Navigation Links
'Fertilizing' bone marrow helps answer why some cancers spread to bones

ANN ARBOR, Mich.Researchers found that administering a common chemotherapy drug before bone tumors took root actually fertilized the bone marrow, enabling cancer cells, once introduced, to seed and grow more easily.

The findings provide valuable insight as to why some cancers metastasize to bone, and could eventually result in new metastasis-prevention drugs, said Laurie McCauley, professor in the Department of Periodontics and Oral Medicine at the University of Michigan School of Dentistry and principal investigator on the study.

The really good news is that researchers reversed the tumor-friendly effect of the drug, called cyclophosphamide, by inhibiting another cell-communicating protein in the bone marrow, called CCL2.

"This work is early and still at the pre-clinical level," said McCauley, who also has an appointment in the Department of Pathology at the U-M Health System. "However, the biggest potential impact is in metastasis preventive strategies.

"If we better understood the specific mediators, or conditions, in the bone marrow that support tumors, we could develop more effective therapeutics to prevent local cancers from spreading and hence reduce metastasis to the bone."

The study highlights the potential for the bone marrow to provide the right environment for tumors to metastasize, said Serk In Park, first author and a postdoctoral fellow in McCauley's lab. Many cancers, such as prostate and breast cancer, are fond of spreading, or metastasizing, to bones.

Researchers administered the chemotherapy drug cyclophosphamide experimentally to manipulate the environment inside the bone marrow prior to exposing experimental tumors. Cyclophosphamide therapy is used in certain cancers to slow cell growth, and McCauley's group experimented with its use in a pre-metastatic mode using a prostate cancer model.

While effective at attacking tumor cells, a side effect of cyclophosphamide (and many other chemotherapy drugs) is that it suppresses certain bone marrow cells that help the immune system and increases some harmful cells. Researchers hypothesized correctly that the drug would make the bone marrow more tumor-friendly.


Contact: Laura Bailey
University of Michigan

Related medicine news :

1. New Drug May Help Fight Rare Bone Marrow Disorder
2. Survival rates for pediatric bone marrow transplants top in nation
3. Bone marrow and blood stem cell transplant survival rates equal, when donor is unrelated to patient
4. Biomarker detects graft-versus-host-disease in cancer patients after bone marrow transplant
5. Bone marrow cells migrate to tumors and can slow their growth
6. New half-match bone marrow transplant procedure yields promising outcomes for cancer patients
7. Bone marrow transplantation may increase cancer resistance in patients
8. Stem cell mobilization therapy found to be safe for bone marrow donors
9. Bone marrow transplant survival more than doubles for young high-risk leukemia patients
10. Gene-modified stem cells help protect bone marrow from toxic side effects of chemotherapy
11. Study reveals origins of a cancer affecting the blood and bone marrow
Post Your Comments:
(Date:12/1/2015)... ... December 01, 2015 , ... December 1, 2015 -- ... the company’s growing product line of food safety and seafood fraud prevention tools. ... nerka) – allow InstantLabs to offer fast, reliable species identification for the four ...
(Date:12/1/2015)... ... December 01, 2015 , ... ... Annual 2015 Golden Bridge Business Awards under the New Products and Services category ... web based sample management software that helps labs organize data and ...
(Date:12/1/2015)... Chicago, Illinois (PRWEB) , ... December 01, 2015 ... ... measure and share medical images have been lifted as IMAGE Information Systems launches ... Radiology Society of North America Annual Meeting from November 29 to December 4, ...
(Date:12/1/2015)... ... December 01, 2015 , ... The importance of ... is the focus of numerous abstracts accepted for presentation here, at the 101st ... Nine abstracts highlight the use of Volpara Solutions’ quantitative breast imaging software tools ...
(Date:12/1/2015)... ... December 01, 2015 , ... For the millions ... why Hollister Incorporated has launched the VaPro Plus Pocket™ touch free hydrophilic intermittent ... VaPro touch free catheter portfolio,” said Michael Gresavage, Vice President North America. "We ...
Breaking Medicine News(10 mins):
(Date:12/1/2015)... 2015  Today, AmerisourceBergen, a global ... a first-of-its-kind population health management program focused on ... to be built into existing employer benefit packages, ... for their care and explains how to avoid ... to help patients understand their treatment options and ...
(Date:12/1/2015)... 1, 2015  The migration to value-based care ... care plans that help patients stay healthy and ... be digitally enabled, incorporate care guidelines and be ... They will also allow all stakeholders to collaborate ... is optimal. That is the vision, however, research ...
(Date:12/1/2015)... WASHINGTON and TELTOW, Germany ... SensoMotoric Instruments (SMI) , a leading global manufacturer of ... RightEye LLC has included SMI remote eye trackers ... that help healthcare providers assess concussions, eye sight, and ... SMI RED -oem technology is part of SMI,s mass-market-ready ...
Breaking Medicine Technology: