Could Africa provide clue to cancer metastasis? | CNN

CNN values your feedback

1. How relevant is this ad to you?
2. Did you encounter any technical issues?
Thank You!
Your effort and contribution in providing this feedback is much appreciated.
Close
Ad Feedback
World
Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom
More
Africa Americas Asia Australia China Europe India Middle East United Kingdom
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
Edition
US
International
Arabic
Español
Edition
  • US
  • International
  • Arabic
  • Español

Africa
Americas
Asia
Australia
China
Europe
India
Middle East
United Kingdom

Follow CNN
Download the CNN App

  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Elections 2026
    • Trump
    • Facts First
    • CNN Polls
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
    • Markets Now
    • Nightcap
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • World Cup 2026
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Fast
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

Download the CNN App
african-voices-logo-2026.png
Ad Feedback

Could Africa provide clue to cancer metastasis?

Published 5:40 AM EST, Tue December 13, 2016
Link Copied!
Geoffrey Siwo, a biologist at IBM Research Africa, says that when people think about Africa, "they think about infectious diseases like TB or malaria, but the <a href="index.php?page=&url=http%3A%2F%2Fblogs.worldbank.org%2Fafricacan%2Fis-africa-aging" target="_blank" target="_blank">elderly population in Africa is growing</a> and with that comes increased risk of cancer and other non-communicable diseases." <br />Pictured: a breast cancer patient at the Khartoum Breast Care Centre in Sudan, October 2015.
Geoffrey Siwo, a biologist at IBM Research Africa, says that when people think about Africa, "they think about infectious diseases like TB or malaria, but the elderly population in Africa is growing and with that comes increased risk of cancer and other non-communicable diseases."
Pictured: a breast cancer patient at the Khartoum Breast Care Centre in Sudan, October 2015.
ASHRAF SHAZLY/AFP/Getty Images
Siwo and his team in South Africa were interested in data driven genomic healthcare. "We found that breast cancer patients expressing low levels of [the Duffy Antigen Receptor (DARC)] gene, a pattern more frequent in Africans, have lower survival rates compared to those expressing high levels of this gene, a pattern frequent in Caucasians," he says.<br />Pictured: a screen grab from the team's research data mapping cancer metastasis.
Siwo and his team in South Africa were interested in data driven genomic healthcare. "We found that breast cancer patients expressing low levels of [the Duffy Antigen Receptor (DARC)] gene, a pattern more frequent in Africans, have lower survival rates compared to those expressing high levels of this gene, a pattern frequent in Caucasians," he says.
Pictured: a screen grab from the team's research data mapping cancer metastasis.
Christopher P. Sciacca/IBM Research
"The knowledge that low expression of DARC might influence breast cancer outcomes, especially in some breast cancer patients means that in future it could potentially be used for personalizing therapy or precision medicine," says Siwo. <br />Pictured: a screen grab from the findings presented to the American Society for Human Genetics symposium.
"The knowledge that low expression of DARC might influence breast cancer outcomes, especially in some breast cancer patients means that in future it could potentially be used for personalizing therapy or precision medicine," says Siwo.
Pictured: a screen grab from the findings presented to the American Society for Human Genetics symposium.
Christopher P. Sciacca/IBM Research
Reliable and up-to-date information on new occurrences of cancer within Africa is notoriously difficult to collect. The team wants to work towards faster data collection within South Africa and more widely across the African continent. "By tracking data digitally and pooling efforts across Africa, we can attempt to improve the accuracy of incidence figures," explains Siwo (pictured).
Reliable and up-to-date information on new occurrences of cancer within Africa is notoriously difficult to collect. The team wants to work towards faster data collection within South Africa and more widely across the African continent. "By tracking data digitally and pooling efforts across Africa, we can attempt to improve the accuracy of incidence figures," explains Siwo (pictured).
Christopher P. Sciacca/IBM Research
Greater access to technology means "we are looking at solving problems in Africa in a way we never thought possible before," Siwo says. "We are not only looking at how technology will enable us now but we are starting to think about how technology will work in the future." <br />Pictured: the team of researchers in Johannesburg, South Africa.
Greater access to technology means "we are looking at solving problems in Africa in a way we never thought possible before," Siwo says. "We are not only looking at how technology will enable us now but we are starting to think about how technology will work in the future."
Pictured: the team of researchers in Johannesburg, South Africa.
Courtesy Ryan James
Siwo believes cancer and other non-communicable diseases will start to impact Africans more so than elsewhere, due to how unprepared the region is to handle new cases. "We are attempting to find long term solutions," he says. <br />Pictured: researchers at work in South Africa.
Siwo believes cancer and other non-communicable diseases will start to impact Africans more so than elsewhere, due to how unprepared the region is to handle new cases. "We are attempting to find long term solutions," he says.
Pictured: researchers at work in South Africa.
Christopher P. Sciacca/IBM Research

My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account

Live TV Listen Watch
  • World
    • Africa
    • Americas
    • Asia
    • Australia
    • China
    • Europe
    • India
    • Middle East
    • United Kingdom
  • US Politics
    • Trump
    • Facts First
    • CNN Polls
    • Elections 2026
    • Redistricting Tracker
    • Epstein Files
  • Business
    • Tech
    • Media
    • Calculators
    • Videos
  • Markets
    • Pre-markets
    • After-Hours
    • Fear & Greed
    • Investing
    • Markets Now
    • Nightcap
  • Health
    • Life, But Better
    • Fitness
    • Food
    • Sleep
    • Mindfulness
    • Relationships
  • Entertainment
    • Movies
    • Television
    • Celebrity
  • Tech
    • Innovate
  • Style
    • Arts
    • Design
    • Fashion
    • Architecture
    • Luxury
    • Beauty
    • Video
  • Travel
    • Destinations
    • Food & Drink
    • Stay
    • News
    • Videos
  • Sports
    • Football
    • Tennis
    • Golf
    • Motorsport
    • US Sports
    • Olympics
  • Science
    • Space
    • Life
    • Unearthed
  • Climate
    • Solutions
    • Weather
  • Weather
    • Video
    • Climate
  • World Cup 2026
  • Ukraine-Russia War
  • Israel-Hamas War
  • Features
    • As Equals
    • Call to Earth
    • Freedom Project
    • Impact Your World
    • Inside Africa
    • CNN Heroes
  • Watch
    • Live TV
    • Featured
    • CNN Headlines
    • Shows A-Z
    • CNN 10
    • CNN TV Schedule
  • Listen
    • All There Is with Anderson Cooper
    • Chasing Life with Dr. Sanjay Gupta
    • The Assignment with Audie Cornish
    • Terms of Service with Clare Duffy
    • CNN 5 Things
    • All CNN Podcasts
  • Games
    • Daily Crossword
    • Jumble Crossword
    • Photo Shuffle
    • Sudoblock
    • Sudoku
    • 5 Things Quiz
  • About CNN
    • Photos
    • Investigations
    • CNN Profiles
    • CNN Leadership
    • CNN Newsletters
    • Work for CNN

World
Watch Listen Live TV
My Account
  • Settings
  • Newsletters
  • Topics you follow
  • Sign out
Your CNN account Sign in to your CNN account
Follow CNN

Download the CNN app
Download the CNN app

Terms of Use Privacy Policy Ad Choices Accessibility & CC About Newsletters Transcripts

© 2026 Cable News Network. A Warner Bros. Discovery Company. All Rights Reserved.
CNN Sans ™ & © 2016 Cable News Network.

Download the CNN app

Scan the QR code to download the CNN app on Google Play.

Scan the QR code to download the CNN app from Google Play.

Download the CNN app

Scan the QR code to download the CNN app from the Apple Store.

Scan the QR code to download the CNN app from the Apple Store.