Connect with us
Advertisement
Advertisement

News

Reprogrammed virus offers hope as cancer treatment

Published

on

A CANCER treatment that can completely destroy cancer cells without affecting healthy cells could soon be a possibility, thanks to research led by Cardiff University.

The team of researchers has successfully ‘trained’ a respiratory virus to recognise ovarian cancer and completely destroy it without infecting other cells. The reprogrammed virus could also be used to treat other cancers such as breast, pancreatic, lung and oral.

Dr Alan Parker from Cardiff University’s School of Medicine said: “Reprogrammed viruses are already being used in gene therapy procedures to treat a range of diseases, demonstrating they can be trained from being life-threatening into potentially lifesaving agents.

“In cancer treatment, up until now, reprogrammed viruses have not been able to selectively recognise only the cancer cells and would also infect healthy cells, resulting in unwanted side effects.

“We’ve taken a common, well-studied virus and completely redesigned it so that it can no longer attach to non-cancerous cells but instead seeks out a specific marker protein called αvβ6 integrin, which is unique to certain cancer cells, allowing it to invade them.

“In this case we introduced the reprogrammed virus to ovarian cancer which it successfully identified and destroyed.

“This is an exciting advance, offering real potential for patients with a variety of cancers.”

Once the virus enters the cancer cell it uses the cell’s machinery to replicate, producing many thousands of copies of itself, prior to bursting the cell and thereby destroying it in the process. The newly released viral copies can then bind and infect neighbouring cancer cells and repeat the same cycle, eventually removing the tumour mass altogether.

The virus also activates the body’s natural immune system, helping it to recognise and destroy the malignant cells.

The reprogrammed virus is from a group of respiratory viruses called adenoviruses. The advantage of using these viruses is that they are relatively easy to manipulate and have already been safely used in cancer treatment.

The technique used to reprogramme the virus to identify the protein common to ovarian, breast, pancreatic, lung and oral cancers could also be used to manipulate it so that it would recognise proteins common to other groups of cancers.

Additional refinement to the viral DNA could also allow the virus to produce anticancer drugs, such as antibodies, during the process of infecting cancer cells. This effectively turns the cancer into a factory producing drugs that will cause its own destruction.

The research was carried out in a laboratory, using mice with ovarian cancer, and has not yet reached clinical trials. The next step is to test the technique with other cancers, with a view to starting clinical trials in five years’ time.

Dr Catherine Pickworth from Cancer Research UK said: “It’s encouraging to see that this virus, which has been modified to recognise markers on cancer cells, has the ability to infect and kill ovarian cancer cells in the lab. Viruses are nature’s nanotechnology and harnessing their ability to hijack cells is an area of growing interest in cancer research.

“The next step will be more research to see if this could be a safe and effective strategy to use in people.”

The team includes researchers from Cardiff University; the Mayo Clinic in Rochester, USA; Glasgow University; the South West Wales Cancer Institute; and Velindre Cancer Centre.

The research was funded by Cancer Research UK, Tenovus Cancer Care and Cancer Research Wales.

The paper ‘Ad5NULL-A20 – a tropism-modified, αvβ6 integrin-selective oncolytic adenovirus for epithelial ovarian cancer therapies’ is published in Clinical Cancer Research.

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

featured

A level results still high in Ceredigion

Published

on

THE ‘A’ level examination results published today by the WJEC (15 August) show that high standards are being achieved in Ceredigion schools once again. 97.9% of entries for WJEC examinations were graded A* to E, with 27.9% of the entries achieving the top ’A’ grades.

Ceredigion pupils continue to outperform the Welsh average. More pupils in Ceredigion achieve the top ’A’ grades and A* to E grades. The below table shows a comparison with average Welsh figures. These don’t include Welsh Baccalaureate results and those from examination bodies other than WJEC.

Wales 2019             Ceredigion 2019

Grade A* – A           27.92%                    27.0%

Grade A* – B           56.0%                      n/a

Grade A* – C          77.5%                        n/a

Grade A* – E          97.9%                       97.6%

Councillor Catrin Miles is the Cabinet member responsible for Learning Services. She said, “I would like to extend my warmest congratulations once again to Ceredigion’s sixth form students for their successes in this year’s A Level and AS examinations.

These results are the culmination of a long journey through school life which has seen them nurture and develop the academic and interpersonal skills that will enable them to move confidently into higher education, training or employment in fields of their choice. I wish them good luck for the future and would like to sincerely thank all who have contributed to their school journey in any way.”

Continue Reading

News

MP Ben Lake calls for reform of police funding

Published

on

HAVING recently shadowed Dyfed Powys Police officers in Aberystwyth, the Ceredigion MP has again urged the UK Government to review the police funding formula for rural areas.

Mr Lake visited Aberystwyth police station as part of the #GiveADayToPolicing campaign, a scheme for Members of Parliament to better understand the challenges currently facing police forces across the UK.

During his visit Mr Lake had the opportunity to experience a variety of aspects of local policing – from spending time with the neighbourhood policing team, meeting officers from different departments, and discussing policing challenges with front-line police officers.

Mr Lake has challenged the UK Government on several occasions to reform the formula for police funding – highlighting the need for the funding formula to take into consideration the seasonal pressures on forces, particularly the significant increase to the population of coastal areas during the summer months.

Mr Lake said: “I am very grateful to the officers of Aberystwyth police station for their welcome, and for taking the time to speak with me. I now have a better understanding of the challenges our police officers face, as well as a deeper level of respect and admiration of their work and commitment to public safety.

“As I have previously stated, we cannot expect a one size fits all approach to work effectively across the whole of the UK, and as such, it is imperative that the criteria used to allocate the Home Office police grant are revised so that they reflect the increased demands and unique challenges facing rural forces in areas such as Ceredigion, especially during summer months.”

Mr Lake added: “It is widely acknowledged that Welsh police forces have suffered under the present funding formula, and so it is high time that the UK Government either amends the formula accordingly, or devolves the responsibility for policing to the Welsh Government so that they may do so themselves.”

Continue Reading

featured

New waste trial launched in Aberystwyth

Published

on

A NEW trial has been launched in Aberystwyth as part of the Caru Aber campaign, to help keep the town centre clean on waste collection days.

Heavy duty sacks will be placed on Aberystwyth streets on Monday afternoons before the black bag collection on Tuesdays in the following streets; Portland Street, Portland Road, Queen Street, Corporation Street, Eastgate Street, New Street and Cambrian Place.

Black bags should be put in the sacks by 8am on Tuesday mornings for collection. The intention is that the sacks contain the waste until it is collected. The sacks will be retrieved after the waste has been collected to avoid clutter and obstruction on the streets.

Councillor Dafydd Edwards is the Cabinet member responsible for Highways and Environmental Services together with Housing. He said: “We see this trial as a practical and relatively cost effective way of responding to long standing issues relating to domestic waste presentation in Aberystwyth town centre. The sacks will also provide a visible reminder to residents in the town centre on what days to present their black bags.

“The trial forms part of the Caru Aber campaign, and the wider Caru Ceredigion campaign, where the council looks to work with local communities to address issues which are of concern or are important to them.

“This innovative approach is another example of positive proactive action the council is taking. We hope that the residents of the town centre will play their part by making good use of the sacks as this will be the critical factor in measuring the success of the scheme.”

Clean recycling and food waste should continue to be presented on a weekly basis in the containers that the council already provides through clear bags and food caddies.

Ensuring that the right waste is presented in the right way and on the right day will help to make sure that the town’s streets are kept clean and that the waste is contained, managed and treated in the most cost effective and environmentally friendly way as possible.

The sacks were first used in readiness for waste collections on Tuesday 6 August 2019. The initial feedback is positive as they have worked to contain the waste on the streets, which were noticeably cleaner.

This latest initiative is developing on feedback and experience from two other trials undertaken. The success of the trial will be monitored on an ongoing basis and reviewed to reflect the experience which will include looking at ways of engaging all residents.

For more information about the new scheme, please contact the Customer Services Contact Centre on 01545 570 881 or by e-mail on clic@ceredigion.gov.uk.

Continue Reading

Popular This Week