Around 10,800 people are diagnosed with pancreatic cancer each year in the UK causing over 9,500 deaths a year. PDAC is one of the leading causes of cancer-related deaths with only 13% of patients surviving 5 or more years¹ and 4.3% surviving 10 or more years². 

New research published in Nature, shows that there are higher levels of a protein called SPP1 in the blood of patients with later stage pancreatic cancer and this correlates to worse outcomes. When scientists block the formation of this protein in mice, they lived 3 times longer and showed fewer cells that are pivotal in causing the spread of cancer to other organs. 

Working with our Human Organoid Facility and Biobank, the research team grew pancreatic organoids – a 3D in-vitro cellular model derived from patient samples designed to mimic a tumour environment. When the team switched off the gene that made SPP1, fewer tumours grew compared to when SPP1 was present.  Similar findings were also seen in mice with PDAC, where treatment with an antibody to block SPP1 significantly extended their survival with no cancer spread to other organs.  

This work builds on previous findings by the same group that found that having low levels of GREM1 protein led to more cancer spread³. This means that SPP1 and GREM1 have directly opposing effects; blocking SPP1 raises the level GREM1 therefore preventing pancreatic cells transforming into more aggressive forms that spread to other parts of the body.  

This research paves the way for new treatment to be developed to target SPP1 to treat and prevent the spread of PDAC.

Prof Axel Behrens says “Pancreatic cancer has a long history of poor patient outcomes due to its commonly aggressive nature. Now that we’ve been able to identify key proteins that contribute to its aggressiveness, the next step is to develop a treatment that targets them to hopefully help patients live longer.”