Background: Mesenchymal stem cell (MSC) effects can shift immune responses toward anti-inflammatory and tolerogenic phenotypes, potentially helping patients with bronchiolitis obliterans syndrome (BOS).
Methods: We evaluated the effect of infusing allogeneic MSC intravenously in 9 patients with moderate BOS refractory to standard therapy who were not candidates for retransplant, dividing them into 3 dosing groups: Group 1, 1×106 MSC/kg (n=3); Group 2, 2×106 MSC/kg (n=3); and Group 3, 4×106 MSC/kg (n=3). We recorded pulmonary function tests, laboratory variables, and serum biomarkers pre- and post-MSC infusion.
Results: These patients had significant decline in forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) over 1 year pre-MSC infusion (mean ± SD) FVC, 3.11±0.98 L, and FEV1 1.99+0.64 L versus FVC 2.58±1.03 and FEV1 1.61±0.52 just before infusion (P<0.05); representing a mean loss of 530 mL in FVC and 374 mL in FEV1 over 12 months. One year post-MSC infusion, mean FVC and FEV1 increased to 2.66±1.01 L and 1.63±0.55 L, respectively (changes no longer significant compared to before MSC infusion). Patients in Group 1 showed elevation of tolerance-inducing T regulatory cells and increased levels of epidermal growth factor. Tolerance-inducing Th-2 cytokines increased in Groups 1 and 2. These changes were not significantly different in these small sub-groups.
Conclusion: MSC infusion appears to slow down or reverse the progressive decline in lung function in some patients with moderate BOS, possibly by inducing anti-inflammatory effects and promoting cell proliferation and angiogenesis.
I like the quality of the print & overall service. The paper looks quite impressive. Hope this will attract interested readers. All of you have our best wishes for continued success.
Arshad Khan
Your journal has accomplished its intended mission of providing very effective and efficient goals in dealing with submissions, conducting the reviewing process and in publishing accepted manuscripts ...
University of Jacqmar, Inc., USA
John St. Cyr
Your big support from researchers around the world is the best appreciation from your scientific teams. We believe that there should be no barrier in science and you make it real and this motto come ...
Arefhosseinir Rafi
Thank you very much. I think the review process and all of what concerns the administration of the publication concerning our paper has been excellent. The nice and quick answers have been very good I...
Doris Nilsson
Your journal co-operation is very appreciable and motivational. I am really thankful to your journal and team members for the motivation and collaboration to publish my work.
Assistant Professor, UCLAS Uttaranchal University,...
Archna Dhasmana
I am very much pleased with the fast track publication by your reputed journal's editorial team. It is really helpful for researchers like me from developing nations.
I strongly recommend your journ...
Badri Kumar Gupta
We thank to the heighten science family, who speed up the publication of our article and provide every support.
Mehmet Besir
The service from the journal staff has been excellent.
Andy Smith
We appreciate your approach to scholars and will encourage you to collaborate with your organization, which includes interesting and different medical journals.
With the best wishes of success, creat...
Ivano- Frankivsk National Medical University, Ukra...
Nataliya Kitsera
To the editorial team at HSPI and the Journal of Clinical Nephrology:
Thank you so much for your hard work and collaboration in bringing our article to life. Your staff was responsive, flexible, and ...
HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."