Abstract:
:Using a serum-free system, we have investigated the influence of human fibronectin (HFN) and selected growth factors (GF) on the attachment and growth of normal human keratinocytes in vitro. Single-cell suspensions of keratinocytes from near-confluent primary plates, plated on 5-10 microgram/cm2 HFN, showed approximately 30-40% attachment after 2-24 hours of incubation at 37 degrees C, compared with 4-6% attachment on uncoated platic plates. Percentage of attached cells was independent of seed density, tissue donor age, in vitro culture age, or medium composition, while subsequent cellular proliferation was strongly dependent on these factors. Keratinocytes grown on an adequate HFN matrix in a previously described hormone-supplemented medium (Maciag et al., 1981a) achieved four to eight population doubling over 7-12 days at densities greater than or equal to 104 cell/cm2. Removal of most GF individually from the medium had little or no effect on growth, while removal of epidermal growth factor (EGF) alone reduced growth by 30-35% and removal of bovine brain extract (BE) alone reduced growth by approximately 90%. Conversely, EGF alone in basal medium supported approximately 10% control growth, BE alone supported 30-40% control growth, and the combination of EGF and BE approximately 70%. In addition to its major effect on proliferation in this system, BE was necessary to preserve normal keratinocyte morphology and protein production. These findings expand earlier observations that HFN facilitates keratinocyte attachment in vitro and that a brain-derived extract can exert a major positive influence on cultured keratinocytes.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Gilchrest BA,Calhoun JK,Maciag Tdoi
10.1002/jcp.1041120207subject
Has Abstractpub_date
1982-08-01 00:00:00pages
197-206issue
2eissn
0021-9541issn
1097-4652journal_volume
112pub_type
杂志文章abstract::The effects of artificial cryptorchidism and its surgical reversal on spermatogenesis were examined in germ cell mutant, S1/+ and wild type, +/+, mice. In cryptorchid testes no difference was found between S1/+ and +/+ mice in the number of undifferentiated type A spermatogonia. The activity of type A spermatogonia in...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041050115
更新日期:1980-10-01 00:00:00
abstract::Although the role of several protooncogenes, including sis, myc, and myb in the regulation of growth and differentiation of vascular cells has been examined in some detail, limited information is available on the contribution of ras genes to these processes. In the present studies the influence of oncogenic ras transf...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041610312
更新日期:1994-12-01 00:00:00
abstract::During the early period after poliovirus infection of HeLa cells, cellular Na+/K+ ATPase activity is transiently activated. We investigated the possibility that Na+/K+ ATPase activation is a consequence of Na+/H+ antiporter activation. Increased uptake of the weak organic acid 5,5-dimethyloxazolidine-2,4-dione by infe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041420319
更新日期:1990-03-01 00:00:00
abstract::Cell- and matrix-related parameters, which characterize the aging and differentiation process of cartilage in vivo, were measured in cultured chick epiphyseal chondrocytes during maintenance in a suspension culture for 34 days. A gradual decrease in the rates of proliferation and an increase in the size of the cells w...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041440204
更新日期:1990-08-01 00:00:00
abstract::We demonstrated previously that in serum-starved MCF-7 breast cancer cell line, Ang II increased Na+/K+ATPase activity and activated the protein kinase C zeta (PKC-zeta) (Muscella et al., 2002 J Endocrinol 173:315-323; 2003 J Cell Physiol 197:61-68.). The aim of the present study was to investigate the modulation of t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20396
更新日期:2005-11-01 00:00:00
abstract::IGF-I and its receptor IGF-IR are seen as critical effectors of muscle hypertrophy, a notion recently questioned. Using MKR transgenic mice that express a dominant negative IGF-IR only in skeletal muscle, we have examined the role of the IGF-IR signaling in differentiation and repair of muscle fibers after damage-indu...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22218
更新日期:2010-10-01 00:00:00
abstract::The metabolome is a data-rich source of information concerning all the low-molecular-weight metabolites in a biofluid, which can indicate early biological changes to the host due to perturbations in metabolic pathways. Major changes can be seen after minor stimuli, which make it a valuable target for analysis. Due to ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.24002
更新日期:2012-08-01 00:00:00
abstract::Spiral artery remodeling at the maternal-fetal interface is crucial for successful pregnancy and requires the interaction between the first trimester trophoblast and the endothelial cells of the maternal vessels. However, the precise mechanism of this dialog has yet to be determined. The current study investigated whe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27358
更新日期:2019-05-01 00:00:00
abstract::To test the hypothesis that football training would be accompanied by physiological adaptations and hormonal changes, we analyzed the effects of a whole football season on physical fitness and hormonal concentrations in youth football players. Male football players (n = 29, age 16.51 ± 0.7 years) in a regional profess...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28673
更新日期:2019-11-01 00:00:00
abstract::Although prostate carcinoma is an aggressive cancer preferentially metastasizing to the bones, many prostate tumors remain localized and confined to the prostate indefinitely. Prediction of the behavior of anatomically localized and moderately differentiated prostate tumors remains difficult because of lack of prognos...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20709
更新日期:2006-10-01 00:00:00
abstract::Suramin is an anti-cancer drug which induces the differentiation of the human colon cancer clone HT29-D4. Yet chronic suramin treatment of these cells eventually leads to a marked disturbance of the lysosomal system, which consists in an accumulation of hypertrophied autophagic vacuoles and the occurrence of lamellate...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041500122
更新日期:1992-01-01 00:00:00
abstract::Conditions have been established under which the antizyme of ornithine decarboxylase (E.C. 4.1.1.17, L-ornithine carboxy-lyase, ODC) a non-competitive protein inhibitor of ODC, can be detected in cells in response to as little as 10(-7) M putrescine. The maintenance of intracellular antizyme activity depends upon the ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041070206
更新日期:1981-05-01 00:00:00
abstract::Detailed information regarding the synthesis rates of individual protein components is important in understanding the assembly and dynamics of the cytoskeletal matrix of eukaryotic cells. As an approach to this topic, the dual isotope technique of Clark and Zak (J. Biol. Chem., 256:4863-4870, 1981), was employed to me...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041430315
更新日期:1990-06-01 00:00:00
abstract::Dauricine, a bioactive component of Asiatic Moonseed Rhizome, has been widely used to treat a large number of inflammatory diseases in traditional Chinese medicine. In our study, we demonstrated that dauricine inhibited colon cancer cell proliferation and invasion, and induced apoptosis by suppressing nuclear factor-k...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22261
更新日期:2010-10-01 00:00:00
abstract::Phorbol ester-induced reorganization of the actin cytoskeleton was investigated in C6 rat glioma cells. Observations by fluorescence microscopy and photoelectron microscopy indicated that pretreatment with the transition metal chelator N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN) for 1-2 h at 50 microM re...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041580216
更新日期:1994-02-01 00:00:00
abstract::Macrophages are heterogeneous and their phenotype and functions are regulated by the surrounding micro-environment. Macrophages commonly exist in two distinct subsets: 1) Classically activated or M1 macrophages, which are pro-inflammatory and polarized by lipopolysaccharide (LPS) either alone or in association with Th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.26429
更新日期:2018-09-01 00:00:00
abstract::Carbonic anhydrase (CAH) was localized in the mitochondria-rich cells (MRC) of 1-week-old salamander larvae gill epithelium, in both MRC and pavement cells of 6-week-old larvae, and in regenerated stems of previously amputated gills. CAH activity of the MRC was measured quantitatively using a microscope densitometric ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041300118
更新日期:1987-01-01 00:00:00
abstract::The nuclear lamina is a fibrous structure at the nucleoplasmic surface of the inner nuclear membrane. Its assembly state is regulated by phosphorylation of its protein components, the lamins A, B, and C. The isoprenylation of the lamins is essential for their proper membrane anchoring and functionality. The content an...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199705)171:2<135::AID-JCP3
更新日期:1997-05-01 00:00:00
abstract::Clones of Chinese hamster ovary (CHO) cells were isolated by single-step selection for resistance to killing Concanavalin A (ConA) and certain cellular and membrane properties were examined. The ConA-resistant isolates were only about 2-fold more resistant than wild type cells to the selecting lectin, but exhibited pl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041000105
更新日期:1979-07-01 00:00:00
abstract::Nerve growth factor (NGF) is required for the growth and development of sensory and sympathetic neurons. Incubation of chick dorsal root ganglionic cells without NGF resulted in a decrease of active (Na+,K+-pump-mediated) K+ influx over a period of several hours. Addition of NGF to NGF-deprived cells caused 1) a retur...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041130107
更新日期:1982-10-01 00:00:00
abstract::The development of acute pancreatitis (AP) is triggered by acinar events, but the subsequent extra-acinar events, particularly a distinct immune response, appear to determine its severity. Cytokines modulate this immune response and are derived not only from immunocytes but also from pancreatic acinar cells. We studie...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20216
更新日期:2005-04-01 00:00:00
abstract::Thioredoxin reductase (TrxR) is a flavoprotein that contains a C-terminal penultimate selenocysteine (Sec) and has an ability to reduce thioredoxin (Trx), which regulates the activity of NF-kappa B. To date, three TrxR isozymes, TrxR1, TrxR2, and TrxR3, have been identified. In the present study, we found that among t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10377
更新日期:2004-01-01 00:00:00
abstract::This study was undertaken to gain more insight into the mechanism whereby TGF-beta influences the cell cycle progression of cultured rabbit articular chondrocytes. Using proliferating chondrocytes in fetal calf serum-containing medium, we have previously shown that TGF-beta induced a recruitment of cells at the end of...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041500211
更新日期:1992-02-01 00:00:00
abstract::The C-terminal region of parathyroid hormone-related protein (PTHrP) containing the sequence (107-111) appears to be a potent inhibitor of osteoclastic bone resorption. In the present study, we have investigated the effect of human (h)PTHrP (107-139) and hPTHrP (107-111)NH2 on the proliferation of osteoblastic rat ost...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199702)170:2<209::AID-JCP1
更新日期:1997-02-01 00:00:00
abstract::Maintenance of beta1 integrin-mediated cell adhesion in quiescent human mammary epithelial (HME) cells requires protein phosphatase (PP) 2A for not only dephosphorylation of beta1 integrin but also recruitment of IQGAP1 to Rac-bound beta1 integrin. However, how PP2A-dependent regulatory machinery of cell adhesion resp...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20657
更新日期:2006-07-01 00:00:00
abstract::Oral squamous cell carcinoma (OSCC) is the most common malignancy in head and neck cancer and a global cause of cancer-related death. Due to the poor survival rates associated with OSCC, there is a growing need to develop novel technologies and predictive biomarkers to improve disease diagnosis. The identification of ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28180
更新日期:2019-01-28 00:00:00
abstract::Two genes (MAT1A and MAT2A) encode for the essential enzyme methionine adenosyltransferase (MAT). MAT1A is silenced in hepatocellular carcinoma (HCC), and absence of MAT1A leads to spontaneous development of HCC in mice. Previous report correlated promoter methylation to silencing of MAT1A but definitive proof was lac...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22875
更新日期:2012-04-01 00:00:00
abstract::Modeling breast cancer in the mouse has helped to better define the heterogeneity of human breast cancer. In the recent past, it has become evident that some limitations have restricted the potential benefits that can be achieved with this approach. In this review, we highlight some key points that should be taken int...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.24031
更新日期:2012-08-01 00:00:00
abstract::While retinoids have been demonstrated to inhibit growth of many tumor cells, including SCC cells, the molecular mechanism by which retinoids suppress growth has not been elucidated. We previously found that the growth of SCC cells was significantly inhibited by all-trans-retinoic acid (all-trans-RA) treatment, and th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10051
更新日期:2002-03-01 00:00:00
abstract::MC3T3-E1 cells in culture exhibit a temporal sequence of development similar to in vivo bone formation. To examine whether the developmental expression of the osteoblast phenotype depends on serum derived factors, we compared the time-dependent expression of alkaline phosphatase (ALP)-a marker of osteoblastic maturati...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041580311
更新日期:1994-03-01 00:00:00