment resulted in an increased contribution of ED-A-positive fibronectin transcripts to total fibronectin mRNA level.
Collapse
Affiliation(s)
- M Odenthal
- I. Medizinische Klinik und Poliklinik Universität Mainz, Federal Republic of Germany
| | | | | | | | | | | |
Collapse
|
9
|
Abstract
Treatment with transforming growth factor beta 1 (TGF-beta 1) results in stimulation of total protein synthesis in normal dermal fibroblasts but not in keloid fibroblasts, suggesting that the TGF-beta regulatory program is altered in keloid fibroblasts. However, both keloid and normal fibroblasts treated with TGF-beta 1 exhibit accelerated fibronectin biosynthesis, indicating that keloid cells can respond to TGF-beta 1. In the absence of serum, the TGF-beta 1-induced increase in fibronectin biosynthesis occurs more rapidly in keloid fibroblasts, also suggesting modification of this regulatory pathway. The TGF-beta 1-mediated increase in keloid fibronectin production is independent of the steroid regulatory pathway for fibronectin, which accelerates synthesis by means of a post-transcriptional mechanism. Thus, TGF-beta 1 stimulation of fibronectin production in keloid cells is likely to involve a transcriptional mechanism and keloid overproduction of extracellular matrix components may be due to an inherent modification of the TGF-beta regulatory program.
Collapse
Affiliation(s)
- M Babu
- Department of Anatomy and Cell Biology, Tufts University School of Medicine, Boston, MA 02111
| | | | | |
Collapse
|
10
|
Oliver N, Babu M, Diegelmann R. Fibronectin gene transcription is enhanced in abnormal wound healing. J Invest Dermatol 1992; 99:579-86. [PMID: 1431220 DOI: 10.1111/1523-1747.ep12667776] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abnormal wound healing in susceptible individuals can result in the formation of keloids that have an elevated content of extracellular matrix material compared to normal scars. Keloid-derived fibroblasts exhibit as much as a four-fold increase in the rate of fibronectin biosynthesis compared to fibroblasts from normal dermis and normal scars. Altered biosynthesis is due to an increase in the steady-state level of fibronectin mRNA, and in this investigation we have identified the level of fibronectin gene expression that is responsible for this increase. The rate of fibronectin gene transcription was found to be increased as much as threefold in keloid fibroblasts when compared to normal fibroblasts. Other possible changes that could account for the elevated level of fibronectin mRNA in keloids, such as increased copy number of the fibronectin gene or decreased turnover of fibronectin mRNA were also examined. The possibility of altered gene dosage was eliminated because chromosome content, G-banding patterns, and fibronectin gene content of keloid fibroblasts were all found to be normal. Analysis of fibronectin mRNA degradation revealed a half-life of approximately 13 h, and the residual fibronectin mRNA was observed to remain full length during this time period in both keloid and normal fibroblasts. Thus, altered degradation of fibronectin mRNA is unlikely to contribute to overproduction of fibronectin in keloids. Increased translational competence of fibronectin mRNA in keloids was also eliminated as a contributing factor because fibronectin mRNA remaining after one half-life were equally available for translation in both cell types. Although stimulation of transcription may not entirely account for the increase in fibronectin biosynthesis in keloids, this mechanism is best able to account for the majority of the change.
Collapse
Affiliation(s)
- N Oliver
- Department of Anatomy and Cell Biology, Tufts University School of Medicine, Boston, MA 02111
| | | | | |
Collapse
|
11
|
Wrana JL, Overall CM, Sodek J. Regulation of the expression of a secreted acidic protein rich in cysteine (SPARC) in human fibroblasts by transforming growth factor beta. Comparison of transcriptional and post-transcriptional control with fibronectin and type I collagen. EUROPEAN JOURNAL OF BIOCHEMISTRY 1991; 197:519-28. [PMID: 1709099 DOI: 10.1111/j.1432-1033.1991.tb15940.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Transforming growth factor beta (TGF-beta) and secreted protein acidic rich cysteine (SPARC) have been associated with the rapid remodeling of connective tissues that occurs in wound healing and developmental processes. To study the temporal and mechanistic aspects of TGF-beta-regulated extracellular-protein gene expression in human fibroblasts, confluent cells were pulse labeled for 30 min with [35S]methionine at various times following the single addition of 1.0 ng/ml TGF-beta. After a 4-h chase period, specific radiolabeled media proteins were isolated by either immunoprecipitation or affinity chromatography and quantitated. Stimulation of SPARC synthesis was first apparent 5 h after addition of TGF-beta, reached a maximum (3.5-fold increase) at 24 h and persisted for at least 96 h. A similar temporal response to TGF-beta was observed for the extracellular matrix proteins collagen and fibronectin. In contrast, TGF-beta induced a strong (greater than sixfold increase at 9 h after addition of TGF-beta), but transient stimulation of the synthesis of endothelial-type plasminogen activator inhibitor. Northern blot analysis showed that SPARC mRNA levels were increased by TGF-beta in parallel with increase in SPARC synthesis; a maximum 3.9-fold increase in SPARC mRNA being reached at 24 h. Similarly, the levels of both collagen and fibronectin mRNA were increased by TGF-beta treatment. In each case the stimulation of mRNA was blocked by the presence of the translation inhibitor, cycloheximide. Stability of SPARC mRNA (half-life of approximately 50 h) was not significantly altered by TGF-beta. In contrast, the stability of collagen and fibronectin mRNA were both increased in the presence of TGF-beta; the increased stability being pronounced in less dense cells. In addition to effects on stability, transcription of the collagen and fibronectin genes was increased 7 h after TGF-beta addition, but returned to control levels by 24 h. However, transcription of the SPARC gene was unaffected by TGF-beta at both time points and, together with the stability data, indicates that TGF-beta regulates SPARC expression via a nuclear post-transcriptional mechanism. Differential regulation of gene expression by TGF-beta in a precise temporal pattern via transcriptional and post-transcriptional pathways may be an important aspect of the response of fibroblast cells in a wound environment.
Collapse
Affiliation(s)
- J L Wrana
- Department of Biochemistry, University of Toronto, Canada
| | | | | |
Collapse
|
12
|
Lyons-Giordano B, Brinker JM, Kefalides NA. The effect of heparin on fibronectin and thrombospondin synthesis and mRNA levels in cultured human endothelial cells. Exp Cell Res 1990; 186:39-46. [PMID: 1688801 DOI: 10.1016/0014-4827(90)90207-q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Studies to eludicate the effect of heparin on the synthesis of extracellular matrix components by cultured human umbilical vein endothelial cells (EC) were conducted. Using pulse-labeling and ELISA techniques, we found that EC grown in the presence of heparin (90 micrograms/ml) and endothelial cell growth factor (ECGF) synthesized 50% less fibronectin (FN) than did ECGF-treated control cultures. No change in the synthesis of thrombospondin (TSP) was induced by heparin. The effect of heparin on EC FN synthesis was independent of whether the cells were cultivated on plastic or gelatin substrates. However, ECGF modulates the effect of heparin on EC synthesis of FN. RNA slot-blot analysis demonstrated that heparin treatment specifically decreased the steady-state mRNA levels for both FN and TSP in the cells. Steady-state levels of mRNA for two intracellular proteins, actin and tubulin, were unchanged. These data suggest that heparin decreases EC expression of FN at least in part by decreasing the amount of FN mRNA available for translation. The failure of heparin to inhibit TSP expression, although it reduces TSP mRNA levels, points to the possibility that the rate of EC synthesis of TSP is translationally or post-translationally regulated.
Collapse
Affiliation(s)
- B Lyons-Giordano
- Connective Tissue Research Institute, University of Pennsylvania, Philadelphia 19104
| | | | | |
Collapse
|
13
|
Affiliation(s)
- L Weiss
- Department of Experimental Pathology, Roswell Park Memorial Institute, Buffalo, New York 14263
| |
Collapse
|
14
|
Lyons-Giordano B, Brinker JM, Kefalides NA. Heparin increases mRNA levels of thrombospondin but not fibronectin in human vascular smooth muscle cells. Biochem Biophys Res Commun 1989; 162:1100-4. [PMID: 2764920 DOI: 10.1016/0006-291x(89)90786-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The effects of heparin (180 micrograms/ml) on steady state mRNA levels for fibronectin, thrombospondin, actin and collagen types I and III were investigated in human umbilical artery smooth muscle cells. Heparin caused a 120% increase in thrombospondin mRNA levels and a 60% and 180% increase in the mRNA levels of procollagen chains alpha 2(I) and alpha 1(III), respectively. No change in fibronectin or actin mRNA levels resulted from heparin treatment. We reported earlier (Biochem. Biophys. Res. Comm. 148:1264, 1987) that heparin increases smooth muscle cell synthesis of both fibronectin and thrombospondin. These data show that heparin coordinately regulates thrombospondin mRNA and protein levels. The heparin induced increase in fibronectin biosynthesis apparently reflects control at the translational or post-translational level.
Collapse
Affiliation(s)
- B Lyons-Giordano
- Department of Medicine, University of Pennsylvania, Philadelphia
| | | | | |
Collapse
|
15
|
Weiss L, Orr FW, Honn KV. Interactions between cancer cells and the microvasculature: a rate-regulator for metastasis. Clin Exp Metastasis 1989; 7:127-67. [PMID: 2465861 DOI: 10.1007/bf01787020] [Citation(s) in RCA: 111] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hematogenous metastasis is a major consideration in the staging, treatment and prognosis of patients with cancer. Key events affecting hematogeneous metastasis occur in the microvasculature. This is a brief, selective review of some interactions involving cancer cells and the microvasculature in pathologic sequence, specifically: (1) intravasation of cancer cells; (2) the arrest of circulating cancer cells in the microvasculature; (3) cancer cell trauma associated with arrest; (4) microvascular trauma; (5) the inflammatory; and (6) the hemostatic coagulative responses associated with arrest, and finally (7) angiogenesis, leading to tumor vascularization. The evidence shows that through a series of complex interactions with cancer cells, the microvasculature acts as a rate-regulator for the metastatic process, in addition to providing routes for cancer cell dissemination and arrest sites for cancer cell emboli.
Collapse
Affiliation(s)
- L Weiss
- Department of Experimental Pathology, Memorial Institute, Buffalo, NY 14263
| | | | | |
Collapse
|
16
|
Abstract
Oncogenically transformed cells show reduced assembly of fibronectin-rich extracellular matrixes and diminished ability to adhere to fibronectin. The molecular bases of these phenotypic alteration are not fully understood. We report here alterations in the spectrum of integrins, including two fibronectin receptors, on oncogenic transformation of rodent cells. Transformation of rat1, NRK, and Nil8 cells by Rous sarcoma virus or by murine sarcoma viruses encoding ras oncogenes leads to reductions in the level of integrin alpha 5 beta 1, which is a well-defined fibronectin receptor, and of two other integrin receptors. In contrast, another receptor, alpha 3 beta 1, which is a polyspecific receptor for fibronectin, laminin, and collagen, is retained by transformed cells. These results provide explanations for earlier results concerning the interactions of extracellular matrix proteins with the surfaces of tumor cells and offer leads to further understanding of the altered adhesive and migratory behavior of malignant cells.
Collapse
Affiliation(s)
- L C Plantefaber
- Center for Cancer Research, Massachusetts Institute of Technology, Cambridge 02139
| | | |
Collapse
|
17
|
Thompson KL, Assoian R, Rosner MR. Transforming growth factor-beta increases transcription of the genes encoding the epidermal growth factor receptor and fibronectin in normal rat kidney fibroblasts. J Biol Chem 1988. [DOI: 10.1016/s0021-9258(19)77666-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
18
|
Nishida T, Takano M, Kawakami T, Nishino N, Nakai S, Hirai Y. The transcription of the interleukin 1 beta gene is induced with PMA and inhibited with dexamethasone in U937 cells. Biochem Biophys Res Commun 1988; 156:269-74. [PMID: 3052447 DOI: 10.1016/s0006-291x(88)80835-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Interleukin 1 beta mRNA was induced with phorbol ester, not LPS, in the human histiocytic lymphoma cell line U937, but interleukin 1 alpha mRNA was not induced. Nuclear run-on analysis showed that phorbol ester induced the transcription of interleukin 1 beta but did not induce it in the presence of cycloheximide. This indicates that the induction of the transcription with PMA requires de novo protein synthesis. Dexamethasone, an immunosuppressive and anti-inflammatory agent, decreased the level of interleukin 1 beta mRNA induced with phorbol ester. The transcriptional analysis showed that dexamethasone inhibits the transcription of the interleukin 1 beta gene.
Collapse
Affiliation(s)
- T Nishida
- Cellular Technology Institute, Otsuka Pharmaceutical Co., Ltd., Japan
| | | | | | | | | | | |
Collapse
|
19
|
Kubomura S, Obara M, Karasaki Y, Taniguchi H, Gotoh S, Tsuda T, Higashi K, Ohsato K, Hirano H. Genetic analysis of the cell binding domain region of the chicken fibronectin gene. BIOCHIMICA ET BIOPHYSICA ACTA 1987; 910:171-81. [PMID: 2823899 DOI: 10.1016/0167-4781(87)90070-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We have determined the nucleotide sequence of the cell binding domain region of the chicken fibronectin gene and analyzed it evolutionaly. We present here the complete nucleotide sequence of 4.3 kb HindIII/EcoRI segment from the clone lambda FC23 of the chicken fibronectin gene. There were five exons in this segment. When we lined up the amino acid of exons 28, 29 and 31, three alignments, known as the Type III repeat, appeared. Tetrapeptide, -RGDS-, called the cell binding domain, existed in the second repeat, coding exon 30. It was presumed that the Type III repeats were composed of two exons in the chicken gene, the same as in the rat and humans. We found repeatedly appearing amino-acid sequences such as -TIT- (three arrays in these Type III repeats) but also found one of the amino acids substituted in the tripeptide in these Type III repeats (seven arrays). We analyzed these repeats from the point of view of evolution. We used three of the nucleotide sequences (12-18 bp) coding such -TIT- repeats as a unit length for comparing the various homologies after dividing the coding region into 56 segments. The mutual homology of the divided segments to each one of three showed 53% on average. On the other hand, the mutual nucleotide homology of the Type III repeat was 44%. This suggested that the Type III repeat may have been developed by frequent duplication of small gene units.
Collapse
Affiliation(s)
- S Kubomura
- Department of Biochemistry, University of Occupational and Environmental Health, Kitakyushu, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Warburton MJ, Ferns SA, Kimbell R, Rudland PS, Monaghan P, Gusterson BA. Loss of basement membrane deposits and development of invasive potential by virally-transformed rat mammary cells are independent of collagenase production. Int J Cancer 1987; 40:270-7. [PMID: 3038759 DOI: 10.1002/ijc.2910400224] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The myoepithelial-type cell line, Rama 712, derived from a normal rat mammary gland, deposits an extracellular matrix containing type-IV collagen and other basement membrane proteins round its cellular periphery. After transformation with a temperature-sensitive mutant of Rous sarcoma virus (tsRSV) the cells fail to deposit an extracellular matrix at the permissive temperature (35 degrees C), but retain the capacity to do so at the non-permissive temperature (41 degrees C). The synthesis of type-IV collagen is not affected by the temperature shift. Rama 712 cells fail to form tumours in syngeneic rats. However, Rama 712-tsRSV cells form tumours that are locally invasive but fail to metastasize. In histological sections, the tumour cells stain with an antibody to type-IV collagen, but do not deposit any extracellular type-IV collagen. Cells isolated from the tumours (Rama 712T) remain temperature-sensitive for the extracellular deposition of type-IV collagen when grown in vitro. Rama 712, Rama 712-tsRSV and Rama 712T fail to produce any detectable type-I or type-IV collagenase at either 35 degrees C or 41 degrees C. These results show that in this system extracellular deposits of basement membrane proteins are lost from invasive tumours produced by myoepithelial-type cells by mechanisms other than those due to the production of collagenolytic enzymes.
Collapse
|
21
|
Regulation of plasma fibronectin biosynthesis by glucocorticoids in chick hepatocyte cultures. J Biol Chem 1987. [DOI: 10.1016/s0021-9258(18)61122-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
22
|
Umezawa K, Atsumi S, Matsushima T, Takeuchi T. Enhancement of fibronectin expression by herbimycin A. EXPERIENTIA 1987; 43:614-6. [PMID: 3036558 DOI: 10.1007/bf02126351] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Herbimycin A specifically increased the level of fibronectin mRNA in Rous sarcoma virus-infected rat kidney cells, and the time course of fibronectin expression was found to be closely related to that of morphological change induced by herbimycin A.
Collapse
|
23
|
|
24
|
Abstract
Human tumor cell lines, a rhabdomyosarcoma (RD), and a fibrosarcoma (HT-1080) were distinguished from normal human fibroblasts by tumorigenicity in athymic nude mice and immunosuppressed rats and hamsters, secretion of different types of collagen and procollagen molecules, and reduced amounts of fibronectin. The fibronectins secreted by both normal and tumor cells did not show any significant structural difference and were phosphorylated only on serine residue(s). However, fibronectin secreted by the tumor cells exhibited decreased electrophoretic mobility and was associated with as yet unidentified phosphorylated macromolecules.
Collapse
|
25
|
Alemá S, Tató F. Interaction of retroviral oncogenes with the differentiation program of myogenic cells. Adv Cancer Res 1987; 49:1-28. [PMID: 3314392 DOI: 10.1016/s0065-230x(08)60792-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- S Alemá
- Istituto di Biologia Cellulare, Consiglio Nazionale delle Ricerche, Rome, Italy
| | | |
Collapse
|
26
|
|
27
|
Leibovitch SA, Hillion J, Leibovitch MP, Guillier M, Schmitz A, Harel J. Expression of extracellular matrix genes in relation to myogenesis and neoplastic transformation. Exp Cell Res 1986; 166:526-34. [PMID: 2427350 DOI: 10.1016/0014-4827(86)90497-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Fibronectin and alpha 1(I) and alpha 2(I) collagen proteins and RNAs are highly expressed during the growth phase of the non-transformed L6 alpha 1 rat myoblasts. When L6 alpha 1 cells from myotubes following transfer to low serum medium, the levels of fibronectin RNA decrease 8-fold, those of both alpha 2(I) transcripts decrease only 2-fold, while those of both alpha 1(I) transcripts remain stable. The L6 alpha 1 cell-derived non-differentiable low-malignant M4 cell and high-malignant RMS4 cell display only one size of alpha 1(I) and alpha 2(I) transcripts. Compared with L6 alpha 1 myoblasts, the levels of fibronectin and alpha 1(I) RNAs are reduced by factors of 4-5 and 9-10 respectively in both M4 and RMS4 and those of alpha 2(I) RNAs by factors of 10-11 and 20-22 in M4 and RMS4, respectively. Transcription rates are similarly decreased for fibronectin RNA, but are decreased less for collagen RNAs.
Collapse
|
28
|
Aycock RS, Raghow R, Stricklin GP, Seyer JM, Kang AH. Post-transcriptional inhibition of collagen and fibronectin synthesis by a synthetic homolog of a portion of the carboxyl-terminal propeptide of human type I collagen. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(18)67026-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
29
|
Transforming growth factor-beta stimulates the expression of fibronectin and collagen and their incorporation into the extracellular matrix. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(17)35666-1] [Citation(s) in RCA: 1729] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
30
|
Hämäläinen L, Oikarinen J, Kivirikko KI. Synthesis and degradation of type I procollagen mRNAs in cultured human skin fibroblasts and the effect of cortisol. J Biol Chem 1985. [DOI: 10.1016/s0021-9258(20)71156-7] [Citation(s) in RCA: 111] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
31
|
Akiyama SK, Yamada KM. Comparisons of evolutionarily distinct fibronectins: evidence for the origin of plasma and fibroblast cellular fibronectins from a single gene. J Cell Biochem 1985; 27:97-107. [PMID: 3988819 DOI: 10.1002/jcb.240270204] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Plasma and fibroblast cellular fibronectins from three different species were compared for structural similarities and differences. Partial tryptic digestion of either human or chicken plasma and cellular fibronectins yields homologous protease-resistant domains within a species but few homologies between species regardless of the source. Within a species, human or chicken plasma and fibroblast cellular fibronectins are immunologically indistinguishable as determined by the ELISA technique. There is limited immunological cross-reactivity between species. Two-dimensional tryptic peptide maps of fibroblast cellular and plasma fibronectins from the same species are also very similar: 85-95% of the spots on such maps comigrate. When peptide maps from different species are compared, no more than 10% of the spots comigrate. Three models for the genetic origin of cellular and plasma fibronectins in vertebrates are considered. A model in which both fibroblast cellular and plasma fibronectins arise from the same gene is the simplest that is consistent with the data.
Collapse
|