Abstract：
:Cells dissociated from spontaneous and transplanted tumours of C3HJax mammary gland have been cultured on polylysine and gelatin substrates. The isolated cells proliferated to form monolayers with high degree of organoid structure as indicated by formation of alveolar cavities. Differences were observed in the cell attachment, growth pattern, number and size of alveolar cavities, cells which lined the cavity and cell morphology on polylysine and gelatin substrates as compared to conventional cell culture plastic surface. On polylysine more than 90% cells attached rapidly, within 15-45 min after plating, with or without serum and formed confluent monolayers marked by presence of large and small alveolar cavities. Multiple interacting cell types took part in organization of the cavity. Cells lining the cavity constantly proliferated and rearranged to expand it. On gelatin, 60-70% cells attached over a period of 6-24 hr in presence of serum and formed confluent monolayers dominated by small alveolar cavities. Cells forming the cavities were epithelial in nature and cavities once formed did not increase in size. Upon subculture, the cell morphology on these substrates was strikingly different. On polylysine, the predominant cell type had numerous irregular microvilli whereas on gelatin, cells had smoother boundaries with a few stunted cytoplasmic extensions. The cell attachment on conventional surface was low, 40-50%. When seeded at high cell density, formation of alveolar cavities was suppressed and at low cell density, cultures were marked by contact inhibition of cells and failure to attain confluence. These results suggest differential behaviour and interaction of mammary tumour epithelium with the substrates used.
journal_name
Indian J Exp Bioljournal_title
Indian journal of experimental biologyauthors
Kulkarni S,Shethna YIkeywords:
subject
Has Abstractpub_date
1992-09-01 00:00:00pages
761-8issue
9eissn
0019-5189issn
0975-1009journal_volume
30pub_type
杂志文章abstract：:Effect of cerebellar lesion and vestibular stimulation (VS) on the activity and alternation of ECL-cells along with changes in gastric volume and acid secretion was studied. The results suggest that cerebellar lesion caused increased gastric volume and acid secretion and tended to decrease ECL-cell density. On the oth...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-06-01 00:00:00
abstract：:The mechanism of uterine muscle contraction stimulated by a triterpenoid glycoside (dalsaxin) isolated from the root of D. saxatilis was investigated by in vitro methods in the rat. Dalsaxin caused a dose-related increase in uterine muscle contraction. The contraction was single and transient and was abolished by mode...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-04-01 00:00:00
abstract：:Eclosion rhythm parameters of D. ananassae strains originating between 8 degrees-34 degrees N were highly variable and latitude dependent. In the field under naturally fluctuating light intensity, temperature and R.H., the amplitude of the rhythm was high and the eclosion gate was narrow; however, under the naturally ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：:Prostatic diseases affect men over the age of 45 and increase in frequency with age so that by the eighth decade more than 90% of men have Benign Prostatic Hyperplasia, (BPH), of which some progress to Carcinoma of Prostate (CaP). CaP, the most common malignancy in men, is also the second most common cause of death in...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章,评审
doi：
更新日期：1999-07-01 00:00:00
abstract：:The genomic and cDNA sequences of BnSUT1C were isolated from B. napus. Combination of cDNA and genomic DNA sequences revealed that the BnSUT1C gene contained three exons and two introns. The cDNA encodes a protein of 513 amino acids with a calculated molecular mass of 54.7 kDa and an isoelectric point of 9.12. It exhi...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：:Estradiol-17beta (E2) at the dose of 1 microg/g caused an increase in cell area, lumen area and the total (cell + lumen) area of posterior silk gland (PSG) in Bombyx mori indicating that exogenously applied estradiol-17beta has a regulatory influence on silk gland activity. A dose-dependent variation in trehalase acti...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2001-11-01 00:00:00
abstract：:Fibre and non-fibre components and proteolytic activity of fore- and hindlimb muscles with different fibre composition and functions were examined in streptozotocin-induced diabetic rats. From hindlimb, extensor digitorum longus (EDL), medial gastrocnemius (MG) and soleus (SOL) were selected to represent muscles rich ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:Dose matched comparison between copper complex of tolmetin(Tol-Cu) and tolmetin(Tol) was carried out in male albino rats bearing either sutured incision, dead space or excision wounds. Results showed that Tol significantly decreased tesile strength of incision and dead space wound. This effect was totally reversed by ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
abstract：:Mast cell dynamics has been studied in relation to cystogenesis of ovarian follicles in the house rat. Immature rats were injected (s.c.) daily with DHEA (6.0 mg/100 g body weight) and were sacrificed on the day 8, 16 and 24 of the start of treatment. Ovarian sections of the treated rats had majority of the antral fol...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:A new cell line has been established from larval hemocytes of the moth, S. litura (tobacco cut worm). It took 147 days to form a monolayer and one year for the first 17 passages. At present, the culture is at 86th passage level and is designated NIV-SU-1095. Three cell types could be distinguished, viz. plasmatocytes ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2000-12-01 00:00:00
abstract：:Effect of coumestans isolated form the leaves of W. calendulacea was evaluated in paracetamol induced liver damage. The increased serum enzyme levels (lactate dehydrogenase, alanine and aspartate transaminase and alkaline phophatase) by paracetamol induction were significantly lowered due to coumestans treatment. Resu...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:Effects of ampicillin (Amp) in combination with riboflavin on septic arthritis in mice infected with Staphylococcus aureus have been reported. Ampicillin was given at 100 mg/kg after 24 h of infection, followed by riboflavin (Ribo) at 20 mg/kg body wt, after 2 h of Amp treatment. Mice were sacrificed at 3, 9, 15 days ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2012-10-01 00:00:00
abstract：:Formation of strand-breaks in DNA and its repair in Yoshida ascites tumor cells exposed to gamma radiation (100-400 Gy) in presence and absence of misonidazole (10 mM) were studied. The methodology involved pre-labelling of cellular DNA by 3H-thymidine during cell proliferation in rats, irradiation of cells in vitro a...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
abstract：:Majority of the Indian soybean cultivars are recalcitrant to tissue culture regeneration. The present communication reports the development of somatic embryogenesis in a liquid culture medium from immature cotyledons of G. max. Following induction with 2,4-dichlorophenoxyacetic acid (2,4-D) or naphthalene acetic acid ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2013-10-01 00:00:00
abstract：:The present study revealed the damaging effects of copper and hydrogen peroxide on DNA isolated from human blood in in vitro. Ultra violet spectral studies showed that copper and H2O2 alone (at 20 mM) caused destabilization of DNA structure. Notwithstanding, the effect was more prominent in combination of copper and H...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:Progesterone, primarily recognized as a female steroid hormone, is reported to affect several sperm functions especially capacitation, motility and acrosome reaction. These effects of progesterone on the spermatozoa are mediated via the progesterone binding sites/progesterone receptor (PR) on the acrosomal membrane. T...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章,评审
doi：
更新日期：2003-07-01 00:00:00
abstract：:Intestinal uptake of lysine in rats progressively decreased with an increase in pH from 5.2 to 8.5, both in the presence and absence of Na+ ions. At pH 5.2 lysine uptake was 30-35% more than that at neutral pH. Na+ activated lysine uptake by 40-50% at pH 5.2 and it was increased to 110-120% at neutral pH. The observed...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1993-06-01 00:00:00
abstract：:Substance P (SP) injection in the plantar region of rat hind paw caused a dose related inflammation, which reached a peak within 10 min of injection and declined after 60 min. Low doses (0.25-0.063 mg/kg) of SP-antagonists like (D-Pro2, D-Trp7,9)-SP and (D-Pro2, D-Phe7, D-Trp9)-SP pretreatment significantly inhibited ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:The present method involves conversion of the aldehyde produced, as a result of serotonin deamination by monoamine oxidase, to its 2:4 dinitrophenyl hydrazone derivative which gives a stable, bright yellow colour in alkaline solution and can be measured colorimetrically. The derivative is however unstable in the acidi...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1989-03-01 00:00:00
abstract：:The effect of exogenous administration of cortisol (0.2 microg/g body weight) for 24, 48 and 72 hr on the gill epithelium of Tilapia has been studied. The results clearly revealed that out of the three sub-types of chloride cells viz., shallow basin, wavy convex and deep hole, the shallow basin ones are the most abund...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2004-04-01 00:00:00
abstract：:The in vitro percutaneous absorption of verapamil hydrochloride (VHCl) was investigated in order to assess its feasibility for transdermal development. The experiments were carried across mice and guinea pig skins using Keshary-Chien diffusion cell. The values of diffusion rate (J) and permeability coefficient (Kp) ac...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:Shoot tip explants of 5.chickpea varieties were evaluated for efficiency of rooting using MS basal medium (1/4, 1/2 and full strength). Maximum rooting was observed in 3 varieties when cultured in MS medium with 1/4 strength. Plantlets thus developed, were further cultured in Hoagland solution (1/4 strength) for 15-20...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1996-08-01 00:00:00
abstract：:In vitro treatment of erythrocytes of normal and hypercholesterolemic rats with N-nitrosodiethylamine (NDEA), an important carcinogen frequently present in human environment and food chain resulted in a marginal increase in osmotic fragility of erythrocytes without affecting their antioxygenic potential as evidenced b...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:N-formyl-methionyl-leucyl-phenylalanine (fMLP) a potent chemotactic peptide stimulates immune responses by activating macrophages and other cells of the immune system. The present study reports inhibition of fMLP-induced activation of murine peritoneal and P388D-1 macrophage cell line by protein kinase C (PKC) inhibit...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
abstract：:Under general anesthesia and sterile conditions, incision wound was induced in the hard palate mucosa of adult male mice. The wounds of groups 1 and 2 were irradiated daily with He-Ne laser at 3 and 7.5 J/cm2 for 120 and 300 s, respectively, while the incision wound of group 3 not exposed served as controls. On day 3 ...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2011-05-01 00:00:00
abstract：:Acute single dose administration of lanthanum chloride (250 mg/kg body wt, ip) to chicks have been found to alter the levels of enzymes of the antioxidant defence system of chick renal cortex fractions. Such changes involved significant decrease in activities of glucose-6-phosphate dehydrogenase, glutathione reductase...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：1992-12-01 00:00:00
abstract：:FtsZ plays an important role in bacterial cell division by polymerizing to form the Z ring at the site of cytokinesis. Phytochemicals are known to disrupt bacterial cell division through inhibition of FtsZ assembly. In the present study phytochemicals like eugenol, trans-cinnamic acid, 4-formyl cinnamic acid, naringen...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2008-11-01 00:00:00
abstract：:There was a significant increase in fucose (52%), total hexoses (16%) and hexosamine (56%) except sialic acid, which was reduced (77%) in the microvillus membrane of infants born to rat mothers made diabetic by injecting alloxan on day 3 of gestation. Expressed on the protein basis there were a significant increase in...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:Ascaridia galli, the common intestinal nematode, remains a major cause of economic loss in the poultry industry in developing countries. Treatments using chemicals are not only expensive but also affect host health. Plant extracts as better alternative is gaining significance. Here, we have studied the effects of alco...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:Aqueous extract of leaves of M. oleifera was investigated and rationalised for its wound healing activity. The aqueous extract was studied at dose level of 300 mg/kg body weight using resutured incision; excision and dead space wound models in rats. Significant increase in wound closure rate, skin-breaking strength, g...
journal_title：Indian journal of experimental biology
pub_type： 杂志文章
doi：
更新日期：2006-11-01 00:00:00
