Forty-eight jobs are to go at Guardian Media Group Regional Newspapers as part of a structural review of the company.

It is to close its entertainment and listing magazine City Life, blaming a downturn in the advertising market.

It follows the first stage of a department by department review which is to take place across the whole business.

The magazine closure will result in 13 journalist and design roles being made redundant, plus one non-editorial role.

Away from City Life, 34 non-editorial posts will be cut from marketing, advertising, facilities management and the group's digital business.

GMG Regional Newspapers chief executive Mark Dodson told HoldtheFrontPage that City Life would publish for the last time on December 7. Staff affected are expected to leave the company by the end of the year.

Mark said: "We are trading in a difficult market.

"The company needs to react to the changed circumstances and regrettably a number of positions will be lost.

"The job losses will come primarily from the Manchester business located at Deansgate and will include the closure of City Life Magazine.

"We have struggled to publish this magazine at a profit for the last 15 years and given the downturn in the market we do not believe we can produce the title profitably in the foreseeable future.

"The company has and will continue to consult fully with the affected staff and their representatives.

"For those employees facing redundancy we will pay enhanced terms, in accordance with our Redundancy Policy, and provide assistance with re-training, financial advice and outplacement support."

National Union of Journalists members at the Manchester Evening News and City Life have launched a campaign to save the magazine.

The chapels say they will ballot for industrial action if any journalists face compulsory redundancy.

The magazine started as a workers' co-operative in 1983 and was bought by Guardian Media in 1989.