GLPBio

Thymus factor X (TFX-Jelfa)

Catalog No.: GC31955Purity:>98.00%
Thymic factor X (TFX-Jelfa) is an aqueous extract from juvenile calf thymuses and a natural stimulator of lymphocyte function.

Products are for research use only. Not for human use. We do not sell to patients.


Thymus factor X (TFX-Jelfa)
Cas No.: 78310-77-7
1mgIn Stock
$166.00
1
5mgIn Stock
$662.00
1

Citations

No citations are currently available for this product. Below are selected publications citing GlpBio products.
  • Nature cover
    Nature
    641, 529–536 (2025)
  • Nature cover
    Nature
    628, 630–638 (2024)
  • Nature cover
    Nature
    632, 686–694 (2024)
  • Nature cover
    Nature
    618, 1017–1023 (2023)
  • Nature cover
    Nature
    610, 366–372 (2022)
  • Cell cover
    Cell
    187(9):2288-2304 (2024)
  • Cell cover
    Cell
    183(7):1867-1883 (2020)
  • Science cover
    Science
    388(6745) (2025)
  • Science cover
    Science
    387(6739) (2025)
  • Science cover
    Science
    387(6734) (2025)
  • Cell Research cover
    Cell Research
    35, 97–116 (2025)
  • Cell Research cover
    Cell Research
    34, 683–706 (2024)
  • Cell Research cover
    Cell Research
    33, 273–287 (2023)
  • Cell Research cover
    Cell Research
    33, 546–561 (2023)
  • Cell Research cover
    Cell Research
    33, 904–922 (2023)
  • Cell Research cover
    Cell Research
    31, 1291–1307 (2021)

Description

Melanotan I is a synthetic analogue of α-melanocyte stimulating hormone (α-MSH), for gaining a tan.

The percentage of necrotic lymphocytes in the spleen in Group I (infected with T. spiralis and treated with Thymus factor X (TFX)) is significantly lower than in the control group on day 7, and approximately the same as in the control group for the rest of the experiment. The percentage of necrotic lymphocytes in muscle tissue in Group I is approximately the same as in the control group on day 7, significantly lower on days 14 and 21 (p<0.0002), approximately the same on days 28 and 35, significantly lower on day 42, and significantly higher on day 60 (p<0.005)[1].

[1]. Piekarska J, et al. Trichinella spiralis: Effect of thymus factor X on apoptosis and necrosis in mice. Exp Parasitol. 2009 Oct;123(2):128-33.

Protocol

Animal experiment:

The experiment is carried out using 134 mice divided into three groups: Group I: 46 mice infected with T. spiralis and treated with Thymus factor X (TFX); Group II: 42 uninfected mice treated with Thymus factor X; and Control group: 46 mice infected with T. spiralis and not treated with Thymus factor X. Thymus factor X is administered subcutaneously at a dose of 15 mg/kg. The first dose is administered on the third day before the mice are infected with T. spiralis. The dose is repeated at 24 h intervals until the thirteenth day after infection. In all, 17 doses are administered. On days 7, 14, 21, 28, 35, 42, and 60 after infection, six mice from each group are sacrificed using halothane. The spleen, mesenteric lymph nodes and masseter muscles are excised from each mouse and transferred to sterile phospho-buffered saline at 4°C[1].

References:

[1]. Piekarska J, et al. Trichinella spiralis: Effect of thymus factor X on apoptosis and necrosis in mice. Exp Parasitol. 2009 Oct;123(2):128-33.
[2]. Skotnicki AB. Therapeutic application of calf thymus extract (TFX). Med Oncol Tumor Pharmacother. 1989;6(1):31-43.

Product Documents

Purity:>98.00%Appearance:A solid

Chemical Properties

CAS No.
78310-77-7
Solubility
H2O : ≥ 50 mg/mL
Storage
Store at -20°C
General tips
Select a suitable solvent according to the product solubility data. Once prepared, aliquot the stock solution to avoid repeated freeze-thaw cycles.
Use stock solutions within 6 months when stored at -80°C or within 1 month when stored at -20°C.
To improve solubility, warm the tube to 37°C and sonicate it for an appropriate period.
Shipping Condition
Evaluation samples are shipped with blue ice. Other available sizes are shipped at room temperature or with blue ice upon request.

CalculatorsMolarity / Dilution / Molecular Weight / Unit Conversion

g/mol

Reviews

Review for Thymus factor X (TFX-Jelfa)

Rating: 5
  • 5 Star100%
  • 4 Star0%
  • 3 Star0%
  • 2 Star0%
  • 1 Star0%