Crucial Role of Donor-Derived Stromal Cells in Successful Treatment for Intractable Autoimmune Diseases in MRL/lpr Mice by BMT Via Portal Vein

Stem Cells ◽  
2001 ◽  
Vol 19 (3) ◽  
pp. 226-235 ◽  
Author(s):  
Taketoshi Kushida ◽  
Muneo Inaba ◽  
Hiroko Hisha ◽  
Naoya Ichioka ◽  
Takashi Esumi ◽  
...  
2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Emi Murayama ◽  
Milka Sarris ◽  
Michael Redd ◽  
Dorothée Le Guyader ◽  
Catherine Vivier ◽  
...  

Blood ◽  
2009 ◽  
Vol 114 (3) ◽  
pp. 619-629 ◽  
Author(s):  
Abdel Kareem Azab ◽  
Feda Azab ◽  
Simona Blotta ◽  
Costas M. Pitsillides ◽  
Brian Thompson ◽  
...  

Abstract The interaction of multiple myeloma (MM) cells with the bone marrow (BM) milieu plays a crucial role in MM pathogenesis. Stromal cell–derived factor-1 (SDF1) regulates homing of MM cells to the BM. In this study, we examined the role of RhoA and Rac1 GTPases in SDF1-induced adhesion and chemotaxis of MM. We found that both RhoA and Rac1 play key roles in SDF1-induced adhesion of MM cells to BM stromal cells, whereas RhoA was involved in chemotaxis and motility. Furthermore, both ROCK and Rac1 inhibitors reduced SDF1-induced polymerization of actin and activation of LIMK, SRC, FAK, and cofilin. Moreover, RhoA and Rac1 reduced homing of MM cells to BM niches. In conclusion, we characterized the role of RhoA and Rac1 GTPases in SDF1-induced adhesion, chemotaxis, and homing of MM cells to the BM, providing the framework for targeting RhoA and Rac1 GTPases as novel MM therapy.


PLoS ONE ◽  
2015 ◽  
Vol 10 (1) ◽  
pp. e0116772 ◽  
Author(s):  
Nina-Emily Hengartner ◽  
Jörg Fiedler ◽  
Hubert Schrezenmeier ◽  
Markus Huber-Lang ◽  
Rolf E. Brenner

2020 ◽  
Vol 21 (22) ◽  
pp. 8584
Author(s):  
Christine Vignon ◽  
Christelle Debeissat ◽  
Jérôme Bourgeais ◽  
Nathalie Gallay ◽  
Farah Kouzi ◽  
...  

The bone marrow (BM) microenvironment plays a crucial role in the development and progression of leukemia (AML). Intracellular reactive oxygen species (ROS) are involved in the regulation of the biology of leukemia-initiating cells, where the antioxidant enzyme GPx-3 could be involved as a determinant of cellular self-renewal. Little is known however about the role of the microenvironment in the control of the oxidative metabolism of AML cells. In the present study, a coculture model of BM mesenchymal stromal cells (MSCs) and AML cells (KG1a cell-line and primary BM blasts) was used to explore this metabolic pathway. MSC-contact, rather than culture with MSC-conditioned medium, decreases ROS levels and inhibits the Nrf-2 pathway through overexpression of GPx3 in AML cells. The decrease of ROS levels also inactivates p38MAPK and reduces the proliferation of AML cells. Conversely, contact with AML cells modifies MSCs in that they display an increased oxidative stress and Nrf-2 activation, together with a concomitant lowered expression of GPx-3. Altogether, these experiments suggest that a reciprocal control of oxidative metabolism is initiated by direct cell–cell contact between MSCs and AML cells. GPx-3 expression appears to play a crucial role in this cross-talk and could be involved in the regulation of leukemogenesis.


2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-47-Pr11-52
Author(s):  
V. M. Pan ◽  
V. S. Flis ◽  
V. A. Komashko ◽  
O. G. Plys ◽  
C. G. Tretiatchenko ◽  
...  

2020 ◽  
Vol 04 (03) ◽  
pp. 291-302
Author(s):  
Mariam F. Eskander ◽  
Christopher T. Aquina ◽  
Aslam Ejaz ◽  
Timothy M. Pawlik

AbstractAdvances in the field of surgical oncology have turned metastatic colorectal cancer of the liver from a lethal disease to a chronic disease and have ushered in a new era of multimodal therapy for this challenging illness. A better understanding of tumor behavior and more effective systemic therapy have led to the increased use of neoadjuvant therapy. Surgical resection remains the gold standard for treatment but without the size, distribution, and margin restrictions of the past. Lesions are considered resectable if they can safely be removed with tumor-free margins and a sufficient liver remnant. Minimally invasive liver resections are a safe alternative to open surgery and may offer some advantages. Techniques such as portal vein embolization, association of liver partition with portal vein ligation for staged hepatectomy, and radioembolization can be used to grow the liver remnant and allow for resection. If resection is not possible, nonresectional ablation therapy, including radiofrequency and microwave ablation, can be performed alone or in conjunction with resection. This article presents the most up-to-date literature on resection and ablation, with a discussion of current controversies and future directions.


Jurnal Akta ◽  
2017 ◽  
Vol 4 (3) ◽  
pp. 463
Author(s):  
Muslim Ansori ◽  
Akhmad Khisni

With the enactment of the Education System Act no 20 of 2003 (better known as the Sisdiknas Act), the State has determined that educational institutions should have a legal umbrella in the form of a legal entity, or better known as the Legal Entity Education. As a non-profit organization, the Foundation is the right legal entity that becomes a place for educational institutions, especially private schools. Therefore, of course, Notary has a very crucial role in making notary deed in the form of establishment and deed of change, such as example how in making the right basic budget and not multi interpresatasi for stake holders in the foundation. Therefore, the role of function and authority of the organ of the foundation must be clearly stated in the articles of association, so as not to cause a dispute in the future.KEYWORDS: Notaries, Foundation, Organ Foundation,


Sign in / Sign up

Export Citation Format

Share Document