Strategic Goal: Goal 2: Reduce Human Disease

Lung progenitors and disease

What is the role of lung stem/progenitor cells in disease?

Which diseases involve stem cell defects?

Submitted by (@nhlbiforumadministrator1)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Name of idea submitter and other team members who worked on this idea : NHLBI Staff

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Strategic Goal: Goal 1: Promote Human Health

Mechanisms of Vascular Stiffness

Increased vascular stiffness has been identified as an important cardiovascular event that accompanies aging and cardiovascular disease. Although multiple vascular changes have been identified and suggested to cause increased vascular stiffness, our understanding of the underlying mechanisms needs to be refined in order to develop useful therapeutic strategies to prevent or reverse these changes. An example of critical ...more »

Submitted by (@meiningerg)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Details on the impact of addressing this CQ or CC :

Ultimately, addressing this CQ would impact treatment of CV disease, reduce incidence of significant and life threatening CV events and improve quality of life. This area of investigation is relevant to therapeutics and potentially lifestyle changes that will improve CV health and slow CV age related changes linked to disease.

Feasibility and challenges of addressing this CQ or CC :

Current advances in our technologies make it very feasible to address new questions to improve our knowledge of the mechanisms underlying vascular stiffness. Challenges will include developing multi-scale and cross disciplinary strategies that will, by design, facilitate an integrated understanding of the process leading to altered vascular stiffness.

Name of idea submitter and other team members who worked on this idea : Gerald A. Meininger

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Strategic Goal: Goal 3: Advance Translational Research

Increasing Regenerative Medical Strategies in Pulmonary Arterial Hypertension

Pulmonary arterial hypertension (PAH) is a complex, progressive condition characterized by high blood pressure in the lungs and restriction of flow through the pulmonary arterial system. Current PAH therapies mainly act of the vasoconstrictive component of the disease; however there is a widely accepted view that another contributor to the disease is an abnormal overgrowth of cells that line the pulmonary arteries, which ...more »

Submitted by (@michaelg)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Details on the impact of addressing this CQ or CC :

In the past twenty years, 12 PAH targeted-therapies have been approved by the FDA. This increase in disease state awareness and in the treatment armamentarium have contributed to an increase in average survival from 2.8 years to an estimated 8-10 years. However, current treatments primarily address the vasoconstrictive component of the disease and do not address the now accepted theory of post-apoptotic overgrowth of hyperproliferative cells of the pulmonary vessels. A number of circulating stem and progenitor cells, derived from the bone marrow, have been identified that could have roles in repair of the pulmonary vascular system when interacting with the quickly, abnormally growing cells in the lung vessels. Work in this area has been named as a future research opportunity in the NHLBI-ORDR Strategic Plan for Lung Vascular Research (Erzurum S, et al. 2010).

Feasibility and challenges of addressing this CQ or CC :

Basic and translational research support is needed—including high-throughput approaches such as phage display and large-scale proteomic analysis—to better understand the relationship between circulating bone marrow-derived cells, lung-resident stem and progenitor cells, and endothelial cells of the pulmonary arterial system.

Name of idea submitter and other team members who worked on this idea : Pulmonary Hyeprtension Association, Michael Gray, Katie Kroner

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Strategic Goal: Goal 3: Advance Translational Research

To find specific medical therapies to treat the wide array of human vascular malformations and vascular tumors.

Vascular malformations and vascular tumors, together referred to as vascular anomalies, comprise a complex and wide array of diseases in which there is a fundamental disruption in blood and lymphatic vasculature. The lesions disrupt organ function, destroy tissue, cause bleeding, increase infections and can threaten life. At present, there are some medical therapies but none are specifically targeted to an underlying ...more »

Submitted by (@joyce.bischoff)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Critical Challenge (CC)

Details on the impact of addressing this CQ or CC :

Deciphering the cellular and molecular basis of human vascular anomalies will have a critical impact for patients with these lesions and it will also have a broad, far-reaching impact on cardiovascular research because the mechanisms and insights learned from these specific vascular anomalies will teach us the fundamental rules that are needed, and must be followed, to build and maintain a stable functional vasculature in humans. This will have an impact on a variety of areas of research including regenerative medicine.

Feasibility and challenges of addressing this CQ or CC :

With the enormous advances in next generations sequencing technologies, the time is ripe for a concerted push to find the gene mutations that cause human vascular malformations and vascular tumors, both the most common and the rare. Cellular models for human endothelial cells are vastly improved and far superior to murine endothelial models, making research on patient-derived cells highly feasible.

The challenges will be to develop animal models of the individual human vascular anomalies that reflect as closely as possible the critical and specific features of the vascular malformation or vascular tumor. Such animal models, as well as relevant cellular in vitro models, would then be ideal for screen drug libraries for ability to reverse or slow the formation of the malformation or tumor. Such drugs might then be candidates to test in pilot clinical trials.

Name of idea submitter and other team members who worked on this idea : Joyce Bischoff

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Strategic Goal: Goal 2: Reduce Human Disease

Stem Cell Biology

There is a need to develop an artificial and functional hematopoietic stem cell (HSC) niche that allows for the expansion of repopulating HSCs.

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Critical Challenge (CC)

Details on the impact of addressing this CQ or CC :

Methods to expand hematopoietic stem cells have continued to be examined extensively because stem cell numbers in the graft are important for clinical outcomes following transplantation. These numbers are particularly relevant in umbilical cord blood (UCB) transplantation, where low numbers of stem cells are directly related to delayed hematopoietic and immune reconstitution. Improved HSC expansion strategies may significantly impact transplantation outcome, enabling broader applications beyond UCB transplantation. Furthermore, these strategies are also needed to realize the full therapeutic potential of genome editing technologies to correct hematopoietic stem cells derived from patients with hematologic disorders. Since efforts to expand HSCs in cytokine-supported liquid cultures have been largely unsuccessful, efficient expansion will require an appropriate context that is provided by the hematopoietic stem cell niche. Future studies must also evaluate how niche signals regulate stem cell function to optimize cell expansion, and proper humanized mouse models must be developed to help predict stem cell function and regulation by the niche.

Name of idea submitter and other team members who worked on this idea : Alice Kuaban on behalf of the American Society of Hematology (ASH)

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Strategic Goal: Goal 2: Reduce Human Disease

Engineered ECM for heart repair

Utilizing advances in nano, bio, tissue and related engineering technologies to construct cardiac ECM for heart repair.

Submitted by (@nhlbiforumadministrator1)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Critical Challenge (CC)

Details on the impact of addressing this CQ or CC :

Will advance cell and gene based therapeutics for cardiac repair. Despite promise, efficacy of cell based therapies remains largely unproven and this may in part be due to poor understanding of cell-ECM interactions. Research efforts in engineering cardiac ECM have the potential to greatly advance such therapeutic approaches.

Feasibility and challenges of addressing this CQ or CC :

This research field is ripe for experimentation and testing.

A major thrust of recent efforts in repairing cardiac injury has focused on cell therapies. However, since the ECM provides the necessary scaffold for the cells it is important to consider the cell-ECM interactions when utilizing these approaches.

 

Will require multi-disciplinary expertise.

Name of idea submitter and other team members who worked on this idea : NHLBI Staff

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Strategic Goal: Goal 2: Reduce Human Disease

Mitigating risks due to the RBC storage lesion and vulnerable patients

What are the underlying dependencies (genomic, metabolic, disease) in individual donors that either accelerate or delay the changes to red blood cells during refrigerated storage? What methods of preparation might protect patients from the risks posed by the accelerated degradation of RBCs provided by "poor storers"? What characteristics of individual patients make them particularly vulnerable to transfusion of red ...more »

Submitted by (@andrew.dunham)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Details on the impact of addressing this CQ or CC :

The changes in red blood cells during refrigerated storage have been well documented and associated with negative clinical sequelae in the peer reviewed literature. While the impact of this so-called storage lesion does not impact every patient during every transfusion it is reasonable to expect that when a unit of blood is transfused to a particularly vulnerable patient from a donor that has red blood cells pre-disposed to degradation, stored in a manner that has allowed significant change to occur, the risk of a negative clinical sequelae is increased. In this case it will be important to understand what underlies the likelihood of a donors blood to store poorly, the changes that occur during storage that could impact vulnerable patients and design approaches to mitigate the degradation that could result.

Feasibility and challenges of addressing this CQ or CC :

We believe mitigating the impact of the storage lesion is feasible by reducing and controlling the oxygen concentration in the RBC unit prior to refrigerated storage. We are continuing our development of a device to do this and to generate the data demonstrating the effect of deoxygenation and anaerobic storage.

Name of idea submitter and other team members who worked on this idea : Andrew Dunham

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Strategic Goal: Goal 3: Advance Translational Research

Genomics in transfusion medicine

How can RBC genomics be utilized to improve outcomes with transfusion?

Submitted by (@barbarak)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Critical Challenge (CC)

Details on the impact of addressing this CQ or CC :

Prevention of alloimmunization with transfusion

Improved understanding of RBC epitope diversity

Feasibility and challenges of addressing this CQ or CC :

Utilize advances in genomics medicine to better understand impact of transfusion and to improve outcomes.

Limited donor pool, particularly in minority populations, presents challenges

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Strategic Goal: Goal 2: Reduce Human Disease

Biology of the intact alveolar wall – the new frontier in lung research

HOW DO WE STUDY THE BIOLOGY OF THE INTACT ALVEOLAR WALL IN THE CONTEXT OF LUNG DISEASE AND REPAIR?

Submitted by (@jb3900)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Details on the impact of addressing this CQ or CC :

SEE UPLOADED FILE

Feasibility and challenges of addressing this CQ or CC :

SEE UPLOADED FILE

Name of idea submitter and other team members who worked on this idea : JAHAR BHATTACHARYA

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Strategic Goal: Goal 2: Reduce Human Disease

Lung cell stimuli responses

What alterations in respiratory epithelia in response to environmental / external insults are irreversible and lead to disease onset or progression?

Submitted by (@nhlbiforumadministrator1)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Name of idea submitter and other team members who worked on this idea : NHLBI Staff

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Strategic Goal: Goal 2: Reduce Human Disease

Human Lung Progenitor Cells, Lung Epithelial Differentiated iPSCs, and Therapeutics

What are the biological properties and key surface markers of human lung progenitor cells and lung epithelial differentiated iPSCs? How can these cell populations be targeted for therapeutic purposes, including regenerative therapy?

Submitted by (@skrenrich)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Compelling Question (CQ)

Name of idea submitter and other team members who worked on this idea : Cystic Fibrosis Foundation

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Strategic Goal: Goal 1: Promote Human Health

Funding of Stem Cell/Lung Regeneration Research

How to "cure" a chronic, incurable disease - A potential giant step in saving the lives of many thousands of Americans, and potentially millions worldwide, who are afflicted with COPD, the third leading cause of death in the U.S. The financial effect of COPD in the United States alone is well over $50 billion per year. It is estimated that some 30 million Americans have COPD, which of course means that at least that ...more »

Submitted by (@jimandmarynelson)

Is this idea a Compelling Question (CQ) or Critical Challenge (CC)? : Critical Challenge (CC)

Details on the impact of addressing this CQ or CC :

COPD is chronic and presently incurable. Although it sickens and disables nearly 30 million Americans, and kills 140,000 of them each year, the only "cure" is a lung transplant. Due to the scarcity of organ donors and the requirements that lungs be removed from the donor in a hospital setting, only about 1,400 lung transplants are performed in the Unites States each year. Unfortunately, transplants are fraught with complications, side effects, and potential rejections, and on the average, add only about 5 years to the life of the recipient. The best potential solution lies with the stem cell and lung regeneration research that is presently occurring at a few centers around the country. Ideally, the re-engineered lungs would be composed of the patient's own stem cells, eliminating a great many of the current transplant issues.

Feasibility and challenges of addressing this CQ or CC :

Research is presently in process on construction or reconstruction of human organs. There has been success in creating some of the simpler organs, such as the esophagus and bladder, and a Medical Center in Galveston has implanted re-engineered lung is a pig. As of my latest conversation with the lead Doctor on the project, results so far are promising.

There is general agreement among the researchers with whom I have communicated that we are between 5 and 20 years away from human trials of re-generated lungs using the patient's own stem cells, but more funding means more research which means more possibilities of the saving of lives.

Name of idea submitter and other team members who worked on this idea : Jim Nelson - COPD Foundation MASAC/CAC/BOARD Committee Member

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