Ingebjørg N Hungnes studies the development of diphosphine bioconjugates, which are special chemical compounds designed to bind radioactive atoms to biomolecules. Specifically, she works with technetium-99m and rhenium-188, isotopes that are used in medical imaging and targeted radiation therapy for cancer treatment. Her research explores how attaching glucose molecules to these compounds can create tracers that identify tumors during scans and simultaneously deliver radiation to destroy cancer cells. This dual functionality helps streamline patient diagnosis and treatment, making it a promising area of research in oncology.
Key findings
Achieved over a 95% success rate in attaching radioactive atoms to glucose-based compounds.
Demonstrated that the newly formed molecules traveled quickly through the bloodstream in mouse models.
Showed that the compounds were safely cleared through the kidneys while remaining stable in the body.
Frequently asked questions
Does Dr. Hungnes study cancer treatment?
Yes, Dr. Hungnes researches techniques for using radioactive compounds in cancer treatment.
What is the purpose of the molecules Dr. Hungnes works on?
These molecules are designed to help diagnose tumors through imaging and deliver targeted radiation therapy to treat cancer.
How effective are the compounds developed by Dr. Hungnes?
Her compounds have demonstrated over a 95% success rate in attaching radioactive isotopes for medical use.
Are the tracers safe to use in patients?
Initial tests in mice indicate that the tracers are safely cleared from the body and remain stable.
What techniques does Dr. Hungnes use in her research?
She utilizes diphosphine bioconjugation and hydrophosphination methods to create her tracers.
Publications in plain English
From [Tc]pertechnetate to [Tc]sestamibi: Dissection of a Complex Reaction Sequence Using Radio-LC-MS.
2026
Molecules (Basel, Switzerland)
Ferreira Machado JDM, Shegani A, Hungnes IN, Pham TT, Carrascal-Miniño A +5 more
Plain English This study focused on understanding how a medical imaging compound called [Tc]sestamibi is made from another compound, [Tc]pertechnetate. Researchers discovered that the process involves multiple steps and at least 11 different radioactive forms (intermediates) during its creation, including several types of technetium ions. This is important because clarifying the synthesis process can lead to better quality control and improvements in how this imaging agent is used in medical procedures.
Who this helps: This benefits patients needing heart imaging tests, as well as doctors who use these scans for diagnosis.
Maleic anhydride derived diphosphines: adaptable chelators for receptor-targetedTc,Cu andRe radiotracers.
2025
Chemical science
Nuttall RE, Hungnes IN, Pham TT, Carter OWL, Rigby A +11 more
Plain English This study focused on developing two new chemical compounds, called DP and DP, that help attach radioactive materials to cancer-targeting molecules for better imaging of tumors using a technique called SPECT. The researchers found that these new compounds led to improved results, with a high success rate in radiolabelling, such as 90% yields, and showed promising imaging properties in mouse models of prostate cancer. This is important because it could lead to more effective and efficient ways to detect and treat cancer in the future.
Who this helps: Patients with cancer, particularly those with prostate cancer.
Receptor-Targeted Peptide Conjugates Based on Diphosphines Enable Preparation ofTc andRe Theranostic Agents for Prostate Cancer.
2024
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
Pham TT, Hungnes IN, Rivas C, Cleaver J, Firth G +7 more
Plain English This study examined new methods for creating special agents that can be used for both imaging and treating prostate cancer. Researchers developed two kits that can easily label a peptide that targets prostate cancer cells with two different radioactive elements (technetium and rhenium) for diagnostics and treatment. The results showed these new agents effectively targeted cancer cells while showing minimal effects on non-target areas, with 18-30% of the injected dose taken up by the tumors within two hours.
Who this helps: This benefits prostate cancer patients by providing more accessible diagnostic and treatment options.
Versatile Diphosphine Chelators for Radiolabeling Peptides withTc andCu.
2023
Inorganic chemistry
Hungnes IN, Pham TT, Rivas C, Jarvis JA, Nuttall RE +5 more
Plain English Researchers created a new method using diphosphine chelators to attach radioactive materials to peptides for better imaging in medical scans called SPECT and PET. They tested this method on certain cancer-targeting peptides and achieved successful results: two of the new radiotracers had high yields of 81% and 88% in just 5 minutes at 100°C, and over 95% yield with copper, meaning they worked very efficiently. This is important because it could lead to improved imaging techniques for diagnosing diseases like cancer, allowing doctors to see and target specific areas in the body more effectively.
Who this helps: This helps patients who need accurate imaging for cancer diagnosis and treatment.
Technetium Nitrido Complexes of Tetradentate Thiosemicarbazones: Kit-Based Radiolabeling, Characterization, andEvaluation.
2023
Inorganic chemistry
Kelderman CAA, Maclean RC, Hungnes IN, Davey PRWJ, Salimova E +4 more
Plain English This study explored new chemical compounds that can be used in medical imaging, specifically focusing on a type of molecule combined with Technetium-99m, a common radioisotope used in nuclear medicine. The researchers successfully created these compounds with over 90% efficiency, and the compounds showed good stability and the ability to accumulate in the brain of mice, with brain uptake of 1.6-5.7% shortly after injection. This is important because it suggests these compounds could be promising tools for imaging diseases, helping doctors detect health issues earlier and more accurately.
Who this helps: Patients needing improved diagnostic imaging for various conditions.
Diphosphine Bioconjugates via Pt(0)-Catalyzed Hydrophosphination. A Versatile Chelator Platform for Technetium-99m and Rhenium-188 Radiolabeling of Biomolecules.
2023
Inorganic chemistry
Nuttall RE, Pham TT, Chadwick AC, Hungnes IN, Firth G +5 more
Plain English Researchers developed a new chemical method to attach glucose molecules to special compounds that can grab onto radioactive atoms (technetium and rhenium), making it possible to create medical tracers that both diagnose diseases and treat them simultaneously. They successfully attached these radioactive atoms to glucose-based compounds with very high efficiency (over 95% success rate), and tests in mice showed the resulting molecules traveled quickly through the bloodstream and were safely cleared through the kidneys while remaining stable in the body. This breakthrough could allow doctors to use a single type of molecule for both detecting tumors with imaging scans and destroying cancer cells with radiation therapy.
Oxorhenium(V) and Oxotechnetium(V) Complexes of NS Tetradentate Ligands with a Styrylpyridyl Functional Group: Toward Imaging Agents to Assist in the Diagnosis of Alzheimer's Disease.
2021
Inorganic chemistry
Spyrou B, Hungnes IN, Mota F, Bordoloi J, Blower PJ +3 more
Plain English This study looked at new chemical compounds designed to help diagnose Alzheimer's disease by targeting amyloid plaques in the brain. Researchers created three new ligands and tested their ability to interact with these plaques. While the compounds were able to cross into the brain, the amount that actually got taken up was too low to make them useful for further study.
Who this helps: This advancement benefits researchers working on Alzheimer's diagnosis.
One-step, kit-based radiopharmaceuticals for molecular SPECT imaging: a versatile diphosphine chelator forTc radiolabelling of peptides.
2021
Dalton transactions (Cambridge, England : 2003)
Hungnes IN, Al-Salemee F, Gawne PJ, Eykyn T, Atkinson RA +5 more
Plain English This study looked at a new way to make radiotracers for medical imaging, specifically for targeting certain receptors in the body using a simple, one-step kit process. The researchers created a compound called DP-RGD that can be labeled with technetium-99m (Tc) and showed that this method results in more than 90% successful labeling. This is important because it simplifies the preparation of radiotracers for more accurate imaging of diseases related to specific receptors in patients.
Who this helps: Patients needing precise imaging for diagnosis and treatment planning.
Bioconjugates of Chelators with Peptides and Proteins in Nuclear Medicine: Historical Importance, Current Innovations, and Future Challenges.
2020
Bioconjugate chemistry
Jackson JA, Hungnes IN, Ma MT, Rivas C
Plain English This research paper examines how combining chelators with peptides and proteins can improve cancer treatments using radiation. The study highlights that since the 1990s, certain compounds have been effective in diagnosing and treating cancers, particularly neuroendocrine and prostate cancers, with around 90% success in identifying target receptors during imaging. Innovations in this area promise to enhance the development of new treatments and imaging techniques in nuclear medicine.
Who this helps: This benefits cancer patients by providing more effective diagnostic and treatment options.