Abstract:
:Many insect cells, including epidermis, fat body, ocnocytcs and pericardial cells, can very easily be induced to form long fine processes or filopodia. Filopodia contain microfilaments hut differ from epidermal feet in lacking microtubules and in having a much smaller and uniform diameter. Although they may be 10-30 mum long they are less than 0.1 mum wide. They often form straight connections like guy-ropes between their origins and their tips, and when freed from their surface attachments they may contract into helices, as though capable of generating tension. The basal lamina helps to keep the basal surfaces of epidermal cells together. In Rhodnius epidermis, filopodia form only seconds after its removal. They arise at the cell margins and extend to distant part of neighbouring cells where they adhere particularly at their tips. Such filopodia retract and disappear in 20-60 min with the reformation of the basal lamina as though they have functioned to pull neighbouring cells back together. In Calpodes epidermis, filopodia form from the lateral faces as well as the cell margins after trypsin digestion of desmosomes and hemidesmosomes. The observations suggest that filopodia are induced in response to cell separation and function to restore cell to cell continuity. Filopodia also form in the normal course of development where cells separate prior to their rearrangement to make new tissues as in epidermal and fat body metamorphosis. Filopodia are probably ubiquitous agents for the sensing and movement of cells relative to one another in tissue morphogenesis.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Locke Mdoi
10.1016/0040-8166(87)90014-0subject
Has Abstractpub_date
1987-01-01 00:00:00pages
301-18issue
2eissn
0040-8166issn
1532-3072pii
0040-8166(87)90014-0journal_volume
19pub_type
杂志文章相关文献
TISSUE & CELL文献大全abstract::Species that live in extreme conditions have specially adapted physiology and tissue/organ organisation. The adaptation of lymphoid organs to low temperatures in polar species could be an original field of study, indicating how the immune system works under extreme conditions. In fishes, the head kidney is a key organ...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(02)00005-8
更新日期:2002-04-01 00:00:00
abstract::The structure of the periostracum in the fresh-water mussel Amblema has been described using light microscopy, transmission elec;ron microscopy, and scanning electron microscopy. The structure and evolutive course of the periostracum was studied along its entire length, from the periostracal groove until it forms the ...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(79)90020-x
更新日期:1979-01-01 00:00:00
abstract::The fine structure of the principal and ancillary metathoracic flight muscle fibres in the adult male of a strepsipteran, Elenchus tenuicornis, is described. Power-producing dorsal longitudinal and dorso-ventral flight muscles show features consistent with myoneural asynchrony: myofibrils are large and discrete and ar...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(84)90072-7
更新日期:1984-01-01 00:00:00
abstract::Glossina austeni oogenesis throughout its nine-day pregnancy cycle is described with the focus on previtellogenic stages. The ultrastructural details of the oocyte-nurse cell relationship and cyst formation is presented. The oocyte develops in a syncytial association with 15 nurse cells with the entire unit surrounded...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(75)90007-5
更新日期:1975-01-01 00:00:00
abstract::Kupffer's vesicle, a transitory organ peculiar to teleost embryos, was investigated in embryos of Fundulus heteroclitus by scanning electron microscopy. The roof of the vesicle is constructed to rather large columnar cells which are in continuity wiht hypoblast cells. Each of the roof cells is adorned with a single lo...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(78)90003-4
更新日期:1978-01-01 00:00:00
abstract::Routine light microscopy and transmission and scanning electron microscopy were used to describe and compare the livers of larval lampreys, Lampetra lamottenii before and during infection of the bile ducts by the nematode, Truttaedacnitis stelmioides. The hepatocytes of uninfected animals differ from other lamprey spe...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(92)90073-g
更新日期:1992-01-01 00:00:00
abstract::The distribution of calcified microdeposits in non-atherosclerotic intima of the human aorta was studied by electron microscopy. Aortic specimens were obtained during aortic reconstruction and were embedded in Lowicryl resin. Non-stained ultrathin sections were analysed using an electron microscope equipped with an en...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(98)80052-9
更新日期:1998-06-01 00:00:00
abstract::This report describes the initiation, cloning and establishment of long-term serial cultures of rat heart-derived vascular endothelial (EC) and smooth muscle cells (SMC). Populations of these cells derived from both the macro-and microcirculation were obtained utilizing isolated heart perfusion technique. Elimination ...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(88)90051-1
更新日期:1988-01-01 00:00:00
abstract::This study evaluated ulceroprotective and antioxidant effect of 1,25 dihydroxyvitamin D3 against gastric damage in rats. Rats were treated intraperitoneally with either 1,25 dihydroxyvitamin D3 (0.25 μg/kg) or saline for 14 days. On day-15, the non-selective cyclooxygenase inhibitor indomethacin (10 mg/kg; subcutaneou...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/j.tice.2018.03.003
更新日期:2018-04-01 00:00:00
abstract::Mouse metrial gland explants were cultured for periods of up to 7 days. Granulated metrial gland cells migrated from the explants onto the culture dish substratum with a peak in numbers of emigrant cells usually found after 1-3 days of culture. Histological examination of the cultured explants showed that the central ...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(93)90034-i
更新日期:1993-12-01 00:00:00
abstract::The distribution of F-actin and intermediate filaments in the W/WV mouse was investigated by light and transmission electron microscopy, and fluorescence methods. No spermatogenic cells were detected in the seminiferous epithelium of the W/WV mouse. Its seminiferous tubule was one-half the diameter of that in the norm...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(92)90024-2
更新日期:1992-01-01 00:00:00
abstract::Pelagic amphipods belonging to the genus Phronima have four compound eyes; two lateral eyes and two large transparent medial eyes which comprise the entire top of the head. The eyes are structurally similar but the crystalline cones of the medial eyes are more than twenty times as long as those of the lateral eyes, re...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(77)90010-6
更新日期:1977-01-01 00:00:00
abstract::In the crayfish Astacus leptodactylus, the podobranch, bearing respiratory and ion-transporting filaments, is attached to the lamina. The Na(+)/K(+)-ATPase activity is higher in filaments than in lamina. Using a mouse monoclonal antibody directed against the alpha subunit of Na(+)/K(+)-ATPase, and indirect immunofluor...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1054/tice.1999.0063
更新日期:1999-10-01 00:00:00
abstract::We studied the morphology of rabbit psoas muscle fixed at increasing intervals of time in a chemical skinning solution (Wood et al., 1975), or after skinning and storage for times up to 1 week. The storage solution, in which the chemically skinned muscled fibers were kept at -20 degrees C, had the same ionic compositi...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(79)90062-4
更新日期:1979-01-01 00:00:00
abstract::Myosin as well as actin filaments could be seen in negatively stained preparations of fresh chicken gizzard homogenized in buffered KCI (I=0.12, pH 6.85), in a 1 : 1 ratio. Myosin filaments were also present when homogenates were diluted (1 : 9) with solutions containing additional Mg(++) and ATP provided naturally oc...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(69)80007-8
更新日期:1969-01-01 00:00:00
abstract::The electrophysiological properties and structure of heart muscle fibres of the lobster myocardium have been investigated. Discontinuities were observed in the expected decrement of electrotonic potentials in a study of the passive membrane properties of the muscle. Injection of Procion yellow revealed transverse barr...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(71)80018-6
更新日期:1971-01-01 00:00:00
abstract::Emigration of granulocytes from vessel lumen to a site of injury is a hallmark of acute inflammation but whether this migration is necessarily associated with vascular damage is not clear. To follow the structural changes associated with granulocyte migration across an intact endothelial cell layer and to assess chang...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(84)90014-4
更新日期:1984-01-01 00:00:00
abstract::We have recently shown that down-regulation of mouse Thy28 (mThy28) protein expression appears to be accompanied by apoptotic processes. Thymocytes from mice contain moderate amounts of mThy28 protein and undergo proliferation, differentiation, or apoptosis during murine thymic maturation. As a first step to examine t...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(03)00073-9
更新日期:2003-12-01 00:00:00
abstract::Direct reprogramming of specialized cells into other cell types has revolutionized the fields of stem cell, differentiation, and regenerative medicine. Direct reprogramming technology can convert various differentiated cell types to other fates by the forced expression of lineage-specific transcription factors. In add...
journal_title:Tissue & cell
pub_type: 杂志文章,评审
doi:10.1016/j.tice.2016.07.005
更新日期:2016-10-01 00:00:00
abstract::The expression of adhesion molecules on the vascular endothelium of healthy and inflamed human dental pulp was studied immunohistochemically using antibodies for selectin family and immunoglobulin super-family members. In healthy dental pulp, some vessels reacted very weakly with major histocompatibility complex (MHC)...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(98)80077-3
更新日期:1998-04-01 00:00:00
abstract::Nuclei in the giant polyploid silk gland cells of Calpodes ethlius grow by endomitosis and can develop hundreds of branches during larval life. The shape of the these nuclei is characteristic for each region of the gland. We have found shape to be correlated with arrangement of the nuclear matrix. Scanning electron mi...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(91)90036-s
更新日期:1991-01-01 00:00:00
abstract::The ovoid cells of the branchial heart complex of Sepia officinalis L. were investigated with respect to their role in detoxification processes. The electron microscopical localization of in situ injected ferritin in the endocytotic-lysosomal system, and the fluorescence microscopical localization of protein-bound Eva...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(98)80085-2
更新日期:1998-12-01 00:00:00
abstract::Brain macrophages were studied in dispersed monolayer cultures of post-natal mouse cerebella. The phagocytotic activity, binding of immunoglobulins, presence and characteristics of nucleoside diphosphatases as well as argentophilia and lipid distribution were tested, with results similar to those for brain macrophages...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(86)90067-4
更新日期:1986-01-01 00:00:00
abstract::The periostracum in Unionidae consists of two layers. The outer one is secreted within the periostracal groove, while the inner layer is secreted by the epithelium of the outer mantle fold. The periostracum reaches its maximum thickness at the shell edge, where it reflects onto the shell surface. Biomineralization beg...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1054/tice.2000.0129
更新日期:2000-10-01 00:00:00
abstract::The existence and distribution of mammosomatotrophs (MS cells) containing growth hormone (GH) and prolactin (PRL) in bovine adenohypophysis were detailed by a combined method of mirror sections and immunohistochemical staining. MS cells always occurred in bovine adenohypophysis but their number was low. In the midsagi...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1054/tice.1999.0051
更新日期:1999-10-01 00:00:00
abstract::Cell surface expression of the epidermal growth factor (EGF) receptor in several cell lines declines as a function of increased cell density and is associated with diminished responsiveness to EGF. However, the mechanism whereby this density-induced down regulation of receptors occurs has not been discerned. In the pr...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(93)90061-o
更新日期:1993-01-01 00:00:00
abstract::The aim of this study was to identify and quantify the argyrophil, argentaffin and insulin-immunoreactive cells (IIC) in the small intestine of the opossum Didelphis aurita. Seven adult male specimens of opossums were investigated. The animals were captured, and their blood insulin levels were determined. After euthan...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/j.tice.2012.04.008
更新日期:2012-10-01 00:00:00
abstract::This paper describes the fine structure of the cockroach subgenual organ, a complex ciliated mechanoreceptor that detects vibrations in the substrate upon which the animal stands. Located beneath the knee in each walking leg, the cockroach subgenual organ is a thin, fan-shaped flap of tissue slung across the dorsal bl...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/s0040-8166(75)80009-7
更新日期:1975-01-01 00:00:00
abstract::We aimed to investigate the application of adipose-derived stromal cells in the treatment of stress urinary incontinence (SUI). Animal models of stress urinary incontinence were established with Sprague-Dawley female rats by complete cutting of the pudendal nerve. Rat adipose-derived stromal cells were isolated, cultu...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/j.tice.2011.04.003
更新日期:2011-08-01 00:00:00
abstract::Standard procedures for isolating nucleic acids from specialized tissues such as the mucus-containing tissues found in many marine organisms are, in many cases, not effective, resulting in isolates contaminated with polysaccharides that encumber subsequent analysis. A method is described for isolating nucleic acids fr...
journal_title:Tissue & cell
pub_type: 杂志文章
doi:10.1016/0040-8166(94)90013-2
更新日期:1994-08-01 00:00:00