Researchers Develop New Strategy to Target Breast Cancer Metastasis in Bones

Researchers Develop New Strategy to Target Breast Cancer Metastasis in Bones
A new method using small particles loaded with chemotherapy drugs is a viable approach to target breast cancer cells that have spread to the bones, according to a report that appeared in the journal Cancer Research. The strategy, developed by a research team at Washington University School of Medicine (WUSM) in St. Louis, Missouri, combines a nanoparticle-based drug delivery method with a surface molecule called integrin β3. The integrin enables the small particles to get inside the bones and deliver the chemotherapy drug directly to the cancer cells. In the study, titled “Bone-induced expression of integrin β3 enables targeted nanotherapy of breast cancer metastases,” researchers provided preclinical data showing that the new approach kills cancer cells while reducing treatment-related toxicity in healthy bone tissues. “For women with breast cancer that has spread, 70 percent of those patients develop metastasis to the bone,” Katherine N. Weilbaecher, MD, professor of medicine at WUSM and senior author of the study, said in a university news release, written by Julia Evangelou Strait. “Bone metastases destroy the bone, causing fractures and pain. If the tumors reach the spine, it can cause paralysis. There is no cure once breast cancer reaches the bone, so there is a tremendous need to develop new therapies for these patients,” Weilbaecher said.
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  1. Alicia Goldfarb says:

    I have metastatic cancer to the bones.Diagnosed one and a half years ago.Initially diagnosed with non invasive cancer – calcifications 25 years ago. Had a mastectomy but no chemo or radiation. Took tamoxafin for 5 years. Currently on letrozole and ibrance. Would I be eligible for a clinical trial?

    • Alice Melão says:

      Dear Alicia,
      We at Breast Cancer News are not involved in any clinical studies. You can find trials that may be recruiting participants in the website There you narrow your search according to the country you live in or other specificities. I hope this info can be helpful.

  2. Joan Greenberg says:

    I am on systemic treatment, Gemzar, because Ibrance didn’t work. I’d like to know when there will be trials for the treatment of metastatic breast cancer er + of the bone.

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