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Thymosin-alpha-1

Thymalfasin, Zadaxin, Thymosin α1

A synthetic 28-amino acid peptide that enhances immune function by modulating T-cell activity, used for viral infections and immunodeficiencies.

Quick Stats
Studies 759
Trials 63
Formula C129H215N33O55
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Utility 2
pubmed May 19, 2010

Production of thymosin alpha1 via non-enzymatic acetylation of the recombinant precursor.

Esipov. Roman S RS; Stepanenko. Vasily N VN; Beyrakhova. Ksenia A KA; Muravjeva. Tatjana I TI; Miros...

Scientists figured out a cheaper, scalable way to make thymosin‑alpha‑1 using bacteria, a fusion protein, a protease cut, and a simple chemical step to add the needed acetyl group. The method gives decent amounts of the peptide and could make it more affordable, but it doesn’t change how you would take it or prove new health benefits.

Utility 2
pubmed May 19, 2011

Expression, purification and characterization of a novel soluble human thymosin alpha1 concatemer exhibited a stronger stimulation on mice lymphocytes proliferation and higher anti-tumor activity.

Li. Weina W; Song. Liqiang L; Wu. Shouzhen S; Xue. Xiaochang X; Zhang. Lu L; He. Liqing L; Han. Wei...

Scientists created a double‑length version of thymosin‑alpha‑1 using bacteria, purified it to high purity, and found it stimulates mouse immune cells and fights tumors better than the regular peptide. The work is still in mice, so it doesn’t give a direct recipe for people to use, but it hints that more potent forms of the peptide could be developed in the future.

Utility 2
pubmed Mar 1, 2010

Large randomized study of thymosin alpha 1, interferon alfa, or both in combination with dacarbazine in patients with metastatic melanoma.

Maio. Michele M; Mackiewicz. Andrzej A; Testori. Alessandro A; Trefzer. Uwe U; Ferraresi. Virginia V...

In a big trial with melanoma patients, adding the immune‑boosting peptide thymosin‑alpha‑1 to standard chemo (dacarbazine) and sometimes interferon led to more tumor shrinkage and a modest bump in survival, but the benefits didn’t reach strict statistical significance and there were no extra side‑effects.

Utility 2
pubmed 2009

Expression of thymosin alpha1 concatemer in transgenic tomato (Solanum lycopersicum) fruits.

Chen. Yuhui Y; Wang. Aoxue A; Zhao. Lingxia L; Shen. Guoan G; Cui. Lijie L; Tang. Kexuan K

Scientists engineered tomatoes to make a protein called thymosin‑alpha‑1, which boosts immune cells. The modified tomatoes produced the protein in their fruit, and lab tests showed it was active and even worked better than the same protein made in bacteria. However, turning this into a usable supplement would need more work, including growing GMO tomatoes and extracting the protein safely.

Utility 2
pubmed Jul 15, 2010

Thymus hormones as prospective anti-inflammatory agents.

Lunin. Sergey M SM; Novoselova. Elena G EG

This review says that hormones from the thymus, like thymosin‑alpha‑1, can calm down inflammation by affecting immune cells and the stress‑hormone system, so they might become future anti‑inflammatory drugs, but the paper doesn’t give specific dosing or ready‑to‑use protocols.

Utility 2
pubmed Jan 10, 2013

The role of Tα1 on the infective patients after hematopoietic stem cell transplantation.

Ding. Jia-Hua JH; Wang. Lin-Lin LL; Chen. Zhi Z; Wang. Jun J; Yu. Zheng-Ping ZP; Zhao. Gang G; Chen....

In a tiny study of eight patients who got stem‑cell transplants, giving the peptide thymosin‑alpha‑1 for two weeks boosted several immune signaling proteins without causing graft‑versus‑host disease, but it didn’t change the numbers of major T‑cell types.

Utility 2
pubmed Jul 23, 2008

Effects of thymic polypeptides on the thymopoiesis of mouse embryonic stem cells.

Peng. Yanwen Y; Chen. Zhenguang Z; Yu. Weihua W; Zhou. Qifeng Q; Xu. Lin L; Mao. Frank Fuxiang FF; H...

The study shows that the peptide thymosin‑alpha‑1 can push mouse embryonic stem cells to become early T‑cells in a dish, while a related peptide (TP5) cannot. This is a basic‑science finding about how the peptide influences immune‑cell development.

Utility 2
pubmed Jun 19, 2012

Separation and isolation of fusion protein using a new native preparative PAGE device.

Jian-Hua. Zhang Xin-Guo Chen ZX; Lu-Yin. Yan Y; Li. Tang T; Min. Wang W; Dai-Shuang. Cheng C

Researchers created a new way to cleanly pull out a thymosin‑alpha‑1 protein that’s been attached to human serum albumin, using a special gel‑based device. The method is fast, simple, and yields a very pure product that works like the synthetic peptide, but it needs lab equipment and expertise, so it’s not a ready‑to‑use trick for most hobbyists.

Utility 2
pubmed Jun 1, 2010

The best treatment for avulsed permanent teeth.

Rosenblatt. Aronita A

The review examined three small trials on how to treat knocked‑out permanent teeth. One found that doing the root‑channel work outside the mouth isn’t worse than inside after a long dry period. Another trial soaked the tooth in thymosin‑alpha‑1 and gave daily gum injections, reporting a big jump in healing (77% vs 14% after four years). The third used gentamicin and hyperbaric oxygen and also reported better healing. All studies had high or moderate bias, so the results are far from conclusive.

Utility 2
pubmed Feb 16, 2011

Thymic peptides for treatment of cancer patients.

Wolf. Elke E; Milazzo. Stefania S; Boehm. Katja K; Zwahlen. Marcel M; Horneber. Markus M

In cancer patients, adding thymus extracts or the synthetic peptide thymosin‑alpha‑1 to chemo or radiotherapy didn’t improve survival or tumor shrinkage, but the extracts did cut the chance of serious infections, and thymosin‑alpha‑1 showed a non‑significant hint of better outcomes. Overall, the evidence is weak and the benefits are limited to infection risk in very sick people.

Utility 2
pubmed Jul 5, 2023

The use of alpha 1 thymosin as an immunomodulator of the response against SARS-Cov2.

Espinar-Buitrago. M S MS; Tarancon-Diez. L L; Vazquez-Alejo. E E; Magro-Lopez. E E; Genebat. M M; Ro...

The study shows that thymosin‑alpha‑1 can change how immune cells react to COVID‑19 pieces in a test‑tube, especially by tweaking dendritic cells and keeping T‑cells functional while lowering some inflammatory signals. The effect was similar in cells from younger and older people, hinting it might help older adults whose immune systems are weaker.

Utility 2
pubmed May 1, 2010

Thymalfasin in the treatment of hepatitis B and C.

Ciancio. A A; Rizzetto. M M

Thymosin‑alpha‑1 (thymalfasin) can boost the immune system and may help the body fight hepatitis B and C when used together with standard antiviral drugs, but big studies show it doesn’t dramatically increase cure rates, only possibly lowers the chance of the virus coming back after treatment.

Utility 2
pubmed 2005

Antitumor activation of peritoneal macrophages by thymosin alpha-1.

Shrivastava. Pratima P; Singh. Sukh Mahendra SM; Singh. Nisha N

The study shows that a protein called thymosin‑alpha‑1 can boost the activity of certain immune cells (macrophages) taken from the belly lining of mice, and when these boosted cells are given back to mice with a type of blood cancer, the mice live longer. This is an early‑stage, animal‑only experiment and doesn’t give a clear recipe for people to use the peptide themselves.

Utility 2
pubmed Jun 13, 2007

Thymosin alpha1 as a chemopreventive agent in lung and breast cancer.

Moody. Terry W TW

In mice and rats, daily injections of thymosin‑alpha‑1 lowered the number of lung tumors, slowed the growth of lung cancer cells in a dish, and helped animals live longer with fewer breast tumors, but these results are only in animals and haven’t been proven in people.

Utility 2
pubmed Jul 7, 2006

Thymosinalpha1 stimulates cell proliferation by activating ERK1/2, JNK, and increasing cytokine secretion in human pancreatic cancer cells.

Li. Min M; Feurino. Louis W LW; Li. Fei F; Wang. Hao H; Zhai. Qihui Q; Fisher. William E WE; Chen. C...

The study found that thymosin‑alpha‑1, a peptide sometimes used for immune support, actually makes pancreatic cancer cells grow faster and releases more inflammation‑related signals, meaning it could potentially worsen cancer rather than help health.

Utility 2
pubmed Nov 1, 2007

Thymosin alpha 1 improves severe acute pancreatitis in rats via regulation of peripheral T cell number and cytokine serum level.

Yao. Weiyan W; Zhu. Qi Q; Yuan. Yaozong Y; Qiao. Minmin M; Zhang. Yongping Y; Zhai. Zukang Z

In a rat study, giving the peptide thymosin‑alpha‑1 after severe pancreas inflammation helped calm the immune response, lowered harmful inflammation markers, and improved survival, but it didn’t change the usual pancreas enzymes. The work was done in sick animals, not healthy people, so it’s not a ready‑to‑use protocol for everyday health hacking.

Utility 2
pubmed Jan 1, 2004

Thymosin-alpha 1 plus interferon-alpha for naive patients with chronic hepatitis C: results of a randomized controlled pilot trial.

Andreone. P P; Gramenzi. A A; Cursaro. C C; Felline. F F; Loggi. E E; D'Errico. A A; Spinosa. M M; L...

A small study found that adding the immune‑boosting peptide thymosin‑alpha‑1 to standard interferon therapy helped more hepatitis C patients clear the virus by the end of treatment, but the benefit disappeared after six months, so it didn’t improve the long‑term cure rate.

Utility 2
pubmed Apr 27, 2006

Thymosin alpha1 suppresses proliferation and induces apoptosis in human leukemia cell lines.

Fan. Ying-zhe YZ; Chang. Hui H; Yu. Ye Y; Liu. Jing J; Wang. Rui R

The study shows that the peptide thymosin‑alpha‑1 can slow down the growth and trigger cell death in lab‑grown leukemia cells, but it was only tested in petri dishes, not in people. It works better on some leukemia types and seems to involve certain cell‑death pathways and nicotinic receptors.

Utility 2
pubmed 2005

Thymosin alpha 1 attenuates lipid peroxidation and improves fructose-induced steatohepatitis in rats.

Armutcu. Ferah F; Coskun. Omer O; Gürel. Ahmet A; Kanter. Mehmet M; Can. Murat M; Ucar. Fatma F...

In rats fed a lot of fructose, which normally causes liver fat buildup and oxidative stress, giving the peptide thymosin‑alpha‑1 for 10 days brought many of those harmful changes back toward normal, lowering liver damage markers and inflammation and protecting liver cells.