Medical Peptide API Pnc27 Pnc-27 Peptide Pnc 27

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Clinical Studies of the PNC-27 Peptide
In a paper published by the American Association for Cancer Research in 2010, Drs. Ehsan Sarafraz-Yazdi et al. revealed in depth how the PNC-27 cancer peptide exerted its effects and what its novel mechanism of action meant for the field of cancer research.[5]

The paper's authors reported that the peptide's mechanism of action is due to the formation of oligomeric pores in the plasma membrane of tumor cells. Concurrently, oligomeric pores are not formed in untransformed, or non-tumor, cells. Further, they noted that it has been shown that MDM2 as a targeting molecule leads to PNC-27 selectivity towards cancer cells by its mis-localization to cancer cell plasma membranes.[5]

Researchers concluded that these findings are descriptive of the unique localization of MDM2 variants in the plasma membranes of cancerous cells.[5] Further, they stated that this knowledge may hint at great promise for the PNC-27 peptide as a future anti-cancer drug pending clinical trials.[5]

The PNC-27 research peptide has even been the subject of a fascinating Ted Talk. It can be seen conducted by Dr. Sarafraz-Yazdi, an Assistant Professor in the Division of Gynecologic Oncology at The State University of New York (SUNY).

PNC-27 Peptide Reviews

When the PNC-27 peptide is administered in animal studies, certain aspects have been noted in successful outcomes. Researchers have noted pain levels subjectively drop in a mean time of about a week. By the 3 week mark, animal subjects often present with flu-like symptoms, a likely indicator that subjects' immune systems are responding to the death of cancer cells.

At 6 weeks, lactate dehydrogenase and bilirubin levels typically increase. Substantial tumor breakdown in successful research outcomes is often observed at around the 10 week mark. At this time, the tumors are noted to become softer and more pliable.

Some increase in the size of the tumor itself may be noted at this time. However, this is often due to inflammation because of immune system response. By the end of 3 months, researchers often notice animal study subjects to exhibit increased energy levels and reduced cancer-related symptoms.

PNC-27 Side Effects in Studies

PNC-27 side effects have been observed in animal studies. These have included skin and nose inflammation, watery eyes, dry skin, high blood pressure, headache, back pain, nosebleed, rectal bleeding, taste change, and too much protein in the urine.

PNC-27 Clinical Trials

In a 2009 study, researchers found that the previously established 3 dimensional structure of PNC-27's p53 residues was directly superimposable on the structure for the same residues bound to HDM-2.[1] This led the researchers to infer that PNC-27 could target HDM-2 in cancer cells' membranes.

Notably, cancer cells have significant levels of HDM-2 in their membranes, while untransformed or noncancerous cells do not have significant levels of HDM-2. This allows the PNC-27 peptide to selectively target the cancerous cells, leaving undamaged the healthy surrounding tissue.[1]

Upon further experimentation, it was discovered that by implanting untransformed cells not susceptible to PNC-27 with HDM-2 containing a membrane localization signal, these cells then became susceptible to PNC-27. As a result, this constituted further evidence that the PNC-27 peptide was able to selectively target HDM-2 in the membranes of cancer cells and destroy them via membranolysis, all while leaving healthy cells unharmed.[1]

Further, in a 2010 study published in Cancer Chemotherapy and Pharmacology, researchers determined that PNC-27 exerts its cancer cell destroying effects as a whole peptide, not fragments.[2] With the knowledge that the peptide forms transmembrane pores in the cancer cell membrane, researchers set out to determine whether these pores were created by parts of the peptide (fragments) or by the entire peptide itself.

During the experiment, it was shown that it was indeed the entire peptide that exerts its effects in the cell membrane of cancer cells.[2] Further, it was observed that other nontransformed, or noncancerous, cells around the cancer cells "remained viable."[2]

From the results of the experiment, researchers gleaned that the PNC-27 cancer peptide targeted specific markers in the membranes of cancer cells. Also, via this mechanism of action, PNC-27's lifetime is increased.[2]

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