Search for dissertations about: "bombesin gastrin-releasing peptide"

Found 3 swedish dissertations containing the words bombesin gastrin-releasing peptide.

  1. 1. Bombesin Antagonists for Targeting Gastrin-Releasing Peptide Receptor-Positive Tumors : Design, Synthesis, Preclinical Evaluation and Optimization of Imaging Agents

    Author : Zohreh Varasteh; Anna Orlova; Roger Schibli; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bombesin; Gastrin-releasing peptide receptor GRPR ; Antagonist; Radionuclide molecular imaging;

    Abstract : This thesis is focused on the development, preclinical evaluation, and optimization of radiotracers for the detection of gastrin-releasing peptide receptor (GRPR)-expressing tumors. The work is divided into three distinct parts: (1) the development of bombesin (BN) antagonist (RM26)-based imaging radiotracers for the detection of GRPR-expressing tumors using different positron emission tomography (PET) and single photon emission computed tomography (SPECT) radionuclides (68Ga, 18F and 111In), (2) the establishment of a method to monitor the ligand-G protein-coupled receptor (GPCR) interaction in real time without requiring purification and stabilization of the receptors, and (3) the evaluation of radiopeptide structure-related factors (length of mini-PEG linker and composition of chelator for metal labeling) affecting the in vitro and in vivo characteristics of RM26-based tracers. READ MORE

  2. 2. Prostate cancer theranostics using GRPR antagonist RM26

    Author : Bogdan Mitran; Anna Orlova; Vladimir Tolmachev; Ulrika Rosenström; Tony Lahoutte; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gastrin-releasing peptide receptor GRPR ; Bombesin; Prostate-specific membrane antigen PSMA ; Antagonist; Radionuclide molecular imaging; Theranostics; Peptide receptor radionuclide therapy PRRT .;

    Abstract : The malignant transformation of cells is often associated with an alteration of their molecular phenotype, resulting in overexpression of several cell surface proteins. Gastrin-releasing peptide receptor (GRPR) and prostate-specific membrane antigen (PSMA) are examples of such pro-teins that are expressed at a high density in prostate cancer. READ MORE

  3. 3. Neuropeptides and neurotrophins in arthritis : studies on the human and mouse knee joint

    Author : Ola Grimsholm; Sture Forsgren; Solbritt Rantapää-Dahlqvist; Elvar Theodorsson; Umeå universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; neuropeptides; neurotrophins; bombesin gastrin-releasing peptide; substance P; brain-derived neurotrophic factor; synovial tissue; knee joint; rheumatoid arthritis; Anatomy; Anatomi;

    Abstract : Neuropeptides, such as substance P (SP) and bombesin/gastrin-releasing peptide (BN/GRP), and neurotrophins are involved in neuro-immunomodulatory processes and have marked trophic, growth-promoting and inflammation-modulating properties. The impact of these modulators in rheumatoid arthritis (RA) is, however, unclear. READ MORE