Researchers found that a protein called TCF21 is low in esophageal cancer and that boosting it in lab cells slows cancer growth. When TCF21 is increased, it also raises levels of another protein, Kiss‑1, which helps reverse changes that let cancer spread. This suggests TCF21 and Kiss‑1 act as tumor‑suppressors in this cancer type.
In male Djungarian hamsters that are adapted to short days, giving kisspeptin-10 or RFRP3 directly into the brain makes them gain weight, but the two peptides work differently. Kisspeptin's effect needs the testes (testosterone), while RFRP3 raises insulin and leptin without changing brain appetite genes. Neither peptide changes weight in female hamsters.
In a study on female rats, a DNA vaccine that makes the body produce antibodies against the longer form of the kisspeptin protein (KISS1‑54) reduced hormone levels and lowered the number of pups, while a vaccine targeting the shorter form (KISS1‑10) did not show these effects.
Liu. Guanghua G; Zhao. Xin X; Zhou. Jingmin J; Cheng. Xiangming X; Ye. Zixing Z; Ji. Zhigang Z
Scientists discovered that a non‑coding RNA called TP73‑AS1 is higher in kidney cancer tissue and helps the cancer grow by turning off the KISS1 gene, which normally makes a protein (kisspeptin) that can suppress tumors. When they lowered TP73‑AS1 in lab cells, KISS1 levels went up, cancer cell growth slowed, and more cells died. This work is about cancer biology, not a direct health‑boosting tip for everyday people.
Branavan. Umayal U; Muneeswaran. Kajan K; Wijesundera. W S S WSS; Senanayake. Anoma A; Chandrasekhar...
Researchers looked at genetic variations in the kisspeptin system (Kiss1 and its receptor GPR54) in Sri Lankan women with polycystic ovary syndrome (PCOS). They found that women with PCOS have higher blood levels of kisspeptin and testosterone, but the specific gene variants they studied don’t seem to explain why. One new genetic change might slightly affect kisspeptin levels, but overall the genetics don’t appear to drive PCOS in this group.
Wahab. Fazal F; Atika. Bibi B; Shahab. Muhammad M; Behr. Rüdiger R
Kisspeptin is a hormone that talks to a specific receptor and helps control reproductive processes like egg and sperm development, may play a role in kidney health, and can slow the spread of certain urogenital cancers, but the study doesn’t give any direct ways to use it for health or performance improvements.
In pregnancies with gestational diabetes, the cells that line the placenta (trophoblasts) release different amounts of signaling proteins, including the kisspeptin-related gene KISS1, which changes how nearby blood vessel cells grow and move. These changes could affect the placenta's blood vessel network but don't give clear guidance for everyday health or performance hacks.
Meczekalski. Blazej B; Katulski. Krzysztof K; Podfigurna-Stopa. Agnieszka A; Czyzyk. Adam A; Genazza...
The study found that in healthy young women, the hormone kisspeptin is released in natural bursts that line up exactly with bursts of luteinizing hormone (LH), a key player in reproduction. This shows kisspeptin’s direct role in controlling LH timing, but the research didn’t test any treatments or give dosing advice.
Timologou. Anna A; Zafrakas. Menelaos M; Grimbizis. Grigorios G; Miliaras. Dimosthenis D; Kotronis....
The study looked at two proteins, KAI1 and KISS1, in the lining of the uterus of women with and without endometriosis. It found that KAI1 levels were lower in the normal uterine tissue of women with endometriosis but higher in the abnormal tissue outside the uterus, while KISS1 was higher in the abnormal glandular tissue. These differences suggest the proteins might help detect endometriosis early, but the research doesn’t give any direct advice on using kisspeptin-10 for health or performance improvements.
Matjila. Mushi M; Millar. Robert R; van der Spuy. Zephne Z; Katz. Arieh A
In pregnancies with preeclampsia, the placenta makes a lot of the peptide kisspeptin, but the mother's blood has less of it. The study suggests this drop in blood kisspeptin could signal problems with the placenta.
Golzar. Fatemeh F; Javanmard. Shaghayegh Haghjooy SH
A lab study looked at how different amounts of kisspeptin‑10 affect the movement and growth of blood‑vessel cells. They found that a modest dose (around 100 nM) made the cells move and multiply more, while a high dose (500 nM) actually slowed these processes down.
Jamil. Zehra Z; Fatima. Syeda Sadia SS; Arif. Sara S; Alam. Faiza F; Rehman. Rehana R
The study found that women who got pregnant after ICSI had higher blood levels of the peptide kisspeptin on the day they were given HCG, and those levels could predict pregnancy success, but it doesn’t tell you how to change kisspeptin or use it to boost health outside IVF.
Scientists created a new liver cancer cell line that spreads to the lungs a lot. This aggressive line grows faster, invades more, and shows higher levels of a protein called AGR2 and lower levels of the KiSS-1 gene, which makes the peptide kisspeptin. In real patient tumors, low kisspeptin also showed up in more advanced cancers, hinting it might help stop cancer spread, but the study doesn’t give any direct health tips for everyday use.
Yilmaz. M B MB; Oksuz. H H; Ilgaz. N S NS; Ocal. I I; Tazehkand. M Norizadeh MN
In lab studies of breast cancer cells, the hormone kisspeptin caused an increase in the gene that makes the estrogen‑producing enzyme aromatase, but only in one type of cancer cell (MCF7). This effect was blocked when the kisspeptin receptor was inhibited, and it did not happen in another breast cancer cell line (SKBR3). The findings suggest kisspeptin could boost estrogen production in certain cancer cells, which might make tumors more aggressive.
Rizzo. Annalisa A; Ceci. Edmondo E; Guaricci. Antonio Ciro AC; Sciorsci. Raffaele Luigi RL
Researchers measured a hormone called kisspeptin‑10 (Kp10) in dairy cows after they gave birth and found it spikes around two weeks later before dropping again. The rise likely helps kick‑start the brain's reproductive signals, but the study only describes what happens in cows, not how to use it in people.
Zhai. Junyu J; Liu. Jiansheng J; Zhao. Shigang S; Zhao. Han H; Chen. Zi-Jiang ZJ; Du. Yanzhi Y; Li....
The study shows that a short peptide called kisspeptin‑10 can lower the leakiness of blood vessels and the amount of VEGF (a protein that makes vessels leaky) in a rat model of ovarian hyperstimulation syndrome (OHSS), a side effect of fertility drugs. It works by boosting the kisspeptin receptor (KISS1R) and blocking the estrogen‑driven rise in VEGF.
The study found that higher levels of the protein KISS1 and its receptor in colorectal liver metastasis tumors are linked to better survival, while low KISS1 is tied to more aggressive disease and higher MMP‑9 enzyme levels. This suggests KISS1 might be a useful marker for cancer prognosis, but the research does not provide any direct ways for everyday health optimization.
A study of 142 pregnant women found that the level of a protein called IGFBP‑1 in the mother's blood during the first trimester can hint at whether the baby will be unusually small or large at birth, while the hormone kisspeptin‑1 (KISS‑1) showed no useful link to baby size or early fetal growth.
Albers-Wolthers. C H J CH; de Gier. J J; Rutten. V P M G VP; van Kooten. P J S PJ; Leegwater. P A J...
Giving the kisspeptin‑10 peptide to female dogs makes their LH hormone spike, but the size of the spike depends on where they are in their heat cycle, and a tested blocker (p271) didn’t stop the spike. This shows the drug works in dogs but the blocker doesn’t, and the findings don’t translate into a ready‑to‑use protocol for people.
Researchers found two genetic variants in the KiSS1 gene that are linked to breast cancer risk in a Mexican population, but this doesn’t tell us how to use kisspeptin‑10 for health or performance.