Abstract: A cell activation process is described in which an effector cell is transformed with DNA coding for a chimeric receptor containing two or more different cytoplasmic signalling components. At least one of the cytoplasmic signalling components is derived from all or part of a tetraspan-transmembrane protein, CD43, CD6, a mannose, U17, IL-12 or complement receptor, an integrin-associated protein, or a &ggr;-chain associated with a cytokine receptor. The activated cell may be of use in medicine for example in the treatment of diseases such as cancer.

Abstract: Phenylalanine derivatives of formula (1) are described: wherein R is a carboxylic acid or a derivative thereof; L1 is a linker atom or group; and R5 is a group —L2(CH2)tR6 in which L2 is a —N(R7)CO— or —N(R7)CS— group. The compounds are able to inhibit the binding &agr;4 integrins to their ligands and are of use in the prophylaxis and treatment of immune or inflammatory disorders.

Abstract: Compounds of general formula (1) ##STR1## are described wherein: Ar is an optionally substituted aromatic group;R.sup.2 is a hydrogen or halogen atom or a group --X.sup.1 --R.sup.2a where X.sup.1 is a direct bond or a linker atom or group, and R.sup.2a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group;R.sup.3 is an optionally substituted heterocycloalkyl group; and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective protein tyrosine kinase inhibitors, particularly the kinases ZAP-70 and syk and are of use in the prophylaxis and treatment of immune or allergic diseases and diseases involving inappropriate platelet activation.

Abstract: Compounds of general formula (1) are described: ##STR1## wherein Ar is an optionally substituted aromatic or heteroaromatic group;X.sup.1 is an oxygen or sulphur atom;R.sup.1 is a hydrogen atom or a methyl group;R.sup.2 is a hydrogen atom or a group --Alk.sup.1 or --X.sup.2 Alk.sup.1 where Alk.sup.1 is an optionally substituted aliphatic or heteroaliphatic group and X.sup.2 is a --C(O)--, --C(S)--, or --S(O).sub.n group where n is an integer 1 or 2;R.sup.3 is a hydrogen atom or a group --Alk.sup.2, ?where Alk.sup.2 is as defined for Alk.sup.1 !, --X.sup.2 Alk.sup.2, --Ar.sup.1 ?where Ar.sup.1 is an optionally substituted aromatic or heteroaromatic group!, --Alk.sup.2 Ar.sup.1, or --X.sup.2 Alk.sup.2 Ar.sup.1 ;and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective inhibitors of the protein tyrosine kinase p56.sup.lck and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate p56.sup.

Abstract: Tri-substituted phenyl derivatives and pharmaceutical compositions containing them. In a preferred embodiment, the compounds have the general formula (2): ##STR1## wherein L is preferably --OR.sup.1 ; R.sup.a is preferably optionally substituted alkyl; R.sup.1 is preferably optionally substituted indanyl; R.sup.3 is preferably hydrogen, fluorine, hydroxy or an optionally substituted straight or branched chain alkyl group; R.sup.4 and R.sup.5 are preferably independently --(CH.sub.2).sub.t Ar, where t is zero or an integer 1, 2 or 3 wherein Ar is preferably optionally substituted monocyclic or bicyclic aryl or optionally substituted monocyclic or bicyclic heteroaryl; and R.sup.6 and R.sup.7 are preferably independently hydrogen, fluorine or optionally substituted alkyl.

Abstract: Compounds of the general formula (1) ##STR1## are described wherein Y is halogen or --OR.sup.1, where R.sup.1 is optionally substituted alkyl; X is --O--, --S-- or --N(R.sup.8)-, where R.sup.8 is hydrogen or alkyl; R.sup.2 is optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl; R.sup.3 is hydrogen, halogen or --OR.sup.9, where R.sup.9 is hydrogen or optionally substituted alkyl, alkenyl, alkoxyalkyl, or alkanoyl, or formyl, carboxamido or thiocarboxamido; R.sup.4 is --(CH.sub.2).sub.n Ar, where Ar is monocyclic or bicyclic aryl optionally containing one or more heteroatoms selected from oxygen, sulfur and nitrogen atoms, wherein Ar is substituted by an optionally substituted C.sub.3-9 cycloaliphatic group optionally containing one or more heteroatoms selected from oxygen, sulphur or --N(R.sup.8)-, and n is zero or an integer 1, 2 or 3; R.sup.5 is --(CH.sub.2).sub.

Abstract: Tri-substituted phenyl derivatives and pharmaceutical compositions containing them. In a preferred embodiment, the compounds have the general formula (2): ##STR1## wherein L is preferably --OR; R.sup.a is preferably an optionally substituted alkyl group; R is preferably an optionally substituted cycloalkyl group; R.sup.3 is preferably hydrogen; hydrogen, R.sup.4 is preferably --(CH.sub.2).sub.t Ar, --(CH.sub.2).sub.t --Ar--(L.sup.1).sub.n --Ar' or --(CH.sub.2).sub.t ArN(R.sup.b)CX.sup.1 N(R.sup.b)L.sup.2 (Alk).sub.m Ar; R.sup.5 is preferably --(CH.sub.2).sub.t Ar, --(CH.sub.2).sub.t --Ar--(L.sup.1).sub.n --Ar' or --(CH.sub.2).sub.t ArN(R.sup.b)CX.sup.1 N(R.sup.b)L.sup.2 (Alk).sub.m Ar; R.sup.6 and R.sup.7 are preferably hydrogen, L.sup.1 and L.sup.2 are preferably divalent linking groups; Ar is preferably a monocyclic or bicyclic aryl or heteroaryl group; and Ar' is preferably Ar or an Ar containing group.

Abstract: Compounds of formula (1) are described, wherein R.sup.1 represents (a), where R.sup.3 is a hydrogen or halogen atom or a methyl, trifluoromethyl or methoxy group; R.sup.2 represents a hydrogen atom or a methyl group; and the salts, solvates, hydrates and prodrugs thereof. The compounds are potent and selective orally active inhibitors of the metalloproteinase gelatinase with a long duration of action, and in particular inhibit angiogenesis in vivo. They can therefore be expected to be of use in the prophylaxis or treatment of angiogenesis dependent disorders such as solid tumours and arthritic diseases.

Abstract: A device for performing an enzyme-labelled binding assay comprises an absorbent material and a developing solution, wherein the absorbent material is provided with a plurality of reagent zones including an indicator reagent zone, and is capable of transporting the developing solution by capillary action sequentially through each reagent zone, and wherein the indicator reagent zone includes a reagent capable, directly or indirectly, of immobilizing an enzyme-labelled reagent in an amount dependent upon the assay result, characterized in that the developing solution includes a signal producing substrate for the enzyme. The substrate moves slower through the absorbent material than the enzyme-labelled reagent or any compound of the enzyme-labelled reagent formed in the assay. The absorbent material is suitably in the form of an elongate strip provided with transverse reagent zones. The device is useful form performing immunoassays including immunometric assays and dual analyte assays.