Bone Marrow Time Travel
Exploring the potential and preparing of the clinical practice
for bone marrow transplantation for rejuvenation.
Current scientific research points to the potential of injecting own cryopreserved Bone Marrow (BM) and Hematopoietic Stem Cells (HSC) as a factor in increasing health and longevity.
Bone Marrow
The central organ of the immune and hematopoietic system responsible for the production of all immune cells and all blood cells (including red blood cells and platelets). In total, the bone marrow produces about 92% of the body's cells.
At the same time, the synthesis of all these cells provides one type of stem cell called hematopoietic (HSC). The abilities of HSCs are very wide, they can not only produce lymphoid and myeloid cells, but also provide themselves with everything necessary for organizing hematopoiesis niches. They also know how to migrate, so when transplanting bone marrow and HSC, it is enough to inject into a vein, and the cells themselves will find their way to the bone marrow and organize hematopoiesis there.


The bone marrow maintains the state of the whole organism, but with age, the destructive processes caused by aging begin in it. The number and activity of HSCs decrease, and only individual HSC clones remain, which perform their functions poorly and are prone to cancerous degeneration. It is believed that the main reason for the depletion of the HSC pool is mutagenesis caused by the acute signals forcing cells to divide and physiological stress. HSC clones that have accumulated mutations in the genes that control the control of DNA stability begin to dominate, leading to clonal hematopoiesis, a condition observed in 20% of older people over 80 years of age.

Another aging derived deregulative factor for stem cells is the extracellular matrix structure disruption. It becomes rigid due to collagen damage and stem cells cannot form niches in it correctly.
The simplest approach that could become a tool for bone marrow rejuvenation would be autologous heterochronous transplantation. When a small part of the bone marrow would be taken from a person at a young age (up to 50 years) and stored under cryogenic conditions, not subject to stress and mutagenesis. At the same time, at the age of more than 65 years, it would be possible to return cryopreserved HSCs to the body to restore hematopoietic function.

At the same time, the introduction of such an approach requires additional studies on model animals to clarify all the unclear aspects of this therapy, in particular, the study of the necessary and sufficient amount of bone marrow for transplantation, the search for approaches to prepare the extracellular matrix for niche formation, and the study of the fundamental causes of mutagenesis as a factor in the depletion of the HSC pool and bone marrow aging.

Project global tasks

  • The study of substituted hematopoiesis in old animals
    After transplantation of bone marrow cells and HSC in young animals (estimation of the proportion of newly activated hematopoiesis depending on the number of transplanted cells) in the absence of prior chemotherapeutic treatment. Chemotherapy in modern medical practice precedes HSC transplantation even in conditions of autologous transplantation, but is not applicable for aging therapy due to a large number of side effects.
  • Identification of an effective dose of bone marrow cells and HSCs
    Including CD 34+ cells, sufficient to compensate for bone marrow dysfunction caused by aging.

  • The study of changes in the lifespan of mice
    With heterochronous autologous HSC transplantation. That is, when using the same mouse as a donor and recipient after a period of time, instead of a pair of “young and old mice”.
  • Testing the theory of increasing the efficiency of HSC
    Transplantation and increasing the life expectancy of the recipient with preliminary rejuvenation of stem cell niches with deglycating agents.
  • Testing the theory of the possibility of blocking mutagenesis pathways in HSCs
    By influencing molecular and physiological pathways that block organismal stress.

Current research

We can discuss options for experiments that seem to the OL community closer to solving the global task of the project.

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