Abstract：
:Integrins play a major role in cell adhesion and migration. Previous work reported that a cleaved form of integrin alpha6 (alpha6p) was detected in invasive human prostate cancer tissue, absent in normal prostate tissue and was produced by urokinase-type Plasminogen Activator (uPA) in a plasmin-independent manner. Using site-directed mutagenesis we identified amino acid residues R594 and R595, located in the "stalk" region of integrin alpha6, as essential for cleavage. The cleavage site is located on the extracellular region of the protein between the beta-barrel domain and the thigh domain. Prostate cancer cells (PC3N) were stably transfected to overexpress the cleavable, wild-type (PC3N-alpha6-WT) or the non-cleavable form of integrin alpha6 (PC3N-alpha6-RR). The number of cells invading laminin 111- and laminin 332-coated filters by PC3N-alpha6-WT cells increased by threefold as compared to PC3N-alpha6-RR cells. Plasminogen activator inhibitor-1 (PAI-1) reduced the invasion of PC3N-alpha6-WT cells by approximately 42% through laminin 332-coated filters and plasmin inhibitor aprotinin had no significant effect. Linear cell migration increased production of integrin alpha6p in the PC3N-alpha6-WT cells and not in the PC3N-alpha6-RR cells and 32% of the PC3N-alpha6-WT cells migrated on laminin 111 in the linear migration assay as compared to the 5% PC3N-alpha6-RR cells. These data taken together suggest that the uPA-mediated cell surface cleavage of the alpha6 integrin extracellular domain is involved in tumor cell invasion and migration on laminin.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Pawar SC,Demetriou MC,Nagle RB,Bowden GT,Cress AEdoi
10.1016/j.yexcr.2007.01.006subject
Has Abstractpub_date
2007-04-01 00:00:00pages
1080-9issue
6eissn
0014-4827issn
1090-2422pii
S0014-4827(07)00019-5journal_volume
313pub_type
杂志文章abstract：:An inactive human X chromosome was introduced by microcell fusion into two mouse embryonal carcinoma cell lines, PSA1-TG8 and OTF9-63, each of which has a single X chromosome. The donor cell line was a mouse-human somatic cell hybrid, CF150, retaining one or more inactive human X chromosome(s) per cell as its only hum...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1996.3393
更新日期：1997-02-01 00:00:00
abstract：:To study the assembly of intermediate filaments in vivo we have transfected fibroblast cell lines with the cDNAs coding for keratins 8 and 18 under the control of the promoter of the SV40 early region and followed keratin expression by RNA hybridization, two-dimensional gel electrophoresis, and immunofluorescence anal...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(88)90274-1
更新日期：1988-12-01 00:00:00
abstract：:The effect of SK&F 96365 (1-(beta-[3-(4-methoxyphenyl)propoxyl]-4- methoxyphenethyl)-1H-imidazole hydrochloride), a recently synthesized inhibitor of receptor-mediated calcium entry, was investigated on human hematopoietic cell lines. We found that treatment of the T-cell leukemia line Jurkat with SK&F 96365 inhibited...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(92)90103-f
更新日期：1992-10-01 00:00:00
abstract：:In a previous study, we found that a specific inhibitor of cellular arginine-specific mono(ADP-ribosyl) transferase, meta-iodobenzylguanidine (MIBG), reversibly inhibited both proliferation and differentiation of cultured embryonic chick primary muscle myoblasts. In addition, we observed that arginine-specific ADP-rib...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1996.0213
更新日期：1996-07-10 00:00:00
abstract：:Cytoplasts derived from senescent and quiescent human diploid cells inhibit DNA synthesis initiation when fused with cells capable of proliferation. When the cytoplasts were subjected to a variety of conditions (trypsin and cycloheximide treatment and growth on fibronectin), this inhibitory activity was lost, suggesti...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(85)90177-6
更新日期：1985-10-01 00:00:00
abstract：:Cellular senescence is a state of irreversible cell cycle arrest in which normal cells at the end of their lifespan fail to enter into DNA synthesis upon serum or growth factor stimulation. We examined whether proteins required for G1/S cell cycle progression were irreversibly down-regulated in senescent human fibrobl...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1993.1306
更新日期：1993-12-01 00:00:00
abstract：:The effect of RU 486, a synthetic steroid that is a powerful antagonist of glucocorticoid hormones, was tested on the transcription of several glucocorticoid-regulated genes in different cell types: inflammatory murine macrophages and two human mammary gland-derived cell lines, MDA-MB-231 and HBL-100. The transcriptio...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(87)90282-5
更新日期：1987-12-01 00:00:00
abstract：:Following intratesticular injection of [3H]thymidine, spermatozoa were isolated from the caput and cauda epididymis of CD-1 mice. Quantitation of the amount of radiolabelled DNA in whole spermatozoa, sperm heads (nuclei) and sperm midpiece-tails (mitochondria) at time intervals 3-36 days postinjection demonstrated mit...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(84)90688-8
更新日期：1984-09-01 00:00:00
abstract：:Cancer stem cells (CSCs) are a subpopulation of chemoresistant cells that play a critical role in disease recurrence following chemotherapy. It has been reported that microRNA-133b (miR-133b) acts as a tumor suppressor in colorectal cancer (CRC). However, whether miR-133b is associated with CRC stemness and chemoresis...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2019.111597
更新日期：2019-12-01 00:00:00
abstract：:Extracellular matrix (ECM) has been reported to enhance epithelial cell attachment and proliferation as well as to induce differentiation in vitro. In an attempt to determine the benefits of culturing pancreatic islet cells on ECM, we studied the morphological and functional patterns of rat islet cells and an insulin-...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/s0014-4827(85)80005-7
更新日期：1985-08-01 00:00:00
abstract：:3-phosphoinositide-dependent kinase-1 (PDK1) phosphorylates and activates several kinases in the cAMP-dependent, cGMP-dependent and protein kinase C (AGC) family. Many putative PDK1 substrates have been identified, but have not been analyzed following transient and specific inhibition of PDK1 activity. Here, we demons...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2008.04.006
更新日期：2008-07-01 00:00:00
abstract：:Autophagy is the principle pathway within cells involved in clearing damaged proteins and organelles. Therefore autophagy is necessary to maintain the turnover balance of peptides and homoeostasis. Autophagy occurs at basal levels under normal conditions but can be upregulated by chemical inducers or stress conditions...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2014.07.014
更新日期：2014-10-15 00:00:00
abstract：:In the fungus Achlya, sexual development in the male strain E87 is mediated by the steroid hormone antheridiol. Treatment of vegetatively growing cells of E87 with antheridiol resulted in changes in the [35S]methionine labeling of several secreted proteins. The most heavily labeled group of proteins observed in the se...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(86)90555-0
更新日期：1986-03-01 00:00:00
abstract：:Nuclear factor kappa B (NF-κB) is a ubiquitous transcription factor which controls the expression of various genes involved in immune responses. However, it is not clear whether NF-κB activation is critical for phagocytosis when Staphylococcus aureus is the pathogen. Using oligonucleotide microarrays, we investigated ...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2014.04.018
更新日期：2014-10-01 00:00:00
abstract：:Using a device named the cell force monitor, the contractile force developed by fibroblasts has been studied by measuring the macroscopic contraction of porous collagen-glycosaminoglycan (GAG) matrices over the first 24 h following cell attachment. In this paper, the effect of a variation in the stiffness that resists...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.2001.5408
更新日期：2002-01-15 00:00:00
abstract：:Recent studies have demonstrated a central role for the exchange protein activated by cAMP (Epac) in the inhibition of Fcgamma-receptor-mediated phagocytosis and bacterial killing by prostaglandin E(2) (PGE(2)) in macrophages. However, the subcellular localization of Epac, and its primary target Rap1, has yet to be de...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2007.10.011
更新日期：2008-01-15 00:00:00
abstract：:Recently, we isolated 4 distinct kinds of single chain antibody against human EGF receptor (EGFR) after screening the Keio phage display scFv library by using two methods of target-guided proximity labeling. In the current study, these monovalent scFv antibodies were converted to bivalent IgGs of humanized forms (hIgG...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2013.03.002
更新日期：2013-05-01 00:00:00
abstract：:High throughput RNA sequencing techniques have revealed that a large fraction of the genome is transcribed into long non-coding RNAs (lncRNAs). Unlike canonical protein-coding genes, lncRNAs do not contain long open reading frames (ORFs) and tend to be poorly conserved across species. However, many of them contain sma...
journal_title：Experimental cell research
pub_type： 杂志文章,评审
doi：10.1016/j.yexcr.2020.111940
更新日期：2020-06-01 00:00:00
abstract：:Noradrenaline, adrenaline, and isoproterenol induce head-to-head association in bovine spermatozoa in a Tris-HCl-buffered medium. Noradrenaline was the most and isoproterenol the least efficient. This effect was stimulated by Ca2+, Mg2+ and Mn2+, Ca2+ being more efficient than the other two ions. At 2 X 10(-6) M Ca2+,...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(78)90384-1
更新日期：1978-05-01 00:00:00
abstract：:An attempt was made to determine the role of metabolic acidification of pericellular medium in regulating cell proliferation. A method of measuring the pH of pericellular medium at a distance exceeding a Debye radius of 5-10 A from the cell surface (pHp) was developed. The values of pHp and pH measured in the medium a...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(85)90188-0
更新日期：1985-10-01 00:00:00
abstract：:Identification of new drugs and predicting drug response are major challenges in oncology, especially for brain tumors, because total surgical resection is difficult and radiation therapy or chemotherapy is often ineffective. With the aim of developing a culture system close to in vivo conditions for testing new drugs...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2013.12.010
更新日期：2014-02-15 00:00:00
abstract：:Extraocular muscles (EOMs) are categorized as skeletal muscles; however, emerging evidence indicates that their gene expression profile, metabolic characteristics and functional properties are significantly different from the prototypical members of this muscle class. Gene expression profiling of developing and adult ...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2010.03.018
更新日期：2010-07-15 00:00:00
abstract：:Prior incubation of confluent, quiescent cultures of Swiss 3T3 cells with insulin leads to a selective loss of mitogenic stimulation on re-addition of the combination of vasopressin and insulin in serum-free medium. The desensitization is specific for the action of vasopressin as insulin is fully active in the refract...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(84)90390-2
更新日期：1984-04-01 00:00:00
abstract：BACKGROUND:Müller cell gliosis not only plays an important physiological role by maintaining retinal neuronal homeostasis but is also associated with multiple pathological events in the retina, including optic nerve crush (ONC) injury. Modulating Müller cell gliosis contributes to the creation of a permissive environme...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2019.01.009
更新日期：2019-02-15 00:00:00
abstract：:Non-small cell lung carcinoma (NSCLC) is characterized by resistance to drug-induced apoptosis, which might explain the survival of lung cancer cells following treatment. Recently we have shown that the broad-range kinase inhibitor staurosporine (STS) reactivates the apoptotic machinery in U1810 NSCLC cells [Joseph et...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2004.12.017
更新日期：2005-04-15 00:00:00
abstract：:In contrast to extensive studies on the roles of molecular chaperones, such as heat shock proteins, there are only a few reports about the roles of GRP78/BiP, an endoplasmic reticulum (ER) stress-induced molecular chaperone, in mammalian cell responses to DNA-damaging stresses. To investigate whether GRP78/BiP is invo...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2005.01.002
更新日期：2005-05-01 00:00:00
abstract：BACKGROUND:Metastatic and/or recurrent breast carcinomas are leading causes of cancer-related death worldwide. Breast cancer stem cells (BCSCs) have been implicated in cancer metastases and progression, thus, the need for the discovery and development of effective BCSCs-specific therapies against metastatic and triple ...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2018.07.008
更新日期：2018-09-15 00:00:00
abstract：:The intracellular distribution of the glucocorticosteroid and progesterone receptors (GR and PR, respectively) was studied immunohistochemically. In control adrenalectomized (Adx) rat liver, immunostaining of paraffin sections revealed GR in cell nuclei, with a wide range of intensity between individuals. Following de...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(89)90106-7
更新日期：1989-04-01 00:00:00
abstract：:Exponentially growing Chinese hamster V79-171b lung fibroblasts seeded at high density on plastic (approximately 7 x 10(3) cells/cm2) flatten, elongate, and produce significant amounts of extracellular fibronectin. When lysed in weak alkali/high salt, the rate of DNA denaturation following exposure to ionizing radiati...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(91)90105-4
更新日期：1991-04-01 00:00:00
abstract：:Zinc is found in a variety of organisms and has been suggested to be essential for many cellular functions. We report here that zinc ions (Zn2+) have a specific and striking effect on cell differentiation in the simple eukaryote, Dictyostelium discoideum. In its asexual reproduction phase, solitary cells gather to for...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1994.1269
更新日期：1994-09-01 00:00:00
