摘要:
Camptothecin derivatives of camptothecin of formula (I), wherein the groups R1, R2 and R3 are as defined in the description are disclosed. The compounds of formula (I) are endowed with antitumor activity and show a good therapeutic index. Processes for the preparation of the compounds of formula (I) and their use in the preparation of medicaments useful in the treatment of tumors, viral infections and antiplasmodium falciparum are also disclosed.
摘要:
Compounds of Formula (I) are described in which the R1 group is as defined in the specification and includes the condensation of the camptothecin molecule in position 7 with a cyclopeptide containing the RGD sequence. Said compounds are endowed both with high affinity for integrin receptors αvβ3 and αvβ5 and with selective cytotoxic activity on human tumor cell lines at micromolar concentrations.
摘要:
Compounds of Formula (I) are described; in which the R1 group is as defined in the specification and includes the condensation of 7-t-butoxyiminomethylcamptothecin in position 20 with a cyclopeptide containing the RGD sequence. Said compounds are endowed both with high affinity for integrin receptors αvβ3 and αvβ5 and with selective cytotoxic activity on human tumour cell lines at micromolar concentrations.
摘要:
An apparatus is described, for the characterisation of pigmented skin lesions, which comprises an instrument for the acquisition of a plurality of images of the lesion, filmed with lighting at different wavelengths, means designed to segment and parameterise each of said images, means designed to extrapolate a data set from said images and input said data into a neural network system, means designed to compare the results processed by said neural network with the results obtained following similar processing of known cases, and means designed to vary the weighting of each parameter supplied to the neural network on the basis of said results.
摘要:
Kit for use in the determination of the proliferative activity in human tumours, characterized mainly by a container containing, in assembled and lyophilized form, the four basic components (culture medium, antibiotic, serum and radioactive metabolic precursor) necessary to fix the tumoural material fragments rapidly and easily, without any fear of degradation and granting reliable results.