Atropa belladonna L. is the commercial plant to produce tropane alkaloids including hyoscyamine and scopolamine, which are widely used as anticholinergic agents. In the present study, the genes encoding the key enzymes including putrescine N-methyltransferase (PMT) and hyoscyamine 6β-hydroxylase (H6H) were simultaneously overexpressed in transgenic hairy root cultures of A. belladonna. All of t...

Culture studies of peripheral blood mononuclear cells from 7 entirely typical cases of hairy cell leukemia showed that after culture in the presence of PHA for 2--5 days, the predominant cell type changed from E- SIg+ CIg+ gamma FcR+ muFcR+ hairy cells to an E+ SIg- CIg- gamma FcR-muFcR- population of transformed cells derived from hairy cells. Depletion and readdition experiments demonstrated ...

zogenes are differentiated cells capable of the biosynthesis of secondary metabolites. Hairy roots also have a high rate of proliferation. They are therefore expected to become widely used culture systems for the production of useful secondary metabolites and for studies on the production of biologically active compounds and transformation of organic substrates. We reported the production of a ...

A number of plants can be successfully transformed by Agrobacterium rhizogenes through the transfer of T-DNA from agrobacteria to the plant genome. Transgenic tissue – hairy roots – is produced as a result of the transformation process. This organized, genetically stable, hormone-independent transformed tissue is capable of accomplishing complex metabolic pathways, including biosynthesis and ac...

Monoclonal antibodies defining B-, T-, and myeloid-restricted cell surface antigens were used to characterize the lineage and state of differentiation of tumor cells isolated from 22 patients with hairy cell leukemia (HCL). These tumors were shown to be of B lineage because they strongly expressed the B cell-restricted antigens B1 and B4 and lacked T cell- and monocyte-restricted antigens. More...

Salvia miltiorrhiza is an annual plant growing in China, Mongolia, Korea and some other Asian countries. The extract from S. miltiorrhiza roots has been used for supporting healthy cardiovascular and circulatory systems during the last decade. The active constituents of S. miltiorrhiza from different areas vary significantly, and the wild resources are overexploited. To adapt the demand for act...

The aim of the study was to obtain transformed roots of Rhaponticum carthamoides and evaluate their phytochemical profile. Hairy roots were induced from leaf explants by the transformation of Agrobacterium rhizogenes strains A4 and ATCC 15834. The best response (43%) was achieved by infection with A4 strain. The effects of different liquid media (WPM, B5, SH) with full and half-strength concent...

Rosmarinic acid is one of the main active components of Coleus blumei and is known to have numerous health benefits. The pharmacological significance of rosmarinic acid and its production through in vitro culture has been the subject of numerous studies. Here, the ability of different tissues to accumulate rosmarinic acid and sustainability in production over long cultivation have been tested. ...

Plants remain a major source of new drugs, leads and fine chemicals. Cell cultures deriving from plants offer a fascinating tool to study plant metabolic pathways and offer large scale production systems for valuable compounds - commercial examples include compounds such as paclitaxel. The major constraint with undifferentiated cell cultures is that they are generally considered to be genetical...

Hairy polyp is an unusual, rare benign developmental malformation of neonates and infants. Embryologically, they are lesions containing both ectodermal mesodermal origin. Based on size, location the lesion, can produce symptoms such as feeding difficulties, airway obstructions, apneic episodes. We present a case hairy at Oro/Nasopharynx causing difficulties immediately after birth. explained mo...