Pancreatic cancer is often detected at a late stage, which results in poor prognosis and limited treatment options.
Researchers at The University of Gothenburg in Sweden have now developed a method which identifies the cancer’s visible precursors with 97% certainty.
The method, which is expected to aid in the early discovery of the cancer as well as minimize the risk of unnecessary surgery, may be introduced in patient care within five years.
The poor prognosis for pancreatic cancer, where only 5 percent of the patients survive five years after the diagnosis, is due to the fact that the tumors often develop unnoticed, and rarely cause symptoms until they have spread to other organs. Recent studies, however, have shown that fluid-filled compartments in the pancreas, called cysts, may be precursors of the cancer.
Cysts in the pancreas, which are found in every 10th person above the age of 70, and are also common in younger people, can be discovered with computed tomography (CT) or magnetic resonance imaging (MRI).
The problem is that imaging alone cannot determine which cysts are at risk for developing into cancer. Therefore, it often becomes necessary to puncture the cyst and look for tumor markers in the cyst fluid but not even these analyses are reliable.
Removing the cyst by surgery, with the knowledge that it may turn out to be completely benign, is also problematic since the operation is extensive, with considerable risks for the patient.
Researchers at The Sahlgrenska Academy, University of Gothenburg, have now developed a method which can predict with 97 percent certainty which pancreatic cysts constitute precursors to cancer. With this method, which detects the presence of mucus protein, mucins, in the cystic fluid, the researchers were able to reach the correct diagnosis in 77 of 79 cysts that were examined.
– This is an exceptionally good result for a diagnostic test, and we are very hopeful that the method will enable more instances of early discovery of pancreatic cancer, at a stage when the cancer can be treated or prevented. This approach may also minimize the risk of unnecessary operations on non-malignant cysts, said Karolina Jabbar, PhD student at The Sahlgrenska Academy and physician at The Sahlgrenska University Hospital.
The researchers have also tested the new method in order to analyze existing tumors and, with about 90 percent certainty, have been able to determine which tumors have already developed into cancers. This means that the method could also be used to determine which patients require immediate surgery, and when it is instead possible to wait and monitor the development of the cyst.
The method which has been used in the study is called proteomics, which means the analysis of the protein content of a tissue or fluid with the help of mass spectrometry . This method has thus far been used in research. But Professor Gunnar C. Hansson who, together with senior physician and Assistant Professor Riadh Sadik, initiated the study, is convinced that the proteomics will soon be introduced in health care.
– The technique has been developed, and we can now measure biomarkers both quickly and exactly. Moreover, the method requires minimal biomaterial, in this case 25 times less cyst fluid than conventional tumor marker analyses. I am certain that within five years the mass spectrometers will have moved into the hospital corridors, he said.
The article, Proteomic mucin profiling for the identification of cystic precursors of pancreatic cancer has been published in the respected cancer journal, Journal of the National Cancer Institute.
Link to the article: http://jnci.oxfordjournals.org/content/106/2/djt439.full?keytype=ref&ijkey=X...
Karolina Jabbar, PhD student at The Sahlgrenska Academy, University of Gothenburg,
+46 31 786 38 61, email@example.com
Gunnar C. Hansson, Professor at The Sahlgrenska Academy, University of Gothenburg,
+46 31 786 34 88, firstname.lastname@example.org
Ulrika Lundin | idw - Informationsdienst Wissenschaft
Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Chemists at FAU successfully demonstrate imine hydrogenation with inexpensive main group metal
22.05.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology