This invention provides compounds and compositions useful as imaging tracers for positron emission tomography myocardial perfusion imaging (PET MPI). Compounds in accordance with embodiments of the invention will generally comprise three structural elements: i) a triphenylphosphonium moiety; ii) a chelating element; and iii) a hydrophobic element. The tracer compounds are preferably radiolabeled with .sup.64Cu or .sup.18F. Also provided are methods for synthesizing the compounds, methods for derivatizing the compounds, and derivatives thereof.

A method of preparing a .sup.64Cu-BaBaSar-RGD.sub.2 solution is provided. The method includes lyophilizing a solution of BaBaSar-RGD.sub.2 and adding a .sup.64Cu solution to the lyophilized BaBaSar-RGD.sub.2.

Alkylphosphocholine analogs incorporating a chelating moiety that chelates a radioactive metal isotope are disclosed herein. The alkylphophocholine analogs, which can be used to treat or detect solid tumors, have the formula:

##STR00001##

R.sub.1 includes a chelating agent that is chelated to a metal atom, wherein the metal atom is a positron or single photon emitting metal isotope with a half life of greater than or equal to 4 hours, or an alpha, beta or Auger emitting metal isotope with a half life of greater than 6 hours and less than 30 days; a is 0 or 1; n is an integer from 12 to 30; m is 0 or 1; Y is —H, —OH, —COOH, —COOX, —OCOX, or —OX, wherein X is an alkyl or an arylalkyl; R.sub.2 is —N.sup.+H.sub.3, —N.sup.+H.sub.2Z, —N.sup.+HZ.sub.2, or —N.sup.+Z.sub.3, wherein each Z is independently an alkyl or an aroalkyl; and b is 1 or 2.

A radioactive biodegradable adhesive system can include a first component and a second component. The second component can include a radioactive material. The first component and the second component are configured to polymerize to form a radioactive bolus. A method for treating a patient in need of brachytherapy can include providing the radioactive biodegradable adhesive system. The first component and the second component can be applied to a predetermined location to form the radioactive bolus at the predetermined location.

The invention relates to novel multi-modality probes for imaging, tracking and analyzing stem cells and related biological samples, and methods of preparation and use thereof. The molecular probes of the invention are constructed, for example, by utilizing (a) the high selectivity of long hydrocarbon chains for binding to plasma membranes of cells, (b) a near-infrared (NIR) dye for optical imaging, and (c) a radionuclide for PET or SPECT imaging. The in vitro and in vivo data of the optical and radiolabeled probes demonstrated their utility for detecting the presence of stem cells with multiple imaging modalities.

Disclosed is a compound of formula (I):

##STR00001##

wherein L, R.sup.1-R.sup.5, A, B, M, and n are as defined in the specification, as well as a method of preparing the compound. Also disclosed are a method of blood-pool imaging in a mammal and a method of imaging a lymph node in a mammal, comprising use of the compound.

The present invention provides a compound represented by the formula (1) or a salt thereof, or a complex of the compound or the salt with a metal, in the formula (1), A.sup.1 represents a chelate group; R.sup.1 represents a hydrogen atom or the like; R.sup.2 represents a hydrogen atom or the like; and Z.sup.1, Z.sup.2, Z.sup.3, Z.sup.4, and Z.sup.5 are the same or different and each represent a nitrogen atom or CR.sup.3 or the like wherein R.sup.3 represents a hydrogen atom or an optionally substituted C.sub.1-6 alkyl group or the like; L.sup.1 represents a group represented by the formula (3) wherein R.sup.13, R.sup.14, R.sup.15, and R.sup.16 are the same or different and each represent a hydrogen atom or the like; L.sup.2 represents an optionally substituted C.sub.1-6 alkylene group; and L.sup.3 represents an optionally substituted C.sub.1-6 alkylene group. ##STR00001##

A method of labelling biological molecules with .sup.18F, via attachment of fluorine to a metal complex, where the metal complex is conjugated to the biological molecule. The invention highlights the incorporation of hydrogen bonding (H-bonding) into the metal complex scaffold, and how this can be utilized to improve the kinetics of fluoride incorporation. Also provided are pharmaceutical compositions, kits and methods of in vivo imaging.

The present application relates to antibodies which bind specifically to chelated radionuclides, including bispecific antibodies, It further relates to the use of such bispecific antibodies in applications such as radioimmunoimaging and radioimmunotherapy. It additionally relates to clearing agents and useful in such methods.

Excessive deposition of extracellular matrix is a hallmark of Idiopathic pulmonary fibrosis (IPF), it is advantageous to target the cells and the mechanisms associated with this process. By targeting myofibroblasts (specialized contractile fibroblasts) that are key for the development of IPF with drugs conjugated with fibroblast activation protein (FAP), this technology helps minimize the production of extracellular matrix in the lungs and provides a new treatment option for patients diagnosed with IPF.