Thymosin alpha-1 · research summary

Enhanced Immunomodulatory Effects of Thymosin-Alpha-1 in Combination with Polyanionic Carbosilane Dendrimers against HCMV Infection.

International journal of molecular sciences · 2024. Summary drawn from the study's full text. Each statement is followed by the exact sentence it comes from. This is a research summary, not medical advice.

Study type

In vitro study examining immunological effects of co-administration of Thymosin-alpha-1 and polyanionic carbosilane dendrimers on PBMCs during HCMV infection
“This study examined the in vitro immunological effects of co-administration of Thymosin-alpha-1 (Tα1) and polyanionic carbosilane dendrimers (PCDs) on peripheral blood mononuclear cells (PBMCs) during HCMV infection.”

Subjects

Peripheral blood mononuclear cells (PBMCs) from healthy blood donors
“Peripheral Blood Mononuclear Cells (PBMCs) from buffy coats were obtained from anonymous healthy blood donors donated by the Transfusion Centre of Madrid following national guidelines (n = 28) and collected in ethylenediaminetetraacetic acid (EDTA) using Ficoll (Ficoll-Paque TM PLUS) by density gradient centrifugation on blood collection day and used immediately.”

Sample size

28 healthy blood donors
“Peripheral Blood Mononuclear Cells (PBMCs) from buffy coats were obtained from anonymous healthy blood donors donated by the Transfusion Centre of Madrid following national guidelines (n = 28) and collected in ethylenediaminetetraacetic acid (EDTA) using Ficoll (Ficoll-Paque TM PLUS) by density gradient centrifugation on blood collection day and used immediately.”

Reported findings

Tα1 + PCDs treatments increased dendritic cell activation and maturation markers
“The findings revealed that Tα1 + PCDs treatments increased DC activation and maturation.”
Tα1 + G2-S24P treatment increased co-receptor expression, intracellular IFNγ production in T cells, and Treg functionality while reducing senescence
“Furthermore, increased co-receptor expression, intracellular IFNγ production in T cells and elevated Treg functionality and reduced senescence were evident with Tα1 + G2-S24P treatment.”
Tα1 + G2S16 treatment resulted in reduced co-receptor expression, intracellular cytokine production in T cells, lower Treg functionality, and higher senescence
“Conversely, reduced co-receptor expression, intracellular cytokine production in T cells, lower functionality and higher senescence in Treg were observed with Tα1 + G2S16 treatment.”

Limitations stated by the authors

The specific immunological mechanism of action against HCMV for both dendrimers has not yet been elucidated
“However, the specific immunological mechanism of action against HCMV for both dendrimers has not yet been elucidated.”

Source: PubMed 38396631 · DOI 10.3390/ijms25041952 · all study summaries

Study type

In vitro study examining immunological effects of co-administration of Thymosin-alpha-1 and polyanionic carbosilane dendrimers on PBMCs during HCMV infection

“This study examined the in vitro immunological effects of co-administration of Thymosin-alpha-1 (Tα1) and polyanionic carbosilane dendrimers (PCDs) on peripheral blood mononuclear cells (PBMCs) during HCMV infection.”

Subjects

Peripheral blood mononuclear cells (PBMCs) from healthy blood donors

“Peripheral Blood Mononuclear Cells (PBMCs) from buffy coats were obtained from anonymous healthy blood donors donated by the Transfusion Centre of Madrid following national guidelines (n = 28) and collected in ethylenediaminetetraacetic acid (EDTA) using Ficoll (Ficoll-Paque TM PLUS) by density gradient centrifugation on blood collection day and used immediately.”

Sample size

28 healthy blood donors

“Peripheral Blood Mononuclear Cells (PBMCs) from buffy coats were obtained from anonymous healthy blood donors donated by the Transfusion Centre of Madrid following national guidelines (n = 28) and collected in ethylenediaminetetraacetic acid (EDTA) using Ficoll (Ficoll-Paque TM PLUS) by density gradient centrifugation on blood collection day and used immediately.”

Reported findings

Tα1 + PCDs treatments increased dendritic cell activation and maturation markers

“The findings revealed that Tα1 + PCDs treatments increased DC activation and maturation.”

Tα1 + G2-S24P treatment increased co-receptor expression, intracellular IFNγ production in T cells, and Treg functionality while reducing senescence

“Furthermore, increased co-receptor expression, intracellular IFNγ production in T cells and elevated Treg functionality and reduced senescence were evident with Tα1 + G2-S24P treatment.”

Tα1 + G2S16 treatment resulted in reduced co-receptor expression, intracellular cytokine production in T cells, lower Treg functionality, and higher senescence

“Conversely, reduced co-receptor expression, intracellular cytokine production in T cells, lower functionality and higher senescence in Treg were observed with Tα1 + G2S16 treatment.”